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基于荷载传递法的基桩承载特性研究.docx

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基于荷载传递法的基桩承载特性研究 Abstract Thispaperpresentsastudyontheloadtransfercharacteristicsofpilefoundationsbasedonloadtransfermethod.Theloadtransfermechanismofthepile-soilinterfaceisanalyzed,andthefactorsaffectingthepilebearingcapacityarediscussed.Basedontheoreticalanalysisandnumericalcalculation,theinteractionbetweenthepileandsoilsisconsideredintheloadtransferprocess,andtheloadtransfercurvesofdifferenttypesofpilefoundationsareobtained.Thestudyprovidesatheoreticalbasisforthedesignandanalysisofpilefoundationsinpractice. Introduction Pilefoundationisacommonfoundationtypeusedincivilengineering,whichcaneffectivelytransfertheloadsfromthesuperstructuretothedeeperandmorecompetentsoillayer.Thepilefoundationiswidelyusedinvariousengineeringprojects,suchasbridges,tallbuildings,dams,andindustrialplants.Theloadtransferprocessplaysacriticalroleinthepilefoundationdesignandanalysis.Basedontheloadtransfermechanism,variousmethodshavebeenproposedtoanalyzethebearingcapacityandsettlementofpilefoundations,suchasstaticloadtests,dynamicloadtests,andnumericalsimulations. Theloadtransfermethodisacommonapproachusedintheanalysisofpilefoundations.Itconsidersthepile-soilinteractionintheloadtransferprocessandprovidesacomprehensiveunderstandingofthebearingcapacityandsettlementofpilefoundations.Theloadtransfercurveisacriticalparameterintheloadtransfermethod,whichrevealsthedistributionofloadsamongthepileandsoilsalongthedepth.Basedontheloadtransfercurves,theultimatebearingcapacityandsettlementofpilefoundationscanbedetermined. LoadTransferMechanism Theloadtransfermechanismofpilefoundationsiscomplicatedduetothecomplexinteractionbetweenthepileandsoils.Thepile-soilinterfaceconsistsofthefrictionalresistanceandtheendbearingresistance.Thefrictionalresistancecomesfromtheadhesionandfrictionbetweenthesoilandthepilesurface,anditisproportionaltothenormalforceappliedonthepile.Theendbearingresistancecomesfromthesoildeformationandcompressionunderthepiletip,anditisproportionaltotheareaofthepiletipandthesoilresistance. Thesoi