岩質の程度と弾性波伝播速度
Contents
1.2. Wit ARN D aAA U FR 22109
3. MEKKE _ 1 r
4. 1 m No 3 1 m 9 10
5. 1 1918 BEARER 1930 1931 1932 EMR 1
6. 3 N 1 81 3 1 No 1 Ges
7. N 2 DX 500 Z AVA
8. 1 M 1 3 1 4 C 2 3
9. 1966 11 me A A B ie oe ee 0 35 0 48 WAVEHBEE ASEH T 4 Bae Le 1600 kg cm 0 16 4 8 vs 4 8 5 2 A B A 1400 2200 B 1200 1800 0 a yy gt 0 14 0 20 w EE ar B 4 0 4 4 ieee ee A 1200 2000 B 1000 1600 C 800 1300 3 8 0 16 0 23 v Por ae a a eat
10. MAR 9 75db 6 000 2 3
11. lt 2 FEHR OAR CVD BA CHL Sate
12. 5 4 2 1 2 3 BR BA 1 2
13. 80 211 Y 2 6
14. 0 dD 1 2 3
15. 9 2 5cm 2 5cm 2kg 1cm LVEF 1cm EBM 3 5 3 fl
16. F WAC B
17. 5 1 J ff ff 7 z lesan E See RRI lt gt km sec km sec km sec m m km sec km sec JE fa ve 1 8 3 710 6 3 7 48 10 4 2 0 2 4 5 6 40 3 0 4 05 5 6 5 G6 10 G6 8 G6 10 1 0 1 1 1 0 1 1 0 5 0 7 Ae fe a es CC 48 63 KG2 8 1 4 10 3 5 sk 6 0 h yk 1 8 3 60 5 4 3 0 2 3 0 x 283 a A R OE a G4 10 G4 10 33 65 G4 10 8 3 7 5 20 2 4 3 3 5 0 wml 3 2 0 7 3 2 1 0 1 5 i AWER G8 CG2 8 94758 Ga ay 4 7 ee E 6 5 2 1 2 7 1 7 2 7 0 4 2 1 7 ML eG G8 10G8 10 55 67 ceo 2 3 6 12 5 sls 5 4 PORA 3 8 4 6l1 4 2 6 o en 1 6 4 6 z _ G8 Gema 9 60 Gima 2 3 3 7 2 0 0
18. 1 95 46 75 60 15 43 30 BRAVA SHARE 1 N 1950 P 196G 4 5
19. a 211 WK
20. 1 12 24 2 3 Fy RoT W BE
21. 0 6km sec DIREC 2 3 6 P WAT 3 3 211 7 P 2 m
22. 3 1 2 a a BRO LID
23. 2 6 FR 20 30m m 3 1965 5 3
24. PH PP 8 10m 80m PH PP HRC 30m 50m TH No 3 4 6 W
25. Ba _ 1 2 BE
26. PU1 C R 60db 10 20db 10 C 80db 10 10 999 9msec 0 1msec 0 1msec CHS
27. S BRE N M D 2 4 2 78 211 5 3kg OE
28. P PP 1 4 5 0 5 1 5 9 1 5 2 5 1 98 PP PH So 9 10 5
29. PD WEER CRD SHSM BH LRRD ROMAN Ho Lik gt ELT
30. PU BR 13 0 76km sec 3 3 4 No 2 4 1 PUTT 2 75m PUI REY 7 8 1 4km sec 5kg 2kg 1 8
31. 3 0 4 0km sec 5 5 6 5km sec 6 m 1 43 lt 2 0km sec 4 mT 2 0 3 67km sec 48 CHS 3 2 E CI GREED 1 30cm 2 4 3 3km sec I 85 5 0km sec 30m 0 58 1 32km sec 3 m WHTC 0 91 2 50km sec 3 48km sec CI 5 m 0 76km sec
32. 2 4 3 3km sec 5 0km sec 5 m 2 5km sec 3 m 1 82 lt 2 10km sec 41 53 CHS No 1 O BRAS BE 2 0 4 5km sec SAR 3 5 6 0km sec 5 m 2 67km sec 3 m 1 15 3 50km sec 60 63 CHS O
33. Lic RAHA 0 WERE LOR TVS 2 0 4 0km sec BA 4 9 6 5km sec 7 m 4 75km sec 3 m 2 25 4 0km sec 56 61 O No 2 1 5 3 8km sec 4 0 5 5km sec 5 m 3 75km sec 3 m 3 83km sec Ch ok MH 64 67 CHS O No 3
34. 1 75 GRRL MEME cm 10 20m 3AA 150 300kc sec 20 100kc sec
35. Mabie 1 1 A Brspaby7t ee i Fa z N tc kr BISK iB jeg j SO 7 PRET 17 x SEISMOCOUNTER HAMMER ORRUI RU2 O Jet z3 g 7 MM GAIV CoNT 7 D 2 3 tga ME E 9 EXT BATTERY 6V RESET PUSH MEAS 0O OO Q vet PZ A wy zaie ESAN EMAY GOT AM ERIN l fenet Fia oik RI AYG 1 z SA Senge PUI mage PUI YZ f Z X Ne 2 EIA py debe Re so V R E D PU 35 ais od fh JEZA YET hi ad 3
36. N W C 5 N 2 3cm 216 20
37. D A 1 6 7 A 1 4 7 7 A 7 7 A 1 5 7 7 A 1 4 6 7 A 1 2 6 7 7 A 1 3 6 7 6 7 B 1 4 4 6 4 7 B 3 6 4 7 A 1 3 7 7 B 1 4 5 7 6 7 4D B 7 7 43 A 1 4 6 7 7 A 1 4 6 7 7 9 B 1 7 D B 1 7 a B 1 4 4 7 5 7 B 1 3 5 7 7 B 1 5 7 7 CD A 1 6 7 6 7 A 1 2 3 5 5 7 A 1 4 5 5 7 A 6 6 7 A 1 3 3 5 6 7 D A 5 5 7 fI A Z PI A 7 211 T 5 3 WAR
