加筋挡土墙有限填补区的性能

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1、GeotechGeolEng(2007)25:657–672DOI10.1007/s10706-007-9138-3ORIGINALPAPERBehaviorofReinforcedSoilRetainingWallWithLimitedFillZoneA.L.ShindeÆJ.N.MandalReceived:21December2006/Accepted:6July2007/Publishedonline:31July2007ÓSpringerScience+BusinessMediaB.V.2007AbstractS

2、everalexperimentsarecarriedouttoFrictionangleu(°)understandthedeformationbehaviorofreinforcedGeogridGGsoilretainingwallwithlimitedfillzonesunderInternalfrictionangleofsanduss(°)verticalsurchargestriploading.Testset-upalongLengthofanchorL(m)withalltheinstrumentation

3、sisdevelopedtocarryoutLinearvariabledisplacementLVDTtheexperiments.Paneldisplacementsandstraintransducers3distributionalonggeogridlayersareobserved.Effec-Maximumdryunitweightcdmax(kN/m)tivenessofthereinforcedsoilwallisalsoevaluatedMeanparticlesizeD50(mm)3usingageo

4、gridmaterial.FiniteelementanalysisisMinimumdryunitweightcdmin(kN/m)carriedoutusingcommercialsoftwarePLAXISNormalstiffnessEA(kN)version8fortheaboveproblemwithoutandwithPermeabilityinhorizontaldirectionkx(m/day)anchoringofreinforcedsoilretainingwallinthePermeability

5、inverticaldirectionky(m/day)limitedfillzone.TheresultsarecomparedandPlasticityindexIpreportedinthispresentpaper.Poisson’sratiot3Soilunitweightabovephreaticcunsat(kN/m)KeywordsReinforcedsoil
Retainingwall
level3LimitedzoneSoilunitweightbelowphreaticcsat(kN/m)levelAb

6、breviationSoil–rockinterfacefrictionangleusrr(°)2CohesionCref(kN/m)SpacingofanchorLspacing(m)DilationangleW(°)SpecificgravityGsDryunitweightofsandincbackfillUniformitycoefficientCu32backfill(kN/m)Young’smodulusE(kN/m)3Dryunitweightofsandincfound(kN/m)foundationEquival

7、entthicknessd(mm)1IntroductionA.L.Shinde(&)
J.N.MandalManyinvestigatorshavestudiedthereinforcedsoilDepartmentofCivilEngineering,IndianInstituteofTechnologyBombay,Powai,Mumbai400076,Indiawalls,i.e.,HausmanandLee(1978),Pintoande-mail:cejnm@iitb.ac.inCousens(1996),Je

8、well(1985),Lawsonetal.(2004),123658GeotechGeolEng(2007)25:657–672JuranandChristopher(1989),PalmeiraandLanzTable2Propertiesofvariousgeogrid(GG)materials(