高拱壩壩基開挖對建基巖體工程特性影響的研究.pdf

1、成都理工大學碩士學位論文高拱壩壩基開挖對建基巖體工程特性影響的研究姓名：陳正峰申請學位級別：碩士專業(yè)：巖土工程指導教師：聶德新20070501ResearchesintheinfluenceoffoundationexcavationonengineeringpropertiesolIoundationrockin●●‘n—l’●higharchdamntroductionoftheAuthor：ChenZhengFeng，wasbor

2、nonMarchl2，1981UndertheguidanceofProfNieDexin，GraduatedfiomCollegeofEnvironmentandCivilEngineeringatChengduUniversityofTechnologyABSTRACTBedrockbodystructure，cragbodyquality，deformationmodulusandintensityparametersoffoun

3、dationrockwerealwaysaffectedbyfoundationexcavationduringtheprocessoffoundationexcavationinhydroelectricpowerstationhigharchdamTheblastimpactloadcausedbythedambaseexcavationcouldproduceacertainscopeblastingrelaxationzonei

4、nthecragbodyOntheotherhandtheinfluenceonrockengineeringpropertieswerelargewhichproducedbyearthstressredistribution，especiallythestressconcentrationproducedbyriverfoundationexcavationonthehighearthstresszoneThisarticletak

5、ingfoundationexcavationinLaxiwahydroelectricpowerstationforexample，throughthereexamineofdaminfrastructurebase，studiedtheimpactsoffoundationexcavationinhigharchdamtoengineeringpropertiesoffoundationrockByinvestigationofcr

6、agbodystructure，cragbodyqualitycragbodydistortionmodel，blastingrelaxationandintensityparameterofthefoundationrockauthorsyntheticallyappraisedtheextentoftheinfluenceoffoundationexcavationandthedeterminantfactorstotheinflu

7、enceTheeffectsoffoundationexcavationincragbodystructuremainlyexpressedascragbodycrevasseyawningduetointensedemolitionimpact，producingnewblastingcrevasse，reducingthebodywavevelocityatalargescaleandthecompletecoefficientMo

8、reoverduringexcavatinginconstructiontheeliminationofcragbodyreducedcarries，causedasnappingbacktodistorttothespatialsurface，produceddischargecrevassesasaresultofreducingtheearthstressofthebedrockbodyanddecreasedthewavevel

9、ocityandthecompletecoefficientFurthermore，theextentoftheinfluencegraduallydecreasedtothemountainInthearticle，remarkablereductionincragbodywavevelocitygeneratedbyblastingwasconsideredtobethemaincharacterfordeducingablasti

10、ngrelaxationzoneinexistenceduringdamshoulderexcavationTodeterminetheinfluenceoffoundationexcavationonfoundationrockqualitythewavevelocityandthecompletecoefficientweremadeaschiefparametersandthespaceofthecrevasseastheassi

11、stantparameterwhenwavevelocitywasabsentThedeterminationoftheinfluenceoffoundationexcavationondeformationmodulusandintensityparameteroffoundationrockwasonthebasisofwavevelocityandscenedeformationexperimentRelatedequations