CN103225315A - Offshore wind power foundation consisting of single pile, cylindrical foundations and anchor cable - Google Patents
Offshore wind power foundation consisting of single pile, cylindrical foundations and anchor cable Download PDFInfo
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- CN103225315A CN103225315A CN2013101740297A CN201310174029A CN103225315A CN 103225315 A CN103225315 A CN 103225315A CN 2013101740297 A CN2013101740297 A CN 2013101740297A CN 201310174029 A CN201310174029 A CN 201310174029A CN 103225315 A CN103225315 A CN 103225315A
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Abstract
The invention discloses an offshore wind power foundation structure consisting of a single pile, cylindrical foundations and an anchor cable. The offshore wind power foundation structure consists of a single pile, multiple cylindrical foundations and an anchor cable, wherein the cylindrical foundations are uniformly distributed on the circumference which takes the single pile as the center of a circle; the anchor cable is obliquely tensioned and is connected with the cylindrical foundations and the single pile; the anchor cable, the cylindrical foundations and the single pile are connected through welding; the included angle between the anchor cable and the single pile is between 30 and 60 degrees; and the top of the single pile is connected with a wind turbine tower through a flange plate. According to the technical scheme, a novel foundation type consisting of the single pile, the cylindrical foundations and the anchor cable is given, the anchor cable is connected with the cylindrical foundations and the single pile and is obliquely tensioned, the resistance of shallow soil on the earth surface is fully exerted, the bending moment resistance of the structure is enhanced, and the displacement of the pile body is reduced, so that the aim of reducing the diameter and thickness of the single pile is fulfilled.
Description
Technical field
The invention belongs to offshore wind farm basic technology field, more particularly, relate to a kind of novel offshore wind farm unit basis pattern that a plurality of tubulars basis and single pile are combined by anchor cable.
Background technology
Wind energy has been subjected to various countries energy development person's favor as green clean reproducible energy, and at sea in the construction of wind energy turbine set, foundation structure is the most important thing.Maritime environment is complicated and changeable, and the safety of foundation structure, economy and compliance are the key factors of restriction offshore wind farm exploitation.
Offshore wind farm foundation structure pattern is varied, comprises many pile leaders frame, single pile, tripod basis, gravity type foundation, tubular basis and floatation type basis etc.Adopting the most basic pattern at present is the single pile basis.The single pile basis is made of single large diameter steel pipe usually, and the bottom is goed deep into providing bearing capacity in the soil; The middle part is dipped in long-term ringings such as bearing wave ocean current morning and evening tides in the water; Top links to each other with blower fan tower barrel by linkage section.Horizontal loads such as stormy waves stream are mainly born on the single pile basis, need emphasis to consider its horizontal bearing performance in design.Because its integral rigidity less relatively (gentleer), the pile body displacement is often bigger, and the structural dynamic response under wave, wind action is bigger, is easy to generate fatigue damage even inefficacy.Along with the exploitation of offshore wind farm scale, wind-force unit single-machine capacity is increasing, and 5MW even bigger unit been have all have been researched and developed success, and as adopting the single pile pattern, the diameter and the wall thickness of stake will significantly increase, and have both increased cost, have also increased difficulty of construction.
Summary of the invