水泥混凝土路面碎石化后加铺沥青层设计方法研究

Study on Overlay Design Method of Cement Concrete Pavement after Rubblized

水泥混凝土路面碎石化后,加铺沥青面层,目前还没有相关的设计方法可以遵循。该文分析了国外破碎稳固后沥青加铺层结构设计方法,并根据我国现行的沥青路面设计规范评价碎石化层的承载能力,并以设计弯沉为控制指标的沥青加铺层设计方法,同时验算沥青层底拉应力。

The cement concrete pavement is overlaid by the asphalt coating after rebblized.At the present,there is no the relative design method to be followed.The article analyzes the design method of asphalt overlay structure after crushed and firmed at abroad,and based on the current asphalt pavement design standard in China,evaluates the bearing capacity of the rubblized coating,and checks the tensile stress at the bottom of asphalt coating by the asphalt overlay design method taking the design deflection as the control index.