基于改進遺傳算法和有限元法的壩基防滲排水優(yōu)化研究.pdf

1、分類號UDC密級學號04210525澎甥匆孽z塊彳碩士學位論文基于改進遺傳算法和有限元法的壩基防滲排水優(yōu)化研究學科名稱：學科門類：指導教師：申請日期：崔文娟水工結構工程工學柴軍瑞教授2007年3月西安理工大學碩士學位論文oPTlMIZATIONRESEARCHFORANTISEEPAGEDRAINAGESYSTEMOFDAMFOUNDATl0NBYTHEIMPRoVEDGENETICALGORlTHMANDTHEFINITEELEMEN

2、TMETHoDSubject：HydraulicStructureEngineeringDateofDefence：March，2007Author：CuiWenjuanAuthorsignature：??；州岍Advisor：PmfChaiJunruiSignature：已易毹J饑m，oAbstractAccordingtotheStatisticdataofpracticalengineeringsrmultitudeengineer

3、ingshaveintegratedantiseepageanddrainagetodisposeofdamseepageandaccordedwitllthedesignfundamental‘foreblockupandaftdredge’，SOtheanti—seepageanddrainagecertainlyshouldbeacombinationtosolvedamseepageThedesignparametersofgr

4、outinganddrainagecurtainarenumerous。inmanytimes，whichareconfirmedbyengineeringgeologyhydrologygeologyexperienceformulas，orreferringtotheexistedengineeringCasesFormiddleorlowdaminsimpleengineeringandhydrologygeologytheeng

5、ineeringrequirementsgenerallycallbesatisfied，butforhiglldamorcomplicatedgeologyothermethodsshouldbeadoptedtoanalyzeandcalculate，forimportantengineeringsrequirefieldteststoensuretheseparameters，SOit’Sdifficultteachthegoal

6、thatnotonlysafeandcredible，buteeunomicandrationalSoit’Sveryimportanttostudytheoptimizationoftheanti—seepgeanddrainageofdamfoundationAnti—seepagestructurescancontroltheseepagedischargeandreduceupliftpressureeffectivelyasw

7、ellashavesafetyandgooddurabilityFromtheviewofoptimizationdesign，thesafetyshouldbesatisfiedwithcertainrestrictioncondition，andtheeconomyshouldmakethecost(objectivefunction)leastBasedontheseepageanalysisofthedamfoundation，

8、simpleformulahasbeendeductedinthetextaccordingtotheexperienceformulaoftheexistedgroutcurtain，bypresentingallexampleofaconcretegravitydamoncommonrockfoundationThenCandrawthesimpleanddisplayexpressionaboutseepagedischarge，

9、upliftpressureindamfoundationandhydranlicgradientofthecurtainTheparametersarrayCallbegainedbythinkingtheminimumcostofthegroutingcurtainastheobjectivefunctionButit’SimpossibletodenotethecasesaccuratelywithsimpleformulasIn

10、ordertoaccordwithactualmodelandgettheseepagefieldindanafoundation，thetextadoptsfiniteelementmethodratherthanformulasTegarddamfonndationandcurtaingroutingasheterogeneousanisotropiccontinuousmedia，takingthehalfdepthofthecu