38. 7 m 0 76km sec 5 m 1 33km sec 49 62 CHS No 4 Gitte 2 5 4 7km sec 4 92 5 43km sec 2 14km sec 64 71 CHS No 1 Gitta 0 6 m 0 36 2 0km sec 3 m PAG 1 71 2 67km sec 65 67 CH
39. 2 3 m 2 D 2 bo
40. 2 0 5 0km sec 2 6 lt 5 1km sec 7 m 3 8km sec 3 m 1 40 2 55km sec 52 60 CHS 0 No 2 20 25cm 6 8cm 3 m 1 62 4 58km sec 49 59 CHS No 2 30cm
41. 30m MD O hi T
42. 2 6 3 3 1963 95 OL 2 A B C D 1 97
43. 18m 20m 20m 30m 12 13 PUHT 12 CCI ERA 3 1 M E E m 1 2 3 4 E 10 ss 20 25 30 over a a e e e el FAy wg s s s lsls ls a p shai 0 6 1 5 4 4 6 0 5 4 15 3 16 5 15 1 25 8 323 H wee TLL Cf 0 az 2 3 20 ss 36 32 20 2K j TTN 11 3 1 O 211 3 2 E a 9 7 sl 4 8 J 1 oo mo eon fe se se fs fe fe Ts HE 6 6 6 4 4 4 4 4 amd ed bd a 2z 622 7B2 3 2o 9 6 3 4 3 Ta SERRE RCE CCE
44. C 1 WYLLIE 1 2 SHUMWAY 1 p ppJL 1 Cs C l Cu cm dyne Cs cm dyne V cm sec Vs Va Ve e ps DD g cm3 p g cm 76 211
45. 1 2 WA 9 s 7 6 s m 9 8 7 6 5 pier o eleele tale e oe a gt zay eg 8 amp s 9 1 Cmsec 12 0 11 1 12 7 10 9 12 1 9 9 11 0 8 3 10 9 7 6 2 Cmsec 13 4 13 9 10 2 11 4 9 5 abc abc abcl A A IAAAl yv ell elelaler7 slate ae lnt als Seca BTR EES xala keda plg mi fa G msec m msec m 1E msec 1 6 5 2 7 a 43 9 21 C 5 161 6 222 4 2 C 5 5 7 c 42 2 a 155 9 sjelo e sal os lt ise 4 c 5 9 7 c 58 4 63 8 25 C 5 162 9 5 c 5 11 4 a 70 2 79 8 30 b 7 87 4 7 c 5 17 4 17 b 5 47 8 40 b 7 40 b 7 fue 4 a 2 6 c 67 2 78 6 so so b sl b 8 143
46. 3 5 5 0 km sec 3 5 5 5km sec 3 5km sec _ 9g til Nol O 3 5 4 5km sec 4 0 6 0km sec 9 m 3 33km sec 4 mm 3 0km sec 65 72 O WI CEA RA
47. HL 1958 1963 1955 JIS 1962 C1 ae oe 1952
48. WA FILME SIL RR 2 4 2 4 1 9 6kg G 220 mmX 360mmX 250mm T BBM 25 kg 5 C 40 C 1 2 3
49. 99 1961 N 1965 P D 1966 7
50. pp 192 194 207 211 1963 4 pp 943 1964 5 pp 362 365 674 675 995 996 1006 1007 1104 1106 1965 6 1967 7 E Schmidt Consulting Engineer Concrete Test Hammer Type N Operating Instructions pp 1 14 PROCEQ S A Switzerland 1960 8 78 1967 9 Geophysical Specialties Division Engineering Seismograph MD Models Instruction Manual pp 1 80 1964 10 Rippability 4 3 pp 107 100 211 116 1963 11 No 66 185 pp 1 9 1966 12 1 pp 70 77 1966 13 BlgpPl1A 2
51. CI ta E OG dE 1 ie 2
52. lt 3 1965 2 5 2 5 1 5 2 211 5 2 cm o 5 1 0 95 1361 674 94
53. 20 e DEROS ee Pee I Cy Oy Ce ee aii I o 3 6 2 PUI im Vom dm Sh Gh Bm Sm Um Gm 2m m REO PUIL GY GEE tp a 7 30 m 2 mk K af zk tR Z ee BSc CORO D LA 7 My mee waste Been et D ra APPERT ee BE o E i TP lt oRo DRA AIPA Atk 0S Ze pa a gh BT ogy 129 332 3742 V3 ie Sey ore GIN mee oo 4 OR 2 te 2 22 1 4 Gie ie Cro en G7 lt A 3 FBG Nag GI C 7 DK Rg Een hE ne 8 G3 G8 G8 G8 GI GE 97 47 GI GF C ss 8 b AK 72 0 9 3 7 Y 2 2 9 sy E h t te 7 0 TD tk t ti t o Bam 3m ZZ em UZM A A 2m UM dit km 2 Gn bm GWG Gn Gm fr bom 2 Vem VEA Ub Go K HLSec os Je 97 IX 0 3 ob 3 o 0 3 0 3 o 03 6 Of 0 3 3 Lo3 03 44 2 0 T 0 3 0 3 S A 2 Of AAS o 3 fog ou Ms ob og ot CSR o og 0 4 ee ob OS 6 DD MERI DAER EEDA km sec 145 KIE TH COL AR EY H 1 reo 4 i SOLE 120 211 FEA No 1
54. m E Geeks HH Sx gt N gt TE ae termes EARRA 0 682 I amp FABER 337 kg cm NSR 637 9 1378 542 25 jst naa oles 0 601 Tl kg 360 km sec kg cm N 0 442 T ne BABE ae EF igi HU gt 49 I Mei Se 1 RNeHORRE Ls 52 a 5cm 300 kg cm 10 kg cm HE K 48 60 ton 3 5 kg cm mo 0 1sec N
