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《Dungca. 2005. Shaking table tests on the lateral response of a pile buried in liquefied sand》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、SoilDynamicsandEarthquakeEngineering26(2006)287–295www.elsevier.com/locate/soildynShakingtabletestsonthelateralresponseofapileburiedinliquefiedsanda,*,J.KuwanoabaaJ.R.Dungca,A.Takahashi,T.Saruwatari,J.Izawa,ccH.Suzuki,K.TokimatsuaDepartmentofCivilEngineering,TokyoInstituteofTec
2、hnology,JapanbPublicWorksandResearchInstitute,JapancDepartmentofArchitecture,TokyoInstituteofTechnology,JapanReceived30June2004;revised31December2004;accepted20February2005AbstractThispaperpresentsanexperimentalstudyonthelateralresistanceofapilesubjectedtoliquefaction-inducedl
3、ateralflow.Toobservethesoilsurroundingthepileduringliquefaction,itwasmodeledasaburiedcylinderthatcorrespondedtoasectionalmodeloftheprototypepileatacertaindepthinthesubsoil.Inordertocreatearealisticstressconditioninthemodelground,themodelwaspreparedinasealedcontainerandtheoverbu
4、rdenpressurewasappliedtothegroundsurfacebyarubberpressurebag.Themodelpilewasactuatedbackandforththroughrodsattachedoneachsidebyanelectro-hydraulicactuator.Thispaperfocusesonobservingthedeformationoftheliquefiedsoilsurroundingthepilewhenalargerelativedisplacementbetweenthepilean
5、dthesoilisinduced.Theloadingrateeffectonthelateralresistanceofthepileintheliquefiedsandandtheinfluenceoftherelativedensityarealsoinvestigated.Testresultsshowthatalargerresistanceismobilizedastheloadingratebecomeshigher.Whentheloadingrateishigher,thecylinderdisplacementrequiredfo
6、rthelateralresistancebecomessmaller.Ithasbeenalsoobservedthatastherelativedensityofthesoilincreases,dilatancyofthesoilinfrontofthepilealsoincreases.q2005PublishedbyElsevierLtd.Keywords:Liquefaction;Pile;Shakingtabletest1.IntroductionthePortofOaklandandthePortofSanFranciscoduri
7、ngthe1989LomaPrietaEarthquakeinUSA,althoughOneofthemajorsourcesofearthquake-induceddamagerecordedpeakhorizontalaccelerationsatthoselocationstoportfacilitiesisliquefactionofsaturatedloosesandywere0.29and0.15g,respectively.soils.ThistypeofsoilfailureoftenprevailsatwaterfrontsNea
8、rwaterfrontsmanypile-supportedstructures,andmarineenvironment
