为了定量表征冰雪天气沥青路面的抗滑性能，在气候实验室内模拟了结冰路面、积雪路面和积雪消融路面的状态，用摆式仪和T2GO摩擦系数测试仪分别测试了摆值（BPN）和摩擦系数，用维萨拉移动检测器检测了冰层、雪层和水膜的厚度；对于不同的冬季路面状态，基于引起抗滑性能衰变的主要因素提出了摩擦系数预测方法.结果表明：结冰路面的抗滑性能主要受冰层厚度的影响；积雪路面的抗滑性能受雪层内部层间滑动的影响；积雪消融过程中，雪层表面形成的薄冰层会使路面抗滑性能显著降低；结冰路面的摆值与摩擦系数存在较好的线性关系.

In order to quantitatively characterize the skid resistance performance of asphalt pavement in ice and snow weather， icy pavement， snow-covered pavement and snow-melting pavement were simulated in the climate laboratory. Pendulum friction tester and T2GO friction tester were used to obtain British pendulum number（BPN） and friction coefficient separately， and the Vaisala mobile detector was applied to detect the thickness of ice layer， snow layer and water film. For various pavement surface condition， the prediction methods of friction coefficient were proposed based on the main factors which causing the attenuation of skid resistance. The results show that the skid resistance performance of icy pavement is mainly affected by the ice layer thickness. The skid resistance performance of snow-covered pavement is affected by the interlayer sliding within the snow layer. During the snow-melting process， a thin ice layer， formed on the snow layer surface， causes a significant decrease in the skid resistance performance of the road surface. The BPN of icy pavement has a good linear relationship with friction coefficient.

U414

上海市科委项目（21DZ1201200）