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A construction method for the overall replacement of existing electrified railway catenary crossing lines and segmental insulators

A segmented insulator and electrified railway technology, applied in the direction of overhead lines, etc., can solve the problems of large number of vertical skylights, many safety hazards, and difficulty in implementation, and achieve the effect of getting rid of complete dependence, fewer operation items, and smaller task load

Active Publication Date: 2021-08-10
中铁建电气化局集团第三工程有限公司
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a construction method for the overall replacement of existing electrified railway catenary crossing lines and segmental insulators, so as to solve the problems of large number of vertical skylights required by the existing construction method, long time, many potential safety hazards and difficult implementation question

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  • A construction method for the overall replacement of existing electrified railway catenary crossing lines and segmental insulators
  • A construction method for the overall replacement of existing electrified railway catenary crossing lines and segmental insulators
  • A construction method for the overall replacement of existing electrified railway catenary crossing lines and segmental insulators

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Embodiment Construction

[0032] The following is an example of the Fengsha Line expansion project to describe the present invention in detail. Fengsha Line approves vertical skylights for 60 minutes every month, and the effective construction time after power failure is about 40 minutes. Only 2 vertical skylights are approved for each station every month Skylights, affected by transportation, construction skylights are often canceled. Considering the Xuanhua Station of the Fengsha Line, there are 6 crossover lines involving segmental insulators between the uplink and downlink in this station, and 2 crossover lines only involve the anchor section across the uplink and downlink. According to the traditional construction method, 22 vertical skylights are needed regardless of the skylight time. According to the Fengsha Line, only 2 vertical skylights are approved for each station every month, and only 11 months of construction are required for the replacement of the crossing line at Xuanhua Station. Howeve...

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Abstract

The invention relates to a construction method for integral replacement of existing electrified railway catenary crossover lines and segment insulators, comprising the following steps: a. the existing crossover lines are decomposed and anchored; b. the disassembled length measurement of the new crossover lines to be erected; c . The long anchor section of Xindu Line is erected, and the long anchor section of the existing crossing line is removed; d. The short anchor section of Xindu Line and the new segment insulator are replaced as a whole; e. Suspension adjustment, power transmission operation. The technical scheme of the present invention is based on the fact that the vertical skylights of the busy main line of the railway are short-blocked, few in number, low in cash, and the existing catenary crossing lines and station lines are the same anchor section, after careful design and repeated verified. The invention breaks the inherent thinking of the previous construction technology for crossing the line and replacing the segment insulator, and achieves remarkable effects in construction efficiency and construction safety.

Description

technical field [0001] The invention relates to the technical field of railway catenary construction, in particular to a construction method for overall replacement of existing electrified railway catenary crossovers and segmental insulators. Background technique [0002] The life cycle of the overall equipment of catenary for normal-speed railways in my country is generally 20 to 25 years. With the continuous increase of railway transport capacity and the continuous increase of train speed, the overall equipment loss of catenary is increased, which makes some railway catenary equipment run for a long time. Reach life cycle ahead of time. At present, the Beijing-Guangzhou Line, Shitai Line, Fengsha Line, Beijing-Baotou Line, Shanghai-Kunming Line and other busy railway lines have started the replacement of the overall equipment of the catenary. [0003] The replacement construction of catenary crossovers and section insulators of existing electrified railways involves simult...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60M1/28
CPCB60M1/28
Inventor 姜敏王永红陈宪祖杨刚耿藏军
Owner 中铁建电气化局集团第三工程有限公司
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