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SVFlux Tutorial Manual - SoilVision Systems, Ltd

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1. 30 6 1 Model Set p dssdo e ntn bbb erede bad hated etia eda 30 6 2 Results and DISCUSSIONS eneore cete e AR Eel nh n Ea E re a 39 7 Kulhawy Method 7 1 Model Setup 7 2 Results and Discussions deett sas Pe tre a Pe eee ai h ne Rue pe Ped Ru e doge 43 8 2D Hong Kong Example uy Ieri crier A ECCE SERRE Wawaqa 45 8d Model Setup steer eee aetema eat ti etd ede 8 2 Results and Discussion 8 Data MN 92D Cannon Dam Example y eee n 62 9 1 Model Setup uysha is rete teret to ere venter e ue ees e RETE re nde 62 9 2 Results nd DISCUSS OD utin teen sav re re rH Pen ee ni tee el e Reve uda i age se 68 9 3 Model Data 10 2D Spatial Variability Example rire u u W u 71 10 1 Model Setup tee eer irte tie Uere re NE Nhan isa 71 10 2 Results arid DISCUSSI OD raso arr teet eer eren 74 11 2D Two Way Sensitivity Analysis 75 11 1 Model Setup 112 Results and Dis CUSSIOFI at tn ote rende tec ede rd t te ab de a dau 78 12 3D M lti Planar Example onere ea tete eoe et U Sa SNS ee eese SS aS 79 12 1 Model Setup uu ll ese tein ere e vd eret 79 12 2 Results and DISCUSS ors acit tee dde diee et sea N eee Bee
2. The factor of safety vs time may be viewed as follows Select Slips gt FOS vs Time from the menu The graph shows the factor of safety decreasing over time The rainfall event ends at 1 day but the factor of safety continues to decrease until about 2 5 days as the rain infiltrates the soil After 2 5 days the factor of safety begins to rise as the soil begins to de saturate SOILVISION SYSTEMS LTD 2D Hong Kong Example 56 of 133 mel I M9 8 y p a TRANSLATE LABEL FactorofSafet 15 Time day 83 ModelData Region Geometries Region R1 Xm Yim _ 0 0 5444 Region R2 Ym arm SOILVISION SYSTEMS LTD 2D Hong Kong Example 57 of 133 3035 s 7868 _ Region R3 KONKON o ese soma s eum _ 20 dq nme Region R4 Ym IERI sm SOILVISION SYSTEMS LTD 2D Hong Kong Example 58 of 133 Return to Model Geometry Section SVFlux Material Properties Colluvium SWCC data Hydraulic conductivity data 7 SOILVISION SYSTEMS LTD 6 3 5 009 s oo Weathered Granite SWCC data Suction kPa C 2D Hong Kong Example 59 of 133 SOILVISION SYSTEMS LTD 2D Hong Kong Example 60 of 133 Hydraulic conductivity data 44 o 5 os T 73 03 2 43E 4
3. To select the point as part of the shape left click on the point Qv SUI MT ies Now move the cursor near 0 5 and left click the mouse A line is now drawn from 120 5 to 0 5 7 Inthe same manner then enter the following points 0 10 20 12 80 18 8 Move the cursor near the point 120 22 Double click on the point to finish the shape The shape is automatically finished by SVSLOPE by drawing a line from 120 22 back to the start point 120 5 Repeat this process to define the region R2 using the data provided in the table below Region 1 R1 NOTE If an error is made when entering the region geometry the user may recover from the error and start again by one of the following methods SOILVISION SYSTEMS LTD 3D Multi Planar Example 82 of 133 a Press the escape esc key b Select a region shape and press the delete key c Use the Undo function on the Edit menu c Specify Pore Water Pressure Model gt Water Pressure Generally information will be entered either for a water table or a piezometric line In this model a water table will be used In order to specify that a water table will be entered the must perform the following steps Select Model Pore Water Pressure Settings Select Water Surfaces as the Pore Water Pressure Method 3 Check the Allow application of RU coefficients with water surfaces or discrete points checkbox 4 Press OK to close the dialog The user must the
4. a Press the escape esc key b Select a Region Shape and press the delete key c Use the Undo function on the Edit menu If all model geometry has been entered correctly the shape should look like the diagram at the beginning of this tutorial d Specify Search Method Geometry This particular model makes use of a block search methodology The block search parameters may be entered through the following steps 1 Open the block search dialog through the Model Slip Surface Block Search menu option 2 Enter the right block search data and then left block search data as specified in the start of this tutorial 3 Click OK to close the dialog e Specify Pore Water Pressure Model gt Pore Water Pressure Generally information will be entered either for a water table or a piezometric line In this model a piezometric line will be used In order to specify that a piezometric line will be entered the user needs to following these steps 1 Select Model Pore Water Pressure Settings 2 Select Water Surfaces as the Pore Water Pressure Method SOILVISIOn SYSTEMS LTD Weak Layer Example 19 of 133 3 Press OK to close the dialog The user must then proceed to graphically enter the piezometric line Select Model Pore Water Pressure Piezometric Line Under the Points tab click on the New Line button Enter in the X m and Y m co ordinates as provided at the start of this tutorial pP s Press OK to close
5. GRID 1 Select Model gt Slip Surface gt Grid and Tangent Select the Grid tab Enter the values for the grid as provided in the table below the grid values may also be drawn on the CAD window 4 Move to entering the tangent values SOILVISIOn SYSTEMS LTD 3D Submergence Example 94 of 133 Lower Right X Increments 4 Y Increments 4 Lower Left TANGENT Select the Tangenttab 2 Enter the values for the tangent as provided in the table below the grid values may also be drawn on the CAD window 3 Press OK to close the dialog Accept the warning message stating that the corner of the grid is below the top of the slope 5 Press OK to close the dialog xm vw 12 Upper tert o 108 tower Left 108 Radius Increments 1 The grid and tangent graphics should now be displayed on the CAD window g Extrude 2D Model to 3D File gt Save As All of the previous steps may be transferred to a 3D version of this model A new model is created with 3D geometry by extruding the 2D cross section from the current model This is accomplished through the following steps 1 First save the current model by clicking File gt Save from the menu NOTE At this point the user may wish to analyze the 2D model to examine the factor of safety This process is described in the steps h and i below 2 Next to begin the extrusion process select File gt Save As from the menu Select the General tab
6. SOILVISION SYSTEMS LTD 3D General Sliding Surface 98 of 133 14 3D General Sliding Surface The following example is used to illustrate the use of a general sliding surface search method in determining the critical slip surface The example is modeled using one region three surfaces and two materials The purpose of this model is to demonstrate the entry of three dimensional surfaces defined as elevation data This original model can be found under Project Slopes_3D Model General_Sliding_Surface Minimum authorization required STANDARD Model Description and Geometry A simple 680 m by 500 m area is created Two surfaces that pinch out form a wedge like layer that contains the glacial till material The remainder of the model is composed of a waste rock material A water surface exits near the midpoint of the slope SOILVISION SYSTEMS LTD 3D General Sliding Surface 99 of 133 14 1 Model Setup In order to set up the model described in the preceding section the following steps are required The steps fall under the following general categories Create model Specify analysis settings Enter geometry Specify pore water pressure Apply material properties Specify search method geometry Run model gt a Visualize results The details of these outlined steps are given in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to b
7. SUSLOPE 2D Slope Stability Modeling Software Tutorial Manual Written by Murray Fredlund Ph D Tiequn Feng Ph D Robert Thode B Sc G F Edited by Murray Fredlund Ph D SoilVision Systems Ltd Saskatoon Saskatchewan Canada Software License The software described in this manual is furnished under a license agreement The software may be used or copied only in accordance with the terms of the agreement Software Support Support for the software is furnished under the terms of a support agreement Copyright Information contained within this Tutorial M anual is copyrighted and all rights are reserved by SoilVision Systems Ltd The SVSLOPE software is a proprietary product and trade secret of SoilVision Systems The Tutorial M anual may be reproduced or copied in whole or in part by the software licensee for use with running the software The Tutorial Manual may not be reproduced or copied in any form or by any means for the purpose of selling the copies Disclaimer of Warranty SoilVision Systems Ltd reserves the right to make periodic modifications of this product without obligation to notify any person of such revision SoilVision does not guarantee warrant or make any representation regarding the use of or the results of the programs in terms of correctness accuracy reliability currentness or otherwise the user is expected to make the final evaluation in the context of his her own problems Trademarks Wi
8. System 3D New File Name User Submergence 3D 3 Select the Spatial tab Enter the following model extrusion parameters SOILVISION SYSTEMS LTD 3D Submergence Example 95 of 133 Y minimum 0 ft Y maximum 200 ft 5 Press OK to close the dialog Press OK to accept the reset of some items 7 Select View gt Mode gt 3D to change the CAD to a 3D view NOTE X and Y coordinates in 2D become X and Z coordinates in 3D space with the model extrusion The Y coordinates for the search method geometry need to be updated in the 3D model 8 Select Model gt Slip Surface gt Grid and Tangent 9 Enter the following values for the Y coordinate Min Value 0 Max Value 0 No of Points 1 The slope limits also need to be reset in the new 3D geometry 10 Select Model gt Slope Limits Min x Oft Max x 441 ft Min y 0 ft Max y 200 ft 11 Press OK to close the dialog The 3D model is now complete and ready to be analyzed The view may be switched between 2D and 3D mode by using the View gt Mode menu item h Run Model Solve Analyze The next step is to analyze the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start i Visualize Results Window gt AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect th
9. pper Soil Mohr Coulomb Weak Layer Mohr Coulomb ower Soil I Run SVSlope Model Solve gt Analyze The next step is to analyze the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start 2 Press the OK button to close the dialog m Visualize Results Window gt AcuMesh After the model has been run an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on Yes The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH as appears in the diagrams following To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 6 2 Results and Discussions If the model has been appropriately entered into the software the following results should be shown for the SAFE method SOILVISION systems UTD Dynamic Programming Example 40 of 133 thod SAFE s Materials Dynamic Programming Total Activating Force 9 136E 002 kN Upper Layer Cohesion 10 kPa Phi 30 deg Unit Weight 15 kN m 3 35 0 Total Resisting Force 1 184E 003 kN Weak Layer Cohesion 0 KPa Phi 10 deg Unit Weight 18 i FOS 1 296 The correct results for this example are SVSLOPE Moment SAFE 2 ls 1 296 SOILVISION SYSTEMS LTD Kulhawy Method 41 of 133 7 Kulhawy Method The dynami
10. 2 Enter the values for the tangent as specified in the table below the grid values may also be drawn on the CAD window SOILVISION SYSTEMS LTD Basic Slope 11 of 133 3 Press OK to close the dialog Radius Increments 2 The grid and tangent graphics should now be displayed on the CAD window e Specify Pore Water Pressure Model gt Pore Water Pressure A water table or a piezometric line must be specified as an initial condition for this model In this model a piezometric line will be used In order to specify that a piezometric line will be entered the user needs to following these steps Select Model Pore Water Pressure Settings Select Water Surfaces as the Pore Water Pressure Method 3 Press OK to close the dialog The user must then proceed to graphically enter the piezometric line 1 2 3 4 Select Model gt Pore Water Pressure gt Piezometric Line Under the Points tab click on the New Line button Enter in the X and Y coordinates as provided in the table below Press OK to close the dialog f Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the two materials that will be used in the model R1 region will have the Upper Soil applied to it and R2 will have the Lower Soil applied This section will provide instructions on creating the Upper Soil Repeat the process to add the second material 1 Open the Materials d
11. Introduction 5 of 133 1 Introduction The Tutorial Manual serves a special role in guiding the first time users of the SVSLOPE software through a typical example problem The example is typical in the sense that it is not too rigorous on one hand and not too simple on the other hand In particular this tutorial manual is designed to guide users through the range of reasonable models which may be encountered in typical slope stability modeling The following examples represent the most typical models encountered in the traditional slope stability modeling practice and therefore include Basic Slope Weak Layer Example Geomembrane Example Dynamic Programming Example Kulhawy Method 3D Multi Planar Example 3D Submergence Example 3D General Sliding Surface Dv aa OS Nae a 2D Rapid Drawdown Example 10 3D Rapid Drawdown Example 11 Hong Kong Example and 12 3D Arbitrary Sliding Direction SOILVISION SYSTEMS LTD Authorization 6 of 133 2 Authorization Certain features in SVOFFICE are not available in the STUDENT version of the software Perform the following steps to check if STANDARD PROFESSIONAL or ELITE authorization is activated Plug in the USB security key 2 Select File gt Authorization from the menu on the SVOFFICE Project Manager The software will display the authorization under the Level Authorized heading If not the security codes provided by SoilVision Systems at the time of pu
12. Run Model Solve Analyze The next step is to analyze the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start i Visualize Results Window gt AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 14 2 Results and Discussion After the model has completed solving the user may view the results in the ACUMESH software by pressing the ACUMESH icon on the process toolbar The sliding mass is displayed in the CAD for the selected calculation method To switch between the results of the different calculation methods click on the drop down menu at the top of the screen and select the method you would like to view In order to view the sliding mass area more clearly the user may edit the Critical Sliding Mass dialog Select Slips Critical Sliding Mass from the menu 2 Under the Mass Explosion tab check the Show Sliding Mass with Explosion under 3D View checkbox 3 Move the Explosion distance slider to the right SOILVISION SYSTEMS LTD 3D General Sliding Surface 105 of 133 The analysis results in a factor o
13. Run model o Visualize results The details of these outlined steps are detailed in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present SOILVISION SYSTEMS LTD 2D Spatial Variability Example 72 of 133 a Create Model In order to create the spatial variability model save a copy of the Basic Slope model This is accomplished through the following steps Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Select the UserTutorial project and open the Basic Slope model The may begin with the VW 9 model under the Slopes Group 2 project if the Basic Slope Example was not created 4 Select File Save As from the menu 5 Type the name Spatial Variability Example and click OK A new model has been created and loaded into the workspace that will be modified to include spatial variability analysis b Specify Spatial Variability of Material Properties Model gt Materials gt Spatial Variability The next step is to enable spatial variability This is accomplished through the following steps Select Model gt Settings from the menu 2 Select the spatial variability tab Select the 2D Spatial Variability option with the following settings Generator Seed 500 Covariance Function dlavx2 4 Press OK to close the dialog Spatial variability allows a generat
14. deg Unit Weight 15 kN m 3 Lower Soil Cohesion 10 kPa Phi 25 deg Unit Weight 18 KN m 3 FoS 1 466 5 0 0 5 40 8 5 13 0 17 5 22 0 26 5 31 0 35 5 40 0 The correct results for this example are vend SVSLOPE Bishop Simplified 1 466 1 469 1 469 1 468 1 467 1 467 1 467 SOILVISION SYSTEMS LTD Weak Layer Example 14 of 133 4 Weak Layer Example This is a more complex example involving a weak layer pore water pressures and surcharges The ACADS verification program received a wide range of answers for this model and fully expected this during the program The soil parameters external loadings and piezometric surface are shown in the following diagram Tension cracks are ignored in this example The model requirement is that the noncircular slip surface and the corresponding factor of safety are required This original model can be found under Project Slopes Group 1 Model VS 9 Minimum authorization required to complete this tutorial STANDARD Model Description and Geometry A block search for the critical noncircular failure surface is carried out by defining two line searches to block search squares within the weak layer A number of different random surfaces were generated by the search and the results compared well with the actual results SOILVISION SYSTEMS LTD Weak Layer Example 15 84 368 Region R3 84 15 84 362 Material Properties Soil 2 0
15. ensure that the water surface has been applied to all surfaces by clicking the Select All button 11 Click OK to close the Water Table Properties dialog e Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the two materials that will be used in the model The Slope region cuts through all the surfaces in a model creating a separate block on each layer Each block can be assigned a material or be left as void A void area is essentially air space In this model all blocks will be assigned a material There are 3 surfaces resulting in two layers This section will provide instructions on creating the WasteRock material Repeat the process to add the GlacialTill material 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu 2 Click the New button to create a material Enter WasteRock for the material name in the dialog that appears and choose Mohr Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically 5 Move to the Shear Strength tab and enter the parameters provided in the table below Move to the Water Parameters tab Select On for the Water Surfaces Click the OK button to close the Mohr Coulomb dialog Repeat these steps to create the GlacialTill material 10 Oe N 10 Press the OK button on the Materials Manager d
16. gt Boundaries Now that all of the regions and the model geometry have been successfully defined the next step is to specify the boundary conditions A climate boundary condition will be applied to the overburden ground surface A climate boundary condition will be applied to the model to simulate rainfall The steps for specifying the boundary conditions are as follows 1 Open the Climate Manager dialog by selecting Model gt Boundaries gt Climate Manager from the menu 2 Click the New button to open the New Climate Data dialog 3 Enter Rainfall as the climate dataset name e Define Precipitation 4 Double click the precipitation cell for the Rainfall entry to open the Precipitation Properties dialog 5 Check Include For Input Option select Data Global Intensity 7 Set the Intensity Type to Parabolic SOILVISION SYSTEMS LTD 2D Hong Kong Example 49 of 133 8 10 11 12 Enter the data provided below in the data table The data can be cut and pasted from the table below into the dialog Switch to the Global Intensity tab Enter 8 hrs for the Intensity Start Enter 14 hrs for the Intensity End Click OK to save and close the Precipitation Properties dialog Flux m day m ee EUN Apply boundary conditions to geometry To apply the Rainfall precipitation event to the model ground surface perform the following steps OY OL a eg 10 11 12 13 14 15 Select the t
