Dust-proof ballast covering

Abstract

The invention relates to a dustproof railway ballast covering layer. Railway ballasts on ballast track railway lines are exposed, sand dust and coal dust easily enter railway ballast holes, ballast beds are hardened, elasticity of railways is reduced, further, the stress state of railway components such as steel rails, fasteners and sleepers is deteriorated, and aging and failure are accelerated. The dustproof railway ballast covering layer is laid on the surface of a ballast bed, covering layers are spliced along the direction of a railway one by one, a railway core board is arranged at the center of each covering layer, a groove is arranged in the middle of each railway core board to form a drainage ditch, ballast shoulder boards are arranged on two transverse sides of each railway core board and are respectively inclined to the railway core board, and slope boards are arranged on transverse outer sides of the ballast shoulder boards and obliquely extend to the ground. The dustproof railway ballast covering layer can meet the requirements of regions affected by sand wind on laying of the railway lines, station arrival-departure tracks and loading and unloading lines, meets the requirements of railway clearances, has a certain strength and fine durability, does not affect ballast bed drainage, track circuits and equipment installation and maintenance, is made of environment-friendly materials, and is convenient for loading and unloading, safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of railway construction, and in particular relates to a dust-proof ballast covering layer. Background technique [0002] At present, on the railway lines with ballast tracks, the ballast is exposed, and fine particles such as dust and coal powder can easily enter the pores of the ballast, and gradually sink with the vibration of the train, making the ballast harden and the track The elasticity decreases, which in turn deteriorates the stressed state of rails, fasteners, sleepers and other track components, and accelerates aging and failure. Timely cleaning of the ballast bed is very necessary, but it is labor-intensive and time-consuming, and affects the normal traffic efficiency of the line. Laying ballastless track is another solution, but the premise is that the offline foundation must be stable, and engineering measures need to be strengthened. In addition, the cost of ballastless track itself is relat...

AI Technical Summary

Problems solved by technology

[0002] At present, on the railway lines with ballast tracks, the ballast is all exposed, and fine particles such as dust and coal powder can easily enter the pores of the ballast, and gradually sink with the vibration of the train, making the ballast harden and the track The elasticity decreases, which in turn deteriorates the stressed state of rails, fasteners, sleepers and other track components, and accelerates aging and failure

Timely cleaning of the ballast bed is very necessary, but it is labor-intensive and time-consuming, and affects the normal traffic efficiency of the line

Laying ballastless track is another solution, but the premise is that the foundation under the line must be stable, and engineering treatment measures need to be strengthened. In addition, the cost of ballastless track itself is relatively high, so this method is rarely used due to the huge economic cost

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