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Field maintenance method for CRTSII slab-track track boards

A technology for on-site maintenance and slab track, which is applied in the direction of track, track laying, track maintenance, etc. It can solve problems such as difficult to untie, short maintenance skylight, and short time for CRTSⅡ slab track

Inactive Publication Date: 2014-02-19
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Domestic operation of CRTS Ⅱ slab track is short, and there is no experience in large-scale maintenance
In addition, after the longitudinal connection of the CRTS Ⅱ slab track, the temperature and internal force are high, it is extremely difficult to untie, and the maintenance skylight is short, which increases the difficulty of track maintenance. So far, there is no solution to the cracking and arching of the local track slab. make repairs

Method used

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  • Field maintenance method for CRTSII slab-track track boards
  • Field maintenance method for CRTSII slab-track track boards

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] The on-site maintenance method for a CRTS II slab track track slab described in this embodiment includes the following steps:

[0028] 1) Determine the damaged track slab, plant and anchor the intact track slab on both sides of the damaged track slab;

[0029] 2) After the intact track slabs on both sides of the damaged track slab are planted and anchored to strength, unlock the tension lock between the damaged track slab and the intact track slabs on both sides or / and between the two damaged track slabs;

[0030] 3) Repair the damaged track slab or / and between the track slabs;

[0031] 4) After repairing the damaged track slab or / and between the track slabs, restore the track slab to its original state by tensioning the lock;

[0032] 5) Plant reinforcement and anchor on the repaired damaged track slab;

[0033] 6) Finely ...

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Abstract

The invention discloses a field maintenance method for CRTSII slab-track track boards. According to the method, steel bars embedment and anchoring are carried out on complete track boards on two sides of each damaged track board, and therefore the internal force on the complete track boards on the two sides remains unchanged in the maintenance process; then, maintenances like unlocking, repairing, tensioning and resetting are carried out on the damaged track boards or / and positions between the damaged track boards, anchoring, unlocking, repairing and tensioning on the longitudinally-connected track boards can be completed within skylight time, and therefore the repaired track boards can meet demands of high-speed railway train operation.

Description

technical field [0001] The invention relates to the field of railway track technology, in particular to a method for on-site maintenance of a CRTS II slab track slab. Background technique [0002] CRTS Ⅱ type slab track is a new type of ballastless track system in which rails, track slabs, bases or supporting layers are arranged vertically and continuously. The tensile force of the rolled rebar is 50kN, and the 6 fine-rolled rebars form a total tension of 300kN between the slabs. After tensioning, the joints between the track slabs are poured. After the concrete strength of the joints between the slabs reaches the design strength, the track slabs are formed. A continuous reinforced concrete structure, carrying various forces such as train loads and temperature effects, provides precise and smooth rail support required for high-speed train operation. The purpose of tensioning longitudinal connection between track slabs is to maintain the stability of track slabs and limit th...

Claims

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Application Information

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IPC IPC(8): E01B29/00E01B1/00E01B2/00
Inventor 郜永杰孙立李秋义王森荣杨艳丽李平卓张世杰
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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