CN109914460A - A new type of suction cylinder-type combined structure wind power foundation suitable for shallow sea - Google Patents
A new type of suction cylinder-type combined structure wind power foundation suitable for shallow sea Download PDFInfo
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- CN109914460A CN109914460A CN201910147506.8A CN201910147506A CN109914460A CN 109914460 A CN109914460 A CN 109914460A CN 201910147506 A CN201910147506 A CN 201910147506A CN 109914460 A CN109914460 A CN 109914460A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 239000003351 stiffener Substances 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 9
- 238000010248 power generation Methods 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims description 12
- 239000013535 sea water Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
本发明公开了一种适用于浅海的新型吸力筒式组合结构风电基础，涉及风力发电技术领域。该体系包括中央桩、吸力筒，筒壁、顶盖、分仓板、钢加劲肋、塔筒连接段和栓钉。所述的吸力筒由筒壁和顶盖围合而成，并在筒内设置三块分仓板形成吸力筒空腔。筒壁、顶盖和分仓板均采用双层钢板混凝土，钢板与混凝土接触一侧焊接栓钉以加强连接。中央桩采用实心钢管混凝土或空钢管，桩顶、桩侧分别与顶盖、分仓板连接牢靠。顶盖上部设置塔筒连接段，并沿环向布置钢加劲肋，钢加劲肋与顶盖和塔筒连接段紧密连接。该体系充分发挥了组合结构的优势，受力合理，稳定性好，抗倾覆能力强，相比传统钢结构吸力筒基础用钢量更低，施工方便，具有广阔的工程应用前景。
The invention discloses a novel suction cylinder type combined structure wind power foundation suitable for shallow seas, and relates to the technical field of wind power generation. The system includes central piles, suction cylinders, cylinder walls, roofs, sub-silo slabs, steel stiffeners, tower connections and studs. The suction cylinder is enclosed by a cylinder wall and a top cover, and three sub-silo boards are arranged in the cylinder to form a suction cylinder cavity. The cylinder wall, top cover and sub-silo board are all made of double-layer steel plate concrete, and the steel plate and the concrete are welded with studs to strengthen the connection. The central pile is made of solid steel tube concrete or empty steel tube. A tower connection section is arranged on the upper part of the top cover, and steel stiffeners are arranged along the circumferential direction, and the steel stiffeners are closely connected with the top cover and the tower connection section. The system gives full play to the advantages of the combined structure, with reasonable stress, good stability, and strong anti-overturning ability.
Description
Technical field
The present invention relates to technical field of wind power generation.
Background technique
The wind-powered electricity generation energy is a kind of pollution-free, reproducible clean energy resource.China's offshore wind speed is abundant, offshore wind farm and land
On compare, wind turbine power generation amount is higher, runs more stable, and is not take up land resource, therefore offshore wind farm is China's wind power new energy
Following important development direction.
China sea area is mostly the unfavorable foundations such as bury and flour sand, and bearing capacity is lower, stability is poor, and marine wind environment
Complexity often faces the extreme sea conditions such as typhoon, and Limit of Wind Speed is larger, and traditional foundation structure form is by very big challenge.Therefore, it grinds
It is good to send out stability a kind of, and resistance to capsizing is strong, suitable for unfavorable foundation soil property and novel offshore wind power foundation easy for construction, is
Very necessary.
Summary of the invention
The present invention proposes a kind of novel suction cartridge type composite structure wind power foundation suitable for shallow sea: the system includes center
Stake, suction tube, barrel, top cover divide storehouse plate, steel ribbed stiffener, tower linkage section and peg.The system has given full play to composite structure
Advantage, reasonable stress, stability is good, and resistance to capsizing is strong, is suitable for unfavorable foundation soil property, compared to traditional steel construction suction tube
Basic steel using amount is lower, easy for construction, has wide future in engineering applications.
Technical scheme is as follows:
A kind of novel suction cartridge type composite structure wind power foundation suitable for shallow sea, the system include central post, suction tube,
Barrel, top cover divide storehouse plate, steel ribbed stiffener, tower linkage section and peg.
Suction tube is enclosed by barrel and top cover, and three pieces of points of storehouse plates are arranged in cylinder and form suction tube cavity, is utilized
Three cavity pressure differences adjust base water Pingdu.Barrel, top cover and a point storehouse plate are all made of double-layer plate concrete, and steel plate connects with concrete
Side weld stud is touched to reinforce connecting.The bottom end of barrel is made into pointed to be inserted into sea bed soil layer.
Central post using solid steel tube concrete or empty steel pipe, stake top, stake side respectively with top cover, that a point storehouse plate is connect is firm.
The bottom end of central post is made into pointed to be inserted into sea bed soil layer.
Tower linkage section is arranged in top cover top, and tower linkage section is below seawater face using real in 1/2~2/3 altitude range
Heart concrete filled steel tube.Top cover top circumferentially arranges that steel ribbed stiffener, steel ribbed stiffener are closely connect with top cover and tower linkage section.
The present invention has the advantages that compared with the existing technology
(1) combined structure system is used in basis, bearing capacity is high, and it is easy for construction, compared to traditional steel construction suction tube base
Plinth steel using amount is lower, saving construction cost.
(2) in combination with two kinds of basic advantages of suction tube and single pile: soil body collective effect in suction tube and cylinder, favorably
In resisting horizontal loading and deformation, reduce differential settlement；Central post can provide biggish pile side friction and end resistance, energy
It effectively improves vertical bearing capacity and reduces vertical deformation；By being reliably connected to form entirety, common stress and deformation have the two
Higher bearing capacity and resistance to capsizing.The foundational system can play good effect in the unfavorable foundation soil property in sea area.
