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采用与我国路面结构设计时轴载等效换算类似的方法,按照抗滑指标衰减量等效的原则建立了沥青路面轴载抗滑等效换算公式,并提出了轴数系数和轮组系数的确定方法;基于轴载抗滑等效换算公式,提出了沥青路面抗滑寿命预测方法;以某高速公路为算例,开展不同轮压下SMA16的抗滑性能衰变试验,并借鉴沥青混合料疲劳方程的获得方法,建立了SMA16基于BPN值的抗滑疲劳方程,以此为基础,应用所提出的抗滑性能预测方法预测了该高速公路路面的抗滑寿命。结果表明,该轴载抗滑等效换算方法用于高速公路沥青路面抗滑性能分析是可行的。
Adopting the method similar to equivalent conversion of axle load in pavement structure design of our country, the equivalent slip resistance formula of asphalt pavement is established according to the principle of equivalent attenuation of anti-skid index, and the axle number coefficient and wheelset coefficient Based on an equivalent formula of axial load-bearing anti-skidding, the prediction method of asphalt pavement slip life is put forward. Taking an expressway as an example, the anti-sliding performance decay test of SMA16 under different wheel pressure is carried out. Based on this, the anti-skid fatigue equation of SMA16 based on BPN is established, and the proposed anti-skid performance prediction method is used to predict the anti-slip life of the highway pavement. The results show that it is feasible to calculate the anti-skid performance of the highway asphalt pavement with the equivalent slip resistance method.