水泥混凝土路面半刚性基层的适宜厚度

Suitable Thickness for Semi-rigid Base of Cement Concrete Pavement

半刚性基层是水泥混凝土路面常用的基层类型。通过计算不同道路等级、累计当量轴次、水泥混凝土面层和半刚性基层厚度条件下水泥混凝土路面的行车荷载疲劳应力和温度梯度疲劳应力,分析其变化规律,提出了水泥混凝土路面半刚性基层的适宜厚度,供工程设计人员参考。

Semi-rigid base is commonly used in PCC pavement,Fatigue stress of trailic load and temperature gradient on different road category,cumulative equivalent axle loads,and thickness of cement concrete surface and semi-rigid base are calculated.Suitable ihickncss for semi-rigid base of PCC is presentedfor reference.