高拱壩壩基開(kāi)挖對(duì)建基巖體工程特性影響的研究.pdf

1、成都理工大學(xué)碩士學(xué)位論文高拱壩壩基開(kāi)挖對(duì)建基巖體工程特性影響的研究姓名：陳正峰申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：巖土工程指導(dǎo)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