沥青路面压实力学特性的仿真分析

为突破常规数值方法基于连续性的理想假设,采用离散单元的方法,从细观力学角度对沥青路面碾压的过程进行了数值仿真。模拟了由压实载荷引起的混合料颗粒接触力场,分析了其受力的分布规律,从而揭示沥青路面的压实机理。从仿真结果来看,研究准确再现了压实轮和混合料颗粒相互作用性状的定性和定量结果,具有一定的理论与工程意义。

Simulating Mechanical Properties of Compaction on Asphalt Pavements

To break through the limit of continuous medium theory,some virtual compactions of asphalt pavement were demonstrated in microcosmic respect with discrete element method.The contact stress field and the vertical force distribution were simulated.On the basis of these,some compaction disciplinarians were analyzed.The research simulated the qualitative and quantitative interplay between the compaction roller with asphalt pavement,which is meaningful for the development of both compaction theory and practice.