1、ABSTRACTFocusingonthestaticsafetyofhighconcretegravitydamrocksystemandtheoptimizationdesignofitsconstructionprocesses，theintegratedanalysesmethodofthestabilitynumericalsimulationofevolutionofthetemperatureandthermalcreep

2、stressre舀meaffectedbylotsoffactors，coupledHManalytiealmethodaswellastheintelligentoptimizationdesignofconstructionprocessesarestudied，whichWerecomprehensivelyappliedtothesafetyassessmentanddesignoptimizationofThreeGorgeD

3、amThefollowingcontentsareincludedinthisthesis：(1)Basedonthesystematicalanalysesoflotsofsuccessfulengineeringcases，theprinciplesandmethodsofgeologicalconceptualizationandsimplificationofhighconcretegravitydamrocksystemare

4、provided；(2)Severalmajorstabilityanalysesmethodsandtheircorrespondingsafetystandardsarecomparedanddiscussed，andtheadvantagesandshortcomingsofeachmethodinthestabilityanalysesofconcretegravitydamundercomplicatedgeologicalc

5、onditionsarepresented；(3)BasedonthedetailedanalysesofthegeologicalandtestresultsofthefoundationrockoftheThreeGorgeDamwithpotentialinpersistentslidingpaths，geologicalconceptualizationandsimplificationofthedamrocksystemare

6、finishedMoreoverthepotentialslidingmodesfailuremechanismsandsafetyfactorsofthedamarestudiedusingintegrationofmultiplestabilityanalysesmethods(4)Theintegratedanalysesmethodofthestabilityofhighconcretegravitydamro呔systemun

7、dercomplicatedgeologicalconditionsaresuggested(5)Numericalsimulationmethodsofevolutionofthetemperatureandthermalcreepstressregimeofhighconcretegravitydamaffectedbylotsoffactorsarepresented，inwhichtheSSORPCGmethodwiththei

8、mprovediterationformulationandhi曲solvingspeedisused(DThedistributionandevolutionoftemperatureandthermalstressesintheleftguidewalldamsectionofThreeGorgeDamduringandafterthedamconstructionandthereservoirwaterfillingwereder

9、ivedusingtheaboveestablishednumericalsimulationmethod，then，theoverallevaluationofthermalstressesofthedamstructurewasmadeandsomesignificantsuggestionsforthedamstructuraldesignwereprovided(7)UsingFLACexplicitfinite—differe

10、ncemethod。HMcoupledeffectsonthestressanddisplacementregimeofno3leftpowerhousedamsectionarestudied(8)Combiningwithgeneticalgorithms，Artificialneuralnetworks，parallelcomputingmethodandnumericalsimulation，theintelligentopti

11、mizationmethodofconstructionprocessesandparametersareprovidedandappliedtotheleftguidewalldamsectionofThreeGorgeDamKeywords：hi【ghconcretegravitydamrocksystem，safetyconstructionprocessandparameterintegratedanalyses，numeric