浅谈交通荷载下层状道路系统动力响应分析

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1、中山大学硕士学位论文交通荷载下层状道路系统动力响应分析姓名：徐通申请学位级别：硕士专业：岩土工程指导教师：汤连生20090608交通荷载下层状道路系统动力响应分析StudiesonthedynamicresponseofLayeredroadsystemundertrafncloadingMajor：GeotechnicalEn季neeringName：XUTongSuper、，isor：Pro佗ssorTANGLian—shengABSTRACTInrecemyears，tra伍cisgrow证grapidlyiIlchina，alargeImll】【berofhighwayp

2、rojectshaVebeencompletedorundercorlstmctio巩thesettlememproblemofsubgradesoilcausedbytramcloadinghaSbecomeincreasedpronliIlem．Underlong-temltra衔cloadmg，theSubgradesoilwillhaveasignificantpemlanemde硒nnatio玛whichtrendtoappear1argersettlementanddi丘．eremialsettlementandwillgraduallya腩cttheperforma

3、nceanddurabilityofroadsur蠡lce．Thcroadsystemisaunifiedwhole，andalllayerscouplingtoeachother，tramcloadingistrans亿rredtothesubgradesoiLThickness，watercoment，materials，paraIneterssuchasshearmodulusofroadSystemwilldirectlya位ctthe鲥bilityofthelpaVementstmcture，趾dthentorenectthesettlememofsubgradesoi

4、LAtpresent，thedyIlamicstressandstrailldistributionmlesofthelayeredroadsystem11avenotbeensolVed，soifthedynamicrespoIlSeofthelayerroadSyStemcanbeamlyzedquamitatively，“mustproVideabaSis硒rthepreVentionarldtreatmentofroaddiseasesandthecalculationofthepermanentde南rmationofroadsyStemwhichareof伊eats远

5、nificance．Inthisp印er，thedataoffieldmonitoringandmodelteSft、Ⅳasusedtoanalyzedtheaff．ectionofVariousf．actors．ncoIlcludesthedyrlamicstressdiStributiondiscipl沁iIllayeredroadsystelILBaSedontheexistingelastic砌hilayertheories，thispaperuseMethodsoftransfermatri)【aJldVisco—elasticequatioIl，thedynarnic

6、respoIlSeoft11ree-dinlensionallayeredroadsystemwasobtairled．F抽allyweusedMatlabmatri)【numericalanalysissonw￡鹏tocalculate，锄dtheresuh、ⅣaScomparedwiththedataofmodeltest．BaLsedontheaIlalysisaboVe，t11ispaperusedFastLagrangianAnalysisofⅡl中山大学硕十学位论文continuaprogr锄(FLAC3D)compiledthepro伊锄fordynamicresp

7、oIlseofmuhi—layerroadsyStemundertramcload访g．Thisprogranlwasusedfort11ree—dimensionalnumericalamlysisofmuhi-layerroadSySterIl，thedistributiondiscipl证eofdynamicstressanddynamicdisplacememhasbeenanalyzed．Attheend，theresuhwasconlparewiththedataof