Construction method for carrying out non-excavation subway station through composite pipe joint structure

Abstract

The invention discloses a construction method for carrying out a non-excavation subway station through a composite pipe joint structure. A platform layer and a station hall layer of the station adoptsteel segments in specific forms correspondingly, and the steel segments adopt upper semicircles and lower semicircles to be assembled into rings; the steel rings are connected through inserting openings; the steel segments adopt inner and outer layer steel pieces, the interlayers between the inner layer steel pieces and the outer layer steel pieces are provided with rib plates and filled with concrete; and after the steel segments are assembled into a station structure, a reinforcement concrete combination layer is cast into the station structure in situ so as to meet construction of a secondary structure inside the station and form the station overall-type structure. The station can be constructed in a water-rich saturated soft clay stratum through an undermining method, excavation of part of existing roads and removal of pipelines can be avoided, the engineering risk is reduced, and auxiliary measures do not need to be adopted; and ground settlement can be effectively controlled, and station structure construction can be completed with rapid, safe, environmentally friendly and efficient effects.

Description

technical field [0001] The invention relates to the technical field of subway station construction, in particular to a method for implementing trenchless subway station construction using a composite pipe joint structure. Background technique [0002] At present, the construction methods of subway stations include open-excavation method, underground excavation method and light-shade combination method. [0003] The structure of the open and cut station is a cast-in-place reinforced concrete frame structure. However, in the central urban area of ​​Shanghai, there are dense buildings, numerous pipelines, and traffic congestion. The newly implemented rail transit stations have an increasing impact on surrounding buildings and pipelines, and the urban traffic is even worse. , the construction of a large number of subway stations in central urban areas is increasingly affected by pipelines, traffic, and buildings. It is difficult to meet the normal operation requirements of the ...

AI Technical Summary

Problems solved by technology

Underground excavation station structures have been applied in rock and composite strata in central, western and some southern cities of my country, but are still rarely used in water-rich and saturated soft clay strata.

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