呷爬滑坡稳定性的FLAC-3D数值模拟分析-张雪东

24Vol.241200310RockandSoilMechanicsOct.2003No.402721172002No.2002839197710007598(2003)011304FLAC-3D1122231.1300262.6100593.067600FLAC3DFLAC3DTU433TB115AFLAC-3DnumericalsimulationanalysisofstabilityofGapalandslideZHANGXue-dong1CHENJian-ping1HUANGRun-qiu2YANMing2LIANHong-fang2DINGHai-jun31.CollegeofConstructionEngineering,JilinUniversity,Changchun130026,China2.ChengduUniversityoftechnology,Chengdu610059,China3.LongxumenHeadSchool,Kuancheng,Chengde,Hebei067600,ChinaAbstract:ThegeneralsituationofGapalandslideisintroducedfirstlyandthenitsslidingmechanismisanalyzed.Basedonthementionedabove,thestabilityofGapalandslideisstudiedbymeansofFLAC-3Dnumericalsimulationundernaturalsituationandimpoundingconditions.Builtnumericalcalculationmodelandchosenrationalcalculationparameters,thenfiguresofsystem’sunbalancingforceevolutioncurveareobtainedthroughsimulation.Furthermore,calculationproductionfiguresaresyntheticallyanalyzed;thenthestabilitiesoflandslideundernaturalsituationandimpoundingconditionsareevaluated.Finally,anessentialproposalisgiventomanagethelandslideinthenearfuture.Keywords:landslidestabilitymechanismanalysisFLAC-3D10.45km213106m329.2kmN12E35N20E/SE40T32-3zN62W1655m2120m465m900m500m0.45km260100m60m13106m3122003G1G2626mVp500650m/s35100mVp17002400m/s254055N15E/SE2213m8m219891m30cm3N1030E/SE40N1525E/NW2030[1]4FLAC3D4.1FLAC-3DFLAC-3D[2]FastLagrangianAnalysisofContinualin3DimensionsMascaConsultingGroupInc.[3]FLAC-3D2.0[2]4.2FLAC-3D12,Z950mX1040mY1108m2308m[4]11411T32-3z13I3IIII()[5]FLAC3D[15]14.3FLAC-3D1Table1Mechanicalparametersofmaterialsincalculationmodel20003460001700m1750m1800m18501880m1800mGroupC/MPa/g/MNm-3ts/MPa/MPa/MPa/ms-11T32-3z1400.0270.83937.017246.381.0e-123I0.005260.0200.005259.26777.786e-95II0.005240.0200.005222.22666.676e-97III0.005220.0200.005185.19555.566e-94I0.06340.0250.05606.061481.483e-46II0.06320.0250.05568.181388.893e-48III0.06300.0250.05530.301296.303e-490.04300.0220.04454.551111.114e-4100.06320.0250.05568.181388.893e-4110.06340.0250.05606.061481.483e-4120.04300.0220.04454.551111.114e-411520031880m51700m1800mIIIII1700mIII1760m1800mII1900m5FLAC-3D123I1750m1800m1880m4IIIII1700mIII1800mII[1].[M].:,1981.[2]ItascaConsulitingGroup.Inc.FLAC-3DFastLagrangianAnalysisofContinualin3Demensions,Version2.0,User;sManual[Z].U.S.A:[s.n.].1997.[3].[M].1992.[4].[M].1990.[5].[M].1990.[6].FLAC-3D[J].2001201610.[7].[M].2002.[8].[M].1998.116