55. TERDI E 8 Aloe A RK EJERE E R F A EEEH YY r EEEE PE Ef K ae he IK FRENKA te IAS A Z E es E Pn Ww Aa ge AREKE D an OS kes ys B me us SRE ae EERE TE Like Ke 1 ARIST SABA Ald 1 2 C D 3 1 4 1 15 1 pp 46 53 1962 2 BRE pp 132 208 212 420 424 2361 2383 2541 2544 2551 2566 1964 3
56. WERT BAT SL 20 30m D
57. 2 4 3 3km 82 211 sec 5 0km sec 10m 0 54 0 86km sec 5 m 3 0 3 3km sec 33 65 AHERE 3 1 5 2km sec LAOH 6 5km sec 7 m 0 981 50km sec 4 m 0 69 3 16 km sec 3 16km sec 54 58 CHS No 1
58. 4 2 8 5kg PP AMS E 5 ARAI PUTL PU1I PUT 1 0km sec 1 4 1 HH E E KR OVM m Pour Pur PUI PUI Put 2 75 2 75 2 75 2 75 2 75 c P PIE lt 3 C C C Le ee 13 s 7 es msec iZ 1 4 0 9 0 7 0 6 km sec 1 62 1 96 3 06 3 93 4 58 A B T SS OSS oss PUL por il ie Mi ed p D i 20 2F E c 9 ARAI ii N 92 211 4 2 E E KOO 2 Ls sm lc m 0 95 c P PIE c Jifs slifselsejifs feli s elilel s Cmsec 1 6 0 7 1 2 1 7 0 7 1 al 1 7 0 9 0 5 1 7 0 6 0 7 1 6 0 9 0 9 km sec o salt 360 79 38D 23D 46 0 29 l o l oo
59. 211 KS Gs Seismic Classification Rock velocity Geological condition stage group km sec Crack massive rock and little A 5 2 or more Compressive strength of test piece kg cm 1 1600 or more B 4 8 or more Poisson ratio natural ground 0 16 or less Plastic earth pressure no action A a little sometimes fairly many B little 2 ee A 1400 2200 B 1200 1800 B 4 6 4 8 0 14 0 20 no action A Py A fairly many B a little sometimes fairly many C little 3 B gt 4 0 4 4 A 1200 2000 B 1000 1600 C 800 1300 G 0 16 0 23 C gt 3 8 or more Onoarea Crack and crush A crack fairly many in places small A see aes fault sometimes crush band B crack many in places B 220 small fault C crack a little 4 A 800 1700 B 600 1400 C 400 1100 D 200 600 C gt 3 2 3 6 0 18 0 25 D 235 626 6 Generally no action but action on condition that crush band spring etc A Crack and crush A crack many small fault on 3 6 4 0 occasion crush band B crack many crush band or weathered band C crack many or soft rock D soft B gt 3 4 3 8 rock 5 C35 6239 A 600 1400 B 400 1200 C 200 800 D 50 300 0 25 0 40 D gt 2 2 2 6 On occasion action Crack crush and softness A crush band B crush A 3 2 3 6 band or crack small fault many weathered rock B RE 4 C crack many crush band or soft rock D soft
60. BH OVE 1 3 3 2 N No 1 GERIR 2 1 E CBD F ry ry eee ee or ae Cm 5 4 3 2 1 st ego ee Janr a PH a s s as s s a a fay ee 18 4 4 2 2 2 s5 sa ls 2 4 re cae 10 6 10 4 6 9 5 3 2 0 0 9 2 0 3 5 8 2 7 6 0 9 0 6 22 2 O RRR No 7 P gt wo 24348 t 2 091 emery be a eh st 67 PUEH 42 t3 tU S Ons PERE Ow EQ mom y Lay 9 MRO DRH SERR INo PUT 2
61. avid 8 9 6 2 2 1 8
62. 24 306 ESZT OT AP 500 4688g 3 kc sec 2 kc sec 500mV g 5kc sec T
63. 56 65 No 5 O 10m 1 0km sec 3 m 2 03 2 20km sec 61 67 HO GREE 211 6 m 3 0km sec 3 m 1 88 lt 4 25km sec KHAO V 62 63 O No 1
