Telescopic pile casing for offshore wind power single pile rock-socketed construction and operation method

A technology of offshore wind power and operation methods, which is applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as easy hole collapse, short effective operation time, and large sea waves, so as to improve efficiency, speed up construction progress, and facilitate The effect of demolition

Inactive Publication Date: 2019-05-21
CCCC FIRST HARBOR ENG
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Problems solved by technology

The rock-socketed construction of offshore wind power single piles has to face problems such as large sea waves, short effective operation time, and easy hole collapse during drilling.

Method used

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  • Telescopic pile casing for offshore wind power single pile rock-socketed construction and operation method
  • Telescopic pile casing for offshore wind power single pile rock-socketed construction and operation method

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Embodiment Construction

[0016] The following will be combined with figure 1 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] The present invention provides a retractable casing for offshore wind power single pile rock-socketed construction through improvement, such as Figure 1-2 As shown, it can be implemented in the following manner: the retractable casing is divided into two parts, the outer casing 1 and the inner casing 3; the inner casing 3 is sleeved on the inner side of the outer casing 1, and the casing guide rail The assembly is an integral structure; the ca...

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Abstract

The invention provides a telescopic pile casing for offshore wind power single pile rock-socketed construction and an operation method. The telescopic pile casing comprises an outer pile casing, an outer pile casing guide rail, an inner pile casing, an inner pile casing guide rail, an inner pile casing follow-up device, an inner pile casing lifting lug, a jack and an inner pile casing limiting ring. The inner pile casing moves in the outer pile casing through the guide rail. A propelling device installed on a drill rod presses the inner pile casing downwards through the limiting ring welded tothe inner pile casing, so that the inner pile casing follows along with a drill bit, and hole collapse can be effectively prevented and controlled. The inner pile casing is connected with the jack ofa platform through a steel wire rope and is used for mounting, lifting and dismounting the inner pile casing. The construction method is used for aspects of offshore wind power single pile rock embedding, side wall grouting, single pile implanting and the like, and has the advantages of preventing hole collapse, accelerating the construction progress, being convenient to dismantle, being reusable, reducing cost, improving benefits and the like.

Description

technical field [0001] The invention relates to the field of wind power, in particular to a retractable casing used for single pile rock-socketed construction of offshore wind power and an operation method thereof. Background technique [0002] In recent years, with the development and application of new technologies, new processes and new materials for offshore wind power, offshore wind power, which has the characteristics of abundant resources, high utilization hours of power generation, does not occupy land, does not consume water resources, and is suitable for large-scale development, is in the infancy. rapid development stage. The rock-socketed construction of offshore wind power single piles has to face problems such as large sea waves, short effective operation time, and easy hole collapse during drilling. [0003] After analysis, it is found that the traditional casing is a single-layer structure, which cannot follow up with the drill bit, and it is easy to collapse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/68E02D13/02E02D13/04E02D27/42
Inventor 毛以雷申振华杜瑞刚王博田博宇史栋栋
Owner CCCC FIRST HARBOR ENG
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