Construction method of railway tunnel lining side wall concrete

Abstract

The invention provides a construction method of railway tunnel lining side wall concrete. Firstly concrete for an inverted arch and the inner part of the inverted arch is constructed, then sleepers are placed, and a lining trolley traveling track is laid; a lining trolley is moved to a place to be lined, molding boards are connected to the top of a gantry, and end of hydraulic oil cylinders and jacks at two sides; the side hydraulic oil cylinders at two sides are started to regulate the molding boards at two sides of the lining trolley to the design positions, and all side jacks are locked to fix the side molding boards; short side wall molding boards at two sides of a tunnel are respectively mounted, the upper end heads of the short side wall molding boards are connected with the lower ends of arc-shaped molding boards at two sides to form a molding board assembly, and the molding board assembly is mounted at one end of the jack on a water groove side wall to be mounted with one side of the short side wall molding board; and then the concrete is cast and lined, and the cast lined concrete is dismounted with the mold after reaching the strength of mold removal. The construction method reduces procedures and shortens the erection time, saves the construction cost, and enhances the structure of the tunnel lining side wall and improves the external quality.

Description

Technical field [0001] The invention relates to a concrete construction method for lining side walls of railway tunnels, in particular to a construction method capable of forming the lining side walls of railway tunnels at one time, and belongs to the technical field of concrete construction for railway buildings. Background technique [0002] At present, with the improvement of the construction quality standard, the tunnel lining adopts the integral hydraulic formwork trolley to carry out the concrete pouring construction, but due to the limitation of the section shape of the tunnel design lining, the known tunnel lining trolley is used when pouring the tunnel lining concrete. The lining concrete must be poured three times, that is, the first step is to pour the concrete below the bottom of the ditch; the second step is to pour the concrete for the short side wall below the top of the ditch cover; the third step is to pour the concrete for the side wall and the arch ring. D...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing tunnel lining concrete must be poured three times, the lining concrete pouring procedures are numerous, the construction difficulty and cost are increased, and the integrity of the tunnel lining concrete ring is poor.

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