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1、Subject:ThestudyoftheinfluenceofdeformationofsubwaytunnelshieldtunnelingonadjacentpilefoundationofbuildingSpecialty:MunicipalEngineeringName:LiXiaominl(Signature)Instructor:GuShuancheng(Signature)ABSTRACTWiththeadvanceofurbanization,thesubwayasafast,largecapacity
2、,socialgreenpublictransport,occupyanincreasinglyimportantpositioninthemodernmetropolisoftraffic.Groundmovementanddeformationcausedbytheconstructionofsubwayownbuildingsandfacilitiescannotbeignored.Sameasotherformsoftunnelexcavationmethod,theShieldTunnelingMethodwi
3、lldisturbthesurroundingrock,destructionoftheoriginalstressequilibrium。Linespassingthroughthebustlingdowntownarea,mostofthehigh-risebuildingwithpilefoundation,Buildingsadverselyaffectthedeformationandstressinthisprocess,bodyweightdistributiontobeclosetothebuilding
4、(structure).Therefore,toreducetheshieldconstructiononexistingpilefoundationisanimportantresearchtopics。Inthispaper,onthebasisofsumminguptheexistingresearch,theshieldlawcausesurfacedeformationcharacteristics,combinethecharacteristicsofshieldconstructionprocess,ela
5、borateanalysisofthemechanismcausingthesedeformation。Onthisbasis,thispaperanalyzestheresponseofthepilefoundationandtheupperstructuredeformationcausedbyshieldconstruction.Reasonableassumptions,theuseoflarge-scalefiniteelementsoftwareMidasGTSnumericalcalculationmode
6、l,thisarticleanalysesthefourconditionsofshieldconstructionontheexistingpilefoundation.Intheshieldconstructionmodelofnumericalexperiments,themodeltakesintoaccountwithoutspatiallocationofthepilefoundationandtunnelshieldconstruction,theconstructionphaseofthesimulati
7、on,thesimulationofgroutingmaterialsandgroutingpressure,soilliningandpilebasesoilcontactinteractionsimulation.Literatureandthecalculatedresultsofthemodelandtheactualprojectmonitoringresultswerecomparedtoverifythereasonablenessofthenumericalmodelofthesimulatedshiel
8、dconstruction.AnalysismethodandthemodelisappliedtotheTianjinMetroLineTuchengstationtothesouthtowerstationconstructionengineeringdesignoptimization。Keywords:Shi
