矿区重载路面摩擦测试及抗滑性能研究

为获取矿区重载路面摩擦以及抗滑性能的影响因素以及衰减规律，试验对测试路面进行不同时长的摩擦，并改变路面水膜厚度与路面温度，测试矿区内部二级沥青路面以及主干线沥青路面在不同条件下的动态摩擦系数。试验结果表明，随着摩擦时间的增加，构造深度先增加后减小，动态摩擦系数也随之先上升后下降，与构造深度之间存在一定动态相关性；相同条件下，随着水膜厚度的增加，2种道路的动态摩擦系数都会减小；仅改变路面温度的测试中，随着路面温度升高，2种道路的动态摩擦系数均呈现减小趋势。

Study on friction test and anti-skidding performance of heavy load pavement in mining area

In order to obtain the influencing factors and attenuation law of the friction and anti-skidding performance of the heavy load pavement in the mining area，the experiment was carried out on the test pavement for different durations of friction，and the water film thickness and the temperature of the pavement were changed to test the dynamic friction coefficient of the secondary asphalt pavement in the mine and the asphalt pavement in the main line under different conditions.The experimental results shows that with the increase of friction time，the structural depth increases first and then decreases，and the dynamic friction coefficient also increases first and then decreases，and there is a certain dynamic correlation with the structural depth. Under the same conditions，the dynamic friction coefficient of both roads will decrease with the increase of water film thickness. In the test of only changing the pavement temperature，the dynamic friction coefficient of the two roads decreases with the increase of the pavement temperature.