CN103758146B - A kind of jacket-tubular construction combined type offshore wind turbine foundation - Google Patents
A kind of jacket-tubular construction combined type offshore wind turbine foundation Download PDFInfo
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- CN103758146B CN103758146B CN201410049406.9A CN201410049406A CN103758146B CN 103758146 B CN103758146 B CN 103758146B CN 201410049406 A CN201410049406 A CN 201410049406A CN 103758146 B CN103758146 B CN 103758146B
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Abstract
A kind of jacket-tubular construction combined type offshore wind turbine foundation, be made up of cylindrical foundation part and jacket part, cylindrical foundation part comprises cylindrical shape steel wall, concrete cover, prestressed girder and linking beam, and concrete cover, prestressed girder, linking beam are built and connected for overall; Jacket part comprises steel leg post, bracing members pipe, connecting cylinder and flange, is welded and fixed between steel leg post and connecting cylinder respectively by bracing members pipe; Four steel leg posts are fixed in the middle part of the linking beam 4 of concrete cover; Connecting cylinder is connected with blower fan tower barrel by flange.Advantage of the present invention is: the jacket-tubular composite construction of this offshore wind turbine foundation adopts top board bearing mode, can improve the ability of the resist torque on whole basis significantly, reduce the requirement to bearing capacity of foundation soil; Adopt negative pressure to sink to laying, speed of application is fast; Total bank is integral prefabricated and assembled, offshore integral transportation by driving, and marine negative pressure sinks to installing, and easy construction, efficiency is high, and cost is low.
Description
Technical field
The present invention relates to offshore wind turbine foundation structure, particularly a kind of jacket-tubular construction combined type offshore wind turbine foundation.
Background technology
Wind energy has been subject to the favor of various countries energy development person as green clean reproducible energy, offshore wind farm more in wind energy engineering in occupation of very important position.Maritime environment is complicated and changeable, and the safety of foundation structure, economy and compliance restrict the key factor that offshore wind farm develops.In the construction of at sea wind energy turbine set, foundation structure is the most important thing.Offshore wind power foundation structural shape is varied, comprises many pile leaders frame, single pile, tripod basis, gravity type foundation, cylindrical foundation and floatation type basis etc.
Jacket wind turbine foundation is a kind of important base form of offshore wind turbine foundation, and this base form is ripe application in the construction of deep-sea production platform, and the type basis is applicable to the offshore wind farms of the depth of water more than 30m.Compound bucket foundation is a kind of foundation structure form of applicable soft foundation, and its mode adopting deadweight and negative pressure to combine can complete Attention problems work fast, and this wind energy turbine set short to offshore construction window phase has very large attraction.Traditional jacket basis relates to marine pile sinking, and construction period is longer.Compound cartridge type basic transition section is concrete structure, inside establishes large-tonnage presstressed reinforcing steel, how to guarantee that its structure durability is a difficult problem under marine environment.In order to avoid these two kinds basic deficiencies, propose a kind of composite guide pipe support basis, two kinds of basic advantages are combined, builds to efficient, the safety realizing offshore wind power foundation.
Summary of the invention
Object of the present invention is intended to for above-mentioned existing problems, a kind of jacket-tubular construction combined type offshore wind turbine foundation is provided, compound bucket foundation combines with jacket basis by this offshore wind turbine foundation, give full play to the advantage that both are respective: adopt the quick sinking construction of negative pressure, realize offshore wind turbine foundation Fast Installation; Utilize the changeover portion based on jacket steel work, improve the durability under complicated sea situation; The wind field design life-span, when arriving, utilizes the reverse operation of sinking, can the extracting fast and remove of optimized integration structure, and realizes " zero is remaining " of marine engineering.
