Double-block sleeper capable of being provided with guard rail

Abstract

The invention relates to a double-block sleeper capable of being provided with a guard rail. The invention aims to solve the problems of considerable parts, inconvenience in installation and maintenance and high quality control difficulty of an anti-falling guard rail in the prior art. The double-block sleeper meets the requirement of preventing a train from derailing and invading a boundary of a temporary line in an existing double-line parallel and double-block type ballastless track laying section. The double-block sleeper comprises a standard block and a special-shaped block, wherein the special-shaped block extends in length towards a center line on the basis of the standard block, the standard block is of a reinforced concrete structure, steel bar trusses are arranged on the standard block and the special-shaped block respectively, structural steel bars and shoulder anti-crack steel bars are arranged in the standard block, a basic rail embedded sleeve is arranged perpendicular to a rail bearing table of the standard block, structural steel bars and special-shaped block shoulder anti-crack steel bars are arranged in the special-shaped block, and a guard rail embedded sleeve is embedded in the special-shaped blocks.

Description

Technical field: [0001] The invention belongs to the field of track engineering, and relates to a double-block sleeper on which a wheel guard rail can be installed, which is suitable for laying double-block ballastless tracks and requiring protection against train derailment. Background technique: [0002] The guard rail is a kind of train derailment protection device, which is usually installed on bridges and high-slope subgrades of low-grade lines, mainly to prevent trains from rushing out of the line after derailment and falling from bridges and high-slope subgrades, causing heavy casualties ACCIDENT. For high-grade lines, since there are anti-collision walls on both sides of the bridge, there is no need to install wheel guard rails. However, combined with the train derailment accidents that occurred in recent years, it is found that once the train derails in the double-track parallel section and then invades the boundary of the adjacent line, it will cause the adjacent ...

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to provide a double-block sleeper that can be installed with wheel guard rails, which overcomes the problems of many parts in the anti-falling guard rails in the prior art, inconvenient installation and maintenance, and difficult quality control. The need to prevent train derailment and intrusion into the boundary of the adjacent line in the existing double-track parallel and double-block ballastless track section

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