Moving device for controlling upward floating of shield tunnel and reinforcing method

Abstract

The invention discloses a moving device for controlling upward floating of a shield tunnel and a reinforcing method, the moving device at least comprises battery cars, water storage tanks, drainage pipes, sheet-shaped steel frames and profile steel connecting pieces, and the water storage tanks are erected on the bodies of the battery cars; each duct piece hole in the shield tunnel duct piece is connected with the water storage tank through a drainage pipe; the multiple sets of sheet-shaped steel frames are arranged in the radial direction of the shield tunnel and arranged between the periphery of the water storage tank and shield tunnel segments. The profile steel connecting pieces are connected with the sheet-shaped steel frames in the radial direction of the shield tunnel. The reinforcing method comprises the following steps: (1) draining water in the tunnel hole through the duct piece holes; (2) a plurality of battery cars are adopted in the tunnel to support the water storage tank, and all sets of sheet-shaped steel frames and profile steel connecting pieces on the periphery of the water storage tank serve as steel frame supports and are used for reinforcing and supporting shield tunnel segments; the method has the advantages of rapidness, mobility, real-time performance and the like, floating of the shield tunnel can be controlled, and the safety of the shield tunnel structure is ensured.

Description

technical field [0001] The invention relates to the field of shield tunnel construction, in particular to a mobile device for controlling the floating of a shield tunnel and a reinforcement method. Background technique [0002] At present, the development of underground space near rail transit is more and more, and it is inevitable to carry out foundation pit excavation above the shield tunnel, resulting in the unloading of the soil above the shield tunnel, and the soil caused by the ground foundation pit excavation. The unloading of the body will cause additional stress and deformation to the shield tunnel. At the same time, due to the rise of the groundwater level, the pore water pressure of the soil increases, the effective stress decreases, the soil rebounds, and the compressive modulus of the soil decreases. The soil body under the level presents a large amount of strain and deformation. The rebound deformation of the upper soil body causes the lower soil layer to be su...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a mobile device and a strengthening method for controlling the shield tunnel to float up, aiming at the above-mentioned deficiencies in the existing methods for controlling the deformation of the shield tunnel, which can control the deformation of the shield tunnel in real time and solve the problem of the original one-sided Control the shortcomings of the shield tunnel's floating deformation, while ensuring the structural safety of the shield tunnel, it has the advantages of good mobile portability, wide application range, reusable use, and small investment.

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