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为了全面掌握冷再生基层沥青路面结构的厚度组合,在对现有的国内冷再生基层沥青路面结构厚度组合进行调研的基础上,将原路面结构作为路基,冷再生层作为基层,对车辆荷载作用下三层路面结构体系的力学响应进行了分析,采用面层底部拉应变和再生基层底部的拉应力为控制指标,研究了不同交通量条件下,冷再生基层沥青路面结构的厚度要求,提出了适应不同交通条件下的冷再生基层沥青路面结构厚度组合,并绘制了厚度诺模图,为冷再生基层沥青路面结构的设计提供理论指导。
In order to comprehensively grasp the thickness combination of asphalt pavement structure of cold reclaimed grassroots, based on the investigation on the thickness combination of the existing domestic asphalt pavement structure of cold reclaimed grassland, the original pavement structure is taken as subgrade and cold reclaimed layer as the base, The mechanical response of the pavement structure under the three layers is analyzed. The tensile stress at the bottom of the pavement and the tensile stress at the base of the reclaimed grass are used as control indexes to study the thickness requirements of asphalt pavement structure with cold reclaimed grass under different traffic conditions. It is suitable for the thickness combination of cold reclaimed grassroots asphalt pavement under different traffic conditions and the thickness nomograph is drawn to provide theoretical guidance for the design of the asphalt pavement structure of cold reclaimed grass.