A formwork assembly for lining corbels in tunnel construction and its construction method

Abstract

The first aim of the invention is to provide a template component for lining a bracket in the tunnel construction. The template component comprises a first lining template and a second lining template, wherein an adjustable template group is commonly arranged on the first lining template and the second lining template and comprises a rotating template, a supporting plate and a translation template; the rotating template is arranged on the first lining template through a hydraulic oil cylinder; the translation template is arranged on the supporting plate through the other hydraulic oil cylinder in a moving way; a first joint plate is arranged on the rotating template; a second joint plate is arranged on the translation template. According to the template component disclosed by the invention, the whole structure is simple; the rotating template and the translation template are connected by adopting a hinge mode and are respectively driven by the hydraulic oil cylinder, so that the construction efficiency of the lining is improved; a bracket structure casting bin is of a movable structure, and the space size of the bracket structure casting bin can be flexibly changed, so the problem that bracket edges chip off is thoroughly solved. The second aim of the invention is to disclose a construction method for the template component for lining the bracket in the tunnel construction. The construction method is simple in step and convenient for operation.

Description

technical field [0001] The invention relates to the field of tunnel lining devices, in particular to a formwork assembly for lining corbels in tunnel construction and a construction method thereof. Background technique [0002] The most commonly used secondary lining support equipment in existing tunnel construction is tunnel lining steel formwork trolley, which is composed of portal frame support system, bracket support system, walking system, hydraulic system, ladder platform system and steel formwork , whose steel formwork conforms to the contour of the tunnel lining. But when the tunnel is designed with corbel structure requirements, this kind of ordinary steel formwork cannot meet the corbel lining requirements, and the tunnel secondary lining and corbel structure can only be poured in stages, and the corbel nodes must be reserved first to complete the tunnel second Secondary lining, and then use special formwork to pour the corbel structure. The disadvantages of stag...

AI Technical Summary

Problems solved by technology

Lining the corbels with this steel formwork has the following disadvantages: (1) Pouring molding quality is poor, the corners of the corbels are easy to fall off, and only small-scale structure corbels can be poured in one piece, the operation is also very complicated, the work efficiency is low, and manpower Large waste; (2) The controllability is poor during the construction process, and the pouring quality of the corbel structure cannot be controlled. The overall performance of the corbel structure is poor, and the phenomenon that the corbel structure is not filled or the surface of the structure has many pores and pockmarks is common.

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