路基回弹模量对路面结构力学性能影响的数值分析

目前我国路基设计参数取值较低,直接导致路基病害频繁发生。针对此种情况,通过大型有限元软件ANSYS建立了典型道路模型,对不同路基回弹模量(以下简称模量)下的路面结构力学性能进行计算分析;计算结果表明,适当提高目前路基设计指标,可以明显地优化路面结构的受力性能,最大限度降低道路病害发生的风险。

Numerical Analysis of Effect of Subgrade Resilience Modulus on Mechanical Properties of Pavement Structure

At present China’s subgrade design parameter is low, which directly leads to frequent occurrence of diseases in the subgrade. In view of this situation, this paper has established the typical road model by using large-scale finite element software ANSYS to perform calculation analysis for the mechanical properties of pavement structure under different road modulus (resilience modulus, hereinafter referred to as the modulus); the calculation results show that proper increase of the subgrade design parameters can significantly optimize the mechanical properties of the pavement structure, and minimize the disease risk of the road.