两种增压式真空预压加固天津吹填粘土试验研究（英文）-豆柴文库

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两种增压式真空预压加固天津吹填粘土试验研究（英文）
Title:ExperimentalStudyonTwoTypesofPressurizedVacuumPreloadingReinforcementofTianjinBlown-inClay
Abstract:
Inrecentyears,preloadinghasbecomeaneffectivemethodforimprovingtheconsolidationandsettlementcharacteristicsofsoftsoils.Amongvariouspreloadingmethods,pressurizedvacuumpreloadinghasgainedattentionduetoitsefficiencyandeffectiveness.Thisresearchaimstoinvestigateandcomparetheperformanceoftwotypesofpressurizedvacuumpreloadingtechniques,namely,theexternalpressurizedvacuumpreloadingandinternalpressurizedvacuumpreloading,inreinforcingTianjinblown-inclay.
Keywords:pressurizedvacuumpreloading,externalpreloading,internalpreloading,clay,settlementimprovement
1.Introduction
Softsoils,suchasclay,posesignificantchallengesforconstructionprojectsduetotheirlowstrengthandhighcompressibility.Tomitigatethepotentialnegativeimpactsofsettlementonstructures,variousgroundimprovementtechniqueshavebeendeveloped.Preloadingisonesuchmethodthatreducesthetime-dependentsettlementofsoftsoils.Pressurizedvacuumpreloadingisaspecificapplicationofpreloadingthatinvolvesapplyingavacuumtothesoiltoenhanceconsolidationandacceleratesettlement.
2.LiteratureReview
Thissectionwillreviewtheexistingliteratureonpressurizedvacuumpreloadinganditsapplications.Additionally,previousstudiesontheuseofpressurizedvacuumpreloadinginclaysoilswillbeexamined,focusingonrelevantfindingsandmethodologies.
3.ExperimentalMethods
Themainobjectiveofthisresearchistocomparetheperformanceoftwotypesofpressurizedvacuumpreloadingtechniques,namely,externalandinternalpreloading.Theexperimentalsetupwillconsistoftwooedometercells,simulatingtheexternalandinternalpressurizedvacuumpreloadingconditions,respectively.TheclaysamplewillbeobtainedfromtheTianjinregion,knownforitsblown-inclaydeposit.Keyparameterssuchasvacuumpressure,preloadduration,andsoilmoisturecontentwillbecarefullycontrolledintheexperiments.
4.ResultsandDiscussion
Thissectionwillpresentandanalyzetheresultsobtainedfromtheexperimentalstudy.Keyparameters,suchass