基于非饱和流的路面结构裂缝渗水分析

On analysis of crack leakage on pavement structure based on unsaturated flow

对带裂(接)缝的沥青路面和水泥混凝土路面结构进行了渗流模拟,模拟结果表明对于密级配基层,入渗到基层中的水分横向排出的速度缓慢。面层下设置排水基层并结合边缘排水系统能迅速排除层间及结构层内自由水,并有效地减少下渗到底基层的雨水裂缝入水导致结构层含水量大幅提高。

The paper has the seepage simulation on the asphalt pavement with cracks and concrete pavement,it is shown by the simulation that the speed of the horizontal seeped water in the basement turns to be slow on the dense gradation.The design of the drainage basement under the layer can discharge the free water between layers and structure layer by combining with the margin drainage system,so the method can reduce the water seeping into the cracks effectively,which can lead to the large water content.