A lining trolley for dovetail large-section tunnel and its construction method

Abstract

The invention discloses a lining trolley for a dovetail large-section tunnel and a construction method thereof, comprising a door frame, a door frame positioning mechanism, a supporting platform and a double-layer formwork assembly, and the bottom surface of the door frame is connected by the door frame positioning mechanism The guide rail and the supporting platform are connected on the top of the door frame through the platform jack. The method includes: laying guide rails, installing a door frame positioning mechanism, installing a supporting platform, installing double-layer formwork components and lining a tunnel. The invention can not only improve the stability and reliability of the lining, but also balance the stress on the inner wall of the tunnel, avoiding the effect of the lining being affected by the uneven force. The overall stability and reliability of the lining trolley are greatly improved, and at the same time, the inner wall of the tunnel is evenly stressed during lining, and the quality of the secondary lining is improved.

Description

technical field [0001] The invention relates to a lining trolley for a dovetail type large-section tunnel and a construction method thereof. Background technique [0002] The tunnel lining trolley is a special equipment that must be used in the secondary lining of the tunnel construction process. It is used for the construction of the concrete lining of the inner wall of the tunnel. It mainly consists of lining trolley, fully hydraulic automatic walking lining trolley and grid-type lining trolley. [0003] The lining trolley in the prior art generally uses a single-layer top formwork and side formwork to lining the inner wall of the tunnel. Since the supporting platform and the jack directly act on the top formwork and the side formwork, it is easy to cause uneven stress on the top formwork and the side formwork. , which in turn affects the quality and effect of the lining. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a technical s...

AI Technical Summary

Problems solved by technology

[0003] The lining trolleys in the prior art generally use single-layer top formwork and side formwork to line the inner wall of the tunnel. Since the support stand and jack directly act on the top formwork and side formwork, it is easy to cause uneven force on the top formwork and side formwork. , thus affecting the quality and effect of the lining

Images