控制卸荷對(duì)下臥地鐵隧道隆起影響的試驗(yàn)和研究.pdf

1、同濟(jì)大學(xué)土木工程學(xué)院碩士學(xué)位論文控制卸荷對(duì)下臥地鐵隧道隆起影響的試驗(yàn)和研究姓名：劉小建申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：隧道及地下建筑工程指導(dǎo)教師：賈堅(jiān)20080301AbstractWiththerapiddevelopmentofcitybuildingandrailtrafficbuilding，allincreasingnumberofprojectshavebeenbuiltinthevicinityofthesubwaytunnelM

2、orea11dmoredeepexcavationsarecarriedinducethedeformationofsoft。claythenIesultintheverticaldisplacementoftunnelsandthreatengreatlyonthesafetyoftl】nnelsConsequentlyhowtopredictandcontrolthedisplacementandhowtoprotecttheexi

3、stingtunnelsbecometheimportantengineeringissueBaseonJINCHANGSQUAREProject，laboratorytests，fieldmeasurementdataanalysisandnumericalsimulationareemployedtostudytheinfluenceofexcavationonunderlyingexistingtunnelsThenstudyth

4、emethodtopredictandcontrolthedisplacementoftunnels，whichCanbeThemaincontentsinclude：helpfulforthepracticalengineering1LaboratorytestandanalysisSpecialundisturbedsoilsamplesarecollected6omtheconstructionfield，loadingandun

5、loadingprocessesaresimulatedbyKotestinlaboratoryCriticaleffectdepthandultimateeffectdepthofunloadingresiliencearestudiedAndgetsomereasonableandreliablesoilparametersforengmeenngcalculationofdesign2UsingmeFiniteelementmet

6、hod，theeffectofexcavationandunloadingprocessonunderlyingexistingtunnelsisinvestigatedAcomparisonbetweenmeasuredfielddataandcalculationresultisperformedThenproposeareasonablypraIcticablemethodtopredicttheheaveoftheexistin