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| Research on the Track Laying Modes in North Section of Hohhot Metro Line 2 |
| ZHANG Ben |
| (China Railway Design Corporation, Tianjin 300251, China) |
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Abstract Abstract：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 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.
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Received: 15 November 2017
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2017, Vol. 34 
