雙洞小凈距隧道設(shè)計(jì)、施工關(guān)鍵技術(shù)的應(yīng)用研究.pdf

1、河北工業(yè)大學(xué)碩士學(xué)位論文雙洞小凈距隧道設(shè)計(jì)、施工關(guān)鍵技術(shù)的應(yīng)用研究姓名：于曉彤申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：巖土工程指導(dǎo)教師：竇遠(yuǎn)明201011雙洞小凈距隧道設(shè)計(jì)、施工關(guān)鍵技術(shù)的應(yīng)用研究iiTHEAPPLIEDRESEARCHOFTHEDESIGNOFTWINTUNNELSWITHSMALLCLEARDISTANCETHEKEYTECHNOLOGIESOFCONSTRUCTIONABSTRACTInrecentyearsthenumberof

2、highwaytunnelincreasesunceasinglyduetothelimitofconstructionmethodgeologytopographyconditiontheintervaloftwintunnelsisnotabletoreachtherequestofthecodesoneedtousethesmallintervaltunnelmultiplearchtunnelotherspecialstruct

3、urefmsamongthemsmallintervaltunnelcanovercomeexistentqualityproblemoftwintunnelseffectivelytherearemetechnicalproblemsinsmallintervaltunneldesignconstructionfexample:theofreasonableclearintervalvaluereasonableconstructio

4、nmethodfdifferentlevelsofrockdifferentgeologicalterrainconditionsspecialwkingconditionsofsmallintervaltunnelthereinfcementmethodofcontainingrockthelongtermsafetyevaluationatconstructionprocessaftertunnelcompletionedsothe

5、methoughstudytosmallintervaltunnelisverynecessary.AccdingtoengineeringdataoftheHuamugousmallintervaltunnelprojectofXingtaiFenyangexpresswaythebasictheyoflithomechanicsthesmallintervaltunnelmodelisbuiltbyASGTS.Thetunnelex

6、cavationprocessofthreedifferentconstructionmethodissimulated.Throughcomparativeanalysistothehizontalverticaldisplacementprincipalstressdistributionplasticzonedistributionofsurroundingrockretainingstructureoftunnelthereas

7、onableconstructionmethodtothissmallintervaltunnelprojectisconfirmed.basedontheanalysisoftherelationshipbetweenprincipalstressdistributionplasticzonedistributionofsurroundingrockintervalvaluethereasonableintervalsuggested

8、valuesofthesmallintervaltunnelprojectisertainedbysimulatingtheexcavationprocessoftunnelunderdifferentintervalcondition.KEYWDS:smalldistancenumericalsimulationtunnelexcavationreasonablecleardistanceprimarystressplasticzon