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《随机地震作用下土石坝边坡的稳定性分析（stability analysis of earth rock dam slope under random earthquake）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、随机地震作用下土石坝边坡的稳定性分析（Stabilityanalysisofearthrockdamslopeunderrandomearthquake）Stabilityanalysisofearthrockdamslopeunderrandomearthquake;stabilityanalysisofearthrockdamslopeunderrandomearthquakeShaoLongtan,TangHongxiang,KongXianjing,HanGuocheng(Schoolofcivilengine
2、ering,DalianUniversityofTechnology)AbstractRandomgroundmotionisconsideredinthispaper,basedontheanalysismethodofdamseismicresponseanalysisandfiniteelementslopestabilityanalysismethodwasestablishedonthestabilityofearth-rockdamslopeunderrandomseismicexcitation,andt
3、hroughtheanalysisofnumericalverificationofdamdynamicmodeltestandthedynamicstabilityofsciencetoprovethattheslopeofearthrockfilldam.Themethodisreasonableandeffective.Keywordsstochasticseismicresponse;finiteelementmethod;slopestabilityanalysis;earthrockfilldam.This
4、paperwasreceivedinOctober13,1998,supportedbytheNationalNaturalScienceFoundationofchina.Thestabilityoftheslopehasnotbeenwellsolvedbytheearthquake,andtherearemanydefectsintheanalysisoftheseismicdynamicstabilityoftheslopeusingtheconventionallimitequilibriummethodan
5、dpseudostaticmethod.Thispaperconsidertherandomcharacteristicsoftheinputseismicloadresponseofdamrandomdynamicanalysis[1,2,3],[4,5]analysismethodusingfiniteelementmethodforslopestability,seismicdynamicstabilityanalysisofslopes.Thepaperdealswithhowtotakeintoaccount
6、thedynamicstress,anddemonstratesitsrationality.Throughthecalculationandanalysisoftwoexamplesofmodeldamandhighearthrockfilldam,itcanbeseenthatthemethodofthispaperisstillverysuccessful.1briefanalysismethod1.1stochasticseismicresponseanalysisInthispaper,theseismicp
7、rocessisconsideredasazeromeanGaussstationaryprocess.Accordingtothetheoryofrandomvibration,theinitialnon-stationaryresponseofahighdampingsystemunderstationarymotionexcitationisveryshortandcanbeneglectedapproximately.Thegeotechnicalstructurecanbeconsideredasahighd
8、ampingsystem,soitcanbeanalyzedbystationaryinputstationaryresponse.Inthecaseofstochasticloading,thegeneraltwo-dimensionalequivalentlinearequationforsoillayerresponseis