Technical scheme of the present invention:
A kind of jacket-tubular construction combined type offshore wind turbine foundation, be made up of cylindrical foundation part and jacket part, cylindrical foundation part comprises cylindrical shape steel wall, concrete cover, prestressed girder and linking beam, concrete cover is arranged at cylinder shaped steel wall top, cylindrical shape steel wall embeds in concrete cover, prestressed girder is arranged on concrete cover, prestressed girder radial direction is evenly arranged 3-8 root, linking beam is arranged between two prestressed girders and hoop is evenly arranged, and concrete cover, prestressed girder, linking beam are built and connected for overall; Jacket part comprises steel leg post, bracing members pipe, connecting cylinder and flange, vertical or the oblique even setting of four steel leg posts, the angle of steel leg post and vertical center line is 0-30 °, between two steel leg posts, be welded and fixed respectively by bracing members pipe between steel leg post and connecting cylinder, center, four steel leg column tops is provided with connecting cylinder and is welded and fixed by bracing members pipe; Four steel leg posts are fixed in the middle part of the linking beam of concrete cover; Connecting cylinder is connected with blower fan tower barrel by flange.
The invention has the beneficial effects as follows:
This offshore wind turbine foundation adopts jacket-tubular composite construction, the axial load of blower foundation is born by compound cylinder-shaped foundation structure and passes to ground, the horizontal loading that the environmental loads such as stormy waves stream produce and moment of flexure are by jacket and composite tube structure shared, because jacket-tubular composite construction adopts top board bearing mode, the ability of the resist torque on whole basis can be improved significantly, thus the requirement to bearing capacity of foundation soil can be reduced; Composite tube adopts negative pressure to sink to laying, and speed of application is fast; Seawater Zhong Jilangjian district adopts jacket structure, can guarantee the durability of structure; Total bank is integral prefabricated and assembled, offshore integral transportation by driving, and marine negative pressure sinks to installing, easy construction, and efficiency is high, and cost is low; The wind field design life-span, when arriving, utilizes the reverse operation of sinking, can the extracting fast and remove of optimized integration structure, and realizes " zero is remaining " of marine engineering.
Accompanying drawing explanation
The main TV structure schematic diagram of this offshore wind turbine foundation of Fig. 1.
This offshore wind turbine foundation plan structure schematic diagram of Fig. 2.
In figure: 1. cylindrical shape steel wall 2. concrete cover 3. prestressed girder 4. linking beam
5. steel leg post 6. bracing members pipe 7. connecting cylinder 8. flange 9. blower fan tower barrel.
Detailed description of the invention
Embodiment:
A kind of jacket-tubular construction combined type offshore wind turbine foundation, be made up of cylindrical foundation part and jacket part, cylindrical foundation part comprises cylindrical shape steel wall 1, concrete cover 2, prestressed girder 3 and linking beam 4, concrete cover 2 is arranged at cylinder shaped steel wall 1 top, cylinder shaped steel wall 1 embeds in concrete cover 2, prestressed girder 3 is arranged on concrete cover 2, prestressed girder 3 radial direction is evenly arranged 4, linking beam 4 is arranged between two prestressed girders 3 and hoop is evenly arranged, and concrete cover 2, prestressed girder 3, linking beam 4 are built and connected for overall; Jacket part comprises steel leg post 5, bracing members pipe 6, connecting cylinder 7 and flange 8, vertical or the oblique even setting of four steel leg posts 5, steel leg post 5 is 0-30 ° with the angle of vertical center line, between two steel leg posts 5, be welded and fixed respectively by bracing members pipe 6 between steel leg post 5 and connecting cylinder 7, four steel leg post 5 top center are provided with connecting cylinder 7 and are welded and fixed by bracing members pipe 6; Four steel leg posts 5 are fixed in the middle part of the linking beam 4 of concrete cover 2; Connecting cylinder 7 is connected with blower fan tower barrel 9 by flange 8.
In this embodiment, flexible shaped steel wall diameter is 30m, thickness is 20mm; Concrete cover diameter 30.5m, thickness 0.3m; Prestressing force deck-siding 0.6m, high 1 m; Link deck-siding 1.2m, high 1m; Steel leg column diameter 0.8m, thick 25mm, long 15m, the angle of steel leg post and axis is 7.125 degree; Bracing members pipe diameter 0.5m, thick 15mm; Connecting cylinder diameter 4m, thick 35mm, high 2m.
Specific construction step: 1) prefabricated barrel structure and jacket structure; 2) by special construction ship by base integral transportation by driving to infield; 3) by negative pressure, foundation immersion is put in place, the levelness on basis during sinking, will be controlled; 4) lifting dress blower fan tower barrel and blower fan.
