沥青路面非线性瞬态温度场数值计算

The numerical stimulation of nonlinear temperature field of asphalt pavement

为了能准确地预估沥青路面温度场的分布规律,以达到有效地提高沥青路面结构设计的针对性、实现不同路面层次不同等级的沥青结合料的科学选取,进而减少沥青路面病害、延长其服务寿命的目的,本文利用有限元方法对沥青路面非线性瞬态温度场进行数值模拟研究,并将计算结果与实测结果进行了对比分析。结果表明,利用有限元方法研究沥青路面非线性瞬态温度场是有效可行的,具有较高的精度和实用性。

In order to accurately predicted pavement temperature distribution,and effectively improved the design pertinence of asphalt pavement,and achieved the scientific selection of different levels asphalt binder for corresponding pavement levels,thus reducing the pavement disease and extending its services life.In this paper,studied the asphalt pavement nonlinear transient temperature field by the method of finite element,and calculated and measured results were compared.The results showed that： studying the nonlinear transient temperature field of asphalt pavement by the method was effective and feasible,and with high precision and practicality.