蘇州地鐵一號線深基坑變形性狀研究.pdf

1、東南大學(xué)碩士學(xué)位論文蘇州地鐵一號線深基坑變形性狀研究姓名：婁承濱申請學(xué)位級別：碩士專業(yè)：土木工程；巖土工程指導(dǎo)教師：劉松玉20110307AbstractWiththerapiddevelopmentofurbanconstructionmanycitieshavetheriseofconstructionofthemetro，andalargenumberofdeepexcavationsalsohaveappearedStrengt

2、handstabilitycontroldesignwasappliedtotheretainingstructureindeepexcavationpreviouslyInmosteases，subwaylinespassthroughtheurbanRlefls晰Ⅱlmanylargeandllighbuildings，SOthedeformationcontrolandenvironmentalprotectionaretheke

3、ytotheSUCC它SSofexcavationTheconceptofdeformationcontroldesignforretainingstructureindeepexcavationhasbeenattachedmoreandmoreimportanceBasedonfmiteelementanalysisaswellasdataanalysisfromalargenumberofcasehistories，thisthe

4、sisevaluatedthedeformationbehaviorofdeepexcavationsinSuzhousubwayline1Themaincontributionsofthisthesisaredescribedinthefollowing：(1)The2DfiniteelementsimulationforthetypicalexcavationWasmadebyPLAXISsottwareThedeformation

5、patternofthesoilmassandsupportingsystemWasobtainedbycomparingbetweensimulationresultsandmeasureddata(2)Extensiveparametricstudieswereperformedby2DfiniteelementanalysisofdeepexcavationstoinvestigatetheirinfluenceOnexcavat

6、ioninduceddeformationsTheanalyzedparametersincludethethicknessofsoillayerthethicknessofthewall，theembeddeddepthofretainingstructure，ere(3)Adatabaseof23casehistoriesofdeepexcavationsinSuzhousubwayline1waspresentedDeformat

7、ionbehaviorofdeepexcavationsWasstatisticallyanalyzedbasedonthesedefromationdataTherangeandmeanvalueofthemaximumlateraldisplacementofretainingstructure，themaximumgroundsettlementandtheverticaldisplacementofthetopofwallwer

8、eproposedTheprecedingstatisticalindexeswerecomparedwiththoseofotherareasItdemonstratedtheinfluenceofthethicknessofsoillayerandthethicknessofthewalltothedeformationofexcavationfromastatisticalpointofviewKeywords：subwayde印