渝宜高速铁路宜昌——恩施段线路走向及坡度方案研究  

Study on the Route and Slope Plan for the Yichang-Enshi Section of the Chongqing-Yichang High Speed Railway

作　　者：陈学贤[1] CHEN Xuexian(Shaanxi Railway and Underground Traffic Engineering Key Laboratory(FSDI),China Railway First Survey and Design Institute Group Ltd.,Xi’an 710043,Shaanxi,China)

机构地区：[1]中铁第一勘察设计院集团有限公司陕西省铁道及地下交通工程重点实验室,陕西西安710043

出　　处：《铁道运输与经济》2021年第6期98-103,共6页Railway Transport and Economy

基　　金：中铁第一勘察设计院集团科技研究开发计划课题(院科20-67)。

摘　　要：渝宜高速铁路宜昌—恩施段地质条件复杂,岩溶发育,经济据点少,环境敏感点遍布,是渝宜高速铁路建设的重点和难点。根据宜昌—恩施段地形、地质条件及经济据点分布特点,结合高速铁路大通道选线顺直性、安全性原则,从路网覆盖、岩溶地质、工程设置、环境敏感区影响、运营、工程投资等方面对线路走向进行研究,最终推荐经建始北方案为合理线路走向方案,同时对宜昌—恩施段困难地段进行坡度方案研究,推荐合理的最大坡度方案。合理确定宜昌—恩施段线路走向及坡度方案可以为建设安全可靠、技术可行、经济合理的高标准线路提供技术参考。The Yichang-Enshi section of the Chongqing-Yichang high speed railway has complex geological conditions, developed karsts, and few economic bases, which is full of environmentally sensitive areas. It is a major and difficult point in the construction of Chongqing-Yichang high speed railway. According to the topographical and geological conditions and distribution of economic bases in the Yichang-Enshi section, the straightforwardness and safety principles of corridor selection were analyzed for high speed railways. The railway routes were studied with regard to network coverage, karst geology, project setting and investment, impact on environmentally sensitive areas, and railway operation. Finally, the North Scheme passing Jianshi was recommended as a reasonable route plan. In addition, the slope plan of the difficult-to-operate section from Yichang to Enshi was studied, and a rational maximum slope plan was introduced. Reasonable route and slope plans for the Yichang-Enshi section can provide a technical reference for the construction of a safe, reliable, technically feasible, and economically reasonable high-standard line.

关 键 词：渝宜高速铁路 宜昌—恩施段 线路走向 最大坡度 方案比选 

分 类 号：U212.2[交通运输工程—道路与铁道工程] U212.3