Novel lining trolley for dovetail type large-section tunnel and construction method thereof

Abstract

The invention discloses a novel lining trolley for a dovetail type large-section tunnel and a construction method thereof. The novel lining trolley comprises a portal frame, a portal frame positioning mechanism, a supporting rack and a double-layer formwork assembly, wherein the bottom surface of the portal frame is connected with a guide rail through the portal frame positioning mechanism, and the supporting rack is connected to the upper portion of the portal frame through a rack jack. The method comprises the steps of guide rail laying, portal frame positioning mechanism installation, supporting rack installation, double-layer formwork assembly installation and tunnel lining. According to the novel lining trolley for the dovetail type large-section tunnel and the construction method thereof, the stability and reliability of lining can be improved, the stress of the inner wall of the tunnel can be balanced, and the situation that the lining effect is affected due to uneven stress is avoided; and the use method is simple in step, installation of the lining trolley is facilitated, the overall stability and reliability of the lining trolley are greatly improved, meanwhile, the stress of the inner wall of the tunnel is uniform during lining, and the quality of secondary lining is improved.

Description

Technical field[0001]The present invention relates to a new type of lining truck for a dovetail large section tunnel and its construction method thereof.Background technique[0002]Tunnel lining trolley is a special equipment that must be used in secondary lining of tunnel construction processes for construction of concrete lining in the inner wall of the tunnel. It is mainly from lining trucks, full hydraulic automatic walking lining trucks and grid lining trucks.[0003]The lining trolley in the prior art is generally lining the inner wall of the tunnel and the side template, and because the support gase is directly acting on the top template and the side template, it is easy to cause unevenness of the top template and the side template. Further, it will affect the quality and effect of the lining.Inventive content[0004]SUMMARY OF THE INVENTION It is an object of the present invention to provide a technical solution for a new type of lining truck and its construction method thereof fo...

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

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