Immersed tube section separating device for seabed immersed tunnel

A separation device and immersed tunnel technology, applied in hydraulic engineering, artificial islands, underwater structures, etc., can solve the problems of many constraints, damaged immersed pipe joints, and adverse weather conditions, etc. The effect of design, clear force and simple structure

Active Publication Date: 2015-05-13
NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG
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Problems solved by technology

[0002] At present, the installation of bottom immersed tube tunnels has difficulties and characteristics such as difficult construction, many restrictive conditions, and many influences from bad weather conditions.
Among them, the re-disengagement of the installed immersed tube joints of the immersed tube tunnel is an important step in the installation process of the subsea tunnel. There is no special device for the separation of immersed tube joi

Method used

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  • Immersed tube section separating device for seabed immersed tunnel
  • Immersed tube section separating device for seabed immersed tunnel

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Embodiment Construction

[0021] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "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 simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention. In addition, the terms "first", "second" They are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that unless otherwise specified and limited, the t...

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Abstract

The invention relates to the technical field of installation of seabed immersed tunnels, in particular to an immersed tube section separating device for a seabed immersed tunnel. The immersed tube section separating device for the seabed immersed tunnel comprises an active separating unit and a passive separating unit; a separating jack is arranged at one end of the active separating unit and is used for applying an axial thrust to the passive separating unit, so that the active separating unit and the passive separating unit move relatively, and two immersed tube sections which are connected with each other and are connected with the active separating unit and the passive separating unit are separated from each other; the immersed tube sections cannot be damaged in a separating process; a GINA water-stop belt cannot turn sideward; end steel shells and end sealing doors are not affected; and the distance between the two immersed tube sections are increased as much as possible, and a sufficient safe distance is reserved for follow-up re-floating and twisting movement. The immersed tube section separating device is simple in structure, clear in stress and convenient to design and manufacture.

Description

technical field [0001] The invention relates to the technical field of installation of subsea immersed tube tunnels, in particular to an immersed tube section separation device for subsea immersed tube tunnels. Background technique [0002] At present, the installation of bottom immersed tube tunnels has many difficulties and characteristics such as difficult construction, many restrictive conditions, and many influences by severe weather conditions. Among them, the redisengagement of the installed immersed tube joints of the immersed tube tunnel is an important step in the installation process of the subsea tunnel. There is no special device for the separation of immersed tube joints in the prior art. In the case of immersed tube joints, the cables are usually tied to the post-installed pipe joints, and then a large-scale machine is used to forcibly stretch the two immersed tube joints that fit together. However, when the cables are used for splitting, it will affect The s...

Claims

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Application Information

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IPC IPC(8): E02D29/063
CPCE02D29/073
Inventor 林鸣宿发强王强尹海卿陈伟彬岳远征赫亚峰汤慧驰孙健
Owner NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG
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