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Offshore wind power foundation consisting of single pile and cylindrical foundations

A cylindrical foundation, offshore wind power technology, applied in foundation structure engineering, sheet pile walls, buildings, etc., can solve the problems of increasing construction difficulty, increasing diameter and wall thickness, increasing costs, etc.

Inactive Publication Date: 2013-07-31
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the single pile type is adopted, the diameter and wall thickness of the pile will increase significantly, which not only increases the cost, but also increases the difficulty of construction

Method used

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  • Offshore wind power foundation consisting of single pile and cylindrical foundations
  • Offshore wind power foundation consisting of single pile and cylindrical foundations

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Embodiment Construction

[0016] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0017] as attached figure 1 As shown in -2, an offshore wind power foundation structure composed of a single pile and a cylindrical foundation: it mainly includes a single-pipe steel pile, multiple cylindrical foundations and connecting steel pipes. The cylindrical foundations are evenly distributed on the circumference with the single pile as the center, the cylindrical foundations and the cylindrical foundation and the single pile are connected by connecting steel pipes, and the top of the single pile is connected to the wind force through the flange plate. Machine tower connection.

[0018] The number of connecting steel pipes is the same as that of the cylindrical foundation, which is 3. The angle between the connecting steel pipe and the single pile between the cylindrical foundation and the single pile is 30-60°, preferably 40-50°. The co...

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Abstract

The invention discloses an offshore wind power foundation consisting of a single pile and cylindrical foundations. The cylindrical foundations are uniformly distributed on the circumference which takes the single pile as the center of a circle; the single pile is a steel pipe pile; the cylindrical foundations and the cylindrical foundations and the single pile are connected through connecting steel pipes through welding; and the top of the single pile is connected with a wind turbine tower through a flange plate. According to the technical scheme, a novel foundation type consisting of the single pile and the cylindrical foundations through the connecting steel pipe is given, the resistance of shallow soil on the earth surface is fully exerted through the cylindrical foundations and the connecting steel pipe, the bending moment resistance of the single pile structure is enhanced, and the displacement of the pile body is reduced, so that the aim of reducing the diameter and thickness of the single pile is fulfilled.

Description

technical field [0001] The invention belongs to the technical field of offshore wind power foundations, and more specifically relates to a type of offshore wind power foundation combined with a plurality of cylindrical foundations and single piles. Background technique [0002] In the construction of offshore wind farms, the foundation structure is the top priority, which mainly has the following three characteristics: first, the cost of the foundation structure accounts for a relatively high proportion of the total cost; Jacket, single pile, etc.); third, the environment is complex (dynamic cycle loads such as wind, waves, and currents). [0003] The monopile foundation is usually composed of a single large-diameter steel pipe. The lower part is deep into the soil to provide bearing capacity; the middle part is immersed in water to withstand long-term cycles such as waves, ocean currents and tides; the upper part is connected to the wind turbine tower through a connecting s...

Claims

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Application Information

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IPC IPC(8): E02D27/42E02D27/52E02D27/12E02D5/74E02D5/80
Inventor 王海军奚泉练继建
Owner TIANJIN UNIV
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