Settlement adjusting method and system suitable for ballastless track with retaining shoulder

Abstract

The invention discloses a settlement adjusting method and system suitable for a ballastless track with a retaining shoulder, and belongs to the technical field of rail transit. A settlement adjustingunit comprising a cast-in-place boss, a base, an elastic strip buckling and pressing assembly and a ballast bed connecting assembly is arranged between blocking shoulder rail bearing tables of a ballast bed settlement section, and by means of corresponding arrangement of the set height of the cast-in-place boss and corresponding optimization of the pre-buried position of an insulating sleeve, height adjustment and rail gauge adjustment of a steel rail after ballast bed settlement can be accurately achieved. In the settlement adjusting method and system suitable for a ballastless track with a retaining shoulder, the settlement adjusting system is simple in structure, settlement adjustment step is simple and convenient, the device can be fully suitable for height adjustment and track gauge adjustment during ballast bed differential settlement, the efficiency and precision of steel rail settlement adjustment are improved, the high smoothness of the steel rail is fully guaranteed, the operation quality of a high-speed railway is improved, the maintenance cost of the ballastless track with the retaining shoulder is reduced, and the device has good application prospects and popularization value.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a settlement adjustment method and system suitable for a ballastless track with a shoulder. Background technique [0002] In recent years, my country's high-speed railway has achieved world-renowned development. As of the end of 2019, my country's high-speed railway operation mileage exceeded 35,000 kilometers, accounting for more than two-thirds of the world's high-speed railway mileage, ranking first in the world. [0003] With the continuous increase of operating mileage lines, the amount of maintenance and repair of lines is also increasing, and new maintenance and repair problems continue to appear. Taking the maintenance and repair of the track as an example, at present, my country's high-speed railway mainly adopts the ballastless track structure. Due to the particularity of the ballastless track structure, during the operation of the line, the geometric s...

AI Technical Summary

Problems solved by technology

Although this method can solve the uniform settlement of the under-rail foundation to a certain extent, it cannot meet the adjustment requirements of the uneven settlement of the under-rail foundation, let alone achieve a large horizontal adjustment of the track.

In addition, the above method requires special construction equipment, complex procedures, and high maintenance costs, which indirectly increase the operating costs of high-speed railways

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