衢宁铁路单线预留双线方案研究

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Abstract Research purposes: In order to meet the demand of passenger and freight volume and reserve long-term development conditions, part of the railways will be built as single track in the near future, and double track construction conditions will be reserved. The second track will be built at the right time after the railway is put into operation. The single track reserved double track railway needs to coordinate the short-term and long-term transportation demand of each section, the project and implementation conditions of first track and second track, and reasonably determine the station distribution, reserved line position of second track and the recent simultaneous implementation of the project. Through the study of Quzhou-Ningde railway line scheme, this paper discusses the design method of single track reserved double track railway.
Research conclusions: Single track reserved double track railway not only needs to design the first track, but also needs to reserve the conditions of the second track. (1) It is necessary to define the scope of simultaneous implementation of the second track. According to the difficulty degree of tunnel, bridge and station engineering of the first track, the left and right sides of the second track are determined by comprehensive comparison. (2) We should try to reduce the times of side changing, and choose the place of side changing according to the specific situation. (3) During the pre design of reserved second track, it is necessary to minimize the simultaneous implementation of the second track and the project shall be reserved when necessary. (4) This study can provide reference for the design of similar single track reserved double track railway.

Key words： single track reserved double track railway line scheme simultaneous implementation of the project

Received: 08 December 2021

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U237

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Cite this article:

QIN Guoqiang. Research on the Scheme of Reserving Double Track for Single Track of Quzhou-Ningde Railway[J]. Journal of Railway Engineering Society, 2022, 39(2): 19-23.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2022/V39/I2/19

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