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Immersed tube tunnel final joints structure form and use method thereof

A technology of joint structure and immersed tube tunnel, which is applied in the direction of tunnel, earthwork drilling and mining, mining equipment, etc.

Inactive Publication Date: 2006-07-19
SHANGHAI TUNNEL ENGINEERING CO. LTD.
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Problems solved by technology

[0005] The purpose of the present invention is to provide a structural form of the final joint of the immersed tube tunnel and its use method in view of the deficiency of the existing final joint dry construction method and the limitation of the construction conditions, without the need to select the dry dock at the axis of the immersed tube tunnel Dry construction of the final joint is now possible

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  • Immersed tube tunnel final joints structure form and use method thereof
  • Immersed tube tunnel final joints structure form and use method thereof

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Embodiment Construction

[0010] The features of the present invention and other related features will be further described in detail below with examples in conjunction with the accompanying drawings.

[0011] Such as figure 1 , 2 As shown, the numbers 1 to 12 respectively represent: buried section (1), water retaining embankment (2), joint well (3), final joint (4), joint well bottom plate (5), joint well side wall (6) , anti-wave parapet (7), the last sinking pipe section (8), thrust sill (9), vertical framing steel seal door (10), corbel (11) on the bottom plate of the joint well, and the well opening of the joint Mouth (12).

[0012] A subsea rectangular immersed tube tunnel has a pipe section width of 8.1m, a height of 4.4m, and a section length of 23.4m. Each tunnel has a total of 6 sections, which are sunk from the sea to the shore, and the final joint construction is carried out at the junction of water and land. Objective conditions determine that the dry dock cannot be selected at the axis...

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Abstract

The invention relates to a structure of final interface between land and water and relative usage method. The method comprises following steps: arranging waterproof band and interface well when embedding tunnel while the interface well and the waterproof band are integrated as a whole; the interface well comprises a bottom plate, a side wall, a parapet, a beam on the bottom plate and a open obligated on the water-face surface; the last section of pipe is arranged on the beam of said bottom plate; when the last pipe is arranged, using vertical steel sealing door to seal the open; pumping out the water of interface; an connecting the tunnel without water. The invention has higher construction safety to apply the condition that the dry-docking is not constructed in the axle of tunnel, which can solve the defects of common final interface dry construction.

Description

technical field [0001] The invention relates to a structure form of a final joint of an immersed tube tunnel and a method for using the same, in particular to a structure form of a final joint at the junction of water and land in the field of construction engineering and a method for using the same. Background technique [0002] The last end connection of the last pipe section of the immersed tunnel is called the final joint. The location of the final joint can be selected in the water or at the connection between the two banks and the land tunnel, and its structure can be rigid or flexible. However, no matter where the final joint is selected and what structure is adopted, factors such as the overall process of pipe section settlement, hydrological conditions during construction, channel conditions, operating machinery, and uneven settlement of the foundation and foundation after completion should be considered. Therefore, the final joint construction is a key node in the ...

Claims

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Application Information

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IPC IPC(8): E21D9/00
Inventor 何拥军刘千伟林家祥杨国祥肖晓春王琰
Owner SHANGHAI TUNNEL ENGINEERING CO. LTD.
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