旧混凝土路面沥青混凝土加铺层结构研究及应用

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1、重庆交通大学硕士学位论文旧混凝土路面沥青混凝土加铺层结构研究及应用姓名：杨海平申请学位级别：硕士专业：交通运输工程指导教师：谢远光;周健20081101AbstractPavingasphaltpavementonmeoldconcretepavementisacommoneffectivetechniqueforpavementregeneration．IthaStheadvantagesofshortconstructionperiod，littlesideeffectsfortransportationandg

2、oodserviceafterregeneration．Soithasbeenthecommonmeasuretoimprovethepavement．performance，promotethecarryingcapacityandprolongtheservicedeadline．Butduringtheuseofoverlay,iteasilyemergesthereflectcrackinginasphaltconcretepavementbecauseoftheoriginalcrackincementco

3、ncrete，andthisbringsseverenegativeinfluencesonthelifeofpavement．Todaytherehasnomaturedesignofoverlaythoughhavinghadresearchandtestonthisaspectin0111"country．ItWasnecessaryandfeasibletostudythedesigntopreventreflectingcracksontheasphaltoverlmdontheoldcementconcr

4、etepavement．It’SnecessaryforUStoinvestigatethequestionfromthethreeaspects．(11Acorrectassessmentforpavementdistressandstructurecharacteristicofoldcementconcretepavementbeforeoverlayisthestickpointofpreventingreflectioncrackingandguaranteethesuccessofrehabilitati

5、on,whichrequiresunderstandinghowthestructurecharacteristicofoldpavementeffectsthestressandreflectioncrackingoftheasphaltoverlay．f2)theasphaltoverlaydesigninrehabilitationofoldcementconcretepavementAsphaltoverlaydesignnotonlyrelatesthedistress，structurecharacter

6、istic，trafficandenvironmentoftheoldpavement，butalsorequiresreasonablemechanicsmodel，correctmaterialparameter,effectivemeastlreofpreventingreflectioncracking，andSOon．Sothereisstillnotamatureddesignmethoduptonow．Thispaperintroducesseveralrelativelymatureddesignme

7、thodsandputsforwardsomeproblemswhichrequiremorestudy．Thispurposeistoacceleratethestudyofasphaltoverlaydesigninourcountry．(3)ThepreventionandcontrolofreflectioncrackingAcorrectassessmentforpavementdistressandstructurecharacteristicofoldcementconcretepavementbefo

8、reoverlayisthestickpointofpreventingreflectioncrackingandguaranteethesuccessofrehabilitation，whichrequiresunderstandinghowthestructurecharacteristicofoldpavementeffectsthest