市域铁路与已建地铁贯通运营技术研究

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Abstract Research purposes: The network planning and construction planning of early urban rail transit mainly focused on the internal rail transit and seldom planned the layout of the suburban railways serving the periphery of the city in advance. Most of the important corridors are occupied by urban rail transit, and it is extremely difficult to select the line for suburban railway through the central city. The demand for direct passenger flow to the central city cannot be effectively alleviated. It is of great significance to study the inter-connectivity technology between suburban railway and built subway in order to reduce transfer times, make full use of existing corridor, attract passenger, reduce investment and improve service quality.
Research conclusions: (1) Combined with the technical standards of the existing subway, it is recommended to adopt dual-current system vehicles for inter-connection between urban railway and subway. (2) The structure gauge should meet the requirement of dual-current vehicles passing. (3) AC 25 kV and DC 1 500 V power supply modes are adopted. (4) A transition neutral section or system separation section is set between different power supply systems. (5) If the existing signal system is not inter-connected, products should be used from the same manufacturer to meet compatibility requirements. (6) Overhead catenary is generally adopted in dual-current system, and the overhead catenary in transition section should be adopted in the form of neutral insulated anchor joint. (7) These turn-back stations of the existing subway line should meet early, near-term, forward operating-diagram. (8)Through analyzing the problems of inter-connection in the vehicles, power supply and transformation, communication signals and civil sidings, the solutions are put forward to break through the technical obstacles of inter-connection between suburban railway and built subway, and provide technical support for the operation of cross-line trains.

Key words： inter-connectivity dual-current supply mode built subway suburban railway

Received: 18 May 2022

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U22

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	Articles by authors
	LIU Liefeng
	LU Shuai
	JIANG Lingchao

Cite this article:

LIU Liefeng,LU Shuai,JIANG Lingchao. Research on the Inter-connectivity Technology between Suburban Railway and Built Subway[J]. Journal of Railway Engineering Society, 2022, 39(8): 93-97.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2022/V39/I8/93

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