采空区公路沥青路面结构层应力关键影响因素分析

以某地煤矿巷道造成的在建路面开裂处理为工程实例,以路面结构层容许弯拉应力作为控制指标,从采空区地表沉降的三大特征值倾斜、曲率和水平变形出发,通过有限元计算和分析,确定了路堤底部作用凸型沉降曲面为计算的主要模式，然后利用正交实验的方差分析原理,探讨了各特征值对路面结构层力学性能影响的显著程度,得出曲率的影响是最显著的.

Analysis of the key influencing factors of structure layer stress of asphalt pavement in goaf

 Based on the road construction project in a coal mine,  three major characteristic values  were selected, which included theslope, thecurvature, and the horizontal deformation as evaluation indicators. The main calculation model that imposed the convex settlement curve at the bottom of the embankment was determined according to the finite element calculation and analysis. Finally, was studied the impact of each characteristic valueon the mechanical properties of road structure layers was studied, and the conclusion showed that the curvature was the most significant factor.