CN202767094U - Skirt pile foundation for offshore wind turbines - Google Patents
Skirt pile foundation for offshore wind turbines Download PDFInfo
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- CN202767094U CN202767094U CN 201220515204 CN201220515204U CN202767094U CN 202767094 U CN202767094 U CN 202767094U CN 201220515204 CN201220515204 CN 201220515204 CN 201220515204 U CN201220515204 U CN 201220515204U CN 202767094 U CN202767094 U CN 202767094U
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Abstract
The utility model relates to a skirt pile foundation for offshore wind turbines. The skirt pile foundation for offshore wind turbines comprises a joint section steel cylinder, a guide tube rack support and skirt piles. The lower end of the joint section steel cylinder is fixedly connected onto the guide tube rack support, and the upper end of the joint section steel cylinder is fixedly connected onto a wind turbine tower. The guide tube rack support is a frame composed of more than three leg tubes and support tubes for transversely connecting the leg tubes in pairs, and one to four hollow grouting casings are fixedly connected to the lower end of each leg tube. One skirt pile is nested in each grouting casing, the upper end of the skirt pile is fixed to the grouting casing, and the lower end of the skirt pile is fixed a seabed bearing stratum. Bearing capacity of the skirt pile foundation for offshore wind turbines is greatly improved, an offshore wind turbine can be installed in sea areas tens of meters to 100 meters in depth, a large wind turbine generator few megawatts and even more than tend megawatts in power can be supported, and power generating efficiency is greatly improved. The piles are small in diameter, so that the skirt pile foundation for offshore wind turbines is convenient to construct and install.
Description
Technical field
The utility model relates to a kind of basis of offshore wind turbine, specifically relates to a kind of offshore wind turbine skirt piles basis.
Background technology
The Oversea wind aboundresources.Usually the marine wind speed of offshore 10km exceeds 25% than bank is land, and the wind resource in zone, deep-sea is than greater coasting area horn of plenty more.According to statistics, U.S. marine site reaches 1533GW in the Oversea wind resource at the depth of water 60～900m place, and the waters of coastal waters 0～30m only has 430GW.According to the research of the mechanisms such as Energy Research Institute of the National Development and Reform Commission, CHINESE OFFSHORE 10m, 20m and the 30m depth of water are about respectively 1 * 10 with interior marine site wind energy resources
8KW, 3 * 10
8KW and 4.9 * 10
8KW.Calculate in proportion, the offshore wind energy resource at deep-sea 60～900m place will approximately have l 7.4 * 10
8KW.The Oversea wind power generation development prospect is wide.
The exploitation of Oversea wind power generation just is the fully different of its basis from one of the remarkable difference on land, offshore wind turbine foundation is in the environment of wind, wave, stream and ice action, and offshore wind turbine must be equipped the large unit of single-machine capacity to reduce cost, therefore the design of offshore wind turbine foundation not only is related to cost of investment, and is related under arms interior safety of phase of total.
Offshore wind turbine foundation is to cause one of high factor of offshore wind farm cost, will consider the geologic structure situation of sea bed during design, offshore distance, the impact of sea turn wave load characteristic and ocean current, ice etc.The offshore wind turbine foundation structure has gravity structure, such as Shanghai Donghai Bridge wind energy turbine set, what adopt is namely to be the reinforced concrete structure of High-Rise Pile Cap Foundation, by on the firm sea bed of sole mass, it is not only bulky, and quality need to increase along with the increase of the depth of water, the infrastructure expense is corresponding increase also, usually being only applicable to the depth of water is the 0-10m place, and its wind turbine pool-size that can carry is less, only is 3MW.
Offshore wind turbine foundation also has the pile foundation stationary structure, comprises single column, single column three pileworks, four leg's jackets structure etc.The most of marine wind electric field that has built up has all adopted single upright post basic, and single upright post basic pile body can directly be connected with pylon, or connects by changeover portion, and it is comparatively responsive to vibration and verticality, and that designs and construct has relatively high expectations; Single column three pileworks are similar to the simple platform of marginal oil field, and three piles are connected with center stand column by a triangle steelframe, and blower fan pylon is connected to and forms a structural entity on the column; The concept of fixed platform has been used for reference on the four leg's jackets basis fully, has adopted the larger form of structure of rigidity, and the applicable depth of water of pile foundation stationary structure is 0-50m.The Jiangsu Rudong intertidal belt wind electric field adopts is the bases such as common three, four, and stake is directly squeezed into ocean bottom soil by upper support leg pipe, leg pipe and a stake gap perfusion grouting agent, and the wind turbine pool-size is all below 3MW.
