Large shield subway station structure and construction method thereof

Abstract

The invention relates to a large shield subway station structure. The large shield subway station structure comprises a plurality of sections of tube segments; concrete layers are arranged on the inner sides of the tube segments; waterproof layers are arranged between the concrete layers and the tube segments; subway station space is formed within the concrete layers; top plates, middle plates and bottom plates are connection into the concrete layers; the subway station space is divided into a pipeline layer, a station hall layer, a platform layer and a functional layer; thickening parts areintegrally manufactured at the end parts, close to the concrete layers, of the middle plate and the bottom plate; the platform layer comprises a prefabricated platform positioned in the middle and subway tracks on two sides of the prefabricated platform; at least one row of hooks are buried at the bottom and above the subway tracks; the hooks are connected with an air duct; the inner sides of thesubway tracks are provided with evacuation channels; a plurality of partition walls are arranged in the functional layer; and each partition wall is divided into an equipment room, a pipeline room anda drainage room; The invention also relates to a construction method of the large shield subway station structure. The construction method comprises six steps. The large shield subway station structure can greatly improve the space utilization rate of the subway station, and effectively solves the problem of constructing the subway station by tunneling under complex environmental conditions.

Description

technical field [0001] The invention relates to the technical field of underground engineering, in particular to a large shield subway station structure and a construction method thereof. Background technique [0002] At present, shields are used to construct subway stations mainly in the form of double horseshoe and three-circle shields, etc. The cross-sectional form requires at least two advances of the shield to form a cross-sectional profile, and the installation of segments is difficult and the space utilization rate is low; Some construction methods generally include open-cut method and under-cut method. The underground excavation method is greatly affected by geological conditions, the degree of mechanization is low, manual excavation and construction are risky, and the quality is not high; , mountains, buildings, etc.), traffic relief, pipeline relocation, demolition and land acquisition, river and mountain relocation, etc., the project volume and coordination are h...

AI Technical Summary

Problems solved by technology

The underground excavation method is greatly affected by geological conditions, the degree of mechanization is low, manual excavation and construction, the risk is high, and the quality is not high; the open excavation method requires open and large excavation. , mountains, buildings, etc.), traffic relief, pipeline relocation, demolition and land acquisition, river and mountain relocation, etc., the project volume and coordination are huge, the investment is quite high, and the implementation is extremely difficult

[0003] At the same time, the existing cross-sectional structure only relies on the segment as the side wall, the strength needs to be improved, and water leakage is prone to occur under some conditions

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