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我们知道,柔性路面结构主要由面层、基层、垫层组成。各层作用分别是: 面层是直接承受车轮荷载反复作用和自然因素影响的结构层,可由一层或数层(表面层、底面层和为加强层间结合或减少反射裂缝而设置的联结层)组成。 基层是设置在面层之下,并与面层一起将车轮荷载作用传布到土基的结构层,起主要承重作用,它可分为上基层和底基层。
We know that flexible pavement structure is mainly composed of surface layer, base layer and cushion layer. The functions of each layer are as follows: The surface layer is a structural layer that is directly subjected to the repeated actions of the wheel load and the natural factors. The surface layer can be formed by one or several layers (the surface layer, the bottom layer and the bonding layer provided for strengthening or reducing reflection cracks) )composition. The grassroots level is set under the surface layer, and together with the surface layer, the wheel load is distributed to the earth-based structural layer, which plays a major role in bearing the load. It can be divided into upper and lower basement layers.