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Offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and construction method thereof

An offshore wind power and foundation structure technology, applied in foundation structure engineering, construction, etc., can solve problems such as difficulty in applying the suction barrel jacket foundation, increased pile diameter and pile length, and high amount of steel used in the foundation, so as to reduce anti-scouring protection The effect of engineering quantity, reducing pile length and pile diameter, and optimizing foundation steel consumption

Pending Publication Date: 2020-05-05
POWERCHINA HUADONG ENG COPORATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, there are soft soil layers such as muddy clay with a thickness of more than 20 meters on the surface of the seabed in some coastal areas of China. The bearing capacity of the foundation is poor, and shallow foundations such as suction bucket jacket foundations are difficult to apply; The diameter and length of the pile will be increased accordingly, and the amount of steel used for the foundation will be higher

Method used

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  • Offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and construction method thereof
  • Offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and construction method thereof
  • Offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and construction method thereof

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Embodiment Construction

[0033] Such as figure 1 , figure 2 As shown, this embodiment is an offshore wind power multi-pile-suction barrel 2-jacket foundation structure, which has a jacket 1, the top of the jacket 1 is connected to the wind tower, and the lower end of the jacket 1 is supported on the top of four suction barrels 2. The four suction buckets 2 are evenly distributed and fixed by welding with the jacket 1 .

[0034] In this example, the axis of the suction bucket 2 is arranged parallel to the axis of the fan tower, and a guide sleeve 4 arranged concentrically and coaxially with the suction bucket 2 is formed on the top of the suction bucket 2. The guide sleeve 4 and the jacket 1 are connected through a connecting rod 11. connected. A ring flange 7 is formed on the upper end of the guide sleeve 4 , and the lower end of the guide sleeve 4 extends to the bucket top of the suction bucket 2 and communicates with the suction bucket 2 .

[0035] In this embodiment, the jacket 1 is supported o...

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Abstract

The invention relates to an offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and a construction method thereof. The offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and the construction method thereof are simple in structure, convenient to construct, low in cost, safe and stable. According to the technical scheme, the offshorewind-driven generator multi-pile-suction barrel-jacket foundation structure is characterized in that a plurality of suction barrels are uniformly arranged at the bottom of a jacket, wherein guide sleeves communicating with the interiors of the suction barrels are arranged in the centers of the tops of the suction barrels; the jacket is supported on a seabed through the suction barrels and fixed to the seabed through steel pipe piles inserted into the guide sleeves and driven into the seabed; and high-strength grouting materials are poured into gaps between the guide sleeves and the steel pipepiles. The offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and the construction method thereof are suitable for the technical field of ocean engineering.

Description

technical field [0001] The invention relates to an offshore wind power multi-pile-suction barrel-jacket foundation structure and a construction method thereof. Applicable to the field of marine engineering technology. Background technique [0002] Wind power generation is one of the most mature, large-scale and commercialized power generation methods in the field of new energy. Compared with onshore wind farms, offshore wind farms have attracted more and more attention from developed countries due to their superior wind resources, environmental protection, land saving, and large scale. Germany, the United Kingdom, Denmark and other countries have listed the construction of offshore wind farms. It will be the focus of large-scale wind power development in the future. [0003] At present, the common types of foundations for offshore wind turbines are gravity foundations, single pile foundations, multi-pile jacket foundations, high pile cap foundations, suction bucket jacket ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42
CPCE02D27/425
Inventor 李涛许光明张杰王滨朱彬彬吕娜
Owner POWERCHINA HUADONG ENG COPORATION LTD
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