标题：Stress characteristic analysis of repaving asphalt pavement structure on old cement road
作者：Mao Honglu; Zhuang Peizhi; Zang Yanan; Yi Xiaoming
作者机构：[Mao Honglu; Zhuang Peizhi; Zang Yanan; Yi Xiaoming] Shandong Univ, Sch Civil Engn, Jinan 250061, Shandong, Peoples R China.
会议名称：Global Conference on Civil, Structural and Environmental Engineering / 3rd International Symp on Multi-field Coupling Theory of Rock and Soil Media and its Applications
会议日期：OCT 20-21, 2012
来源：ADVANCES IN INDUSTRIAL AND CIVIL ENGINEERING, PTS 1-4
关键词：Cement concrete pavement reconstruction; Rubblization; Numerical; analysis
摘要：To solve the early destruction problems occurred when overlaying asphalt pavement structure containing semi-rigid base on broken cement concrete pavement, finite element software is used to compare the stress characters between the repaving pavement and ordinary pavement, and analyze the repaving structures under different loads and different road transverse grade. It shows that the value of compressive stress at the top of base of repaving pavement is significantly higher than that of ordinary pavement, meanwhile, its value of tensile stress of base bottom is lower; the asphalt surface and new base top of repaving pavement need to bare a high value of shear stress and compressive stress under overload, so it's prone to splitting failure in the base. With the increase of transverse grade, both the shear stress difference of road surface and maximum vertical compressive at top of the base increase in a lower position, but the situation is opposite in the higher position.