渝长厦铁路经长沙地区方案研究

Research on the Scheme of Chongqing-Changsha-Xiamen Railway through Changsha Area

研究目的:渝长厦铁路是连接重庆-长沙-厦门的一条高速铁路,本文就渝长厦铁路经长沙地区宏观走向方案进行比选,再根据线路宏观走向方案,进一步优选穿越长沙市区的局部方案。研究结论:(1)高速铁路引入地区方案需统筹铁路与城市、既有与规划的关系,既要满足铁路运输要求,还需融合城市人文景观与建设发展等需求,选择布局合理的线路方案;(2)结合长沙地区枢纽总图布置和长沙市城市总体规划等因素,从线路长度、对既有线影响与投资等角度进行比选,宏观走向推荐采用经机场、浏阳方案,进一步分析对城市布局影响、社会风险、工程难度及安全经济性,权衡各控制因素,确定了更能满足项目主要诉求的方案——沿北三环方案;(3)本研究成果充分应用于长赣铁路的勘察设计当中,与项目审查批复方案基本一致。

Research purposes:The Chongqing-Changsha-Xiamen Railway is a high-speed railway connecting Chongqing,Changsha and Xiamen.This paper compares and selects the macro alignment plan of the Chongqing-Changsha-Xiamen Railway passing through the Changsha area,and further selects the local plan for crossing the Changsha urban area based on the macro alignment plan of the line.Research conclusions:(1)The introduction of high-speed railway into a region needs to balance the relationship between railway and urban planning,existing and planned infrastructure,and not only needs to meet the requirements of railway transportation,but also needs to integrate human landscape and urban development,so as to select the reasonable route plans.(2)In conjunction with factors such as the layout of the hub in Changsha and the overall urban planning of Changsha,the route lengths,impact on existing lines and investment are compared.The scheme of passing through the airport and Liuyang is recommended for the macro alignment.Further analysis involves considerations such as the impact on urban layout,social risks,engineering complexity and cost-effectiveness,and the scheme along the Beisanhuan Road is determined,which can better meet the main project requirements.(3)The research results are fully applied in the survey and design of the Changsha-Ganzhou Railway,which are in line with the project approval and review plan.