多雨区城市道路超高缓和段排水关键技术措施  

Key Technical Measures for Drainage at Super-Elevation Sections of Urban Roads in Rainy Areas

作　　者：宁山超 刘建国 NING Shan-chao;LIU Jian-guo(Guangdong Communication Planning&Design Institute Group Co.Ltd.,Guangzhou 510000,China;Shandong Provincial Communications Planning and Design Institute Group Co.Ltd.,Ji'nan 250000,China)

机构地区：[1]广东省交通规划设计研究院集团股份有限公司,广州510000 [2]山东省交通规划设计院集团有限公司,济南250000

出　　处：《工程建设与设计》2022年第22期56-59,共4页Construction & Design for Engineering

摘　　要：多雨区城市道路超高缓和段易出现排水不畅,影响行车安全。论文通过对超高缓和段最不利排水条件和各类组合坡度与路面排水关系的分析,建议超高缓和路段道路设计纵坡值不小于0.3%+超高渐变率Pb,当道路平面、纵断受限时,可采用增设交安设施、透水防滑铺装或截水沟等措施。Super-elevation sections of urban roads in rainy areas are prone to poor drainage,which affects driving safety.Through the analysis of the most unfavorable drainage conditions in the super-elevation sections and the relationship between various combined slopes and road drainage,it is recommended that the road design longitudinal slope shall not be less than 0.3%+super-elevation gradient rate Pb.When the road plane and longitudinal section are limited,measures such as additional traffic safety facilities,permeable anti-skid pavement or intercepting ditch can be adopted.

关 键 词：城市道路 超高缓和段 排水措施 

分 类 号：U412.33[交通运输工程—道路与铁道工程]