Water bag ballast method for immersed tube tunnel construction

An immersed tunnel, water bag technology, applied in artificial islands, water conservancy projects, underwater structures, etc., can solve the problems of high labor intensity, harsh working environment, and large amount of welding works, saving labor costs and labor costs. The effect of cost reduction and convenient operation

Active Publication Date: 2018-12-21
CCCC SECOND HARBOR ENG +1
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Problems solved by technology

[0002] At present, in the construction of immersed tube tunnels, the water tank ballast method is mostly used to adjust the negative buoyancy and attitude of the immersed tube during the lateral movement, floating and sinking installation process in the dock. The existing water tank structure mainly includes steel plates And steel-wood structure, but the material cost of this structure is high, and the process of disassembly and assembly...

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  • Water bag ballast method for immersed tube tunnel construction
  • Water bag ballast method for immersed tube tunnel construction
  • Water bag ballast method for immersed tube tunnel construction

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[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0041] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention.

[0042] The invention provides a water bag ballasting method for ...

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Abstract

The invention discloses a water bag ballast method for immersed tube tunnel construction. The water bag ballast method for immersed tube tunnel construction comprises the following steps of firstly, calculating the number and arrangement positions of water bags needing to be laid in a water bag ballast system according to the buoyancy stressed by an immersed tube; secondly, arranging and installing the water bag ballast system in the immersed tube; thirdly, carrying out water storage and leak detection on the water bags; fourthly, during floating transportation and immersion placement of the immersed tube, controlling and regulating negative buoyancy and gesture of the immersed tube in the process of transverse movement, floating transportation and immersion installation of the immersed tube in a dock by carrying out water storage and drainage on the water bags; and fifthly, detaching the water bag ballast system after the installation process of the immersed tube is completed. The water bag ballast method for immersed tube tunnel construction has the advantages of being simple in construction process, high in operation efficiency and control accuracy, and low in construction costand labor cost, and is very high in practicability.

Description

technical field [0001] The invention relates to the construction field of immersed tube tunnels. More specifically, the present invention relates to a water bag ballasting method for construction of immersed tube tunnels. Background technique [0002] At present, in the construction of immersed tube tunnels, the water tank ballast method is mostly used to adjust the negative buoyancy and attitude of the immersed tube during the lateral movement, floating and sinking installation process in the dock. The existing water tank structure mainly includes steel plates And steel-wood structure, but the material cost of this structure is high, and the process of disassembly and assembly is cumbersome, the labor intensity of workers is high, and it takes a long time. If steel plates are used as the box body, due to the large amount of welding work, there will be a lot of smoke and dust in the tunnel, and the working environment will be harsh. Although the improved steel-wood structu...

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Application Information

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IPC IPC(8): E02D29/073
CPCE02D29/073
Inventor 翟世鸿冯先导李志成孙晓伟沈立龙王聪仇正中林红星黄睿奕
Owner CCCC SECOND HARBOR ENG
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