城市轨道交通车辆基地场坪标高的确定

摘要

城市轨道交通车辆基地是城市轨道交通系统安全运营的重要基础设施,占地面积和工程投资巨大.车辆基地的场坪标高是工程设计的重要基础数据,直接影响工程建设的合理性和经济性.按照《地铁设计规范》有关条款规定,沿海或江河附近的车辆基地必须按照100年一遇的洪水位确定场坪标高.通过对北京地铁6号线一期工程车辆基地和武汉轨道交通1号线汉口北停车场工程的典型案例分析,对在具体工程设计中出现《地铁设计规范》条文未包含情况或按照条文要求而又明显不合理的现象,提出了确定场坪标高的原则性建议.%Rail vehicle base is a critical infrastructure in the safe operation system of rail transit and needs large area and huge investment. Ground elevation is an important data for the base design and has a direct impact on the rationality and economy of the base engineering. According to the relevant mandatory rules of "Code for Metro Design", the ground elevation of rail vehicle base that is located on the coastal areas or river banks must be determined by the standard against the flood once in a hundred years. Through an analysis of rail vehicle bases of Beijing Subway Line 6 and Wuhan Rail Transit Line 1 in the first engineering phase, especially aiming at the cases that are not included in "Code for Metro Design "and the unreasonable phenomenon in specific engineering design, some principle proposals are put forward.