山地城市快速路设计要点解析  

Analysis of Key Points of Expressway Design in Mountain Cities

作　　者：费歆 FEI Xin(Chongqing Urban Construction Land Development Co.Ltd.,Chongqing 400000,China)

机构地区：[1]重庆市城市建设土地发展有限责任公司,重庆400000

出　　处：《工程建设与设计》2022年第16期33-35,共3页Construction & Design for Engineering

摘　　要：城市快速路车辆运行速度快,对平纵设计线形指标要求高。为解决山地城市快速路沿线地形高差大、填挖方多、对生态环境影响大这一问题,论文分析了山地城市快速路总体设计的技术要点,并以实际工程为案例,详细介绍了在建设条件受限的情况下进行断面设计、出入口优化和立交形式选择的比选论证方法。Vehicles on urban expressways run fast, and have high requirements on the horizontal and vertical design alignment indicators.In order to solve the problems of large terrain height difference, large amount of filling and excavation, and great impact on the ecological environment along the expressway in mountain cities, this paper analyzes the technical points of the overall design of expressways in mountain cities, and takes the actual project as a case, introduces in detail the comparative demonstration methods of section design,entrance and exit optimization and interchange form selection under the circumstance of limited construction conditions.

关 键 词：山地城市 快速路 横断面 线形组合 出入口 设计要点 

分 类 号：U412.32[交通运输工程—道路与铁道工程]