公路路堤擋土墻失穩(wěn)機理及其加固治理研究.pdf

1、中南大學碩士學位論文公路路堤擋土墻失穩(wěn)機理及其加固治理研究姓名：唐佳申請學位級別：碩士專業(yè)：地質工程指導教師：彭振斌20070501ABSTRACTInllillycountryandmountainousareas，embankmentretainingwall，iSaveryconlmonretainingstructureAccordingtothein—situunstablesituationsofanheavyretaini

2、ngwallofoneacrossrailwaybridgeofNo107nationalhighway，loeatedinLuohecityHenanprovince，asystematicstudy011instablemechanismsofembankmentretainingwallunderdynamicsloadingconditionandapplicationofreinforcementtechniqueswasca

3、rriedthroughlyinthethesisandsomekeyresultsofwhich棚follows：1Basedonthepropertiesofhighwaydynamicsloadingthestudymethodaboutinstablemechanismofsoilmasscs$lopeunderhighwaydynamicsloadingWasbroughton21nstablemechanismsofemba

4、nkmentRetainingwallundertherandomhighwayloadingconditionwerestudiedThreeparameterswereintroducedintotheprogramofinstablemechanismanalysisCarryingthecriticalanti—slidingforceandantislidingmomentasanalyticalformulas，andtak

5、ingintothelimitequilibriumconditionofwallsoilsystemtwoequationswereeducedBynumericalsimulationandtheequationsthepracticalengineeringWasanalyzed11】eresultshowsthattheanglesofslidingwedgeofsubgradesoilalealmostinthesameval

6、uewiththedifferentmeasures3Consultedthemechanismofcementgrouting。andbyllscoftheMohrCoulombfailurecriteria(yieldfimetion)theyieldfunctions，whichundertheactiveandpassiveearthpressureconditionwerededuced4Takingthedifferenta

7、nalysismethods，themechanismoftheloadingtransferingandthedisplacementofanchorwffteexplored11扯formulationabouttelationbetweentheanchorsheardisplacementandtheanchoringpartlengthWnsdeducedaccordingwitlltheengineeringfacts5Ak

8、indofconstructiontechnologypart—reinforceingsteelmeshoftheshoteretemeshWaspresentedandputinuseafteranalysisngtheforceconditionoftheshotcretemesh6Byuscoftheproposaldesignparametersandthematerialsproperties，thenumericalana

9、lysismodelofPLAⅪSWasfoundedUsingthenumericalmodel。thestabilityvailations(displacementofsidedirection)ofreinforcementstYucturesweleanalyzedTheanalysisshowsthedifferenttypesofreinforcementstructurewereintegratedandformulat

10、edanorganicentirety，anditwasaveryeffectivemethodteinforcetheunstableretainingwallandsoilmassesslopeunderdynamicsloadingconditionKeyWords：HighwayengineeringEmbankmentRetainingwallDynamicsloadingInstablemechanismsReinforce