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2 - D.J.Varnes Crown Main ScrapTop Head Transverse CrackMinor Scrap LongitudinalFault Zone Surface of Rupture Foot Transverse RidgeTip ToeRight Flank

3 ph RpH -3-

4 -5-4-

6 kh JIS A115-6-

7 -7-1

8 -8- 隙

9 隙 w -6-1 w utan -6- c' ' 隙隙隙 u 汲 1 汲汲 -9-

10 k= -6-3 k Rw t1 t h1 h L rw Thiem 1 ) )log( log( ) ( (.3) 1 1 h h L t t L R w w

11 kh hw lnr/rw kh h =lnr/r -6-4 k H hw h r Px y R rw r TH hw lnr/rw TH h=lnr/r -6-5 =kbw bw kh hw lnr /a1rw kh h = lnr/d1 lnr/d -6-6 a1 d1x y dx a1 y TH hw lnr /a1rw TH h= lnr/d1 lnr/d

12 kh hw lna1/rw kh h =lnd/d1-6-8 TH hw lna1/rw TH h=lnd/d

15 Fs 1.0 隙 1 Janbu Janbu Janbu 1 c'b Wub tan' Ff 0 WtanQ n n cos 1 tan tan'/f f 0 50 d L 1/33.6 f 0 d/l 0.0 f kn/m W -15-

16 c' b m u 隙 ' L d L L -10 SHIN-Janbu- -11 SHIN-Janbu Janbu a a ' a a' n 1 n 1 Ff 0 n1 l1 n1 l1 c'b Wub tan' n Wn' tan' n, n1 W tan Wn' tann1q -10- Wn n ( kn / m Wn' n Wn V cos V 1 w Z w /sin ) ( kn / m ) QVsin 1 w Z w w ( kn / m ) Z w m f 0 Janbu -16-

17 -1-13 V a-a' b-b' n c'b Wub tan' Ff 0 l1 n n l1 WtanQE Wn 1/ h+h'b+vcos -1/ - 'Z w cot WnkN ' Z w a' m ( kn / m ) Bishop Bishop F 1 Wsin c'b Wub tan' cos sin tan'/f Fellenius F c'l Wcosul tan' Wsin l 1 Fellenius -17-

18 F c'l Wub costan' Wsin Bishop F 1 u WsinPcos 1 u 4r r cos c'b W'XPsin tan' cos sin tan' F W' kn/m P wi V wsin ub X Xn Xn X 0 Janbu 1 F W 'X tan P sin tancos EbEa c'b W'XPsin tan' na W'kN/m X X 0 P kn/m Ea kn/m Eb kn/m 3 隙 -18-

19 Bishop F 1 Wsin+Ucos c'b Wub tan' cos sin tan'/f W kn/m b m c' ' u 隙 U kn/m ( kn / m ) Janbu F 1 c'b WV ub tan' WV tanu Q n n cos 1 tan tan'/f V kn/m Hovland FelleniusFellenius Bishop Janbu 1 Lamb Whitman

20 F A Leshchinsky F3D A1F1AFA3F3 A1AA F3D F1 F F3 A1 A A3-15 '' '' '' c' c'' '' ' ' ' R -0-

21 p R pr p r '-tan ' A B A B -16 c'-tan ' 隙隙隙隙隙隙隙隙

22 --

24 -4- -1

25 m

26 1 d s d bw sinh1 exp (x) sin 1 d a 4-3- r 0 x ln sinh bw k s 0s / q q k s 0 sinh ( R / b w ) ln sinh ( r 0 / bw ) L s m s 0 H h 0 m h 0 r 0 H m h0 m b w m k m/s R m s m a m d 1/ m

27 d h q 0d h ak d ln r 0 r 0 1 d H 1 q 0 0 k ln ( R / r 0 ), 0 H 1 R h m hmax m q 0 r 0 m m/s k m/s / hmax/d H1 m m 3 /s 1 R R 575s k bw ( m ) R m b w s0 H h 0 m k m/s h0 m R R575s 0 kh ( m ) R m H m h0 m -7-

28 1 0m A max A mkn/m maxkn/m A =tan 45 - c - tan 45 - h kn/m kn/m 3 m P= 1 H tan chtan c kn/m m p= 1 3m- h m H 3 H h P

29 p max 3(3 4m) 4( 3m) P H h' 3 4m H 4( 3m) p hmkn/m pmaxkn/m m P H m O.55 h'm Hm kn/m = 1 H tan chtan c pmax 4-13 pmax p 1 h tan (45 ) p p p 3 4 h 1 1 { h 1 tan (45 ) c 1 { h 1 1 ( h ( h tan(45 ) h1 )}tan (45 ) c 3 h1 )}tan (45 ) c3 tan(45 ) 3 tan(45 ) p { 1h1 ( h h1 ) 3( h3 h )}tan (45 ) c3 tan(45 ) 4-3-1, 1, h, h 1 h, 3 3 kn/m 3 m -9-

30 , 1, 3 c, c 1 c, 3 kn/m max U0P Mmax=PR U0+ Pcr-P PU0R = 1-P/Pcr 4-3- max = max 1.0 m 0 cr =1.5 EI R 3 = 3EI R /

31 max max PR A +Mmax Z a max a auo Pap Pa p ( 1 + A Z Uo)Pcr + a A R p a A Pcr =0 R L AL = AL + A Hl AHl H = AL +A Hl ALm AHm -31-

32 M IL L = IL +I Hl H IHl = IL + IHl ILm4 IHm4 L = LN A L LM Z L La H = ( HN A H HM Z H )l H a ZL ZH M 4-3- Mmax max A' L A L / L A' H A H / H Z' L Z L / L Z' H Z H / H p p A' L [( 1 U 0 ) p Z ' L cr La A' R L ] p La A' R L p cr p A' H [( 1 U 0 ) p Z ' H cr Ha A' L / ] p R Ha A' H / R p cr m -3-