The development of ultra-large type offshore wind turbine.The operation of having rolled off the production line of the large capacity wind-powered electricity generation unit of 5MW and 6MW, many wind-powered electricity generation enterprises are all at development 10MW and above vast capacity wind-powered electricity generation unit, and combined power being is is being researched and developed 12MW high-temperature superconductor offshore wind turbine.The wind-powered electricity generation unit of these vast capacities is fit to be installed in deep water sea area.And the offshore wind turbine foundation that can carry large capacity wind-powered electricity generation unit just becomes this area problem demanding prompt solution.
Summary of the invention
For the defective of prior art, the purpose of this utility model provides a kind of 10-100 of being applicable to rice depth of water marine site, the offshore wind turbine skirt piles basis that the 3MW-12MW offshore wind turbine uses.
For reaching above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of offshore wind turbine skirt piles basis comprises that linkage section steel cylinder, jacket support and skirt piles, and the lower end of linkage section steel cylinder is fixedly connected on jacket and supports, upper end and blower fan tower barrel Joint; Jacket supports the support body that is comprised of the leg pipe more than 3 and stay pipe that the leg pipe is laterally connected in twos, and the lower end of every leg pipe all is connected with the grouting sleeve of 1-4 root hollow; Skirt piles are set in the grouting sleeve, its upper end and grouting sleeve concrete mutually, and the lower end is fixed in the bearing stratum of seabed.
The utility model also can further be realized by the following technical programs:
Described offshore wind turbine skirt piles basis, wherein, described grouting sleeve is fixed together by junction plate with the leg pipe that jacket supports, equidistantly distribute along leg pipe outside semi-circumference equal angles, between leg pipe and grouting sleeve apart from being three times of leg pipe diameter.
Described offshore wind turbine skirt piles basis, wherein, described grouting sleeve and skirt piles adopt grouting agent to fill and are consolidated.
Described offshore wind turbine skirt piles basis, wherein, described stay pipe comprises at least horizontal stay tube of one deck.
Described offshore wind turbine skirt piles basis, wherein, described stay pipe also comprises at least down tube of one deck.
Described offshore wind turbine skirt piles basis, wherein, described horizontal stay tube and/or inclination stay tube are the rounded equal diameter of cutting plane or the body that straightens the footpath.
Described offshore wind turbine skirt piles basis, wherein, described connection steel cylinder upper end is fixedly connected with the tower cylinder by flange, connects steel cylinder top and is provided with inspection platform.
Described offshore wind turbine skirt piles basis, wherein, described leg pipe is the 3-6 root, vertically setting or bottom tilt slightly laterally.
Described offshore wind turbine skirt piles basis, wherein, described linkage section steel cylinder is the equal diameter circular cylinder body or straightens the footpath circular cylinder body, is fixedly mounted on the stay pipe of jacket support, the cylindrical shell end face is higher than 1/2 height that highest water level adds wave height.
Described offshore wind turbine skirt piles basis, wherein, the diameter of described skirt piles is Φ 1000-Φ 2000mm; Described leg pipe diameter is Φ 1200-Φ 2500mm; Described stay pipe diameter is Φ 300-Φ 1500mm.
During concrete the installation, jacket supports and skirt piles can be distinguished by land processing factory's processing and fabricating, is connected and fixed in aggregates between jacket support and the grouting sleeve with steel plate.Transport to on-the-spot marine site with boats and ships, place first jacket and support, leveling is complete, with pile driving barge skirt piles are squeezed into ocean bottom soil along the center of grouting sleeve, then at the gap of skirt piles and grouting sleeve perfusion grouting agent, after grouting agent solidified, jacket supported with skirt piles and just is bonded together securely.
Owing to having adopted above technical scheme, the utility model possesses following technique effect:
1), offshore wind turbine skirt piles of the present utility model are basic, be provided with skirt piles every leg pipe bottom, a plurality of skirt piles support by grouting agent and jacket and are consolidated, can greatly improve the supporting capacity of offshore wind turbine foundation, offshore wind turbine can be installed to the marine site of about tens meters even 100 meters of the depth of waters, can support the large-scale wind electricity unit of several megawatts even tens megawatts, greatly improve generating efficiency;
2), offshore wind turbine skirt piles of the present utility model bases, compare with common pile foundation, the diameter of stake is less, construction, easier for installation;
3), offshore wind turbine skirt piles of the present utility model bases, also inspection platform can be set, make things convenient for staff's regular maintenance and service work.
Description of drawings
Fig. 1 is the structural representation on the utility model offshore wind turbine skirt piles basis;
Fig. 2 is the plan structure schematic diagram on the utility model offshore wind turbine skirt piles basis.
