Up-down blocking type prefabricated assembled lining structure for open cut tunnel and construction method

Abstract

The invention belongs to the technical field of underground engineering, and particularly relates to an up-down blocking type prefabricated assembled lining structure for an open cut tunnel and a construction method. The structure is formed by longitudinally assembling a plurality of lining rings; the lining rings comprise first lining sub-blocks and second lining sub-blocks, the first lining sub-blocks and the second lining sub-blocks comprise structural plates and two side walls connected to the two ends of the structural plates; and the two lining sub-blocks of the lining rings are oppositely arranged up and down, and the two side walls of the first lining sub-blocks are connected with the two side walls of the second lining sub-blocks respectively. The prefabricated assembled lining structure for the open cut tunnel is formed by longitudinally assembling the lining rings, the lining rings are assembled in an up-and-down blocking mode, the formwork supporting procedure can be reduced, the lining site construction space is reduced, molds are saved, the construction period is shortened, the lining sub-blocks are prefabricated, production can be conducted on a factory assembly line, construction is convenient, quality is easy to control, construction influences are small, and material waste is little.

Description

technical field [0001] The invention belongs to the technical field of underground engineering, and in particular relates to a prefabricated and assembled lining structure of an upper and lower block type for an open-cut tunnel and a construction method. Background technique [0002] With the continuous increase of my country's urban population and the living needs of urban residents, the construction of urban rail transit is urgent. In recent years, my country's urban rail transit industry has developed vigorously, and many cities have started the construction of rail transit projects. How to quickly and greenly complete the construction of rail transit projects in the limited space in the city is a key point. [0003] At present, the shield tunneling method is commonly used in the construction of urban rail transit. However, due to some restrictions such as site conditions, many rail transit projects require the construction of open-cut tunnels. Most rail transit project...

AI Technical Summary

Problems solved by technology

Most rail transit projects involving open-cut tunnels use cast-in-place concrete for tunnel lining, but the use of cast-in-place concrete for open-cut tunnels in urban areas has a greater impact on the surrounding environment of the tunnel and requires on-site support. Formwork, formwork removal and other processes, the process is complicated, the construction period is long, the required construction operation space is large, and there is a lot of waste of materials

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