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Method for repairing and reinforcing open joint of filling layer of slab ballastless track

A technology of slab ballastless track and filling layer, which is applied in the direction of track, track laying, track maintenance, etc., to achieve good permeability, prevent recurrence, and have good repair and reinforcement effects

Inactive Publication Date: 2015-03-11
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: Aiming at the current situation that there is no repair and reinforcement method for the filling layer of the slab ballastless track structure, the present invention proposes a method for repairing and strengthening the filling layer of the slab ballastless track structure.

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  • Method for repairing and reinforcing open joint of filling layer of slab ballastless track

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] A method for repairing and reinforcing the gaps in the filling layer of a slab ballastless track structure described in this embodiment includes the following steps:

[0027] 1) Drilling holes vertically on the track surface in the separation zone of the filling layer;

[0028] 2) Anchoring at the drilling position on the track surface;

[0029] 3) Grouting repair for the fractured area of ​​the filling layer.

[0030] Step 1): Determine the number of drilling holes in the track slab in the separation area of ​​the filling layer according to the separation of the filling layer of the track slab. The number of drilling holes can refer to the following standards:

[0031] a) When the gap width of the track plate is greater than 8mm, 20 holes can be drilled, that is, holes are drilled on each rail platform;

[0032] b) When the...

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Abstract

The invention discloses a method for repairing and reinforcing an open joint of a filling layer of a slab ballastless track and belongs to the technical field of high speed railway engineering maintenance. The method comprises the following steps of drilling and anchoring a slab of the track with the open joint; grouting and repairing an open joint area of the filling layer. The method solves the problem that an effective method for repairing the open joint of the filling layer is lacked in the prior art; the method is simple and quick in procedures and easy to implement, can effectively eliminate the open joint of the filling layer of the slab ballastless track structure, ensures that the requirement on high speed running is met after repair, can be used for repairing and reinforcing the open joint of the filling layer of the slab ballastless track of a high speed railway, and can also be used for repairing and reinforcing other projects with layered structures.

Description

technical field [0001] The invention belongs to the field of maintenance and maintenance of high-speed railways, and in particular relates to a technology for repairing and reinforcing the gaps in the filling layer of a slab-type ballastless track structure. Background technique [0002] The slab ballastless track has become the main track structure type adopted by the 300 km / h high-speed railway in my country because of its high track smoothness, good stiffness uniformity, and strong stability. my country's Beijing-Shanghai, Beijing-Shiwu, Beijing-Tianjin, Jinqin, Harbin-Dalian, Shanghai-Nanjing, Shanghai-Hangzhou, Ninghang, Hangzhou-Ningbo, Hebeng and other high-speed railways all adopt slab ballastless track structure. The slab ballastless track structure is mainly composed of prefabricated track slabs, filling layers, concrete bases or hydraulic support layers, etc. The track slabs in the CRTS I slab ballastless track structure adopt a unit structure, while the track sla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B31/00C08L75/04
CPCE01B31/00E01B2204/09
Inventor 易忠来李化建谭盐宾谢永江温浩靳昊程冠之
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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