64. N 1961 37 P 1965 38 1965 39 2 34 pp 27 36 1961 1 101 Studies on the Geolegical Classification for the Design and Execution of Forest Road 1 Degree of the rock and seismic velocity Mitsumasa FUKUDA R sum With regards to the design and execution of forest road granting the experimental analysis based on the actual value carried out the fundamental and available studies on the question of rock excavation that exercise a large influence upon the costs of construction show little as affairs now stand and much yet remains to be done in this field According as the subject of execution varies from manual work to machine operation it is to be desired that fundamental studies on a fitting classification of rock strength and its judg matical method be compiled to allow the quality standardization to come near within a practical useful range from the view point of working even though the rock object contains many com plicated elements i e weathering etc Beginning studies on the geological
65. 0 5 lt 0 6m 6 8 PUIL PU I 0 5msec 5
66. 2 211 1950 7 8 9 3 4 PHE PP 41 5 17 41 5 18 1 41 6 7 41 6 16 EOF HER 2 8 41 10 17 41 10 21
67. 4 DEE 7 Ke mSe msec ec mSec gt mec RES 2 062 IS laa 2ay fgs tZ S 7m 2m 3m Ym C OK HMEKE EA No 2 Ss 12h osy ee PR 0 36 Kec mS mSec m Sec ST a o See 2 lets ST 3 2 PUT 3 Fm 2m Um Um 2 CF je VERE EY NAY Tasty MED WO 3 286157 No 3 00 S No 2 AL3 23 Noz 260 8 PUL 2 ir Com Ge jmp PUL NOCPDEE a SO Ns PUA N y EHO RTRDER z ANERE 8 FNOCES FAI iN Rb gt AR v h t DRIK SRR nbc WES SEE RE Se RY No 1 7 No 2 2 211 No 2 iX o b 2 D Se lt fe E E80 O No 1 23 1 3 mSec
68. BEER 2 3 gt C 70 2 4 4 DC12V 100V ARE 10 M 2 1 3V X10 CA 80 2 5 PH PP
69. C 3 6 4 0 800 1700 B 600 1400 C 400 1100 D 200 600 3 2 3 6 0 18 0 A IE E MEEN MEETER COARSE EOR TH T 3 6 4 0 ame C ane ae 3 4 3 8 Re D A 600 1400 B 400 1200 2 6 3 2 C 200 800 D 50 300 2 2 2 6 0 25 0 40 5 yg 3 2 3 6 A BARE A B i i a NES Cea ERR DIRAY BESE RN ra Oe 2 2 2 8 C 50 400 D 30 200 1 8 2 2 0 30 0 45 3 ae Wee A B C ee SEIU D 2 8 TEREPET A C1 SQ GA K AMEE oe Re i EZER a
70. 3 3 3 3 1 No 3 4 3 1 T P PH P H Hk BOWS 1 2 1 2 P 6 7 PAT a x foros O 7 0 3 gE 26 408 be 7 o b 0 8
71. 3 0 4 0km sec 4 5 lt 6 5km sec 1 33km sec 40m 0 43 0 53km sec 5 ma FAG 0 59 0 65km sec PU No 1 3 5 4 5km sec 4 5 6 0km sec 10m 0 45 0 71km sec 4 m 1 0 1 1km sec 48 63 No 2 Aiba Hen
72. l ee i 2 L 208 22 COPE E80 0 60 22m 1 D No 2 R BRE o to Gio ty ws 0 7 4 5 FRERBEN No 3 CRE et TG ee 130 211 till No l RADE 332 Ke By Be 33 Km 0 9 Se 6 Sec ALDER D Sec 2 Ce i Ri ee y x 7 lt f Som C3 7 O 2 0 CAO Ee w hee Oy cs OT TT 1 131 FO aS ABE EI DPR Zar KD 2 0 sec foes 0 Jee Se PUL t2 43 Gm RE0 04 m 207I F1 y MSec V USSE G ON CT G3 T CG ni F2 t tS Pull m 2m 3m CUM SM CEI ER PI FI
73. 1967 14 2 80 11 pp 24 29 1962 15 3 FAbAYV ILSABARREME 2V7U hb 14 3 pp 87 90 1966 16 4 FALAYVV KESBAORBEME 14 3 pp 91 95 1966 17 13 1 pp 22 24 1960 18 1 7 9 pp 557 560 1965 19 Sk 2 7 10 pp 619 623 1965 20 Sh 3 7 11 pp 683 687 1965 21 10 10 11 4 pp 5 117 379 389 1958 22 34 1965 23 IV 1 500 000 1967 24
74. O 30cm 2 4 3 3km sec LAOH 5 0km sec 3 6km sec 15m 0 18 lt 0 30km sec 7 m 0 47 0 77km sec 0 12 0 13km sec 1 25km sec No 2 GSH O 2 68km sec 20m
