High-speed railroad shoulder and drainage structure

Abstract

The invention relates to a high-speed railroad shoulder and drainage structure, which aims to solve the problems of graded broken stone cutting at the position of a high-speed railroad shoulder cable channel and effective draining of seepage water in the cable channel, avoid problems of difficult cutting and irregular cutting of graded broken stones at the position of the railroad shoulder cable channel as well as the problem that stability and sedimentation of the filling subgrade are influenced by poor seepage water drainage in the cable channel. The high-speed railroad shoulder and drainage structure comprises a subgrade bed bottom layer filled on the ground or a subgrade body, a subgrade bed surface layer filled on the top of the subgrade bed bottom layer and a cable channel arranged at a railroad shoulder. A composite geomembrane is laid between the subgrade bottom layer and the subgrade bed surface layer, and a geotextile is laid on the internal layer of the subgrade bed surface layer; a seepage material is arranged at the bottom part of the cable channel, and the outer side of the cable channel is provided with a subgrade protection shoulder. An asphalt board is arranged between the cable channel and the subgrade bed surface layer.

Description

Technical field [0001] The invention relates to a high-speed railway, in particular to a high-speed railway shoulder and drainage structure. Background technique [0002] High-speed railway cable troughs in China are all placed on the shoulder of the roadbed. It is necessary to cut the graded gravel on the surface shoulder part of the filled high-speed railway subgrade bed and then place the cable trough. Because the graded gravel is dense and high in strength, cutting is difficult and difficult. It is easy to cause the adjacent uncut part of the graded rubble to loosen; after the cable trough is placed, the gap between the cable trough and the inner subgrade bed surface and the gap between the cable trough cover plate cause rainwater to infiltrate into the cable trough; the traditional cable trough is on the outside Setting the drain hole, the location of the drain hole of the cable trough and the drain hole of the subgrade shoulder are difficult to correspond or the correspondi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-speed railway shoulder and drainage structure to solve the problem of grading gravel cutting at the position of the cable trough on the high-speed railway shoulder and the effective discharge of water seepage in the cable trough, avoiding the cutting of the grading gravel at the position of the cable trough on the road shoulder Difficulty and irregular cutting, as well as poor drainage of cable troughs affect the stability of the filled subgrade and settlement problems

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