17. in the Model Name box 4 Select the following entries Application SVFLUX SOILVISION SYSTEMS LTD 2D Hong Kong Example 47 of 133 9 System 2D Type Transient Units Metric Time Units day Click on the World Coordinate System tab Enter the World Coordinates System coordinates shown below into the dialog leave global offsets as zero x min 0 x max 150 y min 0 y max 100 Click on the Time tab Enter the following values for time Start Time 0 Initial Increment 0 1 Maximum Increment 0 2 End Time 3 Click the OK button to save the model and close the New Model dialog 10 The Options dialog will appear Click OK to accept a default horizontal and vertical spacing of 1m b Enter Geometry Model gt Geometry Model geometry is defined as a set of regions and a series of layers Geometry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models This model will be divided into four regions which are named R1 R2 R3 and R4 The shapes that define each material region can be created by the following steps 1 Open the Regions dialog by selecting Model Geometry Regions from the menu Click the New button 3 times to create the second third and fourth regions Select the region R1 and click the Properties button to open the Region Properties dialog Click the New Polygon button to open the New Poly
18. 7 consecutive points in the boundary conditions list 16 For the next point in the list 88 396 32 423 select a No BC boundary condition from the Boundary Condition drop down 17 Click OK to any pop ups that appear 18 Click OK to close the Boundary Conditions dialog e Apply SVFlux Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the four SVFlux materials used in the model The parameter values for all materials are provided in the table below The SWCC and hydraulic conductivity data for the Colluvium and WeatheredGranite materials is provided at the end of this tutorial Note that the LessWeatheredGranite and Bedrock materials do not contain SWCC and hydraulic conductivity data so the Fredlund and Xing fitting parameters af nf mf and hr must be entered directly into the Fredlund amp Xing Fit dialog by the user rather than using the Apply Fit button to have the software calculate these values 1 Open the Materials dialog by selecting Model Materials Manager from the menu 2 Click the New button to open the New Materials dialog 3 Enter Colluvium for the material name 4 Set Data Type to Unsaturated 5 Click OK and the Material Properties dialog will open 6 Enter the parameter values and data for the Colluvium material as provided in the table below and at the end of this tutorial 7 Click OK to save and close the Material Propertie
19. Point Right Point X s 17 41686 90 115 80 561 SOILVISION SYSTEMS LTD 2D Hong Kong Example 53 of 133 k Specify Pore Water Pressure Model gt Pore Water Pressure Pore water pressure profiles from the SVFlux solution are used in the SVSlope model To specify which profiles are to be used in solving the SVSlope model follow these steps Select Model gt Pore Water Pressure gt Settings Select the PWP Times tab to view the available pore water pressure profiles Ensure that all times are checked Press OK to close the dialog and accept this list of time values l Apply SVSlope Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the four materials that will be used in the SVSlope model This section will provide instructions on creating the Colluvium material Repeat the process to add the other materials 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu Click the New button to create a material 3 Enter Colluvium for the material name in the dialog that appears and choose Unsaturated Phi b for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically 5 Enter the parameter values provided in the table below for each of the four materials 6 Click the OK button to close the Material Properties dialog Shear S
20. SOILVISION SYSTEMS LTD 3D Submergence Example 91 of 133 If an error is made when entering the region geometry the user may recover from the error and start again by one of the following methods a Press the escape esc key b Select a region shape and press the delete key c Use the Undo function on the Edit menu Region 1 R1 X ft Y ft 440 250 Region 3 R3 Y fO SOILVISIOn SYSTEMS LTD 3D Submergence Example 92 of 133 d Specify Pore Water Pressure Model gt Pore Water Pressure Initial conditions are generally associated with transient model runs Their purpose is to provide a reasonable starting point for the solver In a steady state model initial conditions can be used to precondition the solver to allow faster convergence Generally speaking the user will enter information either for a water table or a piezometric line In this model a water table will be used In order to specify that a water table will be entered the user must perform the following steps 1 Select Model Pore Water Pressure Settings 2 Select Water Surfaces as the Pore Water Pressure Method 3 Press OK to close the dialog The user must then proceed to enter the water table coordinates 1 Select Model Pore Water Pressure Water Table from the menu 2 Under the Points tab enter the X and Y coordinates as provided in the table below by copying the values excluding the header and clicking the Paste Points but
21. SVSlope with SVFlux are as follows 1 Press File Save to save a copy of the steps so far in the current model as the Add Coupling operation creates a new model Select File Add Coupling The Add Coupling dialog will be displayed Check the SVSlope box Note that this process creates a new model file with the combined components Oe in the same Project Enter Hong Kong Example coupled as the New File Name 7 Click OK to close the dialog The remaining steps in this tutorial are related to the SVSlope part of the model To switch the model view to the SVSlope component of the model select Window SVSlope from the menu or click on the SVSlope icon on the sidebar near the top left of the screen g Specify SVFlux Model Output OUTPUT MANAGER Model Reporting Output Manager The output manager dialog is used to specify information to export to other software including SVSlope and the AcuMesh visualization software Since a combined SVFlux SVSlope model is being created an output file of the finite element pore water pressure results is specified by default in addition to the default SOILVISION SYSTEMS LTD 2D Hong Kong Example 52 of 133 AcuMeshInput dat h Run Model Solve gt Analyze The next step is to analyze the model Select Solve gt Analyze from the menu This action will write the descriptor file and open the FlexPDE solver The solver will automatically begin solving the model After the
22. Sandy Clay material to this region Select the R2 region and assign the Silty Clay material to this region SOILVISION SYSTEMS LTD Geomembrane Example 28 of 133 4 Press the OK button to accept the changes and close the dialog h Add Supports Model gt Support The next step is to analyze the model 1 Open the Support Type Manager dialog by selecting Model gt Support gt Type Manager from the menu Press the New button to open the New Support Property dialog Select Geotextile as the Support Type and enter a name Click OK Select Passive as the Force Application Set 0 kPa for Adhesion Click OK to close the Support Type Manager Qo wb gm Open the Support Geometry dialog by selecting Model gt Support gt Geometry from the menu 9 Click New to create a new support entry 10 Leave the Orientation as None and enter the coordinates 18 6 and 6 6 11 Select Geotextile as the Property Name 12 Click New to create a second support entry 13 Leave the Orientation as None and enter the coordinates 14 10 and 2 10 14 Select Geotextile as the Property Name 15 Click OK to close the dialog i Run Model Solve Analyze The next step is to analyze the model 16 Select Solve Analyze from the menu A pop up dialog will appear 17 Click on the green arrow button on the bottom of the dialog to start the solver This action will finish the calculations and save the results 18 Click
23. a set of coordinates Model Geometry can also be imported from either DXF files or from existing models The shapes that define each region will now be created Refer to the data at the end of this tutorial for the geometry points for the four regions e Define Region R1 LM DE ME Select Draw Geometry Polygon Region from the menu The cursor will now be changed to a cross hair Move the cursor near 1005 550 in the drawing space To select the point as part of the shape left click on the point Now move the cursor near 870 380 and left click the mouse A line is now drawn from 1005 550 to 870 380 In the same manner then enter the following points 550 380 700 450 Move the cursor near the point 770 450 Double click on the point to finish the shape A line is now drawn from 700 450 to 770 450 The shape is automatically finished by SVSLOPE by drawing a line from 770 450 back to the start point 10005 550 Repeat this process to define the regions R2 R3 and R4 NOTE SOILVISION SYSTEMS LTD 2D Rapid Drawdown Example 109 of 133 If an error is made when entering the region geometry the user may recover from the error and start again by one of the following methods a Press the escape esc key b Select a region shape and press the delete key c Use the Undo function on the Edit menu d Specify Pore Water Pressure Model gt Water Pressure Initial and final conditions are used
24. called VW 6 Tutorial by pressing the New button next to the list of models The new model will be automatically added under the recently created UserTutorial project Use the settings below when creating this new model 5 Select the following Application SVSLOPE System 2D Units Metric Slip Direction Left to Right SOILVISION SYSTEMS LTD Geomembrane Example 25 of 133 Click on the World Coordinate System tab Enter the World Coordinates System coordinates shown below into the dialog x min 2 x max 30 y 2 y max 18 Click OK to close the dialog Click OK to accept the default Options dialog settings b Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what type of analysis will be performed These settings will be specified as follows Select Model gt Settings from the menu Select the Slip Surface tab Slip Direction Left to Right Slip Shape Circular Search Method Grid and Tangent Select the Calculation Methods tab from the dialog and select the method types as shown below Ordinary Fellenius Bishop Simplified Janbu Simplified Morgenstern Price GLE Fredlund For GLE method press the Lambda button Enter a Start Value of 1 25 an Interval of 0 25 and a Number of 11 Press the Generate button Press OK to close the dialogs c Enter Geometry Model gt Geometry Model geometry is defined as a set of regions Geo
25. details of these outlined steps are given in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Create a new project called UserTutorial by pressing the New button next to the list of projects 4 Create a new model called Basic Slope by pressing the New button next to the list of models Use the settings below when creating this new model Application SVSLOPE Model Name Basic Slope Units Metric Slip Direction Left to Right 5 Click on the World Coordinate System tab Enter the World Coordinates System coordinates shown below into the dialog x min 2 x max 40 y min 2 y max 25 7 Click on OK The new model will be automatically added under the recently created UserTutorial project SVSLOPE now opens to show a grid and the Options dialog View gt Options pops up Click OK to accept the default horizontal and vertical grid spacing b Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what model output will be available in ACUMESH These settings will be specified as follows 1 Select Mode gt Settings from the menu 2 Move to the Slip Surface tab and notice that the following items a
26. have been successfully defined the next step is to specify the boundary conditions The sides of the model will be fixed in the x direction to prevent lateral movement and the model will be fixed in both directions at its base The steps for specifying the boundary conditions are as follows SOILVISION SYSTEMS UTD Dynamic Programming Example 34 of 133 Upper Layer Select the Upper Layer region in the region selector From the menu select Model gt Boundaries gt Boundary Conditions The boundary conditions dialog will open By default the first boundary segment will be given a Free condition in both the x and y directions Select the point 0 27 from the list on the Segment Boundary Conditions tab From the X Boundary Condition drop down select a Fixed boundary condition Select the point 0 13 from the list From the X Boundary Condition drop down select a Free boundary condition Select the point 80 13 from the list From the X Boundary Condition drop down select a Fixed boundary condition Select the point 80 15 from the list From the X Boundary Condition drop down select a Free boundary condition Click OK to save the input Boundary Conditions and return to the workspace NOTE The Free Y boundary condition for the point 0 27 becomes the boundary condition for the following line segments that have a Y Continue boundary condition and the Free X boundary condition for the point 0 13 becomes the boundary condit
27. model has finished solving the results will be displayed in the dialog of thumbnail plots within the FlexPDE solver Right click the mouse and select Maximize to enlarge any of the thumbnail plots These reports are intended to provide the user with low quality graphs which give a rough indication of the results Creating professional quality visualizations of the results can be accomplished with ACUMESH software i Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what type of analysis will be performed These settings are specified as follows Select Model gt Settings from the menu 2 Select the Slip Surface tab Slip Direction Left to Right Slip Shape Circular Search Method Entry and Exit 3 Selectthe Calculation Methods tab from the dialog and select the method types as shown below Spencer Morgenstern Price GLE Fredlund 4 Press OK to close the dialog Specify Search Method Geometry The Entry and Exit method of searching for the critical slip surface has already been selected in the previous step Now the user must specify the geometry that defines the search method This is accomplished through the following steps 1 Open the Entry and Exit dialog through the Model Slip Surface Entry and Exit menu option 2 Enter the values for the entry range and exit range as specified in the table below 3 Click OK to close the dialog Left Side Left
28. of contours is not appropriate Lower Soil c 7 7 7 7 7 8 8 8 8 9 94 cose Saar 2 0 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 X m c Run Model Solve gt Analyze The next step is to analyze the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start d Visualize Results Window gt AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you SOILVISION SYSTEMS LTD 2D Spatial Variability Example 74 of 133 want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 10 2 Results and Discussion The critical slip surface for the numerical model is displayed when the model is first opened in ACUMESH The critical slip surface for Bishop s method is shown below The FOS values have been increased for all calculation methods by using spatial variability in the model 134 138 142 FOS 1 564 Y m SOILvision systems utp 2D Two Way Sensitivity Analysis 75 of 133 11 2D Two Way Sensitivity Analysis This tutorial illustrates a re analysis of a classic model analyzed using a sensitivity analysis The Basic Slope model is used as a start
29. software by pressing the ACUMESH icon on the process toolbar The sliding mass is displayed in the CAD for the selected calculation method To switch between the results of the different calculation methods click on the drop down menu at the top of the screen and select the method you would like to view In order to view the sliding mass area more clearly the user may edit the Critical Sliding Mass dialog Select Slips gt Critical Sliding Mass from the menu 2 Under the Mass Explosion tab uncheck the Show Sliding Mass with Explosion under 3D View checkbox The analysis results in a factor of safety of 1 172 for the Spencer method SOILVISION SYSTEMS LTD 3D Multi Planar Example 86 of 133 Calculation Method Spencer s Search Method Fully Specified Wedges FOS 1 172 Total Mass 3 577E 006 kPa Total Volume 1 987E 005 m 3 Total Activating Moment 1 213E 008 kNm Total Resisting Moment 1 421 008 kNm Total Activating Force 9 818E 005 kN Total Resisting Force 1 151E 006 kN Total Active Columns 5412 Total Sliding Surface Area 1 4E 04 m 2 Center Point X 27 892 Y 90 000 Z 133 562 2 m 20 The user may also plot the column information for a particular column chosen either in plan view or from a vertical cross section The column information settings are set in the Column Information dialog To access this dialog first click on a 2D view of the model by selecting one of the 2D options under View Mode Then click
30. the Paste Points button do not copy the header row 4 Press OK to close the dialogs Region R1 10 This model consists of two surfaces By default every model initially has two surfaces e Define Surface 1 This surface will be defined by providing a constant elevation 1 Select Model Geometry Surfaces from the menu to open the Surfaces dialog 2 Select the row containing Surface 1 in the surface list and click the Properties button For the Surface Definition Option select Constant from the drop down Click on the Constant tab Enter an Elevation of O Click OK to close the dialog gx Ur XU e Define Surface 2 SOILVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 121 of 133 This surface will be defined by providing a regular grid of X and Y grid lines and corresponding elevations 1 gt MEME Select the row containing Surface 2 in the surface list and click the Properties button Select Elevation Data from the Definition Options Click the Paste Data Grid button to set up the grid for the selected surface Copy the X Y Z data grid for Surface 2 found in the csv file 3D Arbitrary Sliding Direction Data for Surface 2 do not include the header information Click the Paste Points button on the Paste Data Grid dialog Click OK to close the Paste Data Grid dialog Click OK to close the Surface Properties dialog Click OK to close the Surfaces dialog If all model geom
31. the dialog f Specify Loading Conditions Two distributed loads are applied in this numerical model The instructions for applying these distributed loads are as follows 1 Select Draw Loading Distributed Load then 2 Enter the data as provided in the start of this tutorial 3 Click OK to close the dialog You will need to do this for each load separately g Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the two materials that will be used in the model R1 region will have the Upper Soil applied to it and R2 will have the Lower Soil applied to it This section will provide instructions on creating the Upper Soil Repeat the process to add the second material 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu 2 Click the New button to create a material Enter Upper Soil for the material name in the dialog that appears and choose Mohr Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE When a new material is created you can specify the display color of the material using the Fill Color box on the Material Properties menu Any region that has a material assigned to it will display that material s fill color Move to the Shear Strength tab Enter the Unit Weight value of 18 84 kN m 3 Enter the Cohesion c
32. user to modeling in SVSLOPE using the SAFE DP stress based limit equilibrium calculation method and the Dynamic Programming search method for non circular slip surfaces The purpose of this model is to determine the factor of safety of a simple model The model dimensions and material properties are in the next section This example consists of a three layer slope with a thin weak layer A combination of SVSolid and SVSlope are used to solve this model The purpose of this example is to illustrate the calculation of the factor of safety for a the slope This original model can be found under Project Slopes STUDENT Model SAFE 52 EDU Minimum authorization required to complete this tutorial PROFESSIONAL Model Description and Geometry 61 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the general categories of SVSolid Steps Create model Enter geometry Specify boundary conditions Apply SVSolid material properties Combine SVSlope with SVSolid 00 SOILVISION SYSTEMS LTD Dynamic Programming Example 31 of 133 f Specify model output g Run SVSolid model SVSlope Steps h Specify analysis settings i Specify dynamic programming grid Specify search boundary coordinates J k Apply SVSlope material properties Run SVSlope model m Visualize results The details of these outlined steps are given in the following
33. value of 28 5 kPa Enter the Friction Angle phi value of 20 0 degrees Click the OK button to close the Shear Strength dialog 10 Repeat these steps to create the Lower Soil material using the information provided at the beginning of the tutorial Once all material properties have been entered we must apply the materials to the corresponding regions SOILVISIOn SYSTEMS LTD Weak Layer Example 20 of 133 1 Open the Region Properties dialog by selecting Model Geometry Region Properties from the menu Select the R1 region and assign the Upper Soil material to this region Select the R2 region and assign the Lower Soil material to this region Select the R3 region and assign the Upper Soil material to this region gnis am Press the OK button to accept the changes and close the dialog h Run Model Solve gt Analyze The next step is to analyze the model 1 Select Solve Analyze from the menu A pop up dialog will appear and the solver will start 2 Press the OK button to close the dialog i Visualize Results Window AcuMesh After the model has been run an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on Yes The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH as appears in the diagrams following To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the