Claims (1)
1. jacket-tubular construction combined type offshore wind turbine foundation, it is characterized in that: be made up of cylindrical foundation part and jacket part, cylindrical foundation part comprises cylindrical shape steel wall, concrete cover, prestressed girder and linking beam, concrete cover is arranged at cylinder shaped steel wall top, cylindrical shape steel wall embeds in concrete cover, prestressed girder is arranged on concrete cover, prestressed girder radial direction is evenly arranged 3-8 root, linking beam is arranged between two prestressed girders and hoop is evenly arranged, and concrete cover, prestressed girder, linking beam are built and connected for overall; Jacket part comprises steel leg post, bracing members pipe, connecting cylinder and flange, vertical or the oblique even setting of four steel leg posts, the angle of steel leg post and vertical center line is 0-30 °, between two steel leg posts, be welded and fixed respectively by bracing members pipe between steel leg post and connecting cylinder, center, four steel leg column tops is provided with connecting cylinder and is welded and fixed by bracing members pipe; Four steel leg posts are fixed in the middle part of the linking beam of concrete cover; Connecting cylinder is connected with blower fan tower barrel by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049406.9A CN103758146B (en) | 2014-02-13 | 2014-02-13 | A kind of jacket-tubular construction combined type offshore wind turbine foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049406.9A CN103758146B (en) | 2014-02-13 | 2014-02-13 | A kind of jacket-tubular construction combined type offshore wind turbine foundation |
Publications (2)
| Publication Number | Publication Date |
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| CN103758146A CN103758146A (en) | 2014-04-30 |
| CN103758146B true CN103758146B (en) | 2015-09-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196053B (en) * | 2014-08-21 | 2017-02-01 | 中国海洋石油总公司 | Simple cylindrical foundation platform capable of being installed separately |
| CN110397064B (en) * | 2019-06-28 | 2024-03-19 | 天津大学 | Combined annular tube jacket foundation structure and construction method thereof |
| CN110439018A (en) * | 2019-08-02 | 2019-11-12 | 中交第四航务工程勘察设计院有限公司 | A kind of new plug-in steel cylinder wind power foundation |
| CN111779020A (en) * | 2020-06-28 | 2020-10-16 | 中国电建集团华东勘测设计研究院有限公司 | Novel all-steel cylindrical foundation structure for offshore wind power |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798815A (en) * | 2010-01-29 | 2010-08-11 | 道达(上海)风电投资有限公司 | Marine wind turbine foundation for steel-concrete combined structure |
| CN202767094U (en) * | 2012-10-09 | 2013-03-06 | 国电联合动力技术有限公司 | Skirt pile foundation for offshore wind turbines |
| CN102995655A (en) * | 2012-12-16 | 2013-03-27 | 天津大学 | Cylindrical structure and pile group combined type offshore wind turbine foundation |
| GB2502876A (en) * | 2012-04-11 | 2013-12-11 | Offshore Group Newcastle Ltd | Support structure installation, eg for offshore wind turbines |
| CN103469808A (en) * | 2013-09-24 | 2013-12-25 | 广东明阳风电产业集团有限公司 | Offshore wind turbine foundation integrating concrete caisson and jacket |
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2014
- 2014-02-13 CN CN201410049406.9A patent/CN103758146B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798815A (en) * | 2010-01-29 | 2010-08-11 | 道达(上海)风电投资有限公司 | Marine wind turbine foundation for steel-concrete combined structure |
| GB2502876A (en) * | 2012-04-11 | 2013-12-11 | Offshore Group Newcastle Ltd | Support structure installation, eg for offshore wind turbines |
| CN202767094U (en) * | 2012-10-09 | 2013-03-06 | 国电联合动力技术有限公司 | Skirt pile foundation for offshore wind turbines |
| CN102995655A (en) * | 2012-12-16 | 2013-03-27 | 天津大学 | Cylindrical structure and pile group combined type offshore wind turbine foundation |
| CN103469808A (en) * | 2013-09-24 | 2013-12-25 | 广东明阳风电产业集团有限公司 | Offshore wind turbine foundation integrating concrete caisson and jacket |
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| CN103758146A (en) | 2014-04-30 |
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