75. P P No 3 PP No 2 1 re PP No 1 PP No 2 No 2 No 3 P PRIZE No 1 od 211 1 No 1 No 3 1 am C Zew 1 BERR a GG HO ANSE REIS 4 F AP 500 Ze
76. No 4 GOCE REIS SHC 6 m 2 3 2 5km sec 3 m 2 3km sec C1 83 No 1 O 30cm 2 4 3 3km sec 5 0km sec 5 m 1 9km sec 5 m 1 0 1 14km sec 37 55 No 2 Ge
77. LEHTI 1 2 2 TH RE 29
78. 12 25 TE DX 500 1964 N 1 7 PUL PUL 1 m PUI P HH P P 4 lt 5 m
79. 0 36 0 43km sec 6 m 1 25 1 29km se lt gt 0 19 0 25km sec 8 No 3 GRA 2 0 km sec 15m 0 57 0 64km sec 6 m 0 63 lt 0 95km sec CH OVA 0 399 lt 0 70km sec 2 m 1 54km sec BHR dewe O
80. 1 RE km sec N 10 N 1 89 PUTT No 1 No 3 1 10 3 3 3 11 2 m 10m P 10m 15m OY RAMI
81. 1 PUI I a 2 BAID V7 7 do U0 CP mM HE FA No 1 No 2 GEKE ee eer SCS KDE 7 Kec 3 2 PUL 26 CAM 0 3 ESO RGA No 3 x tme Emm Fok ga lies ADFT 0 Pee mS ec msec hee Bee Boss zi q 7 MG 0 2 G3 GF Gio uj oo oe 9 2 PU 2 t3 TH tf omy Cem Gm Ce uw Aio Om em Gm Em Ew od pa OF aH qh C1 127 No 5 4 3 2 PUL t t2 3 tg 0 002 790 2 U E0 Um C2m Gn EN End 128 211 d D A ob 113 22 mise m VA Sec Teno 6 em oS Mm re ae 1 eL 3 0 ED 3 0 Kec Dea 97 7 OmsSec 7 mSec ma gt 2 PUI 2 3 3h 2 Im ES 0 Im 2m Gm D CKFEBRABSEN No 1 feud Gio 0 om Fee 0 2 0 8 mSe ie 4n SIEN 47E K ec Oz
82. A Aeolian Rocks fer gt Granodiorite Diorite Gabbro Quartz Igneous Eruptive Rocks Porphyry Granite Porphyry Porphyrite Diabase Serpentine Basalt Palaeozoic Mesozoic Sedimentary Aqueous and Clay slate Greywacke Conglomerate Schalstein Chert Limestone Black schist Chlorite schist Piedmontite schist Metamorphic Rocks Quartzite Quartz schist Mica schist Phyllite Gneiss Hornfels Igneous Rocks rmt Rhyolite Liparite Andesite Propylite Mesozoic Shale Sandstone Tuff breccia s Sedimentary Rocks pp Tertiary Siliceous tuff Palaeogene Neogene Sedimentary Rocks Mud stone Silt stone Shale Sandstone Conglo bo tuff Siliceous shale Siliceous sandstone 3 merate Tuff Tuff breccia Agglomerate Neogene Pleistocene Sedimentary Rocks Mud stone Sandstone Conglomerate Terrace pile gt Tuff Volcanic fragment Note C1 We had better take graphite schist beloging to A group to set one stage down for the Rock Strength Classification 2 Serpentine Propylite Tuff etc having the imbibition and the expansion may be accepted as C D group 3 When the water springs out we had better to set one stage down 4 Generally speaking the compressive strength of Tuff s test piece is smaller than the value described in each stage 104
83. 3 ke Jv 1 v IAS BEERS DX 500 DX 500 HEA BAREL LTHAH 211 Geophysical f J SPECIALTIES COMPANY 1 115 D No 1 GREE GB mM 077 is 1 be MSec m G3 dm 116 211 No 1 0 3 Se BE Ke 2 msec YG eee Ps msde y pms a di ER GF 3 G8 _ gt GB _ G8 PUT 98 ym 3m 2m 7 Mm GRO m ek ye 3 KR ae mS mSee LS MSec 12 MSec 1 75 mMSe 2 nSec
84. 41 pp 292 299 1967 25 1 pp 207 376 377 382 393 398 1965 26 FTUMARRIE D gt 1 FOR pp 191 199 1964 27 pp 92 105 260 262 1966 28 pp 57 58 263 339 735 737 1963 29 pp 308 318 327 331 1965 30 1965 3 31 1965 7 32 1965 12 33 1966 3 34 1966 35 RABBIS 1 pp 26 30 127 226 275 291 1964 36
