浸水加筋土挡墙流固耦合分析

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1、重庆交通大学硕士学位论文浸水加筋土挡墙流固耦合分析姓名：邓方明申请学位级别：硕士专业：港口、海岸及近海工程指导教师：何光春20090401ABSTRACTThemethodofFastLagrangianAnalysisofContinua．．Three．．dimensional(hereaftercalledFLAC3D)isanewtypeofnumericalanalysisdevelopingandimprovinginrecentyears．Atthetheoreticalguidanceofthecouplingcalculationandanalysistoth

2、efloodingreinforcedearthretainingwallbytheFLAC3Dsoftware，takingreinforcedbankprotectionworksofBinjiangRoadbytheYangtzeRiver,YuzhongDistrictaspracticallocation，thisarticlecalculatedandanalyzedtheparametersofdifferentlevelsofrevetmentimpactedthereinforcedretainingwallintheconditionofsteadysee

3、page，andtheparametersofdifferentdecelerationimpacteditintheconditionofunsteadyseepagerespectively，andgottheconclusionthattheoutcomesofcalculatingandanalyzingareproximitytothepracticalworksnumericalnumberbycomparingthem．Themainachievementsofthisarticlearefollows：(1)Onthebasisofcalculationoff

4、luid-solidcouplinganalysisonthereinforcedearthretainingwallwiththemethodoffinitedifferenceinFLAC3D，themodelnotonlymatchtheconditionofthestress-strainrelationshipofsoilbodyandtheequationofequilibriumofforces，butalsomatchthebasicequationandtheterminalconditionofseepage．Compared晰ththefiniteele

5、mentmethod，finitedifferencemethodinFLAC3Disbetteratanalyzingthestabilityofreinforcedretainingwall，theproblemsofanalysis，seepageinthedeformationofthecouplingandSOon．(2)Thecalculationindicatesthat：ThegeogridunitofFLAC3Dcanproperlysimulatethecontactcharacteristicsbetweenthereinforcementandsoil

6、bodyofthefloodingreinforeedretainingwalleffectively．(3)Fromthecalculationandanalysisintheconditionofsteadyseepage，wecangetthat：Theriseofwaterlevelwasbeneficialtoreducethelateraldeformation，butthesheafingstressincrementdecreasedfirstandthenincreasedwhichmeansthestabilityalsoincreasefirstandt

7、hendecrease．(4)Throughthecalculationandanalysisintheconditionofunsteadyseepage，itconcludedthat：theunsteadyseepagefieldinfluencedthestabilityofthereinforcedretainingwall，andthereductionofspeedhigher,thestabilitypoorer；thehorizontalshiftofwallfacedistribut