The specific embodiment
Shown in Fig. 1-2, be the steel framework foundation structure of the triangle pattern that is applied to the offshore wind farm unit, it comprises 3 jacket supporting leg pipes 3,25 meters of supporting leg tube pitch, 1.8 meters of supporting leg pipe diameters.The grouting sleeve 2 of every equidistant affixed 3 hollows of leg pipe 3 outside semi-circumference equal angles, grouting sleeve 2 links together by steel plate 4 with leg pipe 3.Horizontal support 5 links to each other leg pipe 3 in twos with bearing diagonal 6 and forms support body.Are connected with bearing diagonal and are connected with linkage section steel cylinder 9 by horizontal support 7 in the top of leg pipe 3.Linkage section steel cylinder 9 tops are provided with inspection platform, and the upper end is connected with the tower cylinder by flange.The diameter of skirt piles 1 is 1.5 meters, its upper end and grouting sleeve 2 concrete mutuallies, and the lower end is fixed in the bearing stratum of seabed.
The jacket support of this example and skirt piles 1 difference be processing factory's processing and fabricating by land, and jacket supports and is connected and fixed in aggregates with grouting sleeve 2 usefulness steel plates 4.Transport to on-the-spot marine site with boats and ships, placing first jacket supports, leveling is complete, with pile driving barge skirt piles 1 are squeezed into ocean bottom soil along the center of grouting sleeve 2, then at the gap perfusion grouting agent of skirt piles 1 with grouting sleeve 2, after grouting agent solidified, braced structures and skirt piles 1 just were bonded together securely.
The degree of depth that skirt piles 1 are squeezed into ocean bottom soil is definite with the factors such as size of hydrologic condition, wind-powered electricity generation unit according to the geology in concrete marine site.
Linkage section steel cylinder 9 is the major diameter steel cylinder, can according to waiting caliber design, also can design according to the change caliber.
According to the practical operation needs at scene, stay pipe can only be the horizontal stay tube of one deck at least, also can comprise the multilayer down tube.Horizontal stay tube and down tube are the rounded body of cutting plane.Its diameter is 300-1500mm.Leg pipe diameter is 1200-2500mm, and the skirt piles diameter is 1000-2000mm.The linkage section steel cylinder be the equal diameter cylindrical shell or straighten the footpath cylindrical shell, the cylindrical shell end face be higher than highest water level add wave height 1/2 the height.
The above is preferred embodiment of the present utility model only, is not that the utility model is done any pro forma restriction.Any change that is equal to, modification or differentiation etc. that all those skilled in the art utilize the technical solution of the utility model that above-described embodiment is made all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. offshore wind turbine skirt piles are basic, it is characterized in that:
Comprise that linkage section steel cylinder, jacket support and skirt piles, the lower end of linkage section steel cylinder is fixedly connected on jacket and supports, upper end and blower fan tower barrel Joint; Jacket supports the support body that is comprised of the leg pipe more than 3 and stay pipe that the leg pipe is laterally connected in twos, and the lower end of every leg pipe all is connected with the grouting sleeve of 1-4 root hollow; Skirt piles are set in the grouting sleeve, its upper end and grouting sleeve concrete mutually, and the lower end is fixed in the bearing stratum of seabed.
2. offshore wind turbine skirt piles according to claim 1 are basic, it is characterized in that:
The leg pipe that described grouting sleeve and jacket support is fixed together by junction plate, equidistantly distributes along leg pipe outside semi-circumference equal angles, and distance is three times of leg pipe diameter between leg pipe and grouting sleeve.
3. offshore wind turbine skirt piles according to claim 2 are basic, it is characterized in that:
Described grouting sleeve and skirt piles adopt grouting agent to fill and are consolidated.
4. offshore wind turbine skirt piles according to claim 1 are basic, it is characterized in that:
Described stay pipe comprises at least horizontal stay tube of one deck.
5. offshore wind turbine skirt piles according to claim 4 are basic, it is characterized in that:
Described stay pipe also comprises at least down tube of one deck.
6. offshore wind turbine skirt piles according to claim 5 are basic, it is characterized in that:
Described horizontal stay tube and/or inclination stay tube are the rounded equal diameter of cutting plane or the body that straightens the footpath.
7. offshore wind turbine skirt piles according to claim 1 are basic, it is characterized in that:
Described connection steel cylinder upper end is fixedly connected with the tower cylinder by flange, connects steel cylinder top and is provided with inspection platform.
8. offshore wind turbine skirt piles according to claim 1 are basic, it is characterized in that:
Described leg pipe is the 3-6 root, and vertically setting or bottom tilt slightly laterally.
9. offshore wind turbine skirt piles according to claim 1 are basic, it is characterized in that:
Described linkage section steel cylinder is the equal diameter circular cylinder body or straightens the footpath circular cylinder body, is fixedly mounted on the stay pipe of jacket support, and the cylindrical shell end face is higher than 1/2 height that highest water level adds wave height.
