High-speed rail crts Ⅱ type slab ballastless track track slab gap adjustment method

Abstract

The invention discloses a method for repairing an open joint of a track slab of a CRTS II type slab ballastless track on a high-speed rail, which is characterized by comprising the following steps of: firstly measuring the situation of the open joint generated in the track slab and determining the processing condition that the track slab presents an open joint track slab due to a unilateral open joint or a lateral through open joint, and the arch amount of the open joint track slab is not more than 2 mm; then taking two track slabs respectively arranged on the two symmetrical sides of a center track slab as anchoring track slabs through taking the open joint track slab as the center track slab and fixing the anchoring track slabs in a way of anchoring embedded steel bars by utilizing anchor bars; and after the embedded steel bar anchorage for the anchoring track slabs is finished, jointing and repairing the open joint generated in the track slab. The method has the benefits that the further enlargement of the open joint can be effectively restrained, so that a safe guarantee is provided for the operation of the high-speed rail; and through the method, the construction organization and the operation are convenient and quick.

Description

technical field [0001] The invention relates to the technical field of line maintenance of ballastless track of high-speed railway, and more specifically relates to a method for regulating the distance between track slabs of CRTS II slab-type ballastless track of high-speed railway. Background technique [0002] High-speed railway refers to a railway with a running speed of more than 200 km / h. It is a huge system project that is organically combined with infrastructure suitable for high-speed operation, fixed equipment, mobile equipment, a complete and scientific safety assurance system and transportation organization methods. It is a comprehensive integration of contemporary high-tech. [0003] When the high-speed railway was put into operation, maintenance problems of the high-speed railway ballastless track line followed. Arching occurs on the ballast track track slab, such as figure 1 As shown, there is a separation gap 2 between the track plate 1 and the mortar layer ...

AI Technical Summary

Problems solved by technology

[0003] When the high-speed railway was put into operation, maintenance problems of the high-speed railway ballastless track line followed. Arching occurs on the ballast track track slab, such as figure 1 As shown, there is a separation gap 2 between the track plate 1 and the mortar layer 3. Although this separation gap will not threaten driving safety, if it is not dealt with, the separation gap will expand. Once the separation gap expands, the amount of arch on the track plate If it reaches more than 2mm, it will seriously threaten driving safety.

[0004] At present, the treatment of the separation gap is only to replace the track slab, but the implementation cost of the track slab replacement is huge and the construction period is long, resulting in a long time affecting the traffic, and after the replacement is completed, the speed of the train still needs to be limited for a certain period of time

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