摘要
研究目的:城市轨道交通项目在规划设计阶段会遇到外部边界条件发生变化的情况,结合项目特点科学合理地选择敷设方式,可使城市空间优化配置,最大程度地发挥轨道交通的综合效益。本文以呼和浩特地铁2号线为工程实例,深入分析比较线路北段高架敷设、局部高架敷设、地下浅埋敷设、地下盾构敷设4种不同敷设方式对使用功能及工程造价的影响,旨在为修改2号线北段线路敷设方式提供技术支撑。研究结论:(1)城市轨道交通线路敷设方式需结合城市规划、城市景观、环境影响、工程实施条件、车站使用功能、运营条件,并进行充分的经济技术比较后科学选择确定;(2)综合考虑工程条件与建设实施难易程度,本工程该段地下浅埋设站方案与地下盾构设站方案土建工程估算差异不明显;(3)推荐2号线北段线路敷设方式采用地下盾构设站方案;(4)本研究结论可对类似工程敷设方式的选择提供参考。
Research purposes： Urban mass transit project may encounter changes in the external boundary conditions during the planning and design phase. Combining with the characteristics of the project, according to the local condition, scientific and rational choice of track laying mode can optimize the allocation of urban space, also can maximize the comprehensive benefits of urban mass transit. Taking the engineering of Hohhot metro line 2 as an example, the influence of several different track laying modes on the use function and project cost is analyzed and compared in this paper, which include elevation laying mode, partial elevation laying mode, underground shallow laying mode and underground TBM laying mode, to provide technical support for modifying the laying mode in north section of metro line 2. Research conclusions： （ 1 ） Combining with overall planning of the city, the urban landscape, the environmental impact, the conditions of project implementation, the station use function, the operating conditions, urban mass transit track laying mode should be determined after full economic ＆ technical comparison and scientific selection. （2） Taking z into account the engineering conditions and the implementation difficulty, the difference of costs between underground shallow laying mode and underground TBM laying mode is not obvious in this project. （3） The north section of Hohhot metro line 2 is recommended to use the underground TBM laying mode. （4） The research result can provide reference for the selection of similar engineering track laying mode.
出处
《铁道工程学报》
EI
北大核心
2017年第12期77-82,共6页
Journal of Railway Engineering Society
关键词
地铁
线路设计
敷设方式
工程造价
urban mass transit
track line design
track laying mode
project costs
