柔性基层在衡德高速公路上的试验研究

Experimental Research of Flexible Base on Hengshui-Dezhou Expressway

通过柔性基层沥青路面、半刚性基层双层路面结构、半刚性基层三层路面结构车辙、裂缝等指标的对比分析,得出柔性基层可以减少或减缓裂缝的产生,并且抗车辙的能力并不比半刚性基层结构差的结论。同时也验证了三层沥青路面可以采用两层施工,各项指标均能达到要求,技术上合理。

This paper analyzes the track, crack etc. Index signs about three structures which are flexible base with asphalt-pavement, semi-rigid base with double-ply pavement and semi-rigid base with three-ply pavement. It proves that the flexible base can reduce or decelerate the crack and its ability of resisting tracks is not worse than the semi-rigid base. it also validates that three-ply pavement can adopt two layers construction. All index signs can be satisfied.