高等级公路沥青路面反射裂缝的分析与防治  

The analysis and prevention of reflective cracking in asphalt pavement of expreeway

作　　者：陈贵锋[1] 

机构地区：[1]广东冠粤路桥有限公司,广东广州510600

出　　处：《重庆交通学院学报》2003年第3期33-36,共4页Journal of Chongqing Jiaotong University

摘　　要：反射裂缝是旧水泥砼路面上沥青罩面和半刚性路面的常见病害,对道路的危害极大.笔者通过多个方面对高等级公路沥青路面反射裂缝的产生机理进行了深入的分析,包括温度型反射裂缝和荷载型反射裂缝;并从断裂力学的角度综述了反射裂缝在纵向、横向扩展的模式及其对路面的破坏.提出了多种防治措施与处理方法.The reflective cracking is one of the major damages of the asphalt overlay on old roads and semirigid pavement,which badly influence the performance of the pavement.In this paper,an analysis of the reflective cracking generation mechanism,including those caused by thermal shrinkage or loading fatigue,was carried out.Then its extending on latitude and longitude direction and its destruction are stated here on the basis of fracture mechanics.Finally,the paper launched out a few new procedures on how to prevent and cure the reflective cracking.

关 键 词：沥青路面 反射裂缝 形成机理 防治措施 

分 类 号：U416.217[交通运输工程—道路与铁道工程] U416.231