Lifting correction device and method for CRTSI mould board type ballastless track on high-speed railway roadbed

Abstract

The invention relates to a lifting correction device and method for a CRTSI mould board type ballastless track on a high-speed railway roadbed. The device comprises H-type longitudinal steel beams (1), H-type short cross beams (2), high-strength bolts (3), vertical jacks (4), tetrafluoroethylene plates (5) and vertical concrete piers (6). The H-type longitudinal steel beams (1) arranged on a base plate are fixedly connected with the base plate through the high-strength bolts (3); the H-type short cross beams (2) disposed on the outer side of the upper portion of the base plate and the H-type longitudinal steel beams (1) are directly welded and fixed; each H-type short cross beam (2) extends out of the left side and the right side of the base plate (8) for a certain distance respectively; the vertical concrete piers (6), the vertical jacks (4) and the tetrafluoroethylene plates (5) are sequentially connected on the lower sides of the H-type short cross beams (2) from bottom to top; displacement is transmitted to the base plate (8) sequentially through the tetrafluoroethylene plates (5), the H-type short cross beams (2) and the H-type longitudinal steel beams (1) by means of movement of the vertical jacks (4), and therefore the base plate (8) and a track plate (7) are lifted.

Description

technical field [0001] The invention belongs to the technical field of repairing ballastless track structures of high-speed railways, and in particular relates to a lifting and deviation correction method for CRTSI type slab ballastless tracks on subsidence subgrades. Background technique [0002] Ballastless track is a low-maintenance track structure, which uses reinforced concrete base plate instead of ballast to distribute and transfer the wheel-rail force to the subgrade foundation. Ballastless track has the characteristics of good track stability, continuity and smoothness, long service life, good structural durability, and less maintenance workload. Therefore, most of the high-speed railways we are building at this stage are based on ballastless track. The rigidity of the ballastless track is very large, resulting in little plastic deformation. Once the foundation below the track deforms and sinks, it is difficult to repair and the possibility of improvement is limite...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a CRTSI-type slab-type ballastless track lifting and correcting device and method on a high-speed railway embankment. The lifting tool is installed on the base plate, and the base plate (including the upper track plate) is lifted and translated by a hydraulic system to solve the problem of The problem of limited adjustment value of the fastener system can be solved, and the settlement deviation disease of the ballastless track line on the subgrade can be repaired within the skylight time of the high-speed railway and the smoothness of the line can be ensured

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