基于结构组合特性的重载沥青路面结构适应性研究

Research on Applicability of Overload Asphalt Pavement Structure Based on Structural Combination Characteristics

研究干线公路在重载交通作用下沥青路面结构的力学响应,通过建立路面结构数值模型计算超载作用下沥青路面结构的受力特性,并对超载作用下路面结构的弯沉、拉应力、压应力以及剪应力的力学响应进行深入分析;在此基础上,详细研究了沥青路面结构层厚度对路面结构力学行为的影响,并提出适应于重载干线公路的合理结构层厚度。

In order to research the mechanical response of asphalt pavement structure of trunk highway under heavy traffic, the numerical model of pavement structure was established, and the mechanical characteristics of asphalt pavement structure under overload were studied. The mechanical response of deflection, tensile stress, compressive stress and shear stress under the effect of overloading was analyzed in-depth, based on which the effect of asphalt pavement layer＇s thickness on the mechanical behavior of road was studied. A reasonable thickness of the layer structure was recommended for overloaded roads.