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(,044000),1.29,,,,,,,,TD73BStrengthReductionFEMAppliedforLandslideStabilityAnalysisYangShe-qiang(Shanxi6thGeologicalEngineeringExplorationTeam,YunchengShanxi044000)AbstractUsingstrengthreductionFEM,thecalculatedC,valueisless1.29timesthanthetestedvalue.Inthereduction,anewslidesurfaceisproducedontheconcentrationofshearingstreessandthisnewslidesurfaceiscalculatedasannewshearoutlets.Thethrustingforceiscomparedbetweenthenewslidesurfaceandtheoldone.Itiscalculatedthattherestainingwallisbrokenbecauseofthenewthrustingforce.Thecalculationresultsisconsistentwiththerealcondition.Keywordsstrengthreduction;FEM;landslide;coalminiog(),,,20m,160m,:III,,41,,1:0.75,,93.6m1mIII,,,3:2008-09-09:(1966-),,,,1987,IV,35m,1:1,,,Q2,,35cm,,1.44,0.99,,5m,1:1.5,1,IIII,;IV,,1m,2.3m,21F1DSP12533333353SUdO33333,0433333,,0,,,,,4,,,0312008516.5m,,,,,,,,1,c=21kPa,=12,92kNPm,77.1kPa,,,150kNPm,,c:,c,,,,cc;,,,,,,c=16.3kPa,=9.3,,1,,,,422.5kNPm,7.5,,98.5kNPm,,,,,,,2(1),,20cm3:7;,,(2)5m,1.5m,5m,,1.01.5m,1:0.75M7.5,,3(1),,IIII,IV,,,(2),,1.29(3),,,[1].()[E],2002.[2],,.[J].,2004,32(5):29-31.[3],.[J].,2004,23(19):3381-3388.[4],.[J].,2003,26(1):21-27.13120085