85. RR ol SRM NIG AN VAAN SA SI IN SS AS ACS NE SOON Gomes AY ed JI fv Jp Y YE I RR Fy A LE NS Wg NA D No 2 vw No 4 No 1 D No 2 No 3 Ya 9 No 5 Va Kit No 3 No 1 v No 2 7 No 3 LOB ADY CK TENNA b NN SS SG LOGS RS Cy One YSN UG ee BNO ULC Sy sae p w C 109 B Bur j a oe aes PUITL No 1 A gt 2 PP PP No 2 110 211 P P No 3 Po PP
86. tail 3 3 a lo lal ala m PUL were ve a a y v P HIB a a a a a yr aws e oer 2 0 3 2 4 2 5 4 6 6 FALDO 5 4 3 2 pux a P HIE a ai il a a a pe we 4 4 4 4 1 msec EEE 2 gt 66k 27 0 Feit Um vs 12 Seq ETA 13 3 2 3 3 1 91 0 26km sec 2 8 2
87. 0 c 23 9 m a 129 6 60 b 8 172 3 P a i 34 3 38 6 c 116 2 128 2 70 b 8 200 6 c 36 2 37 2 21 a 5 215 5 223 7 80 b 8 226 9 1 87 ane 720230 4 AR Cm 8 6 P PH 8 P 1 2 6 2 m 5 SL
88. 6 rock or degree of consolidation bad C gt 2 2 2 8 A 300 1000 B 100 600 C 50 400 D 30 200 D 1 8 2 2 0 30 0 45 Generally action Crack crush and softness A and B crush band or 3 2 or less weathered rock C crush band or soft rock degree BR 8 or les of consolidation bad or weathered rock D crush 7 band or degree of consolidation very bad C 2 2 or less Cand D 50 or less D 1 8 or less 0 35 0 48 Action 105 AE DE AY VA 2 1 AB 2 SO No No No 1 M Bicone Bhs AA NE SN gt NN n 3 lt nN an Pope X 2 C i A AN SAW Ot eB ow AES 34 a J PRS i gine em tas ie i Te Na REW 2 211 No 1 4 No 2 OF No 1 No 2 No 2 BD No 1 No 4 7 C 107 SN SOE I NM OT at N AA ODN
89. Sal a uy 2 0 5 0 1 3 2 5 2 4 1 0 5 0 Gio Ca 10 56 67 G10 2 3 10 A 9 u 2 3 3 8 2 3 8 1 7 3 8 x oe ee Be K aa G8 CEe 8 5 63 Ga ig 3 3 5 6 oma 6 0 3 8 3 8 7 3 8 3 84 0 5 Gs G8 64 67 Gio 1 3 5 eee ae X LL 3 9 3 5 3 5 but OI BaSS A Gio Gio aid 1 4 4 13 5 5 5 2 3 4 02 3 4 0 4 8 EE ose G10 G10 56 61 G10 1 3 7 2 0 4 ii 9 6 We ERE Gio Gio 5 72 Gio 1 4 9 3 5 4 a 0 6 G 94 211 5 1 5 1 25 72 O
90. qh2 6 05 404 HE 210 20X20 2 0 0 6 0 6 b ob as 0 6 o 0 606 0 6 7 b L 3 2 P 2 t3 0 6 ob 27 7 to e gt V 4 msec i BPS OOM RE ay A Tm mep re 3 Ke PUTT km sec f f 7 4 4 3 2 PUL 2 3 PEREON S 4 DRO Mice SER 5 1 1 4 1 SKEN are eile 12 ia 7 1 4 ee 1 2 BE RE 7 7 2 D 2 1 4 K WSeg oy Ky 1 1 CO EE She E cee 0 7 2 t3 9 8 7 6 4 3 2 eee Pe BIE mM AS 6 7 2 1 2 86 211 1 1 10 8 7 6 m 10 9 8 7 6 sexs Tete p te Tete e 9 9 9 8 1 msec 11 5 12 6 11 6 11 5 15 4 10 5 11 5 10 4 10 6 8 2 9 7 2 Cmsec 19 0 17 4 P24 18 3 11 4 12 5 16 6 17 3 15 3 3 msec 18 3 ARER
91. 2 7 G8 457 D 24m 0 7 m PUL ie AERO x mS2c 3S B 3 See No 4 C 123 No 1 A Se co nec yy See REE KK y se 3 2 aE PUL 2 3 CE 0 0 RO oPm Fm 2 7 T h t tZ 5 SD C 1 ie ie Be 0 2 epo K RO hats ogm Gs Is 2 124 211 O No 2 EREE ADE IE 2 76 Sec DBE 0 76 km or IRE 4 Ad ess l 4 2 F oe PULL t2 CE 23 GOM o am 8m 3 1m No 4 GRKE Do I 5e 31 en Y No 2 214 K Bet pl EDR 2 14 mA MSec oB 2 9 24M bN 4 t C 125 No 1 0 368 ADEE 2 0 ec mSec mSec ms L 5 3 G4 ec MSec lt ea oo
92. 2 6m5Sec SS 8 as G5 G8 XGI CGP ae t3 y TS 6 7 1m 2M Cz lt ERGa lt 23o er gt 60 27 0 mSec 27 3 MSec 27 5WSec lg t 0 Com CIMI rom C1 117 O No 2 lt RENET 0 36 sc ku 2 2 See Fi MSec A PL 2 68 ea ay Bl 29 3 Glo 2 G9 m 7 FA 73m fram s m aom TA 3m 7m EM poren anm Se RDZ 043 sa sU fime 109m O Me sec 22mSec 0 9 MSec 5 0 MSec Ge G2 3f G5 Pui t2 pm Em Fm 2m A m REO CLI g FDR 9 43 Kee 0 Sec IF msec mse 1S 7 MSec 3 G3 UGS 5 G8 6 GPF 3m mMm f 6m 118 211 No 3 ream SF iry mSec nC a KO of iS gt BO ee ace 3M ge ot a ne CCD a X mo AX Ix 2 rs G 2m crew lt a Req PUL 6 7 FRO k Ify dee MSec jm 2 7