34. 0 100 1884 Piezometric Line PL amp Xem Yc m 4 Loading Type Trapezoid kN m Block Search Parameters Left Block 43 24 807 43 24 807 50 26 769 X increments 10 Y increments 1 Start Angle 135 degrees End Angle 155 degrees Left Increments 2 SOILVISIOn SYSTEMS LTD Weak Layer Example 16 of 133 Right Block 70 32 376 70 32 376 80 35 179 X increments 10 Y increments 1 Start Angle 45 degrees End Angle 65 degrees Right Increments 2 4 34 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the general categories of Create model Specify analysis settings Enter geometry Specify search method geometry Specify pore water pressure Specify loading conditions Apply material properties 2070000 Run model Visualize results The details of these outlined steps are given in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model The following steps are required to create the model 1 Open the SVOFFICE Manager dialog Press the Clear Search button if enabled 3 Create a new project called UserTutorial by pressing the New button next to the list of projects 4 Create a new model called Weak Layer Example by pressing the New button next to t
35. 2 The default plots for the model are automatically generated and displayed in the plot manager 3 Use the Properties button to view more details on any of the plots listed Click OK to close the Plot Manager and return to the workspace OUTPUT MANAGER Model Reporting Output Manager The output manager dialog is used to specify information to export to other software including SVSlope and the AcuMesh visualization software Since a combined SVSolid SVSlope model is being created an output file of the finite element stress results is specified by default in addition to the AcuMeshInput dat file g Run Model Solve gt Analyze The next step is to analyze the SVSolid component of the model Select Solve Analyze from the menu This action will write the descriptor file and open the FlexPDE solver The solver will automatically begin solving the model After the model has finished solving the results will be displayed in the dialog of thumbnail plots within the FlexPDE solver Right click the mouse and select Maximize to enlarge any of the thumbnail plots This section will give a brief analysis for each plot that was generated These reports are intended to provide the user with low quality graphs which give a rough indication of the results Creating professional quality visualizations of the results can be accomplished with ACUMESH software h Specify Analysis Settings Model gt Settings The Analysis Settings are set by d
36. 253 40 1 62E 6 303 06 7 32 7 SOILVISION SYSTEMS LTD 2D Hong Kong Example 61 of 133 Return to Apply SVFlux Material Properties Section SOILVISION SYSTEMS LTD 2D Cannon Dam Example 62 of 133 9 2D Cannon Dam Example The Cannon Dam Model was published by Wolff and Harr 1987 The probabilistic analysis results from SVSLOPE using the Monte Carlo method are compared to the results published in the paper by Wolff and Harr for noncircular slip surfaces Wolff and Harr 1987 used the point estimate method for their probability analysis failure for the Cannon Dam The location of critical slip surface was assumed fixed and taken from their paper The friction angle input parameter for the Phase I and Phase II fills was calculated The unit weights of the fills were back calculated in order to match the factor of safety computed by Wolff and Harr The results published by Wolff and Harr 1987 were compared to those obtained by the GLE and the Spencer methods It is assumed in the SVSLOPE model that all the probabilistic input variables are normally distributed This original model can be found under Project Verification_SVSlope_Group1 Model VS_34 Minimum authorization required to complete this tutorial FULL Model Geometry t t 400 300 200 100 0 100 200 300 400 500 600 9 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The step
37. D Cannon Dam Example 67 of 133 3 Click the Add Remove button to open the Add Remove Probabilistic Parameters dialog 4 Expand the Phase I Fill and Phase II Fill tree items and check the c and Phi parameters for each item 5 Click the OK button to close the dialog and populate the Probability Parameters data grid 6 Enter the values shown in the table below for each material parameter Material Property Distribution Mean St Dev PhaseIFill Noma 2230 1150 cmm iE PhaseIFil Phi Noma 6 33 7 87 6 33 633 Phase II Fill 2901 6 1107 9 2901 6 2901 6 Phase II Fi 7 Press the OK button to accept the changes and close the dialogs Now that all material properties have been entered we must apply the materials to the corresponding regions 1 Open the Region Properties dialog by selecting Model Geometry Region Properties from the menu 2 For each region the appropriate material type must be selected from the combo box The material assignments should be as follows R1 Phase II Fill R2 Filter R3 Phase I Fill R4 Spoil Fill R5 Material 3 R6 Material 3 R7 Material 4 3 Press the OK button to accept the changes and close the dialog g Run Model Solve gt Analyze The next step is to analyze the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start h Visualize Results Window gt AcuMesh After the model has completed sol
38. LVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 125 of 133 a 3 mig m Z 9 lt q 5 31 7 2 t FOS vs Sliding Direction Angle J 2 0 2 Sliding Direction Angle Deg SOILVISION SYSTEMS LTD 3D Open Pit Analysis 126 of 133 18 3D Open Pit Analysis This example is used to illustrate the analysis of a three dimensional slope stability model for the slope of an open pit The slip direction is taken as parallel to the x axis A assumed fault is input into the software The searching for the slip surface uses a combination of elliptical entry and exit slip surfaces as well as intersection with a fault This original model can be found under Project Slopes_3D Model Open_Pit_LEM_32_Fast Minimum authorization required to complete this tutorial PROFESSIONAL Model Geometry 18 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the general categories of Create model Enter geometry Specify analysis settings Specify search method geometry Apply material properties Run model Visualize results o The details of these outlined steps are given in the following sections SOILVISIOn SYSTEMS LTD 3D Open Pit Analysis 127 of 133 NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently prese
39. N SYSTEMS LTD 3D Rapid Drawdown Example 114 of 133 16 Rapid Drawdown Example The following example is used to illustrate the analysis of the 2D Rapid Drawdown Example tutorial model extended to a three dimensional model The purpose of this model is to compare the factor of safety to that found in the two dimensional version of this model This original model can be found under Project Slopes_3D Model RDD_Pumped_Storage_Project_Dam_3D Minimum authorization required PROFESSIONAL Model Description and Geometry This model extends the 2D Rapid Drawdown Example tutorial model into three dimensions by using a width of 1000 ft All other aspects of this model are the same as those found in the two dimensional version Z ft 2000 2070 16 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the following general categories Open 2D Rapid Drawdown Example tutorial model Extrude 2D Model to 3D Run model Visualize results The details of these outlined steps are given in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Open 2D Rapid Drawdown Example Tutorial Model This model begins with a two dimensional version To open the model follow these steps SOILVISIOn SYSTEMS LTD 3D Rapid Drawdown E
40. N m 3 er s Method ch Method Block 082E 003 kPa 2 1676 002 m3 sting Moment 3 754E 004 kNm R vating Momen 063E 004 kNm sting Force 7 551E 002 kN Total Activating Force 1 019 003 kN 45 0 40 0 35 0 25 0 20 0 15 0 10 0 SOILVISION SYSTEMS LTD Geomembrane Example 22 of 133 5 Geomembrane Example The following example will introduce some of the features included in SVSLOPE and will set up a model using the limit equilibrium method of slices and the Grid and Radius search method for circular slip surfaces The purpose of this model is to determine the effects of reinforcements The model dimensions and material properties are in the next section This original model can be found under Project Slopes_Group_2 Model VW 6 Fabric Minimum authorization required to complete this tutorial STANDARD Model Description and Geometry Materials Sandy Clay Cohesion 10 kPa Phi 30 deg Unit Weight 18 kNIm 3 Silty Clay Cohesion 10 kPa Phi 25 deg Unit Weight 18 kN m 3 Y m 5 0 0 0 5 0 10 0 15 0 20 0 25 0 30 0 Region Geometries Region R1 SOILVISION SYSTEMS LTD Geomembrane Example 23 of 133 Material Properties Sandy Clay Shear Strength Unit Weight Cohesion c Friction Angle phi Type kN m 3 kPa deg Mohr Coulomb 18 10 30 Silty Clay Shear Strength Unit Weight Cohesion c Friction Angle phi Type kN m 3 kPa deg Mohr Coulomb 18 10 25 Grid a
41. Open Pit do not include the header information Click the Paste Points button on the Paste Data Grid dialog Click OK to close the Paste Data Grid dialog Click OK to close the Surface Properties dialog D o wow Click OK to close the Surfaces dialog SOILVISIOn SYSTEMS LTD 3D Open Pit Analysis 129 of 133 Define Surface 3 This surface will be defined by providing a regular grid of X and Y grid lines and corresponding elevations 9 Select the row containing Surface 3 in the surface list and click the Properties button 10 Select Elevation Data from the Definition Options 11 Click the Paste Data Grid button to set up the grid for the selected surface 12 Copy the X Y Z data grid for Surface 3 found in the XLS file Open Pit do not include the header information 13 Click the Paste Points button on the Paste Data Grid dialog 14 Click OK to close the Paste Data Grid dialog 15 Click OK to close the Surface Properties dialog 16 Click OK to close the Surfaces dialog If all model geometry has been entered correctly the shape should look like the diagram at the start of this tutorial c Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what model output will be available in ACUMESH These settings are specified as follows Select Model gt Settings from the menu 2 On the 3D Slip Surface tab select the Entry and Exit with Fully Specified Wedges
42. al model can be found under Project Slopes_3D Model Multi_Planar_Wedges Minimum authorization required STANDARD Model Description and Geometry A simple 120m by 180m area is created A non level plane is added to model the ground surface A triangular pile is then added to the flat ground surface 12 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the following general categories Create model Enter geometry Specify pore water pressure ao 0 9 Apply material properties SOILVISION SYSTEMS LTD 3D Multi Planar Example 80 of 133 m oOo Extrude 2D model to 3D Specify analysis settings Specify search method geometry Run model Visualize results The details of these outlined steps are given in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model STANDARD authorization is required for this tutorial The steps to ensure that STANDARD authorization is activated are described in the Authorization section The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Create a new project called UserTutorial by pressing the New button next to the list of projects 4 Create a new model called UserMultiWe
43. analysis The default parameter ranges will be used and are shown in the following table Global Material Property C kPa 5 phi dea s 5 Move to the Two Way Pairs tab Click on the data grid cell in the Parameter 1 column and click on the Edit button Check the c parameter check box and click OK to close the dialog Click on the data grid cell in the Parameter 2 column and click on the Edit button 9 Check the Phi parameter check box and click OK to close the dialog 10 The list of parameter values for each model run can be seen on the Run List tab and should appear as follows 11 Click OK to close the Materials Manager dialog c Run Model Solve gt Analyze The next step is to analyze the model SoOILvVIsSIOn SYSTEMS LTD 2D Two Way Sensitivity Analysis 78 of 133 1 Select Solve Analyze from the menu A pop up dialog will appear and the solver will start d Visualize Results Window gt AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 11 2 Results and Discussion The results of performing a sens
44. and Towards negative X slip direction 3 Move to the Calculation Methods tab and select the method type as shown below Bishop Simplified 4 Move to the Convergence tab and enter the values as follows Note that a coarser column grid and reduced number of slices are defined in order to decrease the model solving time These modifications were found to have little effect on the factor of safety compared to the default values Number of rows Y direction 100 Number of slices 100 Tolerance 0 001 Maximum number of iterations 50 Minimum slide surface depth 50 Minimum number of active columns 40 SOILVISION SYSTEMS LTD 3D Open Pit Analysis 130 of 133 5 Press OK to close the dialogs d Specify Search Method Geometry The Entry and Exit method of searching for the critical slip surface has already been selected in a previous step Now the user must specify the geometry for each of these objects This is accomplished through the following steps SR X Entry Range Right Side Ext Range Left Side Range Point Range Point Left Point Right Point Left Point Right Point x 3847313 X I X 2200 X 1 016978 Z 1070138 z 43465 Z Increments 26 Do Dic LEN Disc Material J em J e Apply Material Properties Model gt Materials The next step in defining the model is to enter the material property for the material that will be used in the model This section will pr
45. ant factors of safety The model is developed from Jiang Can Geotech J 40 308 325 2003 Jiang results were a FOS 1 33 using the Dynamic Programming search method and the Janbu analysis method This original model can be found under Project Slopes_3D Model Arbitrary_Sliding_Direction Minimum authorization required to complete this tutorial ELITE Model Geometry Z m SOILVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 119 of 133 17 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the general categories of Create model Enter geometry Specify analysis settings Specify search method geometry Apply material properties Run model m Visualize results The details of these outlined steps are given in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model ELITE authorization is required for this tutorial The steps to ensure that ELITE authorization is activated are described in the Authorization section The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Select an existing project or create a new project called UserTutorial by pressing the Create New Project icon found above the l
46. awn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models This model will be divided into three regions which are named Upper Layer Weak Layer and Lower Layer Each region will have one of the materials listed above specified as its material properties The shapes that define each material region will now be created e Define Upper Layer Region Select Draw Geometry Polygon Region from the menu 2 The cursor will now be changed to a cross hair Move the cursor near 0 27 in the drawing space You can view the coordinates of the current position of the mouse in the status bar 4 To select the point as part of the shape left click on the point 5 Now move the cursor near 0 13 and left click the mouse A line is now drawn from 0 27 to 0 13 6 Inthe same manner then enter the following points 80 13 80 15 44 15 7 Move the cursor near the point 20 27 Double click on the point to finish the shape A line is now drawn from 44 15 to 20 27 and the shape is automatically finished by SVSLOPE by drawing a line from 20 27 back to the start point 0 27 Repeat this process to define the Weak Layer and Lower Layer regions according to the data provided in the tables below Region Upper Layer SOILVISION SYSTEMS UTD Dynamic Programming Example 33 of 133 13 Region Lower Layer NOTE If an error is made when en
47. c GSS 85 13 3D Submergence Example 13 1 Model Set p Pr be e sli e Eee e teet e be rede sau ERES te Peer te 13 2 Results and DISCUSSIONS i cc cccccccecctcccececassevdestecsssecsansescoasecsanssavaedsesecsavsecetevessstuvcabdaedandsssrsaseeves 95 14 3D General Sliding Surface I I teo ui qana epe e neun ee Seed Re ES Sn 14 1 Model Set p am L SL terr etr tee e e irit E e ix eel le Peer NER eva PEE Mn 14 2 Results and Discussion SOILVISION SYSTEMS LTD Table of Contents 4 of 133 15 2D Rapid Drawdown Example 106 CITUR 106 1522 Results and DIs CUSSLODIx oe ao eere e etc RR RORIS ra RENI HE 111 15 3 Model Data an 112 16 3D Rapid Drawdown Example 114 t6 1T Model Se t p iid ditte t ite tr p e I e e E na d t betta 114 16 2 Results and DISCUSSTOF re nn hei ea ran rie RUF inan 116 17 3D Arbitrary Sliding Direction 118 17 1 Model S tup 119 17 2 Results and DISCcUSSiODYVa rura o o eere a i ta ER Foe op eet DEREN 123 18 3D Open Pit Analysis oor c anu qa Ee unqu 126 18 1 Model Set p ih Rd oa mee dele e HR Re d o e E Odd 126 18 2 Results and DISCUSSION uu s a aaa t tid nen eie o o E d es 132 SOILVISION SYSTEMS LTD
48. c programming example presented in Section 5 is extended to incorporate the Kulhawy stress based slope stability analysis method This original model can be found under Project Slopes_STUDENT Model SAFE_52_Kulhawy_EDU Minimum authorization required to complete this tutorial PROFESSIONAL Model Description and Geometry 44 15 M 80 15 X m Entry and Exit Entry Range Exit Range Left Side Right Side X Y X Y Left Point 9 27 Left Point 40 17 Right Point 23 25 5 Right Point 55 15 Increments 12 Increments 12 7 4 Model Setup The following steps will be required to set up this model a Create model b Specify analysis settings C Specify search method geometry SOILVISION SYSTEMS LTD Kulhawy Method 42 of 133 d Run SVSolid model e Run SVSlope model f Visualize results NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model Since PROFESSIONAL authorization is required for this tutorial perform the following steps to ensure PROFESSIONAL authorization is activated 1 Plug in the USB security key 2 Goto the File Authorization dialog on the SVOFFICE Manager 3 Software should display PROFESSIONAL authorization If not it means that the security codes provided by SoilVision Systems at the time of purchase have not yet been entered Please see the Authorization section of the SVOFFICE User s Manua
49. d Tangent Select the Calculation Methods tab from the dialog and select the method types as shown below Bishop Simplified Janbu Simplified Select the Convergence tab from the menu Number of slices 50 Press OK to close the dialog c Enter Geometry Model gt Geometry Model geometry is defined as a set of regions and a series of layers Geometry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models The shapes that define each region will now be created Refer to the tables below for the geometry points for the four regions e Define Region R1 SUI E e Select R1from the Region Selector Select Draw Geometry Polygon Region from the menu The cursor will now be changed to a cross hair Move the cursor near 500 50 in the drawing space To select the point as part of the shape left click on the point Now move the cursor near 0 50 and left click the mouse A line is now drawn from 500 50 to 0 50 In the same manner then enter the following points 0 107 193 107 196 103 219 103 225 107 Move the cursor near the point 500 107 Double click on the point to finish the shape A line is now drawn from 225 107 to 500 107 The shape is automatically finished by SVSLOPE by drawing a line from 500 107 back to the start point 500 50 Repeat this process to define the regions R2 R3 and R4 NOTE
50. d like to view 18 2 Results and Discussion The sliding mass is displayed in the CAD for the selected calculation method In order to view the sliding mass area more clearly the user may edit the Critical Sliding Mass dialog 1 Select Slips gt Critical Sliding Mass from the menu 2 Move to the Mass Explosion tab and adjust the Explosion Distance slider 1 500 Z m 1 900 4 000 2 000 2 000 1 000 X m The analysis results in a factor of safety of 1 377 along the x axis sliding direction angle for the Bishop s method A screenshot of the two dimensional view along the sliding direction is shown below This view is accessed by clicking on the SD icon which appears below the toolbars on the top left hand side of the screen SOILVISION SYSTEMS LTD 3D Open Pit Analysis 133 of 133
