錨桿拉拔荷載傳遞機(jī)理及試驗(yàn)研究.pdf

1、西安科技大學(xué)碩士學(xué)位論文錨桿拉拔荷載傳遞機(jī)理及試驗(yàn)研究姓名：陳弦申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：巖土工程指導(dǎo)教師：谷拴成@Subject:AnalyticalExperimentalStudyonPulloutLoadTransferMechanismofAnchSpecialty:GeotechniqueName:ChenXian(Signature)Instruct:GuShuancheng(Signature)ABSTRACTAnchis

2、oneoftheeffectivemethodstoimprovethestabilityofgeotechnicalengineeringsolvethecomplexgeotechnicalengineeringproblems.Itiswidelyusedinslopetunnelminingfoundationditchsoon.Onsitepullouttestsisoneoftheimptantmethodstodetect

3、thequalityofanch.Properevaluationonthestatusofboltingsystemisgreatlysignificantfanchdesigninprojectsdomain.Basedonelasticplastictheeticalanalysispulloutteststheloadtransferfailureprocessofanchbolttheparametersofanchingla

4、yerinterfacewasdiscussedinthepaper.Getsomesignificantresults:Thefailuremodeanchagemechanismofboltanchmechanismhasbeenanalyzed.Thefailuremodereasonunderthedrawingloadwereelabated.Intheprocessofloadtransferthebondmechanism

5、mechanicalbehavioftwointerfaceswereanalyzed.Theexistingshearslipmodelbetweentheanchagetherockmasshasbeensummarized.BasedontheshearslipmodelofpewallwhichbuiltbyB.Benmokranetakingtheloadtransferfunctionmethodaelasticplasti

6、cmodelwassetupfthetheeticalsolutionoftheshearingstressdistributionlawalongthelengthdirection.Researchshowsthatanchsolidrockinterfacecanbedividedintotheresidualshearstageplasticsofteningstageelasticdefmationstagethediffer

7、entpositionofinterfacehasdifferentshearstressdistribution.thefactswhichinfluencetheanchingeffectwereanalyzedexactly.Bythefieldexperimentofboltinloessthestressdistributionalongtheanchagewasmeasured.Thetestresultsareingood

8、agreementwiththetheyanalysisresults.FtheboltofsupptinginNingtiaotaCoalMinethepullouttesthasbeentakenintheroadway.Bythetestwegetthewholeloaddisplacementcurveoftheboltwiththeresininthecoal.Basedontheacteristicpulloutcurvet