基于动力问题的沥青路面车辙预估

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1、分类号1】4】6密级Y856G18单位代码】Q6】8学号03250207蠢座交通名挚硕士学位论文论文题目：基于动力问题的沥青路面车辙预估RuttingPredictionofAsphaltPavementOntheBasisofDynamic导师姓名、职称申请学位级别：专业名称：论文答辩日期：学位授予单位：研究生姓名：雷婷何兆益教授工学硕士道路与铁道工程2006年4月9日重庆交通大学答辩委员会主席评阅人2006年4月12日凌天清周进JABSTRACTAsphaltpavementisoneoftheprimarystructuresforexpresswayinChina．Therapi

2、ddevelopingtrafficinChinaiscausingmoletransportationbyroads．Theproportionofoverloadedandheavy·loadedvehiclesinthewholetrafficismcreasing．Channeledtrafficphenomenonisproducing．Allthesefactorscausemoreandmoreearlydamagetoasphaltpavement．Totheasphaltpavement，rottingphenomenonisoneoftheseriousfactors

3、whichcallharmthepavementandthetrafficsafe吼Therefore，themRingofasphaltpavementshouldbereasonablypredicted．Anditisnecessarytomakeaparticularstudyoftheadversaryimpactofasphaltpavementstructure，pavingmaterial，axleloadcycleandotherparametersonasphaltpavementrottingtoprovidetheoryfoundationforimpmvmgth

4、estmctureformsandthematerialsselectionintheasphaltpavementdesign．Thispaperdependsontheproject“Researchontheanti-mtpropertyoftheheavy—loadedtrafficflexiblebaseda叩haltpavementinexpressway．”whichisinitiatedbyHebeiprovinceCommunicationDepartment．Bymeansofinvestigatingthem仕mgphenomenonofdomesticexpres

5、sways，basedontheresultsofexistingstudies，thisresearchstarts丽ththedistortioncharacterofasphaltpavement，analysesthecausesofpavementrutting，andbrieflystudiesthemaininfluencesandcontrolparameters．Postedasimplifiedvehicledynamicloadingmodelwhichcausedbythesurfaceevenness．Thesestudiesmakeitpossibletofo

6、undaasphaltpavementrottingpredictmethodbasedonthetheoryofviscoelastoplastic，basictheoryofthedynamic，andFEM(FiniteElementMethod)．ThelargeanalysissottwareANSYSachievedthispredictionmethod．Thegoodagreementsbetweenthecalculationresultsandthetestingmaddataindicatenlattherottingpredictionmethodisreason

7、ableandreliable．Accordingtothea即haltpavementrottingpredictionmethodtoestimatetherottingdepth，analyzedtheinfluenceanddevelopmenttrendofpavementrottingdepthunderdifferenttirepressure，axleloadcycle，loadingtime，surfacelaye