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近年,随着国家综合国力的提升,我国公路建设经历了历史性的跨越式发展,公路总里程已接近170万公里,其中高速公路总里程跃居世界第二。公路交通运输业的快速发展导致的车流量逐年递增,加上重载车辆超限超载,是造成公路使用寿命骤减的主要原因。为消除隐患,提高公路的行车安全和通行质量,不少已建公路均需要大修改造。
In recent years, with the improvement of overall national strength, the road construction in our country has undergone a historic leap-forward development. The total mileage of highways has reached nearly 1.7 million kilometers, of which the total mileage of highways ranks second in the world. The rapid traffic flow in the road transport industry leads to an increase in the traffic volume year by year. Coupled with the overloading and overloading of overloaded vehicles, this is the main reason for the sluggish highway service life. In order to eliminate hidden dangers and improve traffic safety and traffic quality, many of the roads under construction require overhaul.