长寿命沥青混合料加铺层分析与抗疲劳层研究

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1、东南大学硕士学位论文长寿命沥青混合料加铺层分析与抗疲劳层研究姓名：毛志轶申请学位级别：硕士专业：道路与铁道工程指导教师：黄晓明20070607AbstractInrecentyears，somehighwayshavearrivedtotheirdesignlife，manypavementofthemneededreconstructed．Tosavethemaintenancecostofpavementafterreconstnlcte也thepavementdesignlifeshouldbeprolonged，a

2、ndtheserviceperformanceshouldbekeptwellforlongtime．Sothathowtoprolongthepavementdesignlifeasallurgentproblemmustbesettled．Theresearchbyforeignersshowsthatpavementserviceperformancecouldbelastedforlongtimewithoutstructuralmaintenancewhenperpetualpavementispaved．Ref

3、erredtotheresearchresultsofperpetualpavementinforeigncountries，combinedwithasphaltpavementoverlay,theperpetualpavementoverlayhasbeenanalyzedandthefatigue-resistlayerhasbeenresearched．Firstly,sometypicalstructuresofperpetualpavementhavebeenmodeledwi血ABAQUSfiniteele

4、mentanalysis．Theinfluenceofstressinoverlaysthatcausedbyoriginalasphaltpavementwhichservedasbaseorsubbaseinoverlayshasbeenanalyzed．Somemethodtodealwiththedifferentdiseaseinoriginalasphaltpavementhasbeenadvisedwhenpavingperpetualpavement．Thcimprovedstructureofoverla

5、ywhichimprovedbasedontherequestofconstructionhasbeenanalyzedthroughcalculatingstress，andtheapplicabilitythataddingdifferentkindsofbaseWasreceived．Seeondly，thedesignindexofasphaltpavementwhichusedin0111"countryandinforeignhavebeeninvestigated．Throughanalyzing．compa

6、ringandcombiningwitIItheperformancerequestofperpetualpavementandthecharacterofoverlays，thetensilestrainontheboRomofoverlaywasadoptedasdesignindexofperpetualpavementoverlaydesign．Thirdly,thedesignparameterofperpetualpavementoverlaydesignhasbeenresearched．Referredto

7、perpetualpavementresearchinginforeign，fatiguelimitWasadoptedasdesigncriteriontohightracfficroad．andfatigueequationtolowtrafficroad．ThefatigueequationusediIlfbrei舻wasconversed，whichWasthesanlewiththematerialandloadparameterinourcountry．Thefactorthatinfluenceddesign

8、indexhasbeenanalyzedbyusingorthogonalanalyticalmethod，andthebasicrequestofconstructiondesignWasreceived．Atthes,mnetime，thegradeoftrafficwhichusedinperpe