交通信息与安全2016，Vol.34Issue(6)：54-59,82,7.DOI:10.3963/j.issn 1674-4861.2016.06.008
路面水膜厚度检验评价方法
An Inspection and Evaluation Method of Thickness of Water Film on Road Surface
摘要
Abstract
Water film on road surface after rainfall induces a decrease of friction between tire and road.The risk of skidding increases as thickness of water film increases.To evaluate the influences of water film on vehicle safety,an inspection and evaluation method is thus proposed.The rainfall intensity in geometric design process of roads is generally determined based on the data from Hainan Province,China.The standard of thickness of after-rain water film is suggested considering the traffic safety.A case study is conducted on the highway designs,the thickness of water film corresponding to different geometric designs are inspected and evaluated.Optimization strategies are provided for unsatisfied road sections.The results indicate that the rainfall intensity at peak hours (50 mm/h) is suitable for evaluating drainage design of road pavements.The desirable limit of the thickness of water film is 2.5 mm,while the maximum thickness is 4 mm.The limit length of drainage path is 60 m.关键词
交通安全/公路几何设计/路面水膜厚度/路面水流路径长度/降雨强度Key words
traffic safety/geometric design of roads/thickness of water film/length of drainage path/rainfall intensity分类
交通工程引用本文复制引用
罗京,刘建蓓,戈普塔,郭腾峰,邢欣欣..路面水膜厚度检验评价方法[J].交通信息与安全,2016,34(6):54-59,82,7.基金项目
海南省交通科技项目(JT20120898013)资助 （JT20120898013）
