深覆蓋層上面板堆石壩靜動(dòng)力特性及壩基地震液化研究.pdf

1、河海大學(xué)碩士學(xué)位論文深覆蓋層上面板堆石壩靜動(dòng)力特性及壩基地震液化研究姓名：李靜琪申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：水工結(jié)構(gòu)工程指導(dǎo)教師：沈振中20070401AbstractConcretefacerockfiUdams(CFRD)havegoodadaptabilityfordeformationandstabilityforseismicresistance，whichaleverysuitableforbuildingondeepoverb

2、urdenlayerintheearthquakeareaCombinedwiththeprojectof)(iekaCFRDlOCatingondeepoverburdenlayerandbyuseofthreedimensionalnonlinearfmiteelementmethodtothestaticanddynamicstateandtheliquefaetionpossibilityofpowdersandsoilinth

3、edamfoundationaredeeplystudiedandalSOthecorrespondingreinforcementmeasurestoputforword111emaincontentsareasfollo、郴：(1)AecordingtotheactualsituationofXiekaCFIm，thedamconstructionprocessandtheimpoundmentprocessaresimulated

4、indetailwiththe3Dnonlinearfiniteelemantmethodsandclassification10adingtechniquesn圮displacementandstressofthedambody，anti—seepagewall，concreteface，peripheraljoint，facingjointandSOonareobtainedItisshownthatthestressanddefo

5、rmationofthedamareconformedtothegenerallawandthenumericalvalueisintheacceptablerangethoughthegeologicengineeringconditionofthedarnlocationiscomplexandoverburdenlayeristhickItisprovedthatthedesignofthedamisrationalandfeas

6、ible(2)TheanalysismodelofearthquakerespOIISeandpermancntdeformationofdamisestablishedwiththe3DnonlinearFEMinconsideringtheXiekaprojectwiththecomplicatedterrainandgeologicengineeringconditionanddeepoverburdenlayerandthedi

7、stributionofpowdersandsoilindamfoundationn圯earthquakeresponsecharacteristicanditsgenerallawofbodyandiointareanalyzedindetailundertheeffectofdesignearthquake，includingaccelerationresponse，thedisplacementreaction，thestress

8、responseandSOonTheresultsindicatethattheearthquakeresponsecharacteristicsofdamareconformedtothegenerallawandthedamissafewhensubjectedto也ecarthquakeDesigncoderequirementsaresarisfied(3)Thegrowthmodelofporewaterpressureins

9、andsoilandtheresearchresultsofearthquakeliquefactionarestudiedaanalysisandapprisedcomputerprogramiSdevelopedwhichiSappliedforthecalculationofthepossibilityofearthquakeliquefactionofpowdersandsoilindamfoundationofXiekapro

10、jectIt’Sshownthattheearthquakeliquefactionoftheprojectdoesnothappenundertheeffectsofseismicintensityof7degrees，whilesomeliquefactionareasonthesurfaceofthedamfootandreservoirbottomappearundertheeffectsofseismicintensityof