Prefabricated multi-directional large adjustment amount ballastless track structure and adjustment method thereof

By using a prefabricated multi-directional large-adjustment ballastless track structure, and employing a combination of toothed meshing and screw drive design, the problem of insufficient adjustment capacity of existing ballastless track structures under large foundation deformation is solved. This enables rapid and convenient multi-directional deformation adaptation, thereby improving the safety and stability of railway operations.

CN121931745BActive Publication Date: 2026-07-10TONGJI UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TONGJI UNIV
Filing Date
2026-03-31
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing ballastless track structures lack the ability to adjust to large foundation deformations, are complex to construct and difficult to maintain, and cannot meet the needs of large-scale multi-directional deformation.

Method used

The prefabricated multi-directional large-adjustment ballastless track structure includes a base plate, an adjustment layer, and a track plate. Through the combined design of toothed meshing, screw drive, and concrete pad blocks, the track plate achieves lateral stepped displacement and vertical stepless adjustment. Combined with the locking of the limit steel bar, it achieves rapid and precise reset and coordinated adjustment.

Benefits of technology

It enables rapid and precise repositioning and coordinated adjustment of the track structure under conditions of large foundation deformation, making construction simple and efficient, reducing maintenance costs, and improving the safety and stability of railway operations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121931745B_ABST
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Abstract

The application discloses an assembled multi-direction large-adjustment-amount ballastless track structure and an adjusting method thereof. The ballastless track structure comprises a base plate, an adjusting layer and a track plate. Tooth grooves and corresponding third limiting rod holes are arranged at both sides of the base plate in a transverse direction at equal intervals. The adjusting layer is arranged above the base plate and comprises two groups of adjusting structures which are symmetrically arranged along a longitudinal direction of the track. Each group of adjusting structures comprises a limiting adjusting structure located in the middle and a pair of symmetrically arranged concrete limiting adjusting blocks. The track plate is arranged above the adjusting layer, a plurality of fastener structures are uniformly arranged on the track plate in a longitudinal direction at equal intervals, the longitudinal direction is consistent with an extension direction of the track, and first limiting rod holes are further arranged on the track plate. Limiting steel rods are sequentially arranged through the limiting holes and connected with the first to third limiting rod holes. The application has the advantages that the track is adjusted without wet operation, reset is fast, maintainability and stability are improved, stress is uniformly ensured, limiting is reliable, and driving safety is ensured.
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