Push-out final joint crimping method for immersed tube tunnel

A joint crimping and immersed tunnel technology, applied in construction, artificial island, infrastructure engineering and other directions, can solve the problems of difficult installation and control technology, complex equipment system, etc., to reduce the complexity of the system and the difficulty of installation and control technology, Ingeniously conceived to avoid the effect of underwater operations

Active Publication Date: 2022-06-03
CCCC HIGHWAY CONSULTANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a push-out type final joint crimping method for immersed tube tunnels, which is used to solve the shortcomings of complex equipment systems and difficult installation and control technology in the prior art

Method used

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  • Push-out final joint crimping method for immersed tube tunnel
  • Push-out final joint crimping method for immersed tube tunnel
  • Push-out final joint crimping method for immersed tube tunnel

Examples

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Embodiment Construction

[0045] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used for

[0050] S3: Water is injected into the gap to drive the final joint part 100 towards the first prefabricated section 1 using the water pressure in the gap

[0052] The method described in this embodiment utilizes the second prefabricated section 2 and the empty buoyancy in the final joint component 100 to resist

[0059] The method of the present embodiment utilizes water injection into the gap in advance, so that the second prefabricated section 2 is always

[0063] S120: During the floating process of the second prefabricated section 2, the outer wall of the final joint part 100 is locked by a detachable

[0067] S210: Before the second prefabricated section 2 is laid down, remove the locking between the final joint part 100 and the second prefabricated section 2

[0069] In the method of the pr...

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Abstract

The invention relates to the technical field of construction methods for immersed tube tunnels, in particular to a push-out type final joint crimping method for immersed tube tunnels. The method includes the following steps: floating the second prefabricated section above the predetermined position docked with the first prefabricated section at the construction site, the end of the second prefabricated section facing the first prefabricated section is sleeved with a final joint part; The prefabricated section is lowered to a predetermined position, and the adjacent positions in the final joint part and the second prefabricated section are sealed with end seal doors, and there is a gap between the two end seal doors. During the sinking process of the second prefabricated section, The water pressure in the driving gap is dynamically balanced with the water pressure outside the second prefabricated section; water is injected into the gap to use the hydraulic pressure in the gap to drive the final joint part to push out towards the first prefabricated section until the final joint part is released from the second prefabricated section Protrudes and docks the first precast section to construct a push-out final joint. The method is used to solve the shortcomings of complex equipment systems and difficult installation and control technology in the prior art.

Description

Immersed tunnel push-out final joint crimping method technical field The present invention relates to the technical field of immersed tube tunnel construction methods, in particular to the push-out type final joint crimping of immersed tube tunnels method. Background technique [0002] Immersed tube tunnel refers to the underwater tunnel constructed by the immersed tube method. The immersed tube method is the abbreviation of the prefabricated section sinking method. A construction method for underwater construction tunnels. The common construction of immersed tunnels by the immersed tube method is to float several prefabricated sections separately. It is transported to the surface construction site, and the prefabricated sections are sunk and installed one by one in the dredged underwater foundation trench. At present, the existing immersed tube tunnel usually divides each prefabricated section from the two ends of the immersed tube construction site to the For int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/073E02D29/16E02D19/02
CPCE02D29/073E02D29/16E02D19/02E02D2600/20E02D2250/0092Y02E10/20
Inventor 徐国平黄清飞刘明虎秦辉辉刘洪洲姬海王建平
Owner CCCC HIGHWAY CONSULTANTS
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