【正文】 / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 yt?vTEE?v(R )PwT(R )E(R )?vPwT?u?(R )u??vPwTEu? k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0?vPwEu? yt(R ) yt yt ytMet h o d 1 1 :Co rreri aMet h o d 1 2 :Ri g o ro u s J an b uMet h o d 1 0 :Sarm a ( III )Met h o d 9 :Sarm a ( II )?vTEE?v(R )PwT(R )E(R )?v(R )PwT(R )E(R )?u?(R )u??(R )?v(R )PwT(R )E(R )u??(R ) k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0?v(R )PwT(R )E(R )u??(R ) yt(R ) yt(R ) yt(R ) yt(R )Met h o d 3 :Si m p l i fi ed J an b uMet h o d 4 :Co rp s o f E n g i n ee rsMet h o d 2 :Si m p l i fi ed Bi s h o pMet h o d 1 :O rd i n aryT k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 yt?vTEE?v(R)PwT(R)E(R)?vPwT?u?(R)u??vPwTEu? k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0?vPwEu? yt(R) yt yt ytMe t h o d 1 1 :Co rreri aMe t h o d 1 2 :Ri g o ro u s J an b uMe t h o d 1 0 :Sarm a ( III )Me t h o d 9 :Sarm a ( II )TE?v?vTE(R ) k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0 k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0TEE?vPw?vPwT?uu??v(R )PwT(R )E(R )u?(R )? k Pa 8 0 0 6 0 0 4 0 0 2 0 0 0 2 0 0k N / m 8 0 0 0 6 0 0 0 4 0 0 0 2 0 0 002 0 0 0 2 . 0 1 . 0 0 1 . 0 2 . 0?v(R )PwT(R )Eu??(R ) yt yt yt(R ) yt(R )Met h o d 7 :Sp en ce rMet h o d 8 :Mo rg en s t ern amp。 PriceSarma IISarma IIICorreriaRigorous JanbuFactor of safetyConventional RigorousF i g u re 4 . Co m p a ri s o n o f fa c t o rs o f s a fe t y( G e n e ra l s l i p s u rfa c e )0 . 911 . 11 . 21 . 3OrdinarySimplified BishopSimplified JanbuCorps of EngineersLowe amp。 E1, E2, E3 T0, T1, T2 。 ? ?? ?xxx????? ?22 ( 5 1 b )( 12) R igor ous Janbu M e th od ( J a n b u, 1954。 K a r a f i a t h , 19 60 )? ? ? ? ? ?? ? ? ?xExsxgxT ?????21 ( 3 8 )? ? ? ? ? ?? ?xsxgx ?????211 , ? ? 02?? x ( 3 9 a )? ?? ?xxx????? ?11 , ? ? 02?? ? x ( 3 9 b )( 6) Sar m a M e thod ( I ) ( Sa r m a , 19 79 )? ? ? ? ? ?? ? ? ? ? ? ? ?xhxcxxPxExTwv0v0??? ? ( 4 0 )? ? ? ?xxv01??? , ? ? ? ? ? ? ? ? ? ?xhxcxxPxwv0v02???? ? ( 4 1 a )? ?? ?xxx????? ?11 , ? ?? ?xxx????? ?22 ( 4 1 b ) ( 7 ) S pe n c e r M e th od ( S pe n c e r , 1967。 滑面正應(yīng)力修正 ? ? ? ? ? ?xxx 0??? ?? ? ba bxx ???1? ? ? ab axx ???2?? ? ? ? ? ?xxx 2211 ????? ??21 ?? ?11 ?? 12 ??VM、 HV組合： M組合： 安全系數(shù)求解 33222111111AFAAFAAFAsss?????????????????????????? ?? ( 1 4 a ) 33222111111BFBBFBBFBsss?????????????????????????? ?? ( 1 4 b ) 3221132211EEEDDDFs????????? ( 1 4 c )? ??? ? ????????????????????????????babasxbassdxcuFFdxFsdxFs ?????????111202101 ( 13 a ) ? ??? ? ???????????????????????????babasybassdxcusFFdxFsdxFs ?????????11111202101 ( 13 b ) ? ?? ?? ?????????babacbababasdxrdxrMdxrcudxrdxrF????????????????????202101202101 ( 1 3 c )3323322)h v m(3223223 ????????????????????????????????? pqqpqqtFs1211)hm(22q