摘要
车辙是渠化交通的高等级公路沥青路面的主要损坏类型之一,车辙的存在缩短了路面的使用寿命,降低了道路的服务质量。首先对车辙的影响因素进行了简要分析,通过路面温度场的观测进一步证实了车辙主要发生于路表下10 cm的范围内。同时,系统的总结了前人对沥青路面车辙机理的认识,认为车辙主要来源为沥青混凝土的剪切流动变形。力学分析的结果表明传统上对车辙产生的原因往往只归于材料因素,实际上不同路面结构在行车荷载作用下所产生的剪应力有很大差异,路面结构类型对车辙也有重要影响。
Rutting is one of the main damages in asphalt pavement. It can shorten the pavement life and depress the service quality. The paper firstly analyzes the factors, which affect rutting. By investing the roadrs temperature distribution, it can be more approved that rutting should mainly occur in 10 cm below surface. And the rutting mainly comes from shear distortion of asphalt concrete by summarizing lots of former reports systemically. The calculating results indicate that shear stress is different for different roads. Then it can be found rutting is affected not only by materials but also by pavement structures.
出处
《石油沥青》
2006年第4期1-7,共7页
Petroleum Asphalt
关键词
沥青路面
车辙
机理
剪切变形
路面结构
Asphalt pavement
Rutting
Mechanism
Distortion by shear stress
Pavement structure
