江苏省高速公路组合式基层沥青路面性能后评估

Performance Evaluation of Asphalt Pavementwith Compound Base in Jiangsu Province Expressway

近年来,江苏省高速公路沥青路面主要以半刚性基层为主,结构类型比较单一,为使路面结构向多元化方向发展,寻找更加适合于江苏省的沥青路面结构,分析评价组合式基层沥青路面。主要根据近年来江苏省高速公路建设所铺筑的组合式基层路面,对其弯沉、破损率、车辙等路面性能指标进行分析。研究结果表明:目前各路段组合式基层弯沉、破损状况、路面整体车辙状况都相对较小。整体而言,能够满足现阶段江苏省高速公路交通量对路面承载能力的要求。

The most asphalt expressways in Jiangsu Province are with semi-rigid base,which is relatively simple. In order to find a more appropriate pavement structure for Jiangsu Province, this paper analyzed the compound base structure type. Based the recent expressway constructions in Jiangsu Province, this paper analyzed the pavement performance indexes such as deflections, breakage rates and rutting. The results showed that the deflection, breakage rate and the overall rutting conditions of the asphalt pavements with compound base are relatively low. In general, this structure is able to satisfy the current traffic capacity requirements of Jiangsu Province expressways.