10. arbitrary described offshore wind turbine skirt piles basis according to claim 1-9 is characterized in that:
The diameter of described skirt piles is Φ 1000-Φ 2000mm, and described leg pipe diameter is Φ 1200-Φ 2500mm, and described stay pipe diameter is Φ 300-Φ 1500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515204 CN202767094U (en) | 2012-10-09 | 2012-10-09 | Skirt pile foundation for offshore wind turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515204 CN202767094U (en) | 2012-10-09 | 2012-10-09 | Skirt pile foundation for offshore wind turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202767094U true CN202767094U (en) | 2013-03-06 |
Family
ID=47773677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220515204 Expired - Lifetime CN202767094U (en) | 2012-10-09 | 2012-10-09 | Skirt pile foundation for offshore wind turbines |
Country Status (1)
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| CN (1) | CN202767094U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758146A (en) * | 2014-02-13 | 2014-04-30 | 天津大学前沿技术研究院有限公司 | Guide pipe frame-cylindrical structure combined offshore wind turbine foundation |
| CN104099917A (en) * | 2014-08-07 | 2014-10-15 | 熊翱 | Multilayer multi-foot frame structure and construction method thereof |
| CN105019419A (en) * | 2015-06-29 | 2015-11-04 | 中国能源建设集团广东省电力设计研究院有限公司 | Guide pipe frame, guide pipe frame foundation platform and guide pipe frame construction method |
| CN105155569A (en) * | 2015-08-03 | 2015-12-16 | 浙江华蕴海洋工程技术服务有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| CN108361156A (en) * | 2018-03-26 | 2018-08-03 | 北京金风科创风电设备有限公司 | Tower and wind driven generator assembly |
| CN111218923A (en) * | 2020-02-18 | 2020-06-02 | 中国建筑第六工程局有限公司 | Height-adjustable assembly type offshore measuring platform and installation method thereof |
| CN113638441A (en) * | 2020-04-27 | 2021-11-12 | 中国电建集团华东勘测设计研究院有限公司 | Pile-barrel combined jacket supporting structure and construction method thereof |
| CN114457773A (en) * | 2022-01-21 | 2022-05-10 | 西南石油大学 | Novel jacket platform suitable for offshore oil and gas exploitation |
| CN116480531A (en) * | 2022-01-21 | 2023-07-25 | 日铁工程技术株式会社 | Sleeve structure, offshore wind turbine, sleeve structure system, and offshore wind turbine system |
-
2012
- 2012-10-09 CN CN 201220515204 patent/CN202767094U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758146A (en) * | 2014-02-13 | 2014-04-30 | 天津大学前沿技术研究院有限公司 | Guide pipe frame-cylindrical structure combined offshore wind turbine foundation |
| CN103758146B (en) * | 2014-02-13 | 2015-09-30 | 天津大学前沿技术研究院有限公司 | A kind of jacket-tubular construction combined type offshore wind turbine foundation |
| CN104099917A (en) * | 2014-08-07 | 2014-10-15 | 熊翱 | Multilayer multi-foot frame structure and construction method thereof |
| CN105019419A (en) * | 2015-06-29 | 2015-11-04 | 中国能源建设集团广东省电力设计研究院有限公司 | Guide pipe frame, guide pipe frame foundation platform and guide pipe frame construction method |
| CN105155569B (en) * | 2015-08-03 | 2017-05-31 | 浙江华蕴海洋工程技术服务有限公司 | The constructing device and construction method of piling offshore wind turbine foundation after a kind of |
| WO2017020697A1 (en) * | 2015-08-03 | 2017-02-09 | 广东明阳风电产业集团有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| CN105155569A (en) * | 2015-08-03 | 2015-12-16 | 浙江华蕴海洋工程技术服务有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| US10253475B2 (en) | 2015-08-03 | 2019-04-09 | Ming Yang Smart Energy Group., Ltd. | Construction device and method for offshore wind turbine foundation with piling performed later |
| CN108361156A (en) * | 2018-03-26 | 2018-08-03 | 北京金风科创风电设备有限公司 | Tower and wind driven generator assembly |
| CN111218923A (en) * | 2020-02-18 | 2020-06-02 | 中国建筑第六工程局有限公司 | Height-adjustable assembly type offshore measuring platform and installation method thereof |
| CN113638441A (en) * | 2020-04-27 | 2021-11-12 | 中国电建集团华东勘测设计研究院有限公司 | Pile-barrel combined jacket supporting structure and construction method thereof |
| CN114457773A (en) * | 2022-01-21 | 2022-05-10 | 西南石油大学 | Novel jacket platform suitable for offshore oil and gas exploitation |
| CN116480531A (en) * | 2022-01-21 | 2023-07-25 | 日铁工程技术株式会社 | Sleeve structure, offshore wind turbine, sleeve structure system, and offshore wind turbine system |
| CN114457773B (en) * | 2022-01-21 | 2023-11-14 | 西南石油大学 | Novel jacket platform suitable for offshore oil and gas exploitation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |
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| CX01 | Expiry of patent term |