摘要
为给冬奥赛区山地公路线形安全性评价中关键参数的确定及仿真参数提供理论支撑,在室内模拟冬奥期间路面的不同温度、不同潮湿程度、0℃雪水混合物状态进行正交试验设计,用摆式仪测定普通路面、防滑路面分别与普通轮胎、雪地胎组合的附着系数.结果表明:在干燥路面状态下,轮胎、路面、温度对附着系数的影响程度为:轮胎>温度>路面.在低温路面状态下,轮胎、路面、水膜厚度对附着系数的影响程度为:路面>水膜厚度>轮胎.在不同温度、不同湿滑程度下,最优组合为刻槽水泥路面与雪地胎;在0℃雪水混合物状态下的最优组合为沥青SMA-16路面与雪地胎.
In order to provide theoretical support for the determination of key parameters and simulation parameters in the alignment safety evaluation of mountain roads in Winter Olympics,orthogonal test design was carried out by simulating the different temperatures,different humidity levels and 0℃snow-water mixture conditions of the pavement during Winter Olympics indoors.The adhesion coefficient of ordinary pavement and anti-skid pavement combined with ordinary tire and snow tire was measured by pendulum instrument.The research shows that the influence degree of tire,road surface and temperature on adhesion coefficient is as follows:tire>temperature>road surface.Under the condition of low temperature pavement,the influence degree of tire,pavement and water film thickness on adhesion coefficient is pavement>water film thickness>tire.Under different temperature and wet degree,the best combination is grooved cement pavement and snow tire.The optimal combination of asphalt SMA-16 pavement and snow tire at 0℃.
作者
张智勇
王晓燕
董子恩
ZHANG Zhiyong;WANG Xiaoyan;DONG Zien(College of Metropolitan Transportation, Beijing University of Technology, Beijing 100124, China)
出处
《武汉理工大学学报（交通科学与工程版）》
2020年第4期612-616,共5页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家重点基础研究发展计划项目资助(2018YFF0300305-01)。
关键词
冬奥会
山地公路
正交试验
摆式仪
附着系数
the winter Olympic Games
mountainous highway
orthogonal test
pendulum apparatus
adhesion coefficient
