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坝体-库水-地基流固耦合有限元分析的地基模拟 Title:Dam-Reservoir-FoundationInteraction:AFiniteElementAnalysisofGroundSimulation Introduction: Dam-reservoir-foundationinteractionisacrucialaspectofdamengineeringasitdirectlyaffectsthesafetyandstabilityoftheentirestructure.Understandingthecomplexbehaviorofwaterflow,structuralresponse,andsoildeformationisessentialfordesigningandmaintainingsustainabledamsystems.Inthispaper,wepresentafiniteelementanalysis(FEA)oftheinteractionbetweenthedambody,reservoirwater,andthefoundationsoil,aimingtosimulatethebehaviorofthefoundationduringvariousloadingconditions. 1.Dam-Reservoir-FoundationInteraction: 1.1DamBody:Thedambodyservesasthemainbarriertoimpoundthereservoirwater.Itistypicallycomposedofcompactedsoil,concrete,oracombinationofbothmaterials.Thedambodyundergoesstressanddeformationduetothereservoirwaterpressureandexternalloads,affectingitsstabilityandoverallintegrity. 1.2ReservoirWater:Thehydrostaticpressureexertedbythereservoirwaterisacriticalfactorindamstability.Theinteractionbetweenthewaterandthedambodyinfluencesitsdeformationandstressdistribution.Thebehaviorofwaterflow,suchasseepageandwavemotion,alsoimpactsthefoundationsoil'sbehavior. 1.3FoundationSoil:Thefoundationsoilprovidessupporttothedambodyandhelpsdistributetheload.Soilproperties,suchasstrength,permeability,andcompressibility,playasignificantroleinthedam'soverallstability.Theinteractionbetweenthefoundationsoilandthedambodyaffectsthedeformationandsettlementofboth. 2.FiniteElementAnalysisofDam-Reservoir-FoundationInteraction: 2.1ModelingApproach:Tosimulatethecomplexbehaviorofthedam-reservoir-foundationsystem,a3Dfiniteelementmodelisdevelopedusingappropriatenumericalmethods.Thedambody,reservoirwater,andfoundationsoilarediscretizedintofiniteelements,representedbynodes,andinterconnectedbyvariouselements.Themodelcapturesthephysicalbehaviorofthesystemunderdifferentloadingandboundaryconditions. 2.2MaterialandBoundaryConditions:Themechanicalpropertiesofthedambody,reservoirwater,andfoundationsoilareessenti