(3) tower linkage section uses solid steel tube concrete below seawater face in 1/2~2/3 altitude range, can be improved
Overall structure rigidity；Top tower load Transmit evenly is conducive into base to basis by the steel ribbed stiffener circumferentially arranged
Plinth plays one's part to the full.
Detailed description of the invention
Fig. 1 is overall schematic of the invention (vertical, transverse cross-sectional view)；
Fig. 2 is suction tube barrel of the invention and top cover cross-sectional configuration figure；
Fig. 3 divides storehouse plate cross-sectional configuration figure for of the invention；
Fig. 4 is central post cross-sectional configuration figure of the invention；
Fig. 5 is the tower linkage section cross-sectional configuration figure in the present invention；
In figure: 1- central post, 2- suction tube, 3- barrel, 4- top cover, 5- divide storehouse plate, 6- steel ribbed stiffener, the connection of 7- tower
Section, 8- peg, 9- steel plate, 10- concrete.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, a kind of novel suction cartridge type composite structure wind power foundation suitable for shallow sea, which includes center
Stake (1), suction tube (2), barrel (3), top cover (4) divide storehouse plate (5), steel ribbed stiffener (6) and tower linkage section (7)；Suction tube
(2) it is enclosed by barrel (3) and top cover (4), and three pieces of points of storehouse plates (5) is set in cylinder and form suction tube cavity, utilize three
Cavity pressure difference adjusts base water Pingdu；Barrel (3), top cover (4) and a point storehouse plate (5) are all made of double-layer plate concrete, barrel (3)
Bottom end be made into it is pointed to be inserted into sea bed soil layer；Central post (1) is using solid steel tube concrete or empty steel pipe, stake top, stake side
Respectively with top cover (4), that a point storehouse plate (5) is connect is firm, the bottom end of central post (1) is made into pointed to be inserted into sea bed soil layer；Top cover
(4) top setting tower linkage section (7), tower linkage section (7) is below seawater face using solid in 1/2~2/3 altitude range
Concrete filled steel tube；Top cover (4) top circumferentially arranges steel ribbed stiffener (6), steel ribbed stiffener (6) and top cover (4) and tower linkage section
(7) close connection.
As shown in Fig. 2, the barrel (3) and top cover (4) of suction tube are made of two-layered steel plates (9) and intermediate concrete (10),
Steel plate (9) is with concrete (10) contact side weld stud (8) to reinforce connecting.
As shown in figure 3, storehouse plate (5) is divided to be made of two-layered steel plates (9) and intermediate concrete (10), steel plate (9) and concrete
(10) side weld stud (8) are contacted to reinforce connecting.
As shown in figure 4, two kinds of section forms of solid steel tube concrete or empty steel pipe can be used in central post (1).
As shown in figure 5, tower linkage section (7) uses solid steel tube coagulation below seawater face in 1/2~2/3 altitude range
Soil, to improve overall structure rigidity.
The invention proposes a kind of novel suction cartridge type composite structure wind power foundations suitable for shallow sea.The system is sufficiently sent out
The advantage of composite structure is waved, reasonable stress, stability is good, and resistance to capsizing is strong, is suitable for unfavorable foundation soil property, compared to tradition
Steel construction suction tube basis steel using amount is lower, easy for construction, has wide future in engineering applications.
The above is only the preferred embodiments of the invention, but the invention is not limited to above-mentioned specific implementations
Scheme.One skilled in the relevant art without departing from the principle of the present invention, can also make several modifications, supplement
Or use similar fashion substitution instead, these should also be regarded as protection scope of the present invention.
Although being used more herein: 1- central post, 2- suction tube, 3- barrel, 4- top cover, 5- points of storehouse plate, 6- steel add
The terms such as strength rib, 7- tower linkage section, 8- peg, 9- steel plate, 10- concrete, but the possibility using other terms is not precluded
Property.The use of these items is only for being more convenient to describe and explain essence of the invention, it is construed as any one
Additional limitation is disagreed with spirit of the invention.
Claims (4)
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| CN201910147506.8A CN109914460A (en) | 2019-02-27 | 2019-02-27 | A new type of suction cylinder-type combined structure wind power foundation suitable for shallow sea |
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| CN201910147506.8A CN109914460A (en) | 2019-02-27 | 2019-02-27 | A new type of suction cylinder-type combined structure wind power foundation suitable for shallow sea |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847217A (en) * | 2019-12-18 | 2020-02-28 | 长江勘测规划设计研究有限责任公司 | Composite foundation with piles distributed in cylinder-cylinder offshore wind power foundation and construction method |
| CN111636465A (en) * | 2020-05-29 | 2020-09-08 | 中铁大桥勘测设计院集团有限公司 | Integrated deepwater foundation and construction method thereof |
| CN113026798A (en) * | 2021-04-16 | 2021-06-25 | 上海勘测设计研究院有限公司 | Offshore wind power suction barrel foundation and shellfish and algae raft frame combined structure and construction method thereof |
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| CN111636465B (en) * | 2020-05-29 | 2021-11-30 | 中铁大桥勘测设计院集团有限公司 | Integrated deepwater foundation and construction method thereof |
| CN113026798A (en) * | 2021-04-16 | 2021-06-25 | 上海勘测设计研究院有限公司 | Offshore wind power suction barrel foundation and shellfish and algae raft frame combined structure and construction method thereof |
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Application publication date: 20190621 |