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Polygonal offshore wind power barrel-shaped foundation

A polygonal and wind torch technology, applied in infrastructure engineering, construction, etc., can solve the problems of insufficient utilization of material properties and difficult processing, etc., and achieve the effect of shortening construction operation time, reducing processing difficulty, and reducing construction costs

Inactive Publication Date: 2016-10-26
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most offshore wind turbine foundations are cylindrical structures, which are difficult to process; at the same time, when the top cover of the single-tube foundation contacts the seabed mud surface, the middle part of the top cover can only provide a small amount of resistance to the bending moment of the wind turbine. performance is not fully utilized

Method used

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  • Polygonal offshore wind power barrel-shaped foundation
  • Polygonal offshore wind power barrel-shaped foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment discloses a polygonal offshore wind turbine foundation, which is composed of a polygonal cylindrical structure at the lower part and a truss structure at the upper part, and the whole is a steel structure.

[0024] The polygonal cylindrical structure is composed of main beam 1, secondary beam 2, top cover 3 and cylinder wall 4.

[0025] The top cover 3 and the cylinder wall 4 form a semi-sealed structure with a lower opening, so that the polygonal cylinder structure can be installed by sinking under negative pressure. The cylinder wall 4 includes multiple identical inner walls, identical external walls and multiple identical side walls, and the numbers of the inner walls, outer walls and side walls are consistent, generally 3-8. A plurality of inner walls encloses a polygonal structure, and a plurality of outer walls are arranged parallel to the plurality of inner walls to form a polygonal structure. The connecting lines of adjacent inner walls and the c...

Embodiment 2

[0036] Such as figure 1 and figure 2 As shown, this embodiment discloses a polygonal offshore wind turbine foundation, which is composed of a polygonal cylindrical structure at the lower part and a truss structure at the upper part, and the whole is a steel structure.

[0037]The polygonal cylindrical structure of this embodiment consists of a main beam 1, a secondary beam 2, a top cover 3 and a cylindrical wall 4. The regular hexagonal cylindrical structure has an outer side length of 18500 mm and an inner side length of 11000 mm. The barrel wall 4 includes the same six inner walls, the same six outer walls and the same six side walls. The six inner walls and the six outer walls respectively form a hexagonal structure, and the six outer walls are arranged parallel to the six inner walls on the outside thereof, and a piece of welding is welded between the connecting lines of the adjacent inner walls and the corresponding connecting lines of the adjacent outer walls. side wa...

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Abstract

The invention relates to an offshore wind power foundation structure, and discloses a polygonal offshore wind power barrel-shaped foundation. The polygonal offshore wind power barrel-shaped foundation is composed of a polygonal barrel-shaped structure on the lower portion and a truss structure on the upper portion. The polygonal barrel-shaped structure is of a semi-sealed structure with an opening in the lower portion, wherein the semi-sealed structure is composed of a barrel wall and a top cover. Primary beams and secondary beams are arranged on the upper surface of the top cover. The truss structure comprises a transition segment arranged above the center of the polygonal barrel-shaped structure. Supporting steel pipes are annularly and evenly arranged with the transition segment as the center. The bottom ends of the supporting steel pipes are fixed to the inner side of the polygonal barrel-shaped structure. The upper portion of each supporting steel pipe is fixedly connected with the transition segment through an upper connecting steel pipe and a lower connecting steel pipe. The polygonal offshore wind power barrel-shaped foundation is suitable for the soft layer marine geology condition that the surface layer of a seabed has large thickness; the polygonal offshore wind power barrel-shaped foundation is simple in structure, safe and reliable, can be overall prefabricated on land and has self-floating capacity; quick sinking mounting is carried out through negative pressure; construction efficiency and quality are effectively improved; the construction cost is reduced; and the development of the offshore wind power industry of our country is promoted.

Description

technical field [0001] The invention relates to an offshore wind power foundation structure, in particular to a polygonal offshore wind power cylinder foundation. Background technique [0002] As a green, clean and renewable energy, wind energy has been favored by energy developers in various countries. At present, one of the bottlenecks restricting the large-scale development of offshore wind power in my country is the lack of an economically safe offshore wind power infrastructure suitable for my country's ocean characteristics. There are various types of offshore wind power foundation structures, including multi-pile jackets, single piles, tripod foundations, gravity foundations, barrel foundations, and floating foundations. [0003] The barrel foundation is a form of foundation structure suitable for soft soil foundations. It uses a combination of self-weight and negative pressure to quickly complete offshore installation work, which is very attractive to wind farms wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42
CPCE02D27/425
Inventor 王海军周小日练继建
Owner TIANJIN UNIV