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A method for protecting the water stop of an immersed tube tunnel

A technology of immersed tube tunnels and waterstops, which is applied in water conservancy projects, underwater structures, buildings, etc., and can solve problems such as high waterproof requirements, poor protection effects, and complicated disassembly and assembly, so as to reduce construction difficulty and save costs , The effect of fast disassembly and assembly operation

Active Publication Date: 2019-11-05
NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the high waterproof requirements of the spliced ​​joints of the immersed pipe sections of the existing subsea tunnels. The double waterstop protection structure currently used is in danger of being damaged during the construction process. The conventional method is to lay steel plates at the joints of the pipe joints. The protection structure of the present invention has the technical problems of complicated disassembly and assembly and poor protection effect. A portable immersed tube tunnel water stop protection device and its protection method are provided. Difficulty and time saving; and the reliable channel steel plate structure and fixing method make the waterstop form a closed environment, effectively protect the waterstop, and the channel steel plate can also be reused, saving materials and costs

Method used

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  • A method for protecting the water stop of an immersed tube tunnel
  • A method for protecting the water stop of an immersed tube tunnel
  • A method for protecting the water stop of an immersed tube tunnel

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Embodiment 1

[0038] Such as Figure 1 to Figure 5 As shown, the portable immersed tube tunnel waterstop protection device in this embodiment includes a channel steel plate. The channel steel plate in this embodiment directly adopts channel steel 32, and the groove width of channel steel 32 is larger than the splicing of adjacent immersed tube joints. The seam size also includes the positioning ribs for fixing the channel steel 32 on the immersed tube joint, the positioning ribs are made of flexible material, so that the two sides of the channel steel 32 are respectively installed on the sinking bars on both sides of the splicing joint. on the pipe joint.

[0039] The immersed tube joints on both sides of the splicing joint are provided with special butt joint ends, and the threaded holes and bolt connection structures for installing the OMEGA waterstop will be set in advance on the adjacent immersed tube joint joints. The water belt protection device uses this structure to fix the two ends ...

Embodiment 2

[0050] Such as Figure 1 to Figure 5 As shown, according to the portable immersed tube tunnel waterstop protection device described in Embodiment 1, this embodiment provides a protection method for using the waterstop protection device for an immersed tube tunnel waterstop, including the following steps:

[0051] A. GINA waterstop 2 protection. After the GINA waterstop 2 is installed in place, empty the seawater and debris in the joint space of the pipe joint. Before the inner steel seal door of the pipe joint is removed, install a waterstop protection device at the joint of the pipe joint. ;

[0052] B. Carry out the removal operation of the steel seal door;

[0053] C. Install OMEGA waterstop 4, and install OMEGA waterstop 4 after removing the waterstop protection device;

[0054] D. OMEGA waterstop 4 protection, use the pressure plate of OMEGA waterstop 4 located at the pipe joint to set up the mounting frame, buckle the grooved steel plate on the mounting frame, and then...

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Abstract

The invention discloses an immersed tube construction technique. The invention provides a portable waterstop protection device for an immersed tube tunnel which comprises a grooved steel plate; the width of the groove of the grooved steel plate is greater than the size of the splicing joint of every two adjacent immersed tube sections; the waterstop protection device further comprises positioningribs which fix the grooved steel plate on the immersed tube sections; the positioning ribs are made of a flexible material, so that the two sides of the grooved plate are separately arranged on the immersed tube sections on two sides of the splicing joint. The protection device is simple in assembly and disassembly; compared with a protection structure of laying steel plates, the portable waterstop protection device has the advantages that construction difficulty is reduced, and the construction period is shortened; besides, due to the reliable grooved steel plate and the fixing mode, a hermetic environment is formed by a waterstop; the waterstop is effectively protected; and the grooved steel plate can be repeatedly utilized, so that materials are saved, and cost is reduced.

Description

technical field [0001] The invention relates to an immersed tube construction technology, in particular to a portable immersed tube tunnel water stop protection device and a protection method thereof. Background technique [0002] A tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels and mine tunnels, and the subsea tunnels used for traffic are built on the seabed in order to solve the traffic between the straits and bays without hindering the shipping of ships. Undersea marine structures for the passage of people and vehicles. [0003] Immersed tubes are required in long subsea tunnels, and the immersed tube section of the subsea tunnel is also a key part of its main project, which has a huge impact on the entire project. The entire immersed tube tunnel is connected by multiple pipe segments. The section of the immersed tube is a rectan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/073E02D29/16
CPCE02D29/073E02D29/16
Inventor 杨润来刘昊槟孔令磊孟凡利靳胜张怡戈何海龙朱宝华王从李
Owner NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY
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