Subway station permanent and temporary combined open excavation sequential construction structure and construction method

Abstract

The invention discloses a subway station permanent and temporary combined open excavation sequential construction structure and a construction method. The subway station permanent and temporary combined open excavation sequential construction structure comprises an enclosure structure and a main body structure, wherein the main body structure comprises a prefabricated top plate, a prefabricated middle plate and a stand column; the prefabricated top plate is located above the prefabricated middle plate; the stand column is vertically arranged in the middle of the prefabricated top plate and theprefabricated middle plate; the enclosure structure comprises a first support, a second support and a section steel lattice column; the first support and the prefabricated top plate are connected ina supporting mode to form a permanent and temporary combined top plate structure; the second support and the prefabricated middle plate are connected in a supporting mode to form a permanent and temporary combined middle plate structure; and the stand column and the section steel lattice column are connected in a supporting mode to form a permanent and temporary combined stand column structure. According to the subway station permanent and temporary combined open excavation sequential construction structure, structural members such as reinforced concrete inner supports, temporary stand columnsand temporary connecting beams in a temporary structure do not need to be dismantled or chiseled away, materials and labor are saved, noise pollution and energy loss are avoided, meanwhile, the construction period is shortened, the working efficiency is improved, the safety and stability of a foundation pit are guaranteed, the structure stress is reliable, and the structure durability is not reduced.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a structure and a construction method of a subway station combined with open cut and sequential construction. Background technique [0002] Since 2009, the urban rail transit industry has entered a stage of explosive rapid development. Most subway stations have been constructed using the open-cut method, and the structure type is an enclosure structure + main structure. Structural components such as internal supports, temporary columns, and temporary connecting beams all need to be dismantled or chiseled out, which will generate a large amount of construction waste every year, and at the same time bring serious noise pollution, energy consumption and other problems. [0003] Therefore, a new type of subway station is designed, which is combined with open cut and built structures, so as to achieve the combination of temporary structures and permanent structures, greatly reduce the...

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Problems solved by technology

[0004] The object of the present invention is to provide a subway station in view of the problems that the structural components in the enclosure structure in the prior art need to be dismantled or chiseled out to form a large amount of construction waste, and at the same time bring serious noise pollution and energy loss. Yonglin Combined Open Cut and Constructed Structure and Construction Method

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