51. dge2D by pressing the New button next to the list of models Note that initially the model is constructed as a 2D model to be later extruded to a 3D model Use the settings below when creating this new model Application SVSLOPE Model Name UserMultiWedge2D System 2D Units Metric Slip Direction Right to Left Click on the World Coordinate System tab Enter the World Coordinates System coordinates shown below into the dialog leave Global Offsets as zero x min 0 x max 120 y min 0 y max 70 7 Click on OK The new model will be automatically added under the recently created UserTutorial project SVSLOPE now opens to show a grid and the Options dialog View Options pops up Click OK to accept the default horizontal and vertical grid spacing of 1 0 SOILVISION SYSTEMS LTD 3D Multi Planar Example 81 of 133 b Enter Geometry Model gt Geometry Model geometry is defined as a set of regions and a series of layers Geometry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models The shapes that define each region will now be created Refer to the two data tables below for the geometry points for each region e Define Region R1 Select Ri from the Region Selector Select Draw gt Geometry gt Polygon Region from the menu The cursor will now be changed to a cross hair Move the cursor near 120 5 in the drawing space
52. dified to include a two way sensitivity analysis b Specify Sensitivity Analysis Model gt Settings The next step is to enable sensitivity analysis This is accomplished through the following steps Select Model gt Settings from the menu Select the Sensitivity Probability tab Select the Sensitivity Analysis option with the following settings Sensitivity Parameters Two Way Sensitivity Critical Slip Surface Location Floating 4 Press OK to close the dialog c Specify Sensitivity Parameters Model gt Materials In a sensitivity analysis model input parameters are specified as varying to a range of properties for a given region in the model Therefore the model is run multiple times in increments as one or more of the values are changed in a logical progression A two way analysis was specified in the previous step In the two way analysis the user is allowed to vary two separate parameters in a logical fashion such that the impact of the two parameters on the factor of safety can be determined The c and phi parameters will be varied for region R1 in this model by the following steps 1 Select Models gt Materials gt Manager from the menu 2 Click the Sensitivity button 3 the Parameters tab click the Add Remove button SOILVISION SYSTEMS UTD 2D Two Way Sensitivity Analysis 77 of 133 4 Expand the R1 region and check the c and phi check boxes to include these material parameters in the sensitivity
53. ds click on the drop down menu at the top of the screen and select the method you would like to view In order to view the sliding mass area more clearly the user may editthe Critical Sliding Mass dialog 1 Select Slips Critical Sliding Mass from the menu 2 Adjust the Explosion Distance slider to see the 3D shape of the critical sliding mass The analysis results in a factor of safety of 1 766 for Spencer s method SOILVISION SYSTEMS LTD 3D Rapid Drawdown Example 117 of 133 The factor of safety is slightly higher than that found in the two dimensional version of this model 2D Rapid Drawdown Example This leads to the conclusion that adding the width dimension to the two dimensional model yields in a slightly more stable slope SOILVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 118 of 133 17 3D Arbitrary Sliding Direction This example is used to illustrate the analysis of a three dimensional slope stability model using the Multi Directional Slip Analysis feature of SVSLOPE i e a slip surface direction that does not follow the x axis A range of slip surface directions is analyzed and the effect on the factor of safety for the slope is noted This example consists of a simple one layer slope The model is analyzed using the Bishop Simplified method and the GLE method The purpose of this example is to analyze the stability of a simple slope along several different slip surface directions and present the result
54. e display color of the material using the Fill Color box on the Material Properties menu Any region that has a material assigned to it will display that material s fill color 5 Move to the Shear Strength tab SOILVISION SYSTEMS LTD 2D Rapid Drawdown Example 110 of 133 6 Enter the Unit Weight value of 140 Ib ft3 7 Enter the Cohesion c value of 0 psf 8 Enter the Friction Angle phi value of 36 degrees 9 Check the Apply Rapid Drawdown checkbox 10 Enter the Cohesion cT value of 2000 psf 11 Enter the Friction Angle phiT of 18 deg 12 Press OK button to close the Materia Properties dialog 13 Repeat these steps to create the compacted Rockfill material using the information provided in the table below Bul Shear Strength Cohesion Friction Unit Weight Cohesion cT Friction Silty Clay Core Mohr Coulomb compacted Rockfill Mohr Coulomb Once all material properties have been entered we must apply the materials to the corresponding regions 1 Open the Regions dialog by selecting Model gt Geometry gt Regions from the menu Assign the compacted Rockfill material to region R1 using the drop down Assign the Silty Clay Core material to region R2 using the drop down Assign the Silty Clay Core material to region R3 using the drop down Assign the compacted Rockfill material to region R4 using the drop down a ee SNO Press the OK button to accept the changes and close the dialog f Specify S
55. e results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 13 2 Results and Discussions After the model has completed solving the user may view the results in the ACUMESH software by pressing the ACUMESH icon on the process toolbar The sliding mass is displayed in the CAD for the selected calculation method To switch between the results of the different calculation methods click on the drop down menu at the top of the screen and SOILVISION SYSTEMS LTD 3D Submergence Example 96 of 133 select the method you would like to view In order to view the sliding mass area more clearly the user may edit the Critical Sliding Mass dialog 1 Select Slips Critical Sliding Mass from the menu 2 Uncheck the Sliding Mass with Explosion checkbox The analysis results in a factor of safety of 1 032 for Bishop s method Calculation Method Bishop s Search Method Grid and Tangent FOS 1 032 Total Mass 2 729E 006 psf Total Volume 2 698E 004 ft 3 Total Activating Moment 2 601E 007 Ibsf Total Resisting Moment 2 685 007 Ibsf Total Activating Force 0 000 000 Ib Total Resisting Force 0 000E 000 Ib Total Active Columns 80 Total Sliding Surface Area 3 68E 03 ft 2 Center Point X 160 110 Y 0 000 Z 195 460 42 222 lt Z 24 KZ The user may a
56. e steps fall under the following general categories Create model Specify analysis settings Enter geometry Specify pore water pressure Apply material properties Specify search method geometry Run model 2070000 Visualize results The details of these outlined steps are given in the following sections SOILVISIOn SYSTEMS LTD 2D Rapid Drawdown Example 107 of 133 NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model Since PROFESSIONAL authorization is required for this tutorial perform the following steps to ensure PROFESSIONAL authorization is activated Plug in the USB security key 2 Goto the File Authorization dialog on the SVOFFICE Manager and Software should display PROFESSIONAL authorization If not it means that the security codes provided by SoilVision Systems at the time of purchase have not yet been entered Please see the Authorization section of the SVOFFICE User s Manual for instructions on entering these codes The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Create a new project called UserTutorial by pressing the New button next to the list of projects 4 Create a new SVSlope model called Rapid Drawdown Example 2D by pressing the SVSlope icon located above the list of models Use the settings below when c
57. e the default values currently present a Create Model STANDARD authorization is required for this tutorial The steps to ensure that STANDARD authorization is activated are described in the Authorization section The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled 3 Select an existing project in the project list box or create a new project called UserTutorial for example by pressing the New button next to the list of projects 4 Create a new model called User General Sliding Surface 3D by pressing the New button next to the list of models Use the settings below when creating this new model Module SVSLOPE Model Name User General Sliding Surface 3D System 3D Units Metric Slip Direction Right to Left 5 Click on the World Coordinate System tab and enter the World Coordinates System coordinates shown below x min 0 x max 700 0 y max 500 z min 0 z max 510 y min SOILVISION SYSTEMS LTD 3D General Sliding Surface 100 of 133 6 Click on OK The new model will be automatically added under the selected project SVSLOPE now opens to show a grid and the Options dialog View gt Options pops up Change the default horizontal and vertical grid spacing to 1 0 m and click OK b Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what type of analysis will be p
58. earch Method Geometry Model gt Slip Surface The Grid and Tangent method of searching for the critical slip surface has already been selected in Step b Now the user must specify the exact geometry of these objects This is accomplished through the following steps GRID 1 Select Model gt Slip Surface gt Grid and Tangent 2 Select the Grid tab 3 Enter the values for the grid as specified at the end of this tutorial 4 Move to entering the tangent values TANGENT 1 Select the Tangent tab 2 Enter the values for the tangent as specified at the end of this tutorial 3 Click OK to close the dialog SOILVISION SYSTEMS LTD 2D Rapid Drawdown Example 111 of 133 The grid and tangent graphics should now be displayed on the CAD window h Run Model Solve gt Analyze The next step is to analyze the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start i Visualize Results Window gt AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 15 2 Results and Discussion After the model has completed solvi
59. efault search boundary coordinates encompassing most of the model 3 Refer to the list of search boundary coordinates provided in the table below and enter the coordinates in the appropriate text boxes 4 Close the dialog by clicking OK The adjusted search boundary graphics are now be displayed on the CAD window vae tei k Apply SVSlope Material Properties Model gt Materials Previously the materials for the model were defined in SVSolid and assigned to regions Now the SVSlope properties need to adjusted for those same materials This section will provide instructions on adjusting the Upper Layer material Repeat the process to adjust the other materials Refer to the beginning of this tutorial for the list of material properties Note that the Bedrock material type does not require entry of any values for SVSlope 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu 2 Select the Upper Layer material and press Properties to to open the Material SOILVISION SYSTEMS UTD Dynamic Programming Example 39 of 133 Properties dialog 3 Onthe Shear Strength tab enter the parameter values provided in the table below Click the OK button to close the Material Properties dialog Repeat these steps to adjust the Weak Layer material Select the Lower Layer and press the Change Type button Click the OK button Click the OK button to close the Material Manager dialog Lp 9o OY ce
60. efault when the combination was performed 1 Select Window SVSlope to switch to the SVSlope environment Select Model Settings from the menu 3 Move to the Slip Surface tab and notice that the following items are selected Slip Direction Left to Right Slip Shape Non Circular Search Method Dynamic Programming 4 Select the Calculation Methods tab to see the method type as shown below is selected SAFE DP 5 Press OK to close the dialog i Specify Dynamic Programming Grid Model gt Slip Surface gt Dynamic Programming gt Grid Points The stress field generated by SVSolid is used as the initial conditions for SVSlope In a SOILVISION SYSTEMS UTD Dynamic Programming Example 38 of 133 combined SVSolid SVSlope model the stress input file is already specified on the Initial Conditions dialog The dynamic programming grid lines will be adjusted for this tutorial Select Model Slip Surface Dynamic Programming Grid Points Enter 31 for the X grid lines Enter 121 for the Y grid lines Press OK to close the dialog QUE M E Specify Search Boundary Coordinates Model gt Search Boundary The Dynamic Programming method of searching for the critical slip surface has already been selected Now the search boundary must be defined This is accomplished through the following steps 1 Select Model gt Slip Surface gt Dynamic Programming gt Search Boundary 2 The Search Boundary dialog will open with the d
61. egion and assign the Upper Layer material to this region Select the Weak Layer region and assign the Weak Layer material to this region Select the Lower Layer region and assign the Lower Layer material to this region Press the OK button to accept the changes and close the dialog e Combine SVSlope with SVSolid File gt Add Coupling Modeling of SVSolid and SVSlope can be done independently or in Combination by specifying SVSolid and SVSlope components in the same model file This methodology makes it easy to use the finite element stress results when using the dynamic programming search method 1 LR ee o Press File Save to save a copy of the steps so far in the current model as the Add Coupling operation creates a new model Select File Add Coupling The Add Coupling dialog will be displayed Check the SVSlope box Note that this process creates a new model file with the combined components in the same Project Click OK to close the dialog f Specify Model Output PLOT MANAGER Model Reporting Plot Manager The plot manager dialog is used to specify information to display in the solver There are many plot types that can be specified to visualize the results of the model The defaults will be generated for this tutorial example model SOILVISION SYSTEMS UTD Dynamic Programming Example 37 of 133 1 Open the Plot Manager dialog by selecting Model Reporting Plot Manager from the menu
62. elected time in the combo box at the top of the workspace All trial slip surfaces may be displayed by following these steps 1 Select Slips gt Slip Surfaces from the menu 2 Click the Show Trial Slip Surfaces check box The analysis results in a factor of safety of 1 605 for the Spencer method at time 0 days and 1 564 at time 2 days as shown in the following screenshots Calculation Method Spencer s Search Method Entry and Exit FOS 1 605 Time 0 day Total Weight 1 599E 004 kN Total Volume 8 062E 002 m 3 Total Activating Moment 6 524 005 kNm Total Resisting Moment 1 047 006 kNm e Total Activating Force 7 226E 4003 kN Total Resisting Force 1 160 004 kN i FOS 0 522 1 043 1 565 2 609 3 13 3 652 4 174 4 696 5 217 5 739 6 2614 Y m SOILVISION SYSTEMS LTD 2D Hong Kong Example 55 of 133 e us Calculation Method Spencer s e e e Search Method Entry and Exit 9 Q FOS 1 564 Time 3 day Total Weight 7 763E 003 kN Total Volume 3 961 002 m 3 FOS 1 564 Total Activating Moment 5 547E 005 kNm e ze Total Resisting Moment 8 672E 005 kNm 4 7 Total Activating Force 3 705 003 kN Total Resisting Force 5 822E 003 kN P FOS e gt 0 0 522 1 043 1 565 2 087 2 609 3 13 3 652 4 174 4 696 5 217 5 739 6 261
63. en the Surface Properties dialog For the Surface Definition Option select Constant from the drop down Click on the Constant tab Enter a Surface Constant of 50 Click OK to close the dialog e Define Surface 2 This surface will be defined by providing a grid of X Y points and corresponding elevations SOILVISION SYSTEMS LTD 3D General Sliding Surface 102 of 133 Select Surface 2 in the Surface Selector Go to Model gt Geometry gt Surface Properties in the menu to open the Surface Properties dialog 9 Select Elevation Data from the Definition Options drop down and click the Paste Data Grid button to define the grid and elevations for Surface 2 10 Copy the X Y Z data grid for Surface 2 found in the csv file 11 Click the Paste Points button 12 Click OK to close the Paste Data Grid dialog 13 Click No when asked to keep the existing grid points 14 Click OK to close the Surface Properties dialog 15 Click OK to close the Surfaces dialog NOTE You can define a custom grid by using the Define Gridlines button on the Surface Properties dialog and entering either a set of regular or irregular gridlines The elevation for each grid point defined by the gridlines must then be entered manually e Define Surface 3 This surface will be defined by providing a grid of X Y points and corresponding elevations To create the surface 16 Go to Model gt Geometry gt Surfaces in the menu to open the Su
64. eometry needs to be updated in the 3D model 8 Select Model Slip Surface Grid and Tangent 9 Enter the following values for the Y coordinate Min Value 0 5 Max Value 0 5 No of Points 1 SOILVISIOn SYSTEMS LTD 3D Rapid Drawdown Example 116 of 133 The slope limits also need to be reset in the new 3D geometry 10 Select Model Slope Limits Min x Oft Max x 1800 ft Min y 500 ft Max y 500 ft 11 Press OK to close the dialog The 3D model is now complete and ready to be analyzed c Run Model Solve Analyze The next step is to analyze the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start d Visualize Results Window AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 16 2 Results and Discussion After the model has completed solving the user may view the results in the ACUMESH software by pressing the ACUMESH icon on the process toolbar The sliding mass is displayed in the CAD for the selected calculation method To switch between the results of the different calculation metho
65. erformed These settings are specified as follows Select Model gt Settings from the menu Select the 3D Slip Surface tab Select the Search Method as Fully Specified General Surface DUE E Select the Calculation Methods tab from the dialog and select the method types as shown below Bishop Simplified Janbu Simplified Spencer Morgenstern Price 5 Select the Convergence tab from the menu Note the number of slices 50 6 Press OK to close the dialog b Enter Geometry Model gt Geometry Model geometry is defined as a set of regions and a series of layers Geometry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models This model will consist of a single region named Slope To add the region follow these steps 1 Open the Regions dialog by selecting Model Geometry Regions from the menu 2 Change the first region name from R1 to Slope To do this highlight the name and type the new text 3 Click OK to close the dialog The shapes that define the region will now be created The geometry points for the Slope region are given in the table below e Define the Slope region 1 Select Slope in the Region Selector found in the toolbar at the top of the workspace 2 Ensure the model view is set to 2D bye selecting View gt Mode gt 2D from the SOILVISION SYSTEMS LTD 3D General Sliding Surface 101 of 133
66. etry has been entered correctly the shape should look like the diagram at the start of this tutorial c Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what model output will be available in ACUMESH These settings are specified as follows 1 2 Select Model gt Settings from the menu Move to the Calculation Methods tab and select the method type as shown below Bishop Simplified GLE Move to the Multi Directional Slip Analysis tab and click the Draw button to draw the primary slip direction on the CAD Move the cursor to the point 26 32 and left click Move the cursor to the point 4 32 and click to complete the slip direction Enter the following Rotation Angles by clicking the Add Regular button Start 10 Increment value 10 Number of Increments 3 End 10 Move to the Convergence tab and enter the values as follows Note that a coarser column grid and reduced number of slices are defined in order to decrease the model solving time These modifications were found to have little effect on the factor of safety compared to the default values Number of rows Y direction 40 Number of slices 40 SOILVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 122 of 133 Tolerance 0 001 Maximum number of iterations 50 8 Press OK to close the dialogs d Specify Search Method Geometry The Grid and Tangent method of searching for the critical slip
