19369.強降雨作用下土質(zhì)邊坡三維有限元仿真分析研究——以江西東津水電站為例

1、南昌大學碩士學位論文強降雨作用下土質(zhì)邊坡三維有限元仿真分析研究以江西東津水電站為例姓名：靳偉榮申請學位級別：碩士專業(yè)：水利水電工程指導教師：徐鎮(zhèn)凱楊志剛20121214ABSTRACT——————————————————————————————————————————————————————一ABSTRACTAsaresultoftheimpactimpactofhumanactivitiesandextremeclimatechang

2、e，thelandsidehasbecomeoneofthemajordisastertoaffectthelivesandpropertyofthesocietyandrainfallisoneofthemaincausesofthelandsideManyscholarshaveinvolvedinthishottopic，especiallyanalysisthecouplingbetweenseepagefieldandstre

3、ss6eldundertheconditionofrainfallslopeRationalanalysisofthecouplingbetweenseepagefieldandstressfieldonstabilityoflandslideisveryimportantAt丘rst，thispaperintroducestherainfallinfiltrationwhicheffectsontheslopestabilityand

4、thensummarizestheresearchresultswhichcomefromthescholarsofa11countriesonsaturatedandunsaturatedseepageandfluid—solidcouplingintherecentfiftyyearsThesecondthispapergivesabriefintroductionoflargefiniteelementsoftwarecommon

5、lyusedingeotechnicalengineeringunitsandtheconstitutivemodelAndthenderivationtheunitsaturatedandunsaturatedseepageequationfromthecontinuOUSequationAndthispaperdiscussestheboundaryconditionsandrainfallinfiltrationboundaryc

6、onditionsThethird，thispaperanalyzesthetheoreticalbasisaboutthecouplingbetweenseepagefieldandstressfield，andelaboratetheprincipleswhichcalculatethefluidstructureinteractioninthefiniteelementsoftwareTheforth，thispaperestab

7、lishesthethree—dimensionalfiniteelementmodel，andanalyzestheimpactofrainfallonsaturatedandunsaturatedsoilslopeunderthesituationwhichthereisnotonlytheseepagefieldbutalsothestressfieldTheimpactincludesslopesaturation(satura

8、tionline)，matrixsuction，porepressure，settlement，horizontaldisplacement，seepagevelocitystaineffect，thendrawstheinfluenceofslopestabilitywhichcauseofrainfallinfiltrationThemodelfromthispaperandtheobtainedresults1aythefound

9、ationforthesubsequentsloperainfallinfiltrationproblemresearchAndalsoprovideareferenceforfuturesimilarengineeringproblemsKeywords：Rainfallinfiltration；Fluid—structureinteraction；Porousmedia；SoilSlope；SeepageField；Stressfi