Construction method for plate ballast bed of metro

Abstract

The invention relates to a construction method for a plate ballast bed of a metro. The method comprises the steps of a basement backward paving construction step, in which a truck mixer transports concrete from a front material feeding well segment to a material storage truck to and fro via a pump or a belt conveyer in a backward moving manner, the material storage truck moves backward to an area to be paved and discharges concrete, and a paver paves; and a plate pathway conveying and paving steps, in which a back pathway and floating plates are transported to a construction area by using a flatcar, a plate paver is used for sequentially discharging the floating plates from the flatcar and paving the same to a predetermined area; and then the pathway is discharged from the flatcar and paved on the floating plates. According to the method provided by the invention, building of a temporary pathway is not needed, the damage to tunnel segments caused by the temporary pathway when the temporary pathway is supported and fixed is reduced, and the construction speed is rapid; in a tunnel, both the truck mixer and the material storage truck can move on a plane as well as a hook face for conveying the concrete, so that the concrete transportation cost is low, and the adaptability is good; the backward paving construction can be operated with subsequent construction in parallel, so that the construction efficiency is high.

Description

Technical field [0001] The invention relates to a construction method, which belongs to the railway construction field, in particular to a construction method of a subway slab track bed. Background technique [0002] With the rapid development of modern high-speed railways, slab track ballastless tracks have been widely used in domestic high-speed railways and passenger dedicated lines in recent years. Slab track ballastless track not only has better track stability and rigidity uniformity, but also has higher track smoothness and durability, which can reduce the amount of track maintenance. [0003] In the traditional monolithic track bed construction of subway tracks, basically all concrete structures are cast on site, which not only pollutes the environment and creates noise, but also increases the labor intensity of workers, the construction environment is poor, and the quality control methods are relatively weak. From the perspective of the construction quality of the enginee...

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the problems of environmental pollution, noise pollution, high labor intensity, poor construction operation environment, and weak quality control means caused by the overall construction of the subway track existing in the prior art, and proposes a subway slab track bed construction method

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