近十几年来,随着我国公路运输事业的发展,高等级公路的修建逐年增多,高等级公路柔性路面结构层次多,造价高,如何合理、经济地进行路面结构设计,对保证设计可靠并节省投资,具有非常重要的意义。现行路面设计方法一般都是根据设计者的经验确定结构组合,路面厚度计算往往以某一层作为设计层,其余结构层厚度均按设计者的经验并参照规范有关规定确定,这实际上把多 In recent ten years, with the development of road transport in our country, the construction of high-grade highways has increased year by year. The flexible pavement structure of high-grade highways has many levels and high cost. How to design the pavement structure reasonably and economically, Investment, has very important meanings. The current pavement design methods are generally based on the designer’s experience to determine the structural combination of pavement thickness calculation is often a layer as the design layer, the remaining structural layer thickness according to the designer’s experience and reference to the relevant provisions of the specification, which in fact more