摘要
快速路是城市交通的"大动脉"。由于隧道快速路对城市环境的影响最小,越来越多的城市快速路采用了隧道的建设形式。现行道路设计规范对隧道快速路最大纵坡的取值存在一定的争议。提出了隧道快速路最大纵破取值应考虑的影响因素,并以江阴市澄杨路隧道为例进行分析。应从隧道交通流大小、车型比例、综合造价、交通安全等方面科学系统地分析后确定,可为工程实践提供参考。
Expressway is the artery of urban traffic. The construction form of tunnel is adopted for more and more urban expressways because of the minimum effect of tunnel expressway on the urban environment. There are some disputes about the value of the maximum longitudinal grade of tunnel expressway in the current road design codes. The influential factors on the value of the maximum longitudinal grade of tunnel expressway should be considered. Chengyang Road Tunnel in Jiangyin is analyzed. The traffic flow, vehicle type proportion, comprehensive cost and traffic safety of tunnel should be scientifically and systematically analyzed and then determined, which can be referred for the engineering practices.
出处
《城市道桥与防洪》
2020年第7期54-56,M0007,共4页
Urban Roads Bridges & Flood Control
关键词
城市快速路设计
最大纵坡
隧道
影响因素
design of urban expressway
maximum longitudinal grade
tunnel
influential factor
