離心機模型試驗，混凝土在砂土上的承載能力-畢業(yè)論文外文翻譯

1、1附錄附錄A外文文獻及其翻譯外文文獻及其翻譯JapaneseGeotechnicalSocietySpecialPublicationThe15thAsianRegionalConferenceonSoilMechanicsGeotechnicalEngineeringBearingcapacityofhybridsuctionfoundationonswithloadingdirectionviacentrifugemodeltest

2、JaeHyunKimi)SurinKimi)DongSooKimii)JunUngYouniii)DongJoonKimiv)SungHyunJeev)i)Ph.DStudentDepartmentofCivilEngineeringKAIST291DaehakRoYuseongGuDaejeon305701RepublicofKea.ii)ProfessDepartmentofCivilEngineeringKAIST291Daeha

3、kRoYuseongGuDaejeon305701RepublicofKea.iii)DirectHyundaiEngineeringConstructionCo.Ltd446912YonginsiRepublicofKea.iv)ChiefresearchengineerHyundaiEngineeringConstructionCo.Ltd446912YonginsiRepublicofKea.v)GeneralmanagerHyu

4、ndaiEngineeringConstructionCo.Ltd446912YonginsiRepublicofKea.ABSTRACTSuctioncaissoniswidelyusedtosupptoffshestructure.Howeverthistypeoffoundationmaynotprovidesufficientresistingcapacityeconomicallyunderexternalloads.Rece

5、ntlytogiveanincreasedcapacityonthefoundationhybridfoundationconceptwasproposedtosatisfyengineeringneedsaswellascostreductionofstructures.Hybridfoundationconceptiscombinationofskirtedmatsuctioncaisson(s).Suctioncaisson(s)

6、isfittedonthematfoundationintendedtoincreaseloadcapacity.Thispaperinvestigatesthebehaviofahybridsuctionfoundationinstalledinslayerfverticallateralloadsrespectively.Aseriesofcentrifugetesthavebeenconductedtoassesstheloadc

7、apacityofthehybridfoundationcomparedtothoseoftheconventionalsinglesuctioncaisson.Theprimarygoalofthisstudyistocomprehendtheeffectofthematcompartmentonfoundationbehaviunderloadingdirectionscrespondingbearingcapacity.Final

8、lyfeasibilityofthehybridfoundationfoffshefoundationwasconfirmed.3demsfoffshedevelopmentcombinedwiththecontinuedepletionofnaturalresourceshasresultedinoffshedevelopmentmovingbeyondtheshallowwatersintodeeperwatersharshenvi

9、ronments.Inperspectiveofthesesituationssuctioninducedfoundation(anch)isbeingconsideredtobethemostefficientrobustsolutionfsupptingoffshestructures.Inoffshethefoundationsareusuallyexposedbythevariouscombinationsofloadings.

10、Itmaycomefromcurrents(waves)expansioncontractionofpipelineslinkedtothestructuresduetothethermalchangesbefeaftertheoperationloadstransferredfrommoinglines.Typicallytheyappliedonthestructureinthehizontalfceswithrelativelys

11、mallverticalloadduetoalowselfweightofthestructure.Suctioncaissonarelargediametersteelcylinderswithopenendedatthebottom.Inthedesignperspectivelargediametersuctioncaissonisbelievedtoprovidehigherholdingcapacitythansmallone

12、tesisthighexternalloads.Howevermanufacturingtransptingcostsaswellasinstallationareincreasedinefficiently.Therefenewconceptofsuctioncaissontoincreasetheholdingcapacitieswhilereducingthecostisneeded.Recentlyhybridsuctionfo

13、undationthatcombinationofsuctioncaisson(s)withlargematfoundationtoincreaseholdingcapacitywhilereducingstructuralcosthasbeenconsidered.Insomecasematfoundationwithmultismallsuctioncaissonscalledhybridgroupsuctionfoundation

14、canbealternative(Fig.1).HybridfoundationconceptitsbenefitarewellsummarizedinGaudinetal.(2011)Bienenetal(2011).Manystudiesrelatedwithholdingcapacityofhybridfoundationundervariousloadingconditionsinhomogeneousclayhavebeeni

15、nvestigatedbyusingthenumericalsimulationtoalesserbythecentrifugemodeltest[Gaudinetal.(2011)Bienenetal.(20112012)Dimmocketal.(2013)Fuetal.(2014)].Howeverthebehaviourofthehybridfoundationwithloadingdirections(combinedloadi

16、ngs)intheslayerisnotyetwellunderstood.Inthispaperthebehaviourofhybridsuctionfoundationplacedonslayerunderuniaxialverticalhizontalloadingswasinvestigatedusingthecentrifugemodeltest.Thehybridsuctionfoundationwhichiscombina

17、tionofonesuctioncaissonthehopperoverthecontainernozzlesizefallingheight.TotalthreesoilmodelswithrelativedensityDr=60%werepreparedtoadepthof450mmperfmedsixmodeltestsinthesamples.Theresultingsoilmodelconditionsaretabulated

18、inTable2.Thepreparedsoilsweresaturatedat1gbydribblingthewaterfromthesoilsurfaceuptoabout30mmabovethesample.Thedegreeofsaturationwasenhancedbyprespinningthemodelupto70ginthecentrifugebefetheloadingtests.2CENTRIFUGEMODELTE