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ID:36456247
大小:2.89 MB
页数:96页
时间:2019-05-10
《基于动力问题的沥青路面车辙预估》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
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
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