A construction method for grooved tracks reserved for general integral ballast beds in subway depots

A technology for subway depots and integral track beds, which is applied to tracks, track laying, track maintenance, etc., can solve the problems of difficult construction, large control deviation of track state geometric dimensions, uncontrollable track bottom slope, etc., and achieves simple and economical construction. The cost of engineering measures, the effect of simple operation

Active Publication Date: 2018-05-15
HUAHAI ENG CO LTD OF CREC SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the rail bottom slope cannot be controlled, the geometric dimension control deviation of the track state is large, and the construction is difficult in the existing method. Construction method of reserved groove track in general integral ballast bed in metro depot

Method used

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  • A construction method for grooved tracks reserved for general integral ballast beds in subway depots
  • A construction method for grooved tracks reserved for general integral ballast beds in subway depots
  • A construction method for grooved tracks reserved for general integral ballast beds in subway depots

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Embodiment 1

[0034] See figure 1 In the subway depot, the reserved groove of the monolithic track bed is generally divided into a left-strand groove and a right-strand groove. The width of the reserved groove is 420mm and the depth is 450mm. The construction of the reserved groove is completed by the early civil construction unit; The new and old concrete is better bonded. The surface and bottom of the reserved groove are treated. Before the rail is placed in the groove, the concrete is poured in the reserved groove for chipping treatment, and at the same time between the two short sleeper blocks at the bottom of the reserved groove Plant 2 expansion bolts, the length of the expansion bolt is 200mm, the diameter is 20mm, and it is implanted in the concrete at the bottom of the reserved groove 100mm. After cleaning the garbage in the groove, apply the concrete interface agent before pouring the concrete, such as Image 6 , 7 Shown.

[0035] See figure 2 , The fixing devices used in the constru...

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Abstract

The invention relates to the field of metro depot rail construction method, and specifically relates to a metro depot common monolithic track bed reserved groove rail construction method. The method comprises: treating ground concrete of a reserved groove, placing a steel rail on the reserved groove, using a steel rail fixing device to hang the steel rail in the reserved groove, installing a short sleeper and a fastener to perform track panel assembly and steel rail connection, using a fixing device to adjust rail state geometric dimensions of rail cant, track gauge, directions, level, and elevation, and control precision, pouring track bed concrete in the reserved groove. The method is simple in construction, and the fixing device is simple to operate and convenient to dismount, and the device can be recycled, so as to save engineering measure cost. The method adjusts rail state geometric dimension precision of rail cant, track gauge, level, directions, and elevation, and achieves requirements and purposes of construction quality.

Description

[Technical Field] [0001] The invention relates to the field of rail construction methods for subway depots, in particular to a construction method for rails with grooves reserved for general monolithic track beds in subway depots. [Background technique] [0002] As we all know, a certain number of system projects are reserved for the long-term operation of the subway depot during planning. The track reserves grooves for the strands. Under normal circumstances, the grooves for the reserved strands are basically completed by civil construction. The main content of the reservation is system engineering installation. , Such as track, power supply, signal, etc., according to the design requirements, reserve grooves in the general overall track bed in the library, and then carry out the construction of track, power supply, signal and other systems. Due to the need to increase the number of operating vehicles for urban development, in order to ensure that operating vehicles have parking...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B29/00E01B29/16E01B1/00
CPCE01B1/002E01B29/00E01B29/16
Inventor 徐明发韩仲陈祥邱亮刘国利范文清钱琨
Owner HUAHAI ENG CO LTD OF CREC SHANGHAI
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