我国的高速公路自20世纪80年代开始建设以来,从无到有,得到了迅速的发展。所谓高速公路,即为目前公路等级最高的道路形式,亦是典型的高等级道路。虽然路面形式多种多样,但基于沥青路面具有施工容易、快速开放交通、行车舒适、平整度好及修建成本较低、养护工程易于施工等特点,所以我国目前的高等级路面以沥青路面为主。沥青路面在长期的使用过程中,由于车辆的反复作用及气候的长年影响,必然会出现多种多样的损坏。同时,由于某些地区(如山西、内蒙等煤炭外运地区)难以避免的车辆超载运行及某些公路修建质量的不尽如人意,难 Since the construction of the expressway in our country began in the 1980s, it has developed rapidly from nothing. The so-called expressway is the highest grade of roads in the road at present and is also a typical high-grade road. Although pavement forms are varied, because of asphalt pavement has the characteristics of easy construction, quick and open traffic, comfortable driving, good flatness, low construction cost and easy maintenance of construction, so the current high grade pavement in our country is mainly asphalt pavement . Asphalt pavement in the long-term use of the process, due to the repeated effects of vehicles and the long-term effects of climate, will inevitably appear a variety of damage. At the same time, due to the inevitable overloading of vehicles and the unsatisfactory quality of some highway construction in some areas (such as the coal-outlying areas in Shanxi and Inner Mongolia), it is difficult