EARTHQUKEINDUCEDDISPLACEMENTOFAMETROSUBWAYSTATIONTUNNELINLIQUEFIABLEGROUND.pdf
Earthquake-inducedliquefactionposesariskoffloatationofundergroundstructureslocatedinliquefiablesoildeposits.Thisfailurephenomenongenerallyoccurswhenthesoilliquefiesandlosesitsshearresistanceagainsttheupliftforcefromthebuoyancyoftheundergroundstructure,suchastunnelsandpipelines.Inthispaper,theseismicbehaviorofashallowrectangularmetrotunnelisinvestigatedusinganeffectivestressbasedsoil-watercouplingfiniteelementmethod.Thebehaviorofsoilsaredescribedbymeansofacyclicelasto-plasticconstitutivemodelinwhich,thestress-inducedanisotropy,thedensityandstructureofgroundcanbedescribedinaunifiedway.Theresultsshowedamatchingupliftresponseofthestructure,acceleration,andporepressureandgrounddisplacement.Specialemphasisisgiventoanalyzetheresultofexcessporewaterpressures,stresspath,acceleration,deformations.Thedisplacementofsoilaroundthestructurewasconfirmedtoresembleaflowmechanismfromtwosidesofthestructuretoitsinvertwhichisdifferentfromtheglobalcircularflowmechanismofcirculartunnels.
作者：BaoXiaohua XiaZhifan YeGuanlin FuYanbin
作者单位：DepartmentofCivilEngineering,ShenzhenUniversity,3688,NanhaiRoad,Shenzhen518060,ChniaDepartmentofCivilEngineering,NanchangInstituteofTechnology,Nanchang330099,ChniaDepartmentofCivilEngineering,ShanghaiJiaoTongUniversity,Shanghai200240,Chnia
母体文献：第八届中日盾构隧道技术交流会论文集
会议名称：第八届中日盾构隧道技术交流会
会议时间：2015年9月9日
会议地点：南京
主办单位：中国土木工程学会,中国岩石力学与工程学会,中国公路学会
语种：chi
分类号：
关键词：metrotunnel earthquake displacement numericalsimulation
在线出版日期：2018年11月22日
基金项目：
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