33 m 1 Hazen-Williams Q = A C 0.63 I m3/s A:m 100 D/4 m Manning Q= 1 n A R /3 I 1/ Q = 1 1+fe+(L/D) A = 14.5 n / 1/ gm/s Hm fe 0.5 m L D -33-

34 Q = 0.8 A gh D /D

35 m 5m FEM -35-

36 -36-1

37 3 F0 F 1 Fellenius Fellenius Pu FF0 T Pmu FF0 F T Pu kn/m Pmu kn/m T kn/m Bishop Janbu Pu FTf0S f 0 Pmu FTf0S F 4-4- S f0bishop f0 1 1 Fellenius Fellenius Bishop Hu Pucos Hmu Pmucos Vu Pusin Vmu Pmusin

38 Hu kn/m Hmu kn/m Vu kn/m Vmu kn/m Janbu Hu Pu Hmu Pmu Vu 0 Vmu Y.L.Chang kh1d 4EI, khd 4EI n 1 kh1 kh h1 h 1 m -1 mkn m -38-

39 4-1 z1 h1 z 1 z 13 h 1z 1 3h 1 z n4 h 13 h Hu EI n 4 h 1 z 1 3 h1 z1h HukN/m z Mmax Smax M max B xp C D B M B 4E1h 81 z h C D Mx ph x h p 3 E 1h 6zx4 zxp h3h x pz H E 1 h 3zh z E 3E h zh Mmax max MB, Mxp S max B SB SB B B B B -39-

40 B S E 1h B 3z h B S BH E1h 7 3z 4 3 h Smax max SB, SB EI 490N/mm H JIS 4- E N/mm

41 D aa D s 0S max Smax Dm Nf a Nf1 A A S a Mmax Z Ma Mmax a D y ymax 4-4- Dsm Dmm Dy m Sa Ma knkn m a a kn/m a m A Z m m 3 Smax kn/m max max knm/m 0 3d 6dt4t 3 d dtt d tm 0.0 Nf1 kn Nf kn/m -41-

42 m 1 DSmax max a 0 A max kn/m Smax D m a kn/m kn/m 0 3d 6dt4t 3 d dtt d tm 0.0 Nf1DNf A DMmax a Z kn/m Nf1 kn Nf kn/m -4-

43 A m Z m 3 Mmax D m a kn/m kn m/m 3 yma D Ymax cm Ymax Dymax Ya Ya QkN Qp1 Qp H 1 1 Qp13d 1 1h1 Kp1c1h1 Kp1 fs Qp3d 1 1 h 1h1h Kpch Kp fs kn/m 3 d m Kp tan 45 fs

44 1 lr tan l l r.5 y y l r m Fd 1 Fd Fd Fd d S F d d Tr ' scos Fd d S d T r's cos 1-44-

45 Fd Fp r's d SFd d T r ' s Fd sec d S Fp Rs r's Rs Rs Hmu Hmu Ru Ru d S d T d S d T F 1.0 Hu Ru Hu Hu Ru 0.7Hu Ru 0.7Hu FAXY

47 b H p P p' P' R' O h' O kh k 6-15 k' a= h'h 0 O k3=0 k3 y h'+y p3 O m3 l / 3 1 p3 k3l3 (3h' 3l l 6 1 m3 k3l3 (6l (6h' 8l3 ) l (3l 3 4h') l 1 3 ) p 1, p p 1 ', p ' c H P P' R' P b ( p1' p1 p p3) P' bp ' R' k S ( h' l') A A A' ks ' kv =1/3 1/4 k V 3 ) ( l l3) l -47-

48 ks kv k0 30cm N k k 1.8k 0 B 3 / B =b k 0 E 0 / 30, =1 E0 8N 0% H ( h') b{ p1 ' c1 ' p1( h' c1 ) p ( h' l1 c ) m3 p3h' } b p ' c ' R'( l' h') M B ' M B ' q 1, q 4 4 M B ' b kv ( ) q q 1, W ( l l') U A k b W U V M B 4 ' kv b q 1 k V b sin cos ( ) sin A' b ( sin cos ) h' 4-3 ' -48-

49 JGS

50 3-8 1 P Fellenius P=F F0 / F sec T F F= S T R R R=P cos : : F0 F0 S T T W sin S Janbu P T S F sec cos F= S T Q R R=P cos cos F0 S T Q T= W tan S Q 50 L 1/33.6 /L L L L Bishop P=F T- S Fcos Bishop Janbu F P P F -50-

51 P Fellenius P= T F F0 F cos sin tan Janbu P F T SFcos cos sin tan '/n cos 1+tan tan F Bishop P=F T SFcos+ sin tan '/cos +sin tan /F m.0m 4.0m s

52 d d d n dkn KN n mm 1-5-

53 JGS Lsa Td Lsa Uba Lsa d ba La La Td fs da La A fs

54 hr 3mkP c k0 tan hr mk 1.5 ckpa k0 1 錆錆 -54-

56 -56-

3.300 m m m m m m 0 m m m 0 m 0 m m m he m T m 1.50 m N/ N

3.300 m m m m m m 0 m m m 0 m 0 m m m he m T m 1.50 m N/ N 3.300 m 0.500 m 0.300 m 0.300 m 0.300 m 0.500 m 0 m 1.000 m 2.000 m 0 m 0 m 0.300 m 0.300 m -0.200 he 0.400 m T 0.200 m 1.50 m 0.16 2 24.5 N/ 3 18.0 N/ 3 28.0 18.7 18.7 14.0 14.0 X(m) 1.000 2.000 20 Y(m)