A steel-concrete combined weight type offshore wind fan foundation structure
An offshore wind power and infrastructure technology, applied in wind turbine components, wind power generation, wind engines, etc., can solve the problems of small water depth range for concrete gravity structures, difficult construction technology of single pile structures, high cost of steel structures, etc. Achieve the effects of less construction difficulty, short construction period, and increased applicable water depth
Inactive Publication Date: 2009-09-30
OCEAN UNIV OF CHINA
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Problems solved by technology
[0009] 1. The applicable water depth range of the concrete gravity structure is small;
[0010] 2. The concrete gravity structure is only suitable for hard seabed, not for soft seabed and scoured seabed;
[0011] 3. The steel structure cost of offshore wind power infrastructure is high;
[0012] 4. The construction technology of single pile structure is difficult and the construction period is long
Method used
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0024] Such as figure 1 , 2 As shown, the basic structure of the steel-concrete combined gravity type offshore wind turbine according to the present invention includes a steel pipe column 1, a steel cap 2 is provided at the top of the steel pipe column 1, and a number of shaped steel concrete is evenly provided on the outer surface of the lower end of the steel pipe column 1. Rib 3, the outer end of shaped steel concrete rib 3 is fixed on the inner surface of polygonal shaped steel concrete base 4, the bottom surface of shaped steel concrete base 4 takes the center as the origin, and a number of ribs 5 are evenly arranged in the radial direction. The outer ends of the adjacent two ribs 5 are provided with skirts 6 , the height of the ribs 5 is the same as that of the skirts 6 , and the bottom surface of the shaped steel concrete base 4 is provided with a num...
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A steel-concrete combined weight type offshore wind turbine foundation structure relates to foundation structure of offshore wind turbine. The steel pipe vertical column is provided with steel bearing platform on the top; several section bar concrete rib boards are uniformly disposed at outer surface of lower end of steel pipe vertical column; outer end of section steel concrete rib board is fixed in inner surface of polygonal section steel concrete base; Several rib boards are uniformly and radially distributed around center origin of bottom surface of section steel concrete base; adjacent two rib boards has skirt at outer edge, height of rib board is identical with that of rib boards; bottom surface of section steel concrete base is provided with several grouting holes and anchor rod holes. The invention has reasonable structure, increases water depth applicability of weight type offshore wind turbine foundation structure, develops seabed applicability of weight type offshore wind turbine foundation structure and enables to adapt to soft base seabed and scouring seabed, reduces cost of offshore wind turbine foundation structure for 10-30 m depth adjacent sea. Compared with pile foundation structure, the offshore wind fan foundation structure has few construction difficulty and short construction period.
Description
technical field [0001] The invention relates to the basic structure of an offshore wind turbine, in particular to a steel-concrete combined gravity type foundation structure of an offshore wind turbine. Background technique [0002] The basic structure of offshore wind turbines is the key structure of offshore wind farm construction, and its cost determines whether offshore wind farms can realize grid-connected power generation and become an alternative energy source for traditional energy sources. [0003] At present, the basic structures of offshore wind turbines mainly include gravity structures, monopile structures, tripod structures, jacket structures and floating structures. Among them, the maximum water depth applicable to the gravity structure is 10m, the applicable water depth of the single pile structure is 10-30m, the applicable water depth of the tripod structure is 30-40m, the applicable water depth of the jacket structure is 40-50m, and the applicable water dep...
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IPC IPC(8): F03D11/00F03D13/25
CPCY02E10/722Y02E10/72Y02E10/727
Inventor 黄维平赵战华
Owner OCEAN UNIV OF CHINA