水泥混凝土路面抗滑性能变化规律探讨

Discussion About Anti-skid Changing-laws of Cement Concrete Pavement

路面应具有保障行车安全的功能,而这主要取决于路面的抗滑性能。反应路面抗滑能力的重要技术指标是路面的摩擦系数和构造深度。抗滑构造、路面湿度、行车速度和构造深度是影响摩擦系数的重要因素。通过测试多条水泥混凝土道路路面的摩擦系数和构造深度,经过数据分析研究得出,刻槽抗滑构造的路面抗滑稳定性高于拉毛构造,路面摩擦系数随速度增加线性下降;水泥混凝土道路在使用1-4 a内,高速行驶时的摩擦系数受路龄影响下降较多,而到7-10 a时,低速时的摩擦系数随路龄增加下降的较多;摩擦系数下降百分率受构造深度影响,随构造深度增大而增加,只有合适的构造深度才能有最好的抗滑性能。

The pavement should keep driving safe which basically lies on the ant-skid function, which reflected by the friction coefficient and texture depth. Skid texture, pavement humidity, speed and texture depth are the influencing factors. By detecting and studying the friction coefficient and texture depth of cement concrete pavement, it gives that the friction coefficient descends as the speed increase, and the descending percent accretions as the texture depth increase; it is an important task to maintain the skidding function during the life-span by studying that the friction life-span is much shorter than the road life.