39420148HighwayEngineeringVol.39No.4Aug.20142014—03—011968—。G41211.4100152.410001、。U416.223A1674—0610201404—0153—04PavementStructureDesignofLeiYiExpresswayOverhaulEngineeringWUChaofan1HUANGZhixiang2ZHANGJisen11.HunanCommunicationsResearchInstituteChangshaHunan410015China2.FreewayAdm-mistrationofHunanProvinceChangshaHunan410001ChinaAbstractThispaperintroducestheoriginalvarietyofLeiyiExpresswaypavementstructuretraf-ficflowandpavementdamage.Accordingtothepavementstructurespecifictrafficflowandaxleloaddisparityoftheroadusingatechnicalandeconomicalcomparisontheoriginalcontinuousreinforcedconcretepavementoverlayasphaltconcretepavementstructuretheoriginalordinarycementconcreteandreinforcedconcretepavementoverlaycontinuouslyreinforcedconcretecompositepavementmillingandoverlaysingleorbunkasphaltpavementlayerontheoriginalasphaltpavementtheoriginalasphaltpave-mentoverlaysituthermalregenerationaftersingleanddoublebituminoussurfacelayerstructure.Keywordsroadengineeringasphaltconcretepavementcementconcretepavementcontinu-ouslyreinforcedconcretepavementpavementoverhauldesignregeneration1G4“”。G4135.372km100km/hIV5IV627m23.5m2m。447.635km40.885km2.139km44.713km。1998112820011228。。2004~20129.2%9.3%。201218312veh/d31277pcu/d1。、39、。2013。1Figure1Averagetrafficvolumeofleiyiexpressway、、、。、、、。22.1①。②。③K1728+700~K1728+800K1731+850~K1732+000K1734+955K1726+880K1733+500~K1737+364。④。⑤10.6MPa、。2.2①、PCI、。②、。③。④、。⑤4.38%。⑥90%73.3%。⑦、6.276.35MPa。2.3①PCI60~80。②20%。③。④。⑤4.62%、21%、22%。⑥、。33.11。3.2a.。2003。4514G41Table1Pavementstructureofleiyiexpresswayoverhaulengineering18cm4%+18cm6%+1cm+28cmC35+2.5cmAC—10+18cm+1cmSBS+6cmAC—20C+PCR+4cmSBSSMA—1318cm4%+18cm6%+1cm+28cmC35①K1712+605~K1713+876+2.5cmAC—10+18cm+1cmSBS+6cmAC—20C+PCR+4cmSBSSMA—13②+10cmAC—30+PCR+6cmAC—20C+PCR+4cmSBSSMA—1318cm4%+18cm6%+1cm+28cmC35+2.5cmAC—10+18cm+1cmSBS+6cmAC—20C+PCR+4cmSBSSMA—1320cm4%+20cm5.5%+20cm5.5%+1cm+8cmAC—25Ⅰ+6cmAC—20Ⅰ+4cmAK—13①K1714+371~K1737+364AK—13+PCR+4cmSBSSMA—13③K1820+048~K1841+768AK—136cmAC—20C+PCR+4cmSBSSMA—13②K1714+371~K1737+364AK—13+PCR+6cmAC—20C+PCR+4cmSBSSMA—13④K1820+048~K1841+768AK—136cmAC—20C+PCR+6cmAC—20C+PCR+4cmSBSSMA—13K1712+605~K1713+876、。b.、。K1714+371~K1737+364K1820+048~K1841+7684cm10cm。K1714+371~K1737+36K1731+K1737+000、5cm+6cmAC-20C+4cmSMA—13K1714+371~K1737+364、5cm+4cmSMA—13。。K1820+048~K1841+768、6cmAC—20C+6cmAC—20C+4cmSBSSMA—13K1820+048~K1841+768、6cmAC—20C+4cmSBSSMA—13。。c.。5cm1cm4cmSMA—130.6cm。55139d.。①K1731+K1737+000、。8cm、+8cmAC—25+6cmAC—20C+4cmSMA—13+6cmAC—20C+4cmSMA—13。②、。③、、、。420135272013118。201425164pcu/d203346823pcu/d。“”。1.Z.2012.1.2.Z.2012.1.3JTGB01-2003S.4JTGH10-2009S.5.Z.6JTGD50-2006S.7JTGD40-2003S.8JTJ018-96.9JTGF41-2008S.10JTGD81-2006S櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧.12950mm/min。5SMA-13SMA-13SMA-13SMA-13。SMA-13SMA-13SMA-13。5Table5ColdbendtestresultsSMA-13SMA-13με2834279827875SMA-13、SMA-13SMA-13①XT-W3SMA-13SMA-1320℃。②SMA-13SMA-130.8%。③SMA-13。④SMA-1320℃SMA-13。1.DATJ.20107212-18.2JTGF40-2004S.3JTGE41-2011S.4.SBSJ.20123117-121.5.J.201234373-7582.6.EvothermJ.20118218-221.651