简介：Indesignphases,expansionjointsarerequiredtohavemovementcapacity,bearingcapacityforstaticanddynamicloading,watertight,lownoiseemissionandtrafficsafety.Onthebasisofthefactthatfailureduetodynamicloadingisthemainreasonfortheobserveddamages,attentionisfocusedonthebearingcapacityfordynamicloadinggovernedbyimpact,becauseitdiffersfromthestaticloading.Inthisstudy,fromtheviewpointofdurability,experimentalstudiesfordynamicbehaviorwereconductedforaluminiumalloyexpansionjointswithperforateddowels.Thevalidityoftheperforateddowelsagainsttrafficimpactloadingwasconfirmedbybothexperimentalandnumericalstudies.

简介：Consideringtheeffectsofparticlecrushingandintermediateprincipalstressonmaterialyieldingstrength,thespatialmobilizationplane(SMP)yieldingcriterionandstateparametermodelincludingageneralcriticalstatelineareselectedintheanalysisofcylindricalcavityexpansion.Meanwhile,combiningRowe'sflowruleandBolton'ssimplificationtostress-dilatancyrelationshiptoreflectsoilsheardilatancyandsofteningbehavior,thispaperanalyzestheproblemofcylindricalcavityexpansioni...