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1 前 言随着我国经济的快速发展 ,汽车保有量猛增 ,交通流量大幅度提高 ,再加上超载车辆超过预计值 ,导致有的公路出现了早期病害 ,也使公路养护维修提前进入高峰。据权威统计资料显示 ,目前我国公路通车总里程已达到 180万km ,其中高速公路近 3万km。沥青路面占等级公路的 9
1 Introduction With the rapid economic development in our country, the car ownership has soared and the traffic flow has been greatly increased. Coupled with the fact that the overloaded vehicles exceed the expected value, some roads have suffered early diseases and the highway maintenance and repair ahead of the peak. According to authoritative statistics, at present, the total mileage of our country’s road traffic has reached 1.8 million km, of which, there are nearly 30,000 km of expressways. Asphalt pavement accounts for grade 9 of the highway