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1、萬(wàn)方數(shù)據(jù)stresscausedbyshieldexcavationfaceadditionalthrustandfrictionbetweentheshellandthesurroundingsoilandthetailsoillOSS．3．a(chǎn)nalysissurfacegroundsubsidencefivestagesofvariationshieldtunnelexcavationbyuseoflongitudinalsettlementpointssubsidencecurvesgeneratedbythe
2、timingofconstructionwhentheshieldforward．ApplicationPeckformula，stochasticmediumtheory,usetheleastsquaresmethod，Powelloptimizationmethodinversionanalysislongitudinalsubsidenceformulaparameters．Andcalculatesshieldtunnelexcavationtransversesurfacesubsidencecurves
3、byuseingtheresults，findtheresultsconsistentwiththemeasuredvaluesobtained，confirmethecorrectnessoftheinversionparameters，andcanbeusedtoguidetheshieldconstruction．Considertheimpactofbuildingsstructuralrigiditywithinthescopeofthedistributionofsurfacesubsidencetrou
4、ghonthesurfacesubsidencetrough．UsethemodifiedPeckformulacalculatedbuildingsettlementCurvesandwiththecomparativeanalysisofPeckcalculatedsurfacesubsidencecurveswithengineeringexamples，reachconslusionthatThecalculateresultsofformulaPeckclosertothefieldmeasuredvalu
5、es．4．Analysisadditionaldistilbutionofsurroundingsoilanditsimpactonsurfacesubsidencbyapplicationlargegeneral—purposesoftwareABAOUSfiniteelementwhichestablishthree．dimensionalmodelshieldtunnelingstepexcavation，analysisandcontrasttheoreticalcalculationsandmeasured
6、valuestoguideconstruction．Keywords：subwaytunnel；shieldexcavation；additionalfield；surfacesubsidence；Peckformula；stochasticmediumtheory；parameterbackcalculation；numericalsimulationClassification：TU25IV萬(wàn)方數(shù)據(jù)目錄摘要???????????????????????????????IAbstract??????????????
7、?????????????????????????．．III目錄???????????????????????????????V1緒論????????????????????????????????????????．．11．1課題背景???????????????????????????11．2國(guó)內(nèi)外研究現(xiàn)狀????????????????????????21．2．1地鐵隧道盾構(gòu)施工所引起的地層變形規(guī)律研究現(xiàn)狀???????．21．3隧道盾構(gòu)施工對(duì)建筑物的影響研究現(xiàn)狀??????????????71．3．1盾構(gòu)施工對(duì)
8、鄰近建筑物影響機(jī)理???????????????．71．3．2盾構(gòu)施工對(duì)鄰近地表建(構(gòu))筑物影響研究現(xiàn)狀????????．81．3．3地表建(構(gòu))筑物保護(hù)措施研究現(xiàn)狀?????????????．91．4本文的主要研究?jī)?nèi)容及方法??????????????????．．101．4．1研究?jī)?nèi)容?????????????????????????lO1．
