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1、第37卷第2期岩土工程学报Vol.37No.22015年.2月ChineseJournalofGeotechnicalEngineeringFeb.2015DOI：10.11779/CJGE2015020171-Dconsolidationofasinglesoillayerwithdepth-dependentstressbymulti-stageloading1,234LUMeng-meng,XIEKang-he,WANGShan-yong(1.StateKeyLaboratoryforGeomechanicsandDeepUnderground
2、Engineering,ChinaUniversityofMining&Technology,Xuzhou221116,China;2.SchoolofMechanics&CivilEngineering,ChinaUniversityofMining&Technology,Xuzhou221116,China;3.ResearchCenterofCoastalandUrbanGeotechnicalEngineering,ZhejiangUniversity,Hangzhou310058,China;4.AustraliaResearchCounc
3、ilCentreofExcellenceforGeotechnicalScience&Engineering,UniversityofNewcastle,NSW2308,Australia)Abstract:Ingeotechnicalengineering,whenthestrengthofsoftsoilsisrelativelylow,arapidloadingratecanleadtogroundfailure.Inthissituation,amulti-stageloadingschemecanbeutilizedtoachievehig
4、hersoilstrengthbyconsolidatingthesoillayertoacertaindegreebeforeapplyingthenext,largerload(s).Additionally,thetotalstressinthesoillayerusuallyvaries,and,inmanycases,thisvariationisnotuniformwithdepth,forexample,whentheloadingisappliedwithinasmallareaoverathicksoillayer.Inthisst
5、udy,athorough,explicitanalyticalsolutionispresentedfortheconsolidationofasinglesoillayerusingamulti-stageloadingwithdepth-dependenttotalstress.Theparticularcaseofatwo-stageloadingschemeisselectedtoinvestigatetheconsolidationbehaviorofasoillayer.Finally,theconvergenceoftheanalyt
6、icalsolutionisassessedbycomparingthecalculatedresultsusingthevarioustermsoftheseriestofacilitatetheuseofthesolutionbyengineersandtoprovidesufficientaccuracy.Keywords:soillayer;one-dimensionalconsolidation;excessporewaterpressure;multi-stageloading;depth-dependentstress;analytic
7、alsolutionCLCNumber:TU43DocumentCode:AArticleID:1000–4548(2015)02–0330–07Biography:LUMeng-meng(1979–)，male,PhD,AssociateProfessor,PostgraduateSupervisor.Hehasengagedinthesoftsoilmechanicsandgroundimprovement.E-mail:lumm79@126.com.多级加载下附加应力沿深度变化的单层地基一维固结1,234卢萌盟，谢康和，王善勇（1.中国矿业大学
8、深部岩土力学与地下工程国家重点实验室，江苏徐州221116；2.中国矿业大学力学与建筑工程学院，江苏徐州22
