城区高速公路扩建工程中央分隔带护栏研究  

Research on Guardrails of Median Strips in Widening Projects of Urban Expressways

作　　者：周智海[1] 

机构地区：[1]重庆市勘测院,重庆400020

出　　处：《公路交通技术》2015年第2期127-133,共7页Technology of Highway and Transport

摘　　要：以水官高速公路扩建工程中央分隔带护栏改造设计为例,采用理论分析和方案对比相结合的方式,对城区高速公路扩建工程中央分隔带护栏防撞等级确定及型式选择方法进行研究。结果表明:中央分隔带护栏改造设计应结合规范要求和项目实际需求,分别确定路基段、桥梁段护栏防撞等级;应从景观效果、经济性、养护难度、绿化空间等多方面进行比选,确定最优的护栏型式。with design of transformation for guardrails of median strips in Shuiguan Expressway as an example,and in the mode of combining theoretical analysis and solution comparison,this paper researches determination of collision avoidance levels and type selection methods of guardrails of median strips in widening projects of urban expressways.The results show that design of transformation for guardrails of median strips should combine with the requirements of specifications and actual needs of projects to determine collision avoidance levels of guardrails at roadbed and bridge sections;and compare and select based on landscape effect,economy,maintenance difficulty and greening space,etc.so as to determine the optimal guardrail type.

关 键 词：城区高速公路 扩建 中央分隔带护栏 防撞等级 型式 

分 类 号：U412.366[交通运输工程—道路与铁道工程]