市域线明线段区间合理线间距选取方法研究

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Abstract Research purposes: The regional railway is mainly laid in the form of ground and elevated, and the line spacing will directly affect the line design, bridge deck layout, engineering investment, etc. There is a significant difference in the selection of line spacing in domestic regional railways, and the existing research lacks strong guidance on the working conditions of building (structure) installation between lines. This article conducts research on reasonable line spacing by setting selection principles, analyzing influencing factors, determining typical operating conditions, conducting economic and technological comparisons, and providing a set of highly applicable selection methods.
Research conclusions: (1) This paper proposes a method for determining the reasonable line spacing of regional railways: Firstly, determining the minimum line spacing of straight sections based on the vehicle model. Secondly, determining the reasonable spacing between straight lines based on the buildings, equipment, and beam types. Thirdly, adjusting the reasonable line spacing based on curve widening and construction methods. (2) Suggest adjusting the minimum line spacing of B-type vehicles to 3.4~3.6 m based on the limit requirements. (3) From the perspective of controlling investment, it is not advisable to set up buildings or structures between lines; From an overall functional perspective, evacuation routes should be set up between lines, and overhead contact system pillars should be set on both sides. (4) The values and curve radius range for widening the line spacing in curved sections have been determined for various vehicle models. (5) The research results can provide useful references for the selection of regional railway line spacing.

Key words： regional railway reasonable line spacing curve widening evacuation platform

Received: 26 July 2024

PACS:

U231

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	Articles by authors
	LIU Daotong
	FAN Xiaozhen
	WANG Shuwei
	ZHU Xiaohai

Cite this article:

LIU Daotong,FAN Xiaozhen,WANG Shuwei, et al. Research on the Selection Method of Reasonable Line Spacing in Open Line Section of Regional Railway[J]. Journal of Railway Engineering Society, 2024, 41(10): 97-103.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2024/V41/I10/97

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