Construction method of railway tunnel lining side wall concrete
A construction method and concrete technology, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of increased construction difficulty and cost, numerous pouring procedures, and poor integrity of the tunnel lining concrete circle, so as to shorten the construction period and enhance the appearance Quality and the effect of reducing the construction process
Active Publication Date: 2012-03-28
NO 1 ENG CO LTD OF CR11BG +1
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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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[0031] exist figure 1 In the known or prior art railway tunnel lining side wall concrete construction steps, the existing railway tunnel lining trolley and formwork structure are used: inverted arch concrete a; the part below the ditch f is filled with concrete b; the part of the side wall foot concrete c below the ditch And the buried stubble reinforcement e, the low side wall concrete d and the buried stubble reinforcement e; the first step is to pour the concrete below the bottom of the ditch, and the part above the bottom of the ditch f is filled with concrete to form the tunnel bottom g; the second The first step is to pour the concrete of the short side wall below the top of the ditch cover plate; the third step is to pour the concrete arch wall h of the tunnel; three processes are required to complete the concrete pouring of the tunnel arch wall.
[0032] In the railway tunnel lining side wall concrete construction steps of the present invention, the lining trolley and ...
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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 tofix 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 sideof 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...
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IPC IPC(8): E21D11/10
Inventor 万云周晗周文清翟保欣
Owner NO 1 ENG CO LTD OF CR11BG