93. 3a 08D 93D 59 osli 06 8 4 i PUL i PU I PU TL PUILLA 10 15m
94. RO 1 BRR 29 ROK
95. S O No 2 6 m 1 71km sec 3 75km sec 3 m 3 54 3 80km sec 2 0 4 5km sec LAOH 3 5 6 0km sec ik KARA T 50 60 58 62 No 3 O 2 0 4 8km sec 4 0 5 1km sec 10m 5 0km sec 3 m 1 25 2 50km sec
96. classification for the design and execution of forest road we first made the seismic exploration as to percussion degree on the rock at job sites of na tional forest road in both Gifu and Aichi prefectures For the purpose of this investigation we adopted Seismo Counter Japanese portable seismic meter Sokkisha s product and applied the cutting slope plane or the upper lip of cutting slope and vicinity of forest road in one year or so after newly creation In the following year classification by the difficulties of cutting operation for this study on the geological classification is scheduled The investigated places were 25 and of these 18 were in Igneous Rocks 6 in Sedimentary Rocks and 1 in Metamorphic Rock Most of the seismic impacts were made by the hammer blow by PH method utilizing micro switch mounted on a hammer and receiving pick up and PP method pick up to pick up The approval of hammer value we utilized Hilti DX 500 for the standard the safety rivet hammer of Liechtenstein make As a result we found that if the mediums are stable for example the rock cutting slope plane etc the hammer values were the same However if the mediums under part of the seismic origin are not stable for instance in case of the loose material overlying rock upper lip of cutting slope the values are often unstable Besides regardless of the distance of seismic measuring line the confidence degree of Hilti value was high th
97. e first In the event of the latter with a view to catching a desired primary wave cycle signal in longitudinal wave surely and securely we must devise the method of seismic impact for them CHilti etc Further there is necessity for us to increase the sensitivity of received pick up as cf course all pick up must be firmly fixed in the medium According to the comparative value of hammer and Hilti that we examined on Kant loam Diluvial plateau uniform layer and plain ground surface before laying out and making the actual work the distance in confidence limits of measured value was 10 meters in hammer and 80 meters in Hilti 10 211 The seismic travel time curve an analysis line is formed of Distance in transverse axis and Time in longitudinal axis There was littie difference between the measured value of PH and PP Generally speaking in the case of the seismic impact by hand hammer the distance of measured line to the utmost limit is reckoned to be 10 or 15 meters in the cutting slope plane on even the rock but under good condition permitting observer to make out Signal and Noise within the fitting signal to noise ratio there are places where it is 20 or 30 meters We also conducted several investigations on the relation between hardness of rock surface using Schmidt Test Hammer type N it has been continued by Nagoya Regional Forestry Office As to the split or t
