农村公路薄层水泥混凝土路面板尺寸确定

Determination of Slab Size of Thin Cement Concrete Pavement for Country Highway

根据农村公路实际情况和试验路段条件,利用有限元法,计算分析了路面板平面尺寸对荷载应力的影响,确定了农村公路薄层水泥混凝土路面板的合理平面尺寸。研究表明,农村公路薄层水泥混凝土路面板的平面尺寸对板底最大拉应力有明显影响。利用荷载疲劳应力确定路面板的平面尺寸,与试验路观测分析的结果一致。

On the basis of the fact of the country highway and the condition of the test road, the influence of the slab size on the loading stress of pavement structure are analyzed by the Finite Element Method. The rational plane size of slab of the thin cement concrete pavement is determined. The results indicate that the slab size influences evidently the maximum tensile stress of the slah bottom. The plane size of slab determined by the loading fatigue stress is accordant with the analyzed results of the test road.