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Pile sinking construction process for overlong inclined socketed pile of offshore bearing platform

A construction technique and pile sinking technology, which is applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of inaccurate slope and penetration of super-long piles, meet the requirements of support strength, avoid displacement, and facilitate The effect of installation

Pending Publication Date: 2022-02-11
湖北工业大学工程技术学院
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Problems solved by technology

[0004] In view of this, it is necessary to provide a pile sinking construction technology for super-long inclined rock-socketed piles on offshore caps to solve the problem of inaccurate slope and penetration of super-long piles

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  • Pile sinking construction process for overlong inclined socketed pile of offshore bearing platform

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Embodiment Construction

[0025] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0026] see figure 1 , a pile sinking construction process of super-long inclined rock-socketed piles for offshore caps in this embodiment, the construction process includes the following steps carried out in sequence:

[0027] S1 steel pipe pile prefabrication, generally using Q235 steel plate as raw material, cut by a professional cutting machine, curled into a spiral shape by a high-power plate rolling machine, and welded into a cylindrical shape by an automatic welding machine, the weld seam requires X Optical damage detection to ensure the quality of welding. After the welding constructi...

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Abstract

The invention discloses a pile sinking construction process for an overlong inclined socketed pile of an offshore bearing platform, belongs to the technical field of offshore piling construction, and solves the problem that the slope and penetration of an overlong pile body are inaccurate. The process sequentially comprises the following steps of pile driving barge positioning, steel pipe pile transferring, pile slope adjusting, steel pipe pile primary driving, steel pipe pile sinking and penetration detecting. Through the construction steps, the slope and the position of the steel pipe pile and the accuracy of preset design can be improved.

Description

technical field [0001] The invention relates to the technical field of offshore piling construction, in particular to a pile sinking construction technology for super-long inclined rock-socketed piles on offshore caps. Background technique [0002] To carry out platform operations at sea, it is necessary to drive the platform foundation into the soil below the seawater. Compared with land construction, there is seawater pressure above the soil layer of offshore pile foundations, which makes the soil denser and has a stronger stress field, so it is more difficult to sink concrete pipe piles at sea. The surface of sandy soil is rough, and under high stress field, great frictional resistance will be generated in the process of sinking prefabricated piles, so this problem is more obvious in sandy soil layer. Therefore, steel piles are generally used for offshore pile foundations, which can minimize the frictional resistance of pile sinking compared with concrete pipe piles. In...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/00E02D7/06E02D13/04E02D13/06E02D5/28E02D9/04
CPCE02D7/00E02D7/06E02D13/04E02D13/06E02D5/285E02D9/04
Inventor 周艳清舒脊檩
Owner 湖北工业大学工程技术学院
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