98. he like of bedrock influence on the seismic wave it was indistinct and this direct seismic wave spread on cutting slope plane For verification we set up the distance of 2 75 meters measured in the direction of the left and right on cutting slope plane of Quariz Andesite developed regularly in the shape of platy and columnar Joint and studied the effect produced by changing the Gain set high to low Gain and we caught a desired wave by PP method about Gain 7 or 8 Further the small hammer weighing 2kg was added to the supplemental sledge hammer of apparatus for measuring weighing 5kg so we looked up five hammer stations where they are 0 5 1 0 meter from the foundation point around it The test was positive as would be expected namely the sledge hammer produced sound waves which travel through the medium and the meter in Gain 8 caught a desired wave under stable conditions but the meter in Gain 1 did not catch at all further more in the case of the small hammer the meter in Gain 8 did not catch it always under unstable conditions Taking the geological condition into account the numerical classification of these investigations with reference to the rock degree and seismic velocity will be compiled with the accumulation _ of execution examples covering a long time period Further the execution examples must be compared with one another among these cases that is the result of preliminary work using seismic prospecting the geo
99. logical condition after this execution and the past seismic exploration data As soon as the accumulation of these data is obtained the author will put them in order and find the average value g of rock weathering degree fresh bed rock velocity a L test piece velocity in sample belonging to the first and the second weathered band at all over the cutting slope plane of forest road On trial comparing the results of these measurements seismic velocity and the photographic recording from the outward appearance of geological condition at test site etc and Applied Geological Investigation Office s rock examination report data 1965 Compressive strength of rock test piece ultrasonic velocity etc with the Standard Rock Strength Classification Table in natural ground tunnel design and execution use Japan Railway Office 1966 11 in the numeral as a rule the rock of cutting formation and its neigbourhood of forest road on and in the rock slope plane may be divided into 4 7 stage as much as under half of all and the upper half 1 3 stage as rock test piece is small We are obliged to watch the stage of under half in reference to it thus making out the rock strength classification table for the design and execut on of forest road Still more we should like to carry on researches more fully into detail as to these CI 10345 Reference Table Rock group
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