A construction method for the drainage structure of the integral trackbed turnout area of ​​the freight yard railway in the port area

Abstract

The invention discloses a construction method for the drainage structure of the integrated trackbed turnout area of ​​the freight yard railway in the port area. The superstructure of the trackbed turnout area composed of reinforced concrete layers, the lower reinforced concrete layer of the trackbed turnout area superstructure is laid with sleepers and steel rails, and the turnout point rails of the steel rails pass through the switch machine connector and the switch in the switch center switch area. In the track area outside the switch center, the upper reinforced concrete layer of the superstructure is poured on the inside, between and outside of the basic rails of each strand of steel rail; in the switch area, the upper reinforced concrete layer of the superstructure is poured on each Between and outside the basic rails of the strand rails. In the present invention, by performing special treatment on part of the integral track bed fork area, the water-proof and drainage range of the fork area is reduced, the drainage speed is accelerated, silting is avoided, and the traffic area and transportation capacity of the freight yard in the port area are increased.

Description

technical field [0001] The invention relates to the technical field of drainage construction of railway traffic turnout areas, in particular to a construction method for a drainage structure of an integral trackbed turnout area of ​​a freight yard railway in a port area. Background technique [0002] In rail transit lines, each set of turnouts needs to be equipped with a switch machine, which is fixed on the outside of the basic rail, and the pull bar of the switch machine needs to pass through the basic rail and connect with the turning point rail with a coupling. When the signal is input to pull the command, the pull bar pulls the switch rail and locks it, so as to realize the switching of the switch. Therefore, concrete cannot be poured between the basic rails, and water accumulation is likely to occur between the basic rails. The existing integrated drainage structure in the turnout area of ​​the trackbed mostly adopts foundation pits and drainage pits to form a compreh...

AI Technical Summary

Problems solved by technology

Therefore, concrete cannot be poured between the basic rails, and water accumulation is easy to occur between the basic rails

The existing integrated drainage structure in the turnout area of ​​the trackbed mostly adopts foundation pits and drainage pits to form a comprehensive drainage system. However, under the special working conditions of the railway in the port area, the rainfall is large and there are many impurities in the ground water, and the conventional drainage system is prone to drainage. Unsmooth and serious blockage of drainage channels, which in turn cause damage to the expensive rails in the fork area, seriously affecting the service life of the rails in the fork area

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