扁平大斷面高速公路隧道系統(tǒng)錨桿支護(hù)作用機(jī)理分析.pdf

1、北京交通大學(xué)碩士學(xué)位論文扁平大斷面高速公路隧道系統(tǒng)錨桿支護(hù)作用機(jī)理分析姓名：江波申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：地下工程指導(dǎo)教師：賀少輝20071201jE基鑾通太堂亟堂僮監(jiān)奎叢衛(wèi)I笪E!ABSTRACTABS’rRAC’rAtpresenLtheanchortechnologyhasalreadybecamethemosteconomicalandeffectivemethodstoenhancestabilityofthegeotechni

2、calengineeringandithasbeenalreadyappliedwidelyingeotechniealengineeringdomainlikeslopeengineeringtunnelengineeringandbuildingfoundationditchandSO01LHoweveritisstillnotcompletelyclearfortheanchoringmechanismofbolts。Thereh

3、asbeenadebate011theeffectofsystemrockboltsfortunnelstructureCurrentlytherearetwomajoracademicpC／Spcctives“oneisthatthes”temroekboltsarenollfunctionalforthestabilityoftunnelSOtheycanbelifted；anotheristhatthesystemrockbolt

4、sarethekeytothestabilityoftunnels，SOtheyshouldbes就up111edebatehasnotonlybroughtgreatdistresstothetunneldesignbutalsocausedconfusiontothetunnelconstruction11lepapersetsintheonsitemonitoringandmeasuringforthesecondphasepro

5、jectofZhangiiakouShijiazhuangexpresswaytunnelsFirsLthroughtheonsitemeasuringdataanalysisiteValu橢theactualeffectofthesystemrockboltsinthetunnelsystemunderdifferentrockconditionsThenwiththenumericalsimulationsoRwarefortheg

6、eotechnicalengineeringanalysisFLAC3D，itsimulatestheflatandlargecrosssectionexpresswaytunnelconstructionprocessindifferentrockconditionsandunderdifferentprogramsofthesystemrockboltsByanalysingthenumericalsimulationdataoft

7、herockdisplacementbeltaxialforcethestressinthetunnelprimarylinerthestressintunnelsecondarylinerandplasticzorleofsurroundingrockere，thisessayevaluatessystemrockbolts’effect，andanalyzesitsmechanismFinallybasedonananalysiso

8、ftheseresultstooptimizedesignparametersofsystemrockbeltsoftheflatandlargecrosssectionexpresswaytunnel，wecandrawreferenceforsimilartunnels’systemrockboltsdesignandconstructionKEYWORDS：FlatandLargeCrosssectionTunnel；Monito