67. f safety of 2 186 for the Morgenstern Price method SOILVISION SYSTEMS LTD 2D Rapid Drawdown Example 106 of 133 15 2D Rapid Drawdown Example Water tables placed against earth levees over time will adjust to steady state conditions If the water level against the earth levee is suddenly lowered then pore water pressures in the earth levee may not dissipate fast enough and can lead to a slope failure situation The following example is used to illustrate the use of the total stress method Duncan three stage for rapid drawdown analysis of a two dimensional storage dam model The purpose of this model is to document the correct solution of the rapid drawdown methodology as presented by Duncan et al 1990 This original model can be found under Project Slopes_Group_3 Model RDD_Pumped_Storage_Project_Dam Minimum authorization required PROFESSIONAL Model Description and Geometry The pumped storage project dam has a densely compacted silty clay core The lower portion of the upstream slope is a random zone with the same strength properties as the core The upper portion of the upstream slope and all of the downstream slope is a free draining rockfill The rapid drawdown analysis water level is from 545 feet to 380 feet t 0 200 400 600 800 1 000 1 200 1 400 1 600 1 800 2 000 X ft 15 1 Model Setup In order to set up the model described in the preceding section the following steps will be required Th
68. factor of safety of 1 393 for the Kulhawy method Calculation Method Kulhawy s Search Method Entry and Exit FOS 1 393 Total Mass 3 450E 003 kPa Total Volume 2 261E4002 m 3 Total Activating Moment 1 445 004 kNm 260 Total Resisting Moment 1 601E 004 kNm Upper Layer Cohesion 10 kPa 30 deg Unit Weight 15 kN m 3 Total Activating Force 9 012 002 kN Weak Layer Cohesion 0 kPa 10 deg Unit Weight 18 kN m 3 Total Resisting Force 1 255E 003 kN Lower Layer Materials FOS 1 393 amp 50 0 0 5 0 SOILVISION SYSTEMS LTD 2D Hong Kong Example 45 of 133 8 2D Hong Kong Example This example is used to illustrate the use of a coupled seepage and slope stability model considering the influence of climatic rainfall events on the resulting factor of safety The climatic effects are considered over a period of three days The combination of SVFlux and SVSolid and are used to model a transient change in pore water pressure and the resultant changes in the factor of safety for the slope The model is based on site data taken from a slope in Hong Kong This example consists of a four layer slope with a rainfall event applied to top of the slope The purpose of this model is to illustrate the effect of the infiltration of the rainfall into the soil on the factor of safety for the slope This original model can be found under Project Slopes_Group_3 Model HongKongExamplei_Unsaturated_Rain Mini
69. ff for the Water Surfaces Enter a Ru Coefficient value of 0 4 Click the OK button to close the Mohr Coulomb dialog 10 Repeat these steps to create the Clay Foundation and Disc materials using the 0 0 information provided at the beginning of the tutorial 11 Press the OK button on the Materials Manager dialog to accept the changes and close the dialog Shear Friction Unit Weight Water Ru t kPa Angle kN m Surfaces Coefficient D g e Co UTD SE ClayFoundation Mohr COCA RUM RUE RAN Disc 0 12 on Once all three material properties have been entered we must apply the materials to the corresponding regions 1 Open the Region Properties dialog by selecting Model gt Geometry gt Region Properties from the menu Select the R1 region using the arrows at the top right of the dialog 3 Under the Region Settings group select the Clay Foundation material from the combo box to assign this material to R1 Select the R2 region and assign the Fill material to this region 5 Press the OK button to accept the changes and close the dialog e Extrude 2D Model to 3D File Save As All of the previous steps may be transferred to a 3D version of this model A new model is created with 3D geometry by extruding the 2D cross section from the current model This is accomplished through the following steps NOTE At this point the user may wish to ana
70. ft click the mouse 7 Move the cursor near the point 20 9 Double click on the point to finish the shape A line is now drawn from 0 9 to 20 9 and the shape is automatically finished by SVSLOPE by drawing a line from 20 9 back to the start point 0 9 Repeat this process to define the R2 region according to the data provided in the table below Region R1 SOILVISION SYSTEMS LTD Basic Slope 10 of 133 Region R2 NOTE If an error is made when entering the region geometry the user may recover from the error and start again by one of the following methods a Press the escape esc key b Select a region shape and press the delete key c Use the Undo function on the Edit menu If all model geometry has been entered correctly the shape should look like the diagram at the start of this tutorial d Specify Search Method Geometry The Grid and Tangent method of searching for the critical slip surface has already been selected in the previous step Now the user must draw the graphical representation of the grid and tangent objects on the screen This is accomplished through the following steps GRID 1 Select Model Slip Surface Grid and Tangent 2 Select the Grid tab 3 Enter the values for the grid as specified in the table below the grid values may also be drawn on the CAD window 4 Move to entering the tangent values X increments 2 Y increments 3 TANGENT 1 Select the Tangenttab
71. g g Run Model Solve gt Analyze The next step is to analyze the model 1 Select Solve Analyze from the menu A pop up dialog will appear and the solver will start 2 Press the OK button to close the dialog h Visualize Results Window AcuMesh After the model has been run an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on Yes The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH as appears in the diagrams following To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen To switch SOILVISION SYSTEMS LTD Basic Slope 13 of 133 between the results of the different methods selected click on the drop down menu as shown below at the top of the screen and select the method you would like to view 3 2 Results and Discussions If the model has been appropriately entered into the software the approximate following results should be shown for the Bishop method The user may display results from different methods by clicking the combo box on the display which lists the different analysis methods Bishop Spencer etc It should be noted that it is typically recommended that the search grid of centers be somewhat larger in order to ensure that a critical center is not missed Materials Upper Soil Cohesion 5 kPa Phi 20
72. ged slope The example is modeled using four regions five surfaces and four materials A simple geometry is utilized in this example which is extruded from a 2D cross section This original model can be found under Project Slopes_3D Model Grid_Tangent_Toe_Submergence Minimum authorization required STANDARD Model Description and Geometry A simple 500ft by 200ft area is created A non level plane is added to model the underlying bedrock layer The slope shape lying above bedrock is composed of 3 surfaces The top surface intersects the water table at a height 150 07ft Z ft 13 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the following general categories Create model Specify analysis settings Enter geometry Specify pore water pressure Apply material properties gt Oo no o Specify search method geometry SOILVISION SYSTEMS LTD 3D Submergence Example 89 of 133 g Extrude 2D model to 3D h Run model i Visualize results The details of these outlined steps are given in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model STANDARD authorization is required for this tutorial The steps to ensure that STANDARD authorization is activated are described in the Authorization secti
73. gon Shape dialog Copy the region coordinate data do not copy the X and Y header row for R1 provided at the end of this tutorial and click the Paste button on the New Polygon Shape dialog to paste the region data into the data grid Click OK to close the dialog and create the new region Click the right arrow at the top right of the Region Properties dialog to move to the second region R2 Repeat the steps preformed for R1 to create regions R2 R3 and R4 Click OK on the Region Properties dialog and on the Regions dialog to accept the region changes SOILVISION SYSTEMS LTD 2D Hong Kong Example 48 of 133 If all model geometry has been entered correctly the shape should look like the diagram at the beginning of this tutorial c Specify SVFlux Initial Conditions Model gt Initial Conditions Initial conditions must be specified prior to solving a transient seepage model In this case we will specify a water table as an initial condition Select Model gt Initial Conditions gt Settings from the menu Select the Water Table option and click OK to close the dialog Select Model gt Initial Conditions gt Water Table from the menu U N Either copy and paste the water table data from the tale below into the data grid on the dialog using the Paste Points button or enter the coordinates into the data grid manually 5 Click OK to close the Initial Water Table dialog d Specify SVFlux Boundary Conditions Model
74. has a material assigned to it will display that material s fill color 5 Move to the Shear Strength tab and enter the parameter values given in the table below 6 Click the OK button to close the Shear Material Properties dialog Shear Strength Cohesion Friction Angle Unit Weight Type kPa phi deg kN m Mohr Coulomb 17 66 Once the material property has been entered we must apply the material to the appropriate region Each region will cut through all the layers in a model creating a separate block on each layer Each block can be assigned a material or be left as void In this model there is only one region and one layer The material is assigned to this block as follows 1 Open the Material Layers dialog by selecting Model Materials Material Layers from the menu Select the soil Material for Layer 1 from the drop down Press the OK button to close the dialog f Run Model Solve Analyze The next step is to analyze the model SVSlope will automatically iterate through each of the slip direction angles defined above The current slip direction angle is shown in the Search Method geometry description 1 Select Solve Analyze from the menu A pop up dialog will appear and the solver will start g Visualize Results Window gt AcuMesh After the model has been run an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on Yes The SVSLOPE screen will then change t
75. he list of models Use the settings below when creating this new model Application SVSLOPE Model Name Weak Layer Example Units Metric SOILVISIOn SYSTEMS LTD Weak Layer Example 17 of 133 Slip Direction Right to Left 5 Click on the World Coordinate System tab Enter the World Coordinates System coordinates shown below into the dialog leave Global Offsets as zero x min 15 x max 90 y min 10 y max 60 7 Click on OK The new model will be automatically added under the UserTutorial project SVSLOPE now opens to show a grid and the Options dialog View Options pops up Click OK to accept the default horizontal and vertical grid spacing of 0 5 b Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what model output will be available in ACUMESH These settings will be specified as follows 1 Select Model Settings from the menu 2 Move to the Slip Surface tab and ensure that the following items are selected Slip Direction Right to Left Slip Shape Non Circular Search Method Block 3 Select the Calculation Methods tab from the dialog and select the method types as shown below Spencer GLE For GLE method press the Lambda button Enter a Start Value of 1 25 an Interval of 0 25 and a Number of 11 Press the Generate button eo ur s Press OK to close the dialogs c Enter Geometry Model gt Geometry Model geometry is defined as a se
76. ialog by selecting Model gt Materials gt Manager from the menu Click the New button to create a material Enter Upper Soil for the material name in the dialog that appears and choose SOILVISION SYSTEMS LTD Basic Slope 12 of 133 Mohr Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE When a new material is created you can specify the display color of the material using the Fill Color box on the Material Properties menu Any region that has a material assigned to it will display that material s fill color 5 Move to the Shear Strength tab and enter the parameter values given in the table below 6 Click the OK button to close the Material Properties dialog 7 Repeatthese steps to create the Lower Soil material 8 Press OK to close the Materials Manager Shear Strength Unit Weight Cohesion Friction Angle Type kN m3 kPa phi deg pper Soil Mohr Coulomb 25 ower Soil Mohr Coulomb 10 25 Once all material properties have been entered we must apply the materials to the corresponding regions 1 Open the Region Properties dialog by selecting Model Geometry Region Properties from the menu Select the R1 region and assign the Upper Soil material to this region Select the R2 region and assign the Lower Soil material to this region Press the OK button to accept the changes and close the dialo
77. ialog to accept the changes and close the dialog pe CH deg cn WasteRock 10 GlacialTill Mohr Coulomb x m m RR E Each region will cut through all the layers in a model creating a separate block on each layer Each block can be assigned a material or be left as void A void area is essentially air space In this model all blocks will be assigned a material 1 Select Model Materials Material Layers from the menu to open the SOILVISION SYSTEMS LTD 3D General Sliding Surface 104 of 133 Material Layers dialog 2 Select GlacialTill from the drop down for Layer 2 and WasteRock from the drop down for Layer 1 3 Close the dialog using the OK button f Specify Search Method Geometry Model gt Slip Surface The General Sliding Surface method of searching for the critical slip surface has already been selected in Step b Now the user must enter the data grid for the surface This is accomplished through the following steps Select Model gt Slip Surface gt Fully Specified gt General Surface Click the Paste Data Grid button to define the grid and elevations for the general sliding surface Copy the X Y Z data grid for the surface found in the csv file Click the Paste Points button Click OK to close the Paste Data Grid dialog Click OK to close the General Sliding Surface dialog Qu UT gee a The General Sliding Surface graphics should now be displayed on the CAD window h
78. ided in the table below Click the OK button to close the Mohr Coulomb dialog Repeat these steps to create the Fill Core and RockFill materials Press the OK button on the Materials Manager dialog to accept the changes and close the dialog Strength Friction Angle Unit Weight pe psf deg lb ft Ri 10000 i0 RockFill Mohr Coulomb r mA AEG AR Mohr Coulomb Fil MohrCouomb o 28 706 Once all material properties have been entered we must apply the materials to the corresponding regions 1 Open the Region Properties dialog by selecting Model Geometry Region Properties from the menu 2 Select the R1 region using the arrows at the top right of the dialog Under the Region Settings group select the R1 material from the combo box to assign this material to region R1 Select the R2 region and assign the Fill material to this region Select the R3 region and assign the Core material to this region Select the R4 region and assign the RockFill material to this region pl OY OY cs Press the OK button to accept the changes and close the dialog f Specify Search Method Geometry Model gt Slip Surface The Grid and Tangent method of searching for the critical slip surface has already been selected in Step b Now the user must draw the graphical representation of the grid and tangent objects on the screen This is accomplished through the following steps
79. ing point for the analysis and the relationship between cohesion and friction angle is analyzed This model can be found under Project Slopes_Group_3 Model VW 9 Sensitivity 1 Minimum authorization required to complete this tutorial FULL 11 1 Model Setup In order to set up this tutorial model we will utilize the Basic Slope tutorial model and enable spatial variability in the analysis The steps to create this model fall under the general categories of Create model Specify sensitivity analysis Specify sensitivity parameters Run model 000097 Visualize results The details of these outlined steps are detailed in the following sections NOTE SOILVISION SYSTEMS UTD 2D Two Way Sensitivity Analysis 76 of 133 Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model In order to create the sensitivity model save a copy of the Basic Slope model This is accomplished through the following steps Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Select the UserTutorial project and open the Basic Slope model The may begin with the VW_9 model under the Slopes_Group_2 project if the Basic Slope Example was not created 4 Select File gt Save As from the menu 5 Type the name Sensitivity Example and click OK A new model has been created and loaded into the workspace that will be mo
80. ion for the following line segments that have a X Continue boundary condition until a new boundary condition is specified e Weak Layer O AM Aw 10 11 Select the Weak Layer region in the region selector From the menu select Model gt Boundaries gt Boundary Conditions to open the Boundaries dialog Select the point 0 13 from the list From the X Boundary Condition drop down select a Fixed boundary condition Select the point 0 12 from the list From the X Boundary Condition drop down select a Free boundary condition Select the point 80 12 from the list From the X Boundary Condition drop down select a Fixed boundary condition Select the point 80 13 from the list From the X Boundary Condition drop down select a Free boundary condition Click OK to save the input Boundary Conditions and return to the workspace e Lower Layer 12 13 Select the Lower Layer region in the region selector From the menu select Model gt Boundaries gt Boundary Conditions to open the Boundaries dialog SOILVISION SYSTEMS UTD Dynamic Programming Example 35 of 133 14 Select the point 0 12 from the list 15 From the X Boundary Condition drop down select a Fixed boundary condition 16 Select the point 0 0 from the list 17 From the X Boundary Condition drop down select a Fixed boundary condition 18 From the Y Boundary Condition drop down select a Fixed boundary condition 19 Select the point 80 0 from
81. ion of random or user specified fields of soil parameters such as cohesion or friction angle which vary spatially across any particular region The next step is to generate a random field for all soil parameters for both regions in the model 1 Open the Spatial Variability Parameters dialog by selecting Model gt Materials gt Spatial Variability from the menu Select the random Field Parameters tab and press the Add Remove button 3 Click the Add All button to add all parameters for all regions to the list of random field parameters Click OK to close the dialog 5 The default values for the random field parameters are displayed in the data grid on the Random Field Parameters tab To increase the spatial resolution of the random field parameters enter the following values SOILVISION SYSTEMS LTD 2D Spatial Variability Example 73 of 133 Number of Grid X values for the Upper Soil 50 Number of Grid Y values for the Lower Soil 100 6 Click OK to close the Spatial Variability Parameters dialog A screenshot of the spatial variability contours for the lower region R2 is shown below The user may change the spatial variability contour settings by selecting Model gt Materials gt Spatial Variability Contouring from the menu NOTE The spatial variability contours for both regions are not displayed at the same time because the random field parameters may differ significantly between the materials in which case a single set
82. ist of projects 4 Create a new model called Arbitrary Sliding Direction by pressing the SVSlope button above the list of models Use the settings below when creating this new model Application SVSLOPE Model Name ASD System 3D Units Metric Slip Direction Multi Directional 5 Click on the World Coordinate System tab and enter the World Coordinates System coordinates shown below x min 10 x max 70 y min 10 y max 70 z min 0 z max 14 6 Click on OK SOILVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 120 of 133 The new model will be automatically added under the recently created UserTutorial project or the previously selected project SVSLOPE now opens to show a grid and the Options dialog View gt Options pops up Click OK to accept the default horizontal and vertical grid spacing b Enter Geometry Model gt Geometry Model geometry is defined as a set of regions and a series of layers Geometry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models This model contains a single region Every model has one region defined by default The shape that defines this region will now be created e Define R1 Region 1 Select Model gt Geometry gt Region Properties from the menu Click the New Polygon button Copy and paste the region coordinates from the table below into the New Polygon Shape dialog using
83. itivity analysis can be seen under the menu item Sensitivity The Plots dialog shows how the factor of changes by varying each parameter individually The Two Way Sensitivity Contour dialog shows the factor of safety for each combination of sensitivity parameter values The screenshot below shows that the factor of safety decreases with decreasing c and phi values and increases with increasing c and phi values in this model 2 J s Ea Type Lines and Food S a ele 3 2 gt Contour Legend Contour Color Setting Blue amp Brown v Level Value Color Analysis Method Bishop 30 Parameter X c 132 134 Parameter Y Phi SA 25 136 zal Factor of Safety 1 38 Minimum 1 28 i6 Maximum 152 20 144 146 Contour Intervel 0 02 18 Total Contour Levels 14 15 Phi otal Contour Levels 152 V Show Axis X 15 82 Sa Show Axis Y 10 9 2D Contour 5 3D Surface E Copy To Cipboard SOILVISION SYSTEMS LTD 3D Multi Planar Example 79 of 133 12 3D Multi Planar Example The following example will introduce you to the three dimensional SVSLOPE modeling environment This example is used to investigate the use of a wedge slip surface method in determining the critical slip surface A simple geometry is utilized in this example which is extruded from a 2D cross section This origin
84. l for instructions on entering these codes In order to create the Kulhawy model save a copy of the Dynamic Programming Example model This is accomplished through the following steps 1 Select the UserTutorial project and Open the DP Example model 2 Select File Save As 3 Type the name User Kulhawy and click OK Now a new model has been created and loaded into the workspace that will be modified to include Kulhawy analysis b Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what type of analysis will be performed These settings will be specified as follows 1 Enter SVSlope mode if not already Window SVSlope from the menu Select Model Settings from the menu Select the Slip Surface tab Slip Direction Left to Right Slip Shape Composite Circular Search Method Entry and Exit 4 Selectthe Calculation Methods tab from the dialog and select the method types as shown below Spencer Morgenstern Price GLE Fredlund Kulhawy SOILVISION SYSTEMS LTD Kulhawy Method 43 of 133 5 Press OK to close the dialog c Specify Search Method Geometry The Entry and Exit method of searching for the critical slip surface has already been selected in the previous step Now the user must draw the graphical representation of the entry range and exit range on the screen This is accomplished through the following steps 1 Open the Entry and Exit dialog through the M
85. lso plot the column information for a particular column chosen either in plan view or from a vertical cross section The column information settings are set in the Column Information dialog To access this dialog click the Slips gt Column Information menu item Once the Column Information dialog is closed by clicking OK the user may select a particular column by clicking on it in the CAD The details of the selected column will appear in the CAD SOILVISION SYSTEMS LTD 3D Submergence Example 97 of 133 Calculation Method Bishop s Search Method Grid and Tangent FOS 1 032 Total Mass 2 729E 006 psf Total Volume 2 698E 004 ft 3 Total Activating Moment 2 601E 007 Ibsf Total Resisting Moment 2 685 007 Ibsf Total Activating Force 0 000E 000 Ib Total Resisting Force 0 000E 000 Ib Total Active Columns 80 Total Sliding Surface Area 3 68E 03 ft 2 Center Point X 160 110 Y 0 000 Z 195 460 Selected Column Data Section Y 11 000 ft Calculation Method Bishop s Base Center x 198 000 y 12 245 z 141 502 Material Name RockFill Base Cohesion 0 psf Base Frictional Angle 35 deg Normal Stress 877 9 psf Normal Force 4 008E 04 Ib Shear Resistance Force 1 25E 04 Ib Mobilized Shear Force 1 211E 04 Ib Alpha X 35 08 deg Alpha Y 12 79 deg Garma Z 46 1 deg Uw 487 psf Suction 0 psf m alpha 1 194 Weight 3 921 04 Deg Mid Height 15 117 ft Base Area 45 65 ft 2 Z ft X ft
86. lysis is more than adequate for most situations The steps below are instructions for the Upper Layer material Repeat the process to add the other materials 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu Click the New button to create a material Enter Upper Layer for the material name in the dialog that appears and choose Linear Elastic for the Data type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE When a new material is created you can specify the display color of the material using the Fill Color box on the Material Properties menu Any region that has a material assigned to it will display that material s fill color 5 Onthe Parameters tab enter the SVSolid parameter values provided in the table below SOILVISION SYSTEMS UTD Dynamic Programming Example 36 of 133 19 p n Check the Apply Vertical Body Load box Click the OK button to close the dialog Repeat these steps to create the Weak Layer and Lower Layer materials Press OK to close the Materials Manager dialog waera ype rums ete v Upper Soil 15000 Weak Layer 2000 100000 Once all material properties have been entered we must apply the materials to the corresponding regions 1 Open the Region Properties dialog by selecting Model Geometry Region Properties from the menu Select the Upper Layer r
87. lyze the 2D model to examine the factor of safety This process is described in the steps h and i below First save the current model by clicking File gt Save from the menu 2 Next to begin the extrusion process select File gt Save As from the menu Select the General tab System 3D SOILVISION SYSTEMS LTD 3D Multi Planar Example 84 of 133 New File Name User Multi Planar 3D Select the Spatialtab 5 Enter the following model extrusion parameters Y minimum Om Y maximum 180 m 6 Press OK to close the dialog Press OK to accept the reset of some items Select View gt Mode gt to change the CAD to a 3D view NOTE X and Y coordinates in 2D become X and Z coordinates in 3D space with the model extrusion The 3D geometry is now complete f Specify Analysis Settings Model gt Settings The Analysis Settings provide the information for what type of analysis will be performed These settings will be specified by the following steps Select Model gt Settings from the menu 2 Select the 3D Slip Surface tab Search Method Fully Specified Wedges 3 Select the Calculation Methods tab from the dialog and select the method types as shown below Bishop Simplified Spencer Morgenstern Price GLE Fredlund For GLE method press the Lambda button Enter a Start Value of 0 5 an Interval of 0 25 and a Number of 8 Press the Generate button phy gro Press OK to close the dialogs g Specify Sea
88. menu Select Draw gt Geometry gt Region Polygon from the menu Move the cursor near 0 0 in the drawing space You can view the coordinates of the mouse s current position in the status bar just below the drawing space The SNAP and GRID options in the status bar must both be On OSNAP should be Off To select the point as part of the shape left click on the point Now move the cursor near 680 0 and left click on the point A line is now drawn from 0 0 to 680 0 Repeat the process for the coordinate 680 500 For the final point 0 500 double click on the point to finish the shape The shape is automatically finished by SVFLUX by drawing a line from 0 500 back to the start point 0 0 _ 0 68 o 5 5 NOTE If a mistake was made entering the coordinate points for a shape edit the shape using the Region Properties dialog menu item Model Geometry Region Properties At times it may be tricky to snap to a grid point that is near a line defined for a region Turn the object snap off by clicking on OSNAP in the status bar to alleviate this problem This model consists of three surfaces By default every model initially has two surfaces e Define Surface 1 This surface will be defined by providing a constant elevation 1 2 ee Select Surface 1 in the Surface Selector found at the top of the workspace Select Model gt Geometry gt Surface Properties from the menu to op
89. metry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models This model will be divided into two regions which are named R1 and R2 The shapes that define each material region can be created by the following steps e Define R1 Region Select Draw Geometry Region Polygon from the menu Move the cursor near 0 5 in the drawing space You can view the coordinates of the current position the mouse is at in the status bar just above the command line Continue drawing the following points in order and SOILVISION SYSTEMS LTD Geomembrane Example 26 of 133 0 5 Cale e s 4 Double click on the final point to finish the shape Repeat this process to define the R2 region according to the information provided at the start of this tutorial NOTE If an error is made when entering the region geometry the user may recover from the error and start again by one of the following methods a Press the escape esc key b Select a region shape and press the delete key c Use the Undo function on the Edit menu If all model geometry has been entered correctly the shape should look like the diagram at the beginning of this tutorial d Specify Search Method Geometry The Grid and Tangent method of searching for the critical slip surface has already been selected in the previous step Now the user must draw the graphical represe
90. mum authorization required to complete this tutorial PROFESSIONAL Model Geometry Y m SOILVISION SYSTEMS LTD 2D Hong Kong Example 46 of 133 8 31 Model Setup The following steps will be required to set up the model SVFlux steps Create model Enter geometry Specify SVFlux initial conditions Specify SVFlux boundary conditions Apply SVFlux material properties Combine SVSlope with SVFlux Specify SVFlux model output Run SVFlux model gt a momo SVSlope steps i Specify analysis settings j Specify search method geometry k Specify pore water pressure Apply SVSlope material properties m Run SVSlope model n Visualize results The details of these outlined steps are detailed in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model PROFESSIONAL authorization is required for this tutorial The steps to ensure that PROFESSIONAL authorization is activated are described in the Authorization section This model is first created as a seepage only model in SVFlux Later in the tutorial the slope stability product SVSlope will be coupled with SVFlux To begin this tutorial create a new model in SVFLUX through the following steps 1 Select a Project under which to organize the tutorial 2 Press the SVFlux icon found above the list of models 3 Enter Hong Kong Example
91. n proceed to enter the water table coordinates Select Model Pore Water Pressure Water Table 2 Onthe Points tab enter the X and Y coordinates as provided in the table below by copying the values excluding the header and clicking the Paste Points button on the dialog 3 Press OK to close the dialog d Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the three materials that will be used in the model The bottom region represents the foundation and will be assigned a clay material The top region represents a pile placed above the foundation and will be assigned a fill material An additional material is created to later define a wedge corresponding to a discontinuity This section will provide instructions on creating the Fill material Repeat the process to add the other two materials 1 Open the Materials Manager dialog by selecting Model gt Materials gt Manager from the menu 2 Click the New button to create a material Enter Fill for the material name in the dialog that appears and choose Mohr Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically SOILVISION SYSTEMS LTD 3D Multi Planar Example 83 of 133 5 Move to the Shear Strength tab and enter the parameter values provided in the table below Move to the Water Parameters tab Select O
92. nd Tangent Grid Points Tangent Points X Y X Y Upper Left 18 17 Upper Left 12 4 Lower Left 18 17 Lower Left 12 4 Lower Right 18 17 Lower Right 20 4 Upper Right 20 4 X increments Increments Y increments Loading Line Load 1 Orientation Vertical Start Point End Point Magnitude 10 kN kN X coord 8 m m Y Coord 15 m m Analysis Settings Pore Water Pressure Pore Fluid Unit Weight 9 807 kN m 3 SOILVISION SYSTEMS LTD Geomembrane Example 24 of 133 LE Convergence Options Number of Max no of Slices Tolerance iterations 30 0 0010 50 5 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the general categories of Create model Specify analysis settings Enter geometry Specify search method geometry Specify pore water pressure Specify loading conditions Apply material properties Add Supports Run model 2070000500 j Visualize results The details of these outlined steps are detailed in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Create a new project called UserTutorial by pressing the New button next to the list of projects 4 Create a new model
93. ndows is a registered trademark of Microsoft Corporation SoilVision is a registered trademark of SoilVision Systems Ltd SVFLUX is a trademark of SoilVision Systems Ltd CHEM FLUX is a trademark of SoilVision Sy stems Ltd SVSOLID is a trademark of SoilVision Systems Ltd SVHEAT is a trademark of SoilVision Sy stems Ltd SVSLOPE is a registered trademark of SoilVision Systems Ltd ACUM ESH is a trademark of SoilVision Sy stems Ltd FlexPDEO is a registered trademark of PDE Solutions Inc Copyright O 2013 by SoilVision Systems Ltd Saskatoon Saskatchewan Canada ALL RIGHTS RESERVED Printed in Canada Last Updated May 20 2013 SOILVISION SYSTEMS LTD Table of Contents 3 of Tl introduction coc 5 2 Authorization NNNM 6 3BasiCSloDe ma a aae aa a S NS ua S w 45 7 3 1 Model Setups etienne ERES YER T apasha aa 7 3 2 Results and Discussions uictor fe tiarra irii Eai eto Dae ra de e ve eau o ig ed 13 4 Wak Layer Example irte daas ieoa otos Eadie EE PANES E cee 14 Mod l Set p MT 16 4 2 Results and DisCUusSSTOTIS Henn eR EE METRE REN REL exe a sa 20 5 Geomembrane 5 sae a ee Ee ee eS qa ne veg ee edens Reseau 22 5 1 Model Se tup e aS Saa tar ire pO UY d 24 5 2 Results and DISCUSSIORS u L coves ctr dodi es aaa ee e Pen ke ag iba s 29 6 Dynamic Programming Example
94. ng the user may view the results in the ACUMESH software by pressing the ACUMESH icon on the process toolbar The sliding mass is displayed in the CAD for the selected calculation method To switch between the results of the different calculation methods click on the drop down menu at the top of the screen and select the method you would like to view The analysis results in a factor of safety of 1 504 for Spencer s method The critical slip surface for Spencer s method is shown in the following screenshot FOS 1 000 FOS 1 504 26 Y ft 0 200 400 600 800 1 000 1 200 1 400 1 600 1 600 2 000 X ft SOILVISIOn SYSTEMS LTD 2D Rapid Drawdown Example 112 of 133 15 3 Model Data Region Geometries Region R1 xe 550 380 380 450 450 Region R2 380 250 250 320 380 380 Region R3 x f vi 15 550 1030 550 130 25 770 250 870 380 Region R4 1030 xe 1030 550 1800 250 1300 250 1300 Pore Water Pressure Initial Water Table vi SOILVISION SYSTEMS LTD Grid and Tangent 2D Rapid Drawdown Example Grid Points Tangent Points X Y X Y Upper Left 500 1000 Upper Left 0 380 Lower Left 500 725 Lower Left 0 320 Lower Right 900 725 Lower Right 1000 320 Upper Right 1000 380 X increments 10 Increments 5 Y increments 10 113 of 133 SOILVISIO
95. nt a Create Model FULL authorization is required for this tutorial The steps to ensure that full authorization is activated are described in the Authorization section The following steps are required to create the model Open the SVOFFICE Manager dialog 2 Press the Clear Filter button if enabled Select an existing project or create a new project called UserTutorial by pressing the Create New Project icon found above the list of projects 4 Create a new model called Arbitrary Sliding Direction by pressing the SVSlope button above the list of models Use the settings below when creating this new model Application SVSLOPE Model Name Open Pit System 3D Units Metric Slip Direction Towards negative X 5 Click on the World Coordinate System tab and enter the World Coordinates System coordinates shown below x min 100 x max 5000 y min 900 y max 6000 z min 0 z max 1750 6 Click on OK The new model will be automatically added under the recently created UserTutorial project or the previously selected project SVSLOPE now opens to show a grid and the Options dialog View gt Options pops up Click OK to accept the default horizontal and vertical grid spacing b Enter Geometry Model gt Geometry Model geometry is defined as a series of layers and can be either drawn by the user or defined as a set of coordinates Model Geometry can be imported from either DXF files or from existing models This m
96. ntation of the grid and tangent objects on the screen This is accomplished through the following steps GRID 1 Select Model Slip Surface Grid and Tangent 2 Select the Grid tab 3 Enter the values for the grid as specified at the start of this tutorial the grid values may also be drawn on the CAD window 4 Move to entering the tangent values TANGENT 1 Select the Tangenttab 2 Enter the values for the tangent as specified at the start of this tutorial the grid values may also be drawn on the CAD window 3 Close the dialog The grid and tangent graphics should now be displayed on the CAD window e Specify Pore Water Pressure Model gt Pore Water Pressure There are no initial conditions associated with this tutorial f Specify Loading Conditions SOILVISION SYSTEMS LTD Geomembrane Example 27 of 133 There is a single line load used for the current model The following steps are required in order to apply this line load to the current model 1 pr T Open the Line Load dialog by selecting Model Loading Line Load from the menu Click the New button to create a new line load object Enter a value of 10 kN for the magnitude Enter a value of 8 m for the X coordinate Make sure that the load has a Vertical orientation Click OK to close the dialog g Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the t
97. o reflect the results as visualized by ACUMESH as appears in the diagrams following To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen To switch between the results of the different methods selected click on the drop down menu at the top of the workspace and select the method you would like to view 17 2 Results and Discussion The sliding mass is displayed in the CAD for the selected calculation method In order to view the sliding mass area more clearly the user may edit the Critical Sliding Mass dialog 1 Select Slips Critical Sliding Mass from the menu 2 Move to the Mass Explosion tab and adjust the Explosion Distance slider SOILVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 124 of 133 Z m The analysis results in a factor of safety of 1 404 along the 0 degree sliding direction angle for the Bishop s method A screenshot of the two dimensional view along the sliding direction is shown below This view is accessed by clicking on the SD icon which appears below the toolbars on the top left hand side of the screen The factor of safety versus sliding direction angle is shown below The dialog is available by clicking Slips FOS vs Sliding Direction Angle in the menu As displayed in the screenshot below the angle with the lowest factor of safety is the O degree slip direction angle SOI
98. odel gt Slip Surface gt Entry and Exit menu option 2 Enter the values for the entry range and exit range as specified at the start of this tutorial the range values may also be drawn on the CAD window 3 Click OK to close the dialog d Run SVSolid Model Solve gt Analyze The next step is to analyze the SVSolid component of the model Select Window gt SVSolid from the menu Then Select Solve gt Analyze from the menu This action will write the descriptor file and open the FlexPDE solver for the SVSolid component of the model The solver will automatically begin solving the model After the model has finished solving the results will be displayed in the dialog of thumbnail plots within the FlexPDE solver Right click the mouse and select Maximize to enlarge any of the thumbnail plots These reports are intended to provide the user with low quality graphs which give a rough indication of the results Creating professional quality visualizations of the results can be accomplished with ACUMESH software e Run SVSlope Model Solve gt Analyze The next step is to analyze the SVSlope component of the model 1 Select Window SVSlope from the SVOffice menu 2 Select Solve Analyze from the menu A pop up dialog will appear and the solver will start 3 Press the OK button to close the dialog f Visualize Results Window AcuMesh After the model has been run an ACUMESH notification will appear asking if you want
99. odel contains a single region Every model has one region defined by default The shape that defines this region will now be created e Define R1 Region SOILVISIOn SYSTEMS LTD 3D Open Pit Analysis 128 of 133 Select Model Geometry Region Properties from the menu Click the New Polygon button Copy and paste the region coordinates from the table below into the New Polygon Shape dialog using the Paste Points button do not copy the header row 4 Press OK to close the dialogs Region R1 X m This model consists of two surfaces By default every model initially has two surfaces e Define Surface 1 This surface will be defined by providing a constant elevation 1 Select Model Geometry Surfaces from the menu to open the Surfaces dialog 2 Select the row containing Surface 1 in the surface list and click the Properties button For the Surface Definition Option select Constant from the drop down Click on the Constant tab Enter an Elevation of O Click OK to close the dialog ME e Define Surface 2 This surface will be defined by providing a regular grid of X and Y grid lines and corresponding elevations 1 Select the row containing Surface 2 in the surface list and click the Properties button Select Elevation Data from the Definition Options 3 Click the Paste Data Grid button to set up the grid for the selected surface Copy the X Y Z data grid for Surface 2 found in the XLS file
100. ometry with this precision using the mouse the grid spacing must be set to a maximum of 0 5 1 Under the grid spacing area enter 1 for both the horizontal and vertical spacing 2 Click OK to close the dialog This menu can be reached again by selecting View gt Options from the menu b Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what model output will be available in Acumesh These settings will be specified as follows SOILVISION SYSTEMS LTD 2D Cannon Dam Example 64 of 133 Select Model gt Settings from the menu Move to the Slip Surface tab and ensure that the following items are selected Slope Direction Left to Right Slip Shape Non Circular Search Method Fully Specified Select the Calculation Methods tab from the dialog and select the method types as shown below Spencer GLE Move to the Sensitivity Probability tab and select the Probabilistic Analysis option Enter the following Probabilistic Parameters Sampling Method Monte Carlo Number of Samples 15000 Generator Seed 500 Select a Fixed critical slip surface location Press OK to close the dialog Move to the PWP tab and enter the Pore Water Pressure as is shown at the start of this tutorial and the Ru B_Bar gt None is chosen c Enter Geometry Model gt Geometry Model geometry is defined as a series of layers and can be either drawn by the user or defined as a set of c
101. on The following steps are required to create the model Open the SVOFFICE Manager dialog 2 Press the Clear Search button if enabled Create a new project called UserTutorial by pressing the New button next to the list of projects 4 Create a new model called User Submergence 2D by pressing the New button next to the list of models Note that initially the model is constructed as a 2D model to be later extruded to a 3D model Use the settings below when creating this new model Application SVSLOPE Model Name User Submergence 2D System 2D Units Imperial Slip Direction Right to Left 5 Click on the World Coordinate System tab Enter the World Coordinates System coordinates shown below into the dialog x min 0 x max 300 y min 0 y max 550 7 Click on OK The new model will be automatically added under the recently created UserTutorial project SVSLOPE now opens to show a grid and the Options dialog View Options pops up Change the default horizontal and vertical grid spacing to 1 0 ft and click OK b Specify Analysis Settings Model gt Settings In SVSlope the Analysis Settings provide the information for what type of analysis will be performed These settings will be specified as follows SOILVISION SYSTEMS LTD 3D Submergence Example 90 of 133 Select Model Settings from the menu Select the Slip Surface tab Slip Direction Right to Left Slip Shape Circular Search Method Grid an
102. on the Close button to close the dialog Visualize Results Window gt AcuMesh After the model has been run an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on Yes The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH as appears in the diagrams following To switch back and forth between your original geometry amp ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen To switch between the results of the different methods selected click on the drop down menu as shown below at the top of the screen and select the method you would like to view sp SOILVISION SYSTEMS LTD Geomembrane Example 29 of 133 5 2 Results and Discussions The results of the calculation of the factor of safety and the critical slip surface for the Ordinary Method are shown below At the end of calculation the factor of safety is a result approximately 1 525 The support force distribution in shown along each support in the screenshot below from 0 to 50 Materials Sandy Clay Cohesion 10 kPa Phi 30 deg Unit Weight 18 KN m 3 Silty Clay Cohesion 10 kPa Phi 25 deg Unit Weight 18 kN m 3 The correct results for this example are SVSLOPE GLE 1 646 SOILVISION systems UTD Dynamic Programming Example 30 of 133 6 Dynamic Programming Example This example will introduce the
103. oordinates Model Geometry can also be imported from either DXF files or from existing models This model will be divided into seven regions named R1 to R7 The shapes that define each region are created by the following steps 1 Open the Regions dialog by selecting Model gt Geometry gt Regions from the menu Click the New button 6 times to create the necessary regions Select the region R1 and click the Properties button to open the Region Properties dialog Click the New Polygon button to open the New Polygon Shape dialog Copy the region coordinate data do not copy the X and Y header row for R1 provided at the end of this tutorial and click the Paste button on the New Polygon Shape dialog to paste the region data into the data grid Click OK to close the dialog and create the new region Click the right arrow at the top right of the Region Properties dialog to move to the second region R2 Repeat the steps performed for R1 to create the remaining regions SOILVISION SYSTEMS LTD 2D Cannon Dam Example 65 of 133 9 Click OK on the Region Properties dialog and on the Regions dialog to accept the region changes If all model geometry has been entered correctly the shape should look like the diagram at the beginning of this tutorial d Specify Search Method Geometry Model gt Slip Surface gt Fully Specified gt Linear Segments This model makes use of a fully specified search methodology The linear segment
104. op region by clicking on the region or select R1 from the region selector From the menu select Model gt Boundaries gt Boundary Conditions The Boundary Conditions dialog will open By default the first boundary segment is given a No BC value Select the point 0 90 115 in the boundary conditions list From the Boundary Condition drop down select a Climate boundary condition Select Rainfall as the name of the climate object to apply From the Boundary Condition drop down select a Continue boundary condition for the next 3 points in the boundary conditions list 15 554 90 115 21 047 90 115 and 58 915 72 586 For the point 63 723 64 147 select a No BC boundary condition from the Boundary Condition drop down Click OK to any pop ups that appear Click OK to close the Boundary Conditions dialog Select the second region by clicking on the region or select R2 from the region selector From the menu select Model gt Boundaries gt Boundary Conditions The Boundary Conditions dialog will open By default the first boundary segment is given a No BC value Select the point 63 723 64 127 in the boundary conditions list From the Boundary Condition drop down select a Climate boundary condition Select Rainfall as the name of the climate object to apply From the Boundary Condition drop down select a Continue boundary condition SOILVISION SYSTEMS LTD 2D Hong Kong Example 50 of 133 for the next
105. ovide instructions on creating the soil material 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu Click the New button to create a material 3 Enter soil for the material name in the dialog that appears and choose Mohr SOILVISION SYSTEMS LTD 3D Open Pit Analysis 131 of 133 Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE When a new material is created you can specify the display color of the material using the Fill Color box on the Material Properties menu Any region that has a material assigned to it will display that material s fill color 5 Move to the Shear Strength tab and enter the parameter values given in the table below 6 Click the OK button to close the Shear Material Properties dialog Occo O Material Name Fil Color Shear Strength Parameters Rock 100 37 deg Unit Weight 29 kN m 3 Hard rock L Mohr Coulomb Cohesion 500 kPa Phi 39 deg Unit Weight 35 kN m 3 weak Rock Mohr Coulomb Cohesion 1 kPa Phi 25 deg Unit Weight 25 kN m 3 Prpeties Change Type import GSlimpor Once the material property has been entered we must apply the material to the appropriate region Each region will cut through all the laye
106. r the six materials that will be used in the model This section will provide instructions on creating the first material Repeat the process to add the remaining materials 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu Click the New button to create a material Enter Phase I Fillfor the material name and choose Mohr Coulomb for the material Shear Strength type 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE When a new material is created you can specify the display color of the material using the Fill Color box on the Material Properties menu Any region that has a material assigned to it will display that material s fill color 5 Enter the parameter values for the Phase I Fill material as provided in the table below Click the OK button to close the Shear Strength dialog 7 Repeat these steps for the remaining materials using the values in the following table El S ETE Type Ib ft psf phi deg 150 150 150 150 Because a probability analysis has been specified in the analysis settings the Probabilistic button is visible on the Materials Manager dialog The probability parameters are specified as follows 1 Select Model Materials Manager from the menu if the Materials Manager dialog is not already open 2 Click the Probabilistic button to open the Probabilistic Parameters dialog SOILVISION SYSTEMS LTD 2
107. rch Method Geometry Model gt Slip Surface This model makes use of a fully specified search methodology The wedge shape is used as the slip surface geometry Four wedges will be specified through the following steps 1 Open the Wedges Sliding Surface dialog through the Model gt Slip Surface gt Fully Specified Wedges menu option SOILVISION SYSTEMS LTD 3D Multi Planar Example 85 of 133 2 Enter the data for the 4 wedges as specified below by copying the data do not include the header row and clicking the Paste Points button on the dialog 3 Click OK to close the dialog _ Dip Discontinuity Dip deg 1 U ee Disc ee oe ee 35 o 5 45 8 Noe h Run Model Solve gt Analyze The next step is to analyze the model 4 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start i Visualize Results Window gt AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 12 2 Results and Discussions After the model has completed solving the user may view the results in the ACUMESH
108. rchase have not yet been entered Please see the Authorization section of the SVOFFICE User s Manual for instructions on entering these codes SOILVISION SYSTEMS LTD Basic Slope 7 of 133 3 Basic Slope The following example will introduce some of the features included in SVSLOPE and will set up a model using limited equilibrium method of slices and the Grid and Radius search method for circular slip surfaces The purpose of this model is to determine the factor of safety of a simple model The model dimensions and material properties are in the next section This example consists of a simple slope with two layers and a water table The problem is analyzed using the Bishop Simplified method as well as the Morgenstern Price method The purpose of this example is to illustrate the calculation of the factor of safety for a simple slope example This original model can be found under Project Slopes_Group_2 Model VW_9 Minimum authorization required to complete this tutorial STUDENT Model Description and Geometry 3 1 Model Setup In order to set up the model described in the preceding section the following steps will be required The steps fall under the general categories of Create model Specify analysis settings Enter geometry Specify search method geometry Specify pore water pressure SOILVISION SYSTEMS LTD Basic Slope 8 of 133 f Apply material properties g Run model h Visualize results The
109. re selected Slip Direction Left to Right Slip Shape Circular Search Method Grid and Tangent SOILVISION SYSTEMS LTD Basic Slope 9 of 133 3 Select the Calculation Methods tab from the dialog and select the method types as shown below Bishop Simplified Spencer M P GLE 4 Press OK to close the dialog c Enter Geometry Model gt Geometry Model geometry is defined as a set of regions and a series of layers Geometry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models This model will be divided into two regions which are named R1 and R2 Each region will have one of the materials specified as its material properties The shapes that define each material region will now be created Note that when drawing a geometric shape information will be added to the region that is current in the Region Selector The Region Selector is at the top of the workspace e Define R1 Region Select Draw Geometry Region Polygon from the menu 2 The cursor will now be changed to a cross hair Move the cursor near 0 9 in the drawing space You can view the coordinates of the current position of the mouse in the status bar 4 To select the point as part of the shape left click on the point 5 Now move the cursor near 0 14 and left click the mouse A line is now drawn from 0 9 to 0 14 6 Now move the cursor near 10 14 and le
110. reating this new model Application SVSlope Model Name Rapid Drawdown Example 2D System 2D Units Imperial Slip Direction Right to Left 5 Click on the World Coordinate System tab and enter the World Coordinates System coordinates shown below x min 0 x max 2000 y min 0 y max 1000 6 Click on OK The new model will be automatically added under the recently created UserTutorial project SVSLOPE now opens to show a grid and the Options dialog View Options pops up Change the default horizontal and vertical grid spacing to 5 ft and click OK b Specify Analysis Settings Model Settings In SVSlope the analysis settings provide the information for what type of analysis will be performed These settings will be specified as follows SOILVISION SYSTEMS LTD 2D Rapid Drawdown Example 108 of 133 4 5 6 Select Model Settings from the menu Select the Slip Surface tab Slip Direction Right to Left Slip Shape Circular Search Method Grid and Tangent Select the Calculation Methods tab from the dialog and select the method types as shown below Bishop Simplified Spencer Corps of Engineers 2 Morgenstern Price GLE Fredlund Sarma Select the Applications tab from the dialog Check the Apply Rapid Drawdown Analysis check box Press OK to close the dialog c Enter Geometry Model gt Geometry Model geometry is defined as a set of regions Geometry can be either drawn by the user or defined as
111. rfaces dialog 17 Click the New button to create a new surface 18 Click OK on the Insert Surfaces dialog to use the default surface settings 19 Click OK to close the Surfaces dialog 20 Repeat the same steps used to define Surface 2 for Surface 3 using the X Y Z data grid found in the csv file d Specify Pore Water Pressure Model gt Water Pressure Pore water pressure is often defined in terms of a water surface and that is the case in this example In order to specify that a water surface will be entered the user must perform the following steps 1 Select Model gt Pore Water Pressure gt Settings 2 Select Water Surfaces as the Pore Water Pressure Method 3 Press OK to close the dialog The user must then proceed to enter the water surface coordinates The water surface is defined in the same way as Surface 2 and Surface 3 were defined in the geometry section above 4 Select Model Pore Water Pressure Water Surface 5 Select Elevation Data from the Definition Options drop down and on the Elevations tab click the Paste Data Grid button to define the grid and SOILVISION SYSTEMS LTD 3D General Sliding Surface 103 of 133 elevations for the water surface Copy the X Y Z data grid for the water surface found in the csv file Click the Paste Points button Click OK to close the Paste Data Grid dialog Click No when asked to keep the existing grid points Dee See 10 On the Apply tab
112. rs in a model creating a separate block on each layer Each block can be assigned a material or be left as void In this model there is only one region and one layer The material is assigned to this block as follows 1 Open the Material Layers dialog by selecting Model gt Materials gt Material Layers from the menu 2 Select the soil Material for Layer 1 from the drop down Press the OK button to close the dialog f Run Model Solve Analyze The next step is to analyze the model SVSlope will automatically iterate through each of the slip direction angles defined above The current slip direction angle is shown in the Search Method geometry description SOILVISION SYSTEMS LTD 3D Open Pit Analysis 132 of 133 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start g Visualize Results Window gt AcuMesh After the model has been run an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on Yes The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH as appears in the diagrams following To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen To switch between the results of the different methods selected click on the drop down menu at the top of the workspace and select the method you woul
113. s dialog Repeat the above steps to create the remaining three materials Press OK on the Materials Manager dialog to close this dialog Saturated VWC SWCC Method Frediund amp Fredlund amp Fredlund amp amp Xing Xing Fredlund amp Xing af kPa 757 430 Fredlund amp Xing nf oss es o Fredlund amp Xing mf Fredlund amp Xing hr kPa 219 46 11 26 3000 3000 ksat m day Unsaturated Hydraulic Modified Modified Modifi ed None Conductivity Camp Camp Method bell bell Modified Campbell p o5 5 5 NA k minimum m day 8 64E 06 8 64E 06 8 64E 06 8 64E 06 SOILVISION SYSTEMS LTD 2D Hong Kong Example 51 of 133 e Assign materials to regions The next step is to define which materials are applied to which regions 1 Select Model gt Geometry gt Regions 2 For each region the appropriate material type must be selected from the combo box The material assignments should be as follows R1 Colluvium R2 Weathered Granite R3 LessWeatheredGranite R4 Bedrock 3 Click OK once the material assignments have been made f Combine SVSlope with SVFlux File gt Add Coupling Modeling of SVFlux and SVSlope can be done independently or in Combination by specifying SVFlux and SVSlope components in the same model file This methodology makes it easy to use the finite element pore water pressure results in the slope stability software The steps to combine
114. s fall under the general categories of Create model Specify analysis settings Enter geometry Specify search method geometry 0000 Specify Pore Water Pressure SOILVISION SYSTEMS LTD 2D Cannon Dam Example 63 of 133 f Apply material properties g Run model h Visualize results The details of these outlined steps are detailed in the following sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Create a new project called UserTutorial by pressing the Create New Project button above the list of projects 4 Create a new model called Probabilistic Example by pressing the SVSLOPE icon button above the list of models Use the settings below when creating this new model Module SVSLOPE System 2D Units Imperial Slope Direction Left to Right Click on the World Coordinate System tab 6 Enter the World Coordinates System coordinates shown below into the dialog x min 400 x max 600 y min 350 y max 750 7 Click on OK SVSLOPE now opens to show a grid and the Options menu pops up The workspace grid spacing needs to be set to aid in defining region shapes The filter portion of the model has coordinates of a precision of 0 5m In order to effectively draw ge
115. s shape is used as the slip surface geometry The geometry is specified through the following steps 1 Select Model gt Slip Surface gt Fully Specified gt Linear Segments from the menu 2 Copy the linear segment data from the table provided below do not copy the header row and enter the data into the dialog using the Paste button 3 Click OK to close the dialog e Specify Pore Water Pressure Model gt Pore Water Pressure A water table or a piezometric line must be specified as an initial condition for this model In this model a piezometric line will be used In order to specify that a piezometric line will be entered the user needs to following these steps Select Model Pore Water Pressure Settings Select Water Surfaces as the Pore Water Pressure Method Press OK to close the dialog The user must then proceed to enter the piezometric line coordinates Select Model Pore Water Pressure Piezometric Line 2 Under the Points tab click on the New Line button and enter the X and Y coordinates as provided in the table below for the piezometric line 3 Under the Apply to Regions section ensure the check boxes for all regions are checked by clicking the Select All button 4 Press OK to close the dialog SOILVISION SYSTEMS LTD 2D Cannon Dam Example 66 of 133 f Apply Material Properties Model gt Materials gt Manager The next step in defining the model is to enter the material properties fo
116. sections NOTE Any values on the dialogs that are not specifically mentioned in the steps below are assumed to be the default values currently present a Create Model PROFESSIONAL authorization is required for this tutorial The steps to ensure that PROFESSIONAL authorization is activated are described in the Authorization section The following steps are required to create the model Open the SVOFFICE Manager dialog Press the Clear Search button if enabled Create a new project called UserTutorial by pressing the New button next to the list of projects 4 Create a new model called DP Example by pressing the New button next to the list of models Use the settings below when creating this new model Application SVSOLID Model Name DP Example System 2D Units Metric 5 Click on the World Coordinate System tab 6 Enter the World Coordinates System coordinates shown below into the dialog leave Global Offsets as zero x min 5 x max 90 ymin 5 y max 30 7 Click OK to close the dialog The new model will be automatically added under the recently created UserTutorial project SVSOLID now opens to show a grid and the Options dialog View Options pops up Change the default horizontal and vertical grid spacing to 1 0 m and click OK SOILVISION SYSTEMS UTD Dynamic Programming Example 32 of 133 b Enter Geometry Model gt Geometry Model geometry is defined as a set of regions Geometry can be either dr
117. stic model and the published values is less around 1 for both the Spencer and GLE calculation methods The probability of failure is less than 1 for both SVSlope methods and the published value Factor of Safety Wolff and Harr svstore __ Difference in FOS Spencer 2 36 2 383 383 1 06 eee gt SOILVISION SYSTEMS LTD 2D Cannon Dam Example 69 of 133 9 3 Model Data Region Geometries Region R1 Region R3 X ft SOILVISION SYSTEMS LTD 2D Cannon Dam Example 70 of 133 497 42 514 226 411 261 538 826 140 1 547 234 Region R4 Region R5 X ft Y ft Return to Enter Geometry step SOILVISION SYSTEMS LTD 2D Spatial Variability Example 71 of 133 10 2D Spatial Variability Example This tutorial illustrates a re analysis of a classic model analyzed using spatial variability The Basic Slope model is now re analyzed and the differences to the classic solution are noted as parameters for the spatial variation of soil properties are assumed This original model can be found under Project Slopes_Group_2 Model VW_9 Minimum authorization required to complete this tutorial FULL 10 1 Model Setup In order to set up this tutorial model we will utilize the Basic Slope tutorial model and enable spatial variability in the analysis The steps to create this model fall under the general categories of Create model Specify spatial variability of material properties
118. surface has already been selected in a previous step Now the user must specify the geometry for each of these objects This is accomplished through the following steps GRID 1 Select Model gt Slip Surface gt Grid and Tangent 2 Select the Grid and Tangenttab 3 Enter the values provided in the table below 4 Press OK to close the dialog Tin Vatoe Max value imis Tangent planes 463 546 C asea nao os 6 NOTE The X and Y coordinates are rotated coordinates i e they are relative to the slip direction The grid and tangent graphics should now be displayed on the CAD window e Apply Material Properties Model gt Materials The next step in defining the model is to enter the material property for the material that will be used in the model This section will provide instructions on creating the soil material 1 Open the Materials dialog by selecting Model Materials Manager from the menu Click the New button to create a material Enter soil for the material name in the dialog that appears and choose Mohr Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE SOILVISION SYSTEMS LTD 3D Arbitrary Sliding Direction 123 of 133 When a new material is created you can specify the display color of the material using the Fill Color box on the Material Properties menu Any region that
119. t of regions Geometry can be either drawn by the user or defined as a set of coordinates Model Geometry can also be imported from either DXF files or from existing models The shapes that define each material region will now be created e Define R1 Region 1 Ensure the R1 region is current in the region selector The region selector appears underneath the menus at the top of the screen 2 Select Draw Geometry Polygon Region from the menu SOILVISIOn SYSTEMS LTD Weak Layer Example 18 of 133 3 The cursor will now be changed to cross hairs 4 Move the cursor near 20 27 75 in the drawing space You can view the coordinates of the current position the mouse is at in the status bar just above the command line 5 When the cursor is near the point left click This will cause the cursor to snap to the point The SNAP and GRID options in the status bar must both be on 6 Now move the cursor near 20 18 88 and left click A line is now drawn from 20 27 75 to 20 18 88 7 In the same manner then enter the following points 84 36 8 84 40 67 5 40 43 27 75 8 Move the cursor near the point 43 27 75 and double click on the point to finish the shape Repeat this process to define the R2 and R3 regions according to the information provided at the start of this tutorial NOTE If an error is made when entering the region geometry the user may recover from the error and start again by one of the following methods
120. tering the region geometry the user may recover from the error and start again by one of the following methods a Press the escape esc key b Select a region shape and press the delete key c Use the Undo function on the Edit menu If all model geometry has been entered correctly the shape should look like the diagram at the start of this tutorial e Specify Region Names Select Model gt Geometry gt Regions from the menu The Regions dialog will be opened Select the name R1 in the list Enter the name Upper Layer Select the name R2 Enter the name Weak Layer Select the name R3 Enter the name Lower Layer Press OK to close the dialog c Specify Boundary Conditions Model gt Boundaries Boundary conditions must be applied to region points Once a boundary condition is applied to a boundary point the starting point is defined for that particular boundary condition The boundary condition will then extend over subsequent line segments around the edge of the region in the direction in which the region shape was originally entered Boundary conditions remain in effect around a shape until re defined The user may not define two different boundary conditions over the same line segment More information on boundary conditions can be found in Menu System Model Menu Boundary Conditions 2D Boundary Conditions in your User s Manual Now that all of the regions and the model geometry
121. the Slips Column Information menu item Once the Column Information dialog is closed by clicking OK the user may select a particular column by clicking on it in the CAD The details of the selected column will appear in the CAD SOILVISION SYSTEMS LTD 3D Multi Planar Example 87 of 133 190 180 Calculation Method Spencer s Search Method Fully Specified Wedges FOS 1 172 Total Mass 3 577E 006 kPa Total Volume 1 987E 005 m 3 Total Activating Moment 1 213E 008 kNm Total Resisting Moment 1 421 008 kNm Total Activating Force 9 818E 005 kN Total Resisting Force 1 151E 006 kN Total Active Columns 5412 Total Sliding Surface Area 1 4E 04 m 2 Center Point X 27 892 Y 90 000 2 133 562 160 140 120 Selected Column Data Calculation Method Spencer s Base Center x 52 121 y 125 455 z 16 400 Material Name disc Base Cohesion 0 kPa Base Frictional Angle 12 deg Normal Stress 359 1 kPa Normal Force 797 3 kN Shear Resistance Force 169 5 kN Mobilized Shear Force 144 6 kN Alpha X 7 deg Alpha Y 0 deg Garma Z 56 87 deg Uw 0 kPa Suction 11 65 kPa m alpha 1 015 Weight 802 4 Deg Mid Height 20 227 m Base Area 2 22 m 2 100 SOILVISION SYSTEMS LTD 3D Submergence Example 88 of 133 13 Submergence Example The following example is used to illustrate the use of a grid and tangent search method in determining the critical slip surface of a submer
122. the list 20 From the X Boundary Condition drop down select a Fixed boundary condition 21 From the Y Boundary Condition drop down select a Free boundary condition 22 Select the point 80 12 from the list 23 From the X Boundary Condition drop down select a Free boundary condition 24 From the Y Boundary Condition drop down select a Free boundary condition 25 Click OK to save the input Boundary Conditions and return to the workspace d Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the materials that will be used in the model The material names in this tutorial match the region names This section will provide instructions on creating the materials and entering the SVSolid material parameters The SVSlope material parameter specification will be described below It should be noted that the Mohr Coulomb soil properties are required for the SVSlope portion of the analysis only The SVSolid portion of the analysis is a linear elastic analysis and the Mohr Coulomb properties are not required for the stress portion of the analysis Current research into the Dynamic Programming method has shown that the difference in the computed FOS between whether an elasto plastic strength model is used or a linear elastic strength model is used in the base finite element analysis makes for negligible difference if the FOS is greater than 1 0 Therefore a linear elastic stress ana
123. to view the results in ACUMESH Click the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH as appears in the diagrams following To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 7 2 Results and Discussions If the model has been appropriately entered into the software the following results should be shown The results will contain all trial slip surfaces as well as the most critical slip surface results In order to identify the most critical slip surface the user may perform the following steps 1 Select Slip Surfaces from the menu item Slips and 2 Click the Show Trial Slip Surfaces button this will cause all the trial slip surfaces SOILVISION SYSTEMS LTD Kulhawy Method 44 of 133 to not be displayed The user may also plot the slices used in the analysis of the critical slip surfaces through the slips show slices menu option The information on any particular slice may be displayed through the slips slice information dialog A slice information dialog will appear and the user may click on a new particular slice on the slope to display the details of that slice The user may display results from different methods by clicking the combo box on the display which lists the different analysis methods Spencer Morgentern Price etc The analysis results in a
124. to model the rapid drawdown of the water table To enter the two water tables into SVSLOPE perform the following steps 1 Select Model gt Pore Water Pressure gt Settings 2 Select Water Surfaces as the Pore Water Pressure Method 3 Press OK to close the dialog The user must then proceed to enter the initial water table coordinates Select Model gt Pore Water Pressure gt Water Table 2 Under the Points tab enter the X and Y coordinates as provided for the initial water table at end of this tutorial 3 Press OK to close the dialog The user must then proceed to enter the final water table coordinates 4 Select Model Final Conditions Water Table 5 Under the Points tab enter the X and Y coordinates as provided for the final water table at end of this tutorial 6 Press OK to close the dialog e Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the two materials that will be used in the model 1 Open the Materials Manager dialog by selecting Model gt Materials gt Manager from the menu Click the New button to create a material 3 Enter Silty Clay Core for the material name in the dialog that appears and choose Mohr Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE When a new material is created you can specify th
125. ton on the dialog 3 Press OK to close the dialog 150012 After water table points are entered or a water table is drawn the points will be automatically adjusted based on intersections of the water table line with regions Corresponding points will be added to both the water table line and the regions e Apply Material Properties Model gt Materials The next step in defining the model is to enter the material properties for the four materials that will be used in the model The Extents region cuts through all the surfaces in a model creating a separate block on each layer Each block can be assigned a material or be left as void A void area is essentially air space In this model all blocks will be assigned a material There are five surfaces resulting in four layers Each layer will contain a different material This section will provide instructions on creating the R1 material Repeat the process to add the other three materials 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu 2 Click the New button to create a material Enter R1 for the material name in the dialog that appears and choose Mohr SOILVISION SYSTEMS LTD 3D Submergence Example 93 of 133 Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically 5 Onthe Shear Strength tab and enter the parameter values prov
126. toolbars on the top left hand side of the screen To switch between the results of the different methods selected click on the drop down menu as shown below at the top of the screen and select the method you would like to view a 4 2 Results and Discussions After the model is completed the user may view the results in the ACUMESH software by pressing the open ACUMESH icon on the process toolbar The results will contain all trial slip surfaces as well as the most critical slip surface results In order to identify the most critical slip surface the user may perform the following steps 1 Select Slip Surfaces from the menu item Slips and 2 Click the Show Trial Slip Surfaces button this will cause all the trial slip surfaces to not be displayed The user may also plot the slices used in the analysis of the critical slip surfaces through the slips show slices menu option The information on any particular slice may be displayed through the slips slice information dialog A slice information dialog will appear and the user may click on a new particular slice on the slope to display the details of that slice The analysis results in a factor of safety of 0 741 for the Spencer method shown below and 0 708 for the GLE method SOILVISION SYSTEMS LTD Weak Layer Example 21 of 133 Materials Soll 1 Cohesion 28 5 kPa Phi 20 deg Unit Weight 18 84 KN m 3 Soll2 Cohesion 0 kPa Phi 10 deg Unit Weight 18 84 k
127. trength Cohesion Friction Angle Friction Angle Unit Weight Type Les eet ee des mu rum Unsaturated Phi b 196 6 Unsaturated Phi b Eom s LessWeatheredGranitel Unsaturated Phi b Mohr Coulomb 50 40 NA 25 The material properties have already been assigned to regions in the SVFlux component of this model so they do not need to be re assigned in SVSlope m Run SVSlope Model Solve gt Analyze The next step is to analyze the SVSlope component of the model 1 Select Solve gt Analyze from the menu A pop up dialog will appear and the solver will start SOILVISION SYSTEMS LTD 2D Hong Kong Example 54 of 133 n Visualize Results Window gt AcuMesh After the model has completed solving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen 8 2 Results and Discussion The results for the calculation of the factor of safety may be seen below The user may display results from different calculation methods by using the combo box on the display which lists the different analysis methods Spencer M P etc By default the critical slip surface is displayed for the s
128. ving an ACUMESH notification will appear asking if you want to view the results in ACUMESH Click on the Acumesh button The SVSLOPE screen will then change to reflect the results as visualized by ACUMESH To switch back and forth between your original geometry and ACUMESH click on the SVSLOPE or ACUMESH icon which appears below the toolbars on the top left hand side of the screen SOILVISION SYSTEMS LTD 2D Cannon Dam Example 68 of 133 9 2 Results and Discussion The critical slip surface for this numerical model is displayed when the model is first opened in ACUMESH by the user The summarized probabilistic model results are presented in Probability gt Monte Carlo menu option This dialog displays the normal distribution of the factor of safety On the Values tab the reliability index the probability of failure and a normal distribution of the probability of failure are given FOS 2 385 Calculation Method Spencer s on Search Method Fully Specified C FOS 2 385 Total Weight 5 149E 006 Ib Total Volume 3 468E 004 fr Total Activating Moment 9226 008 st Total Resisting Moment 1 180E 009 Ibsf Total Activating Force 7 479 0051 Total Resisting Force 2 250E 006 Ib 400 300 200 100 0 100 200 300 400 500 600 X ft The probabilistic analysis results from SVSLOPE are compared to the results published in the paper by Wolff and Harr in the table below The difference in factor of safety between the SVLOPE probabili
129. wo materials that will be used in the model R1 region will have the Sandy Clay applied to it and R2 will have the Silty Clay applied to it This section will provide instructions on creating the Sandy Clay Repeat the process to add the second material 1 Open the Materials dialog by selecting Model gt Materials gt Manager from the menu Click the New button to create a material Enter Sandy Clay for the material name in the dialog that appears and choose Mohr Coulomb for the Shear Strength type of this material 4 Press OK to close the dialog The Material Properties dialog will open automatically NOTE When a new material is created you can specify the display color of the material using the Fill Color box on the Material Properties menu Any region that has a material assigned to it will display that material s fill color 10 00 Sl gy n Move to the Shear Strength tab Enter the Unit Weight value of 18 kN m 3 Enter the Cohesion c value of 10 kPa Enter the Friction Angle phi value of 30 degrees Click the OK button to close the Shear Strength dialog and Repeat these steps to create the Silty Clay material using the information provided at the beginning of the tutorial Once all material properties have been entered we must apply the materials to the corresponding regions 1 Open the Region Properties dialog by selecting Model Geometry Regions from the menu Select the R1 region and assign the
130. xample 115 of 133 Open the SVOFFICE Manager dialog 2 Select the project where the 2D Rapid Drawdown Example tutorial model was created 3 Locate the the 2D Rapid Drawdown Example tutorial model in the list of models and open the model NOTE The RDD Pumped Storage Project Dam model located in the Slopes Group 3 project may be utilized as the two dimensional model referenced above if the model in the 2D Rapid Drawdown Example tutorial has not been created However the Grid and Tangent slip search method will need to be specified The steps to specify this search method are described in the Model Setup section of the 2D Rapid Drawdown Example b Extrude 2D Model to 3D File Save As A new model is created with 3D geometry by extruding the 2D cross section from the current model This is accomplished through the following steps First save the current model by clicking File Save from the menu 2 Next to begin the extrusion process select File Save As from the menu Select the Generaltab System 3D New File Name Rapid Drawdown Example 3D 3 Selectthe Spatialtab Enter the following model extrusion parameters Y minimum 500 ft Y maximum 500 ft Press OK to close the dialog Press OK to accept the reset of some items Select View Mode 3Dto change the CAD to a 3D view NOTE X and Y coordinates in 2D become X and Z coordinates in 3D space with the model extrusion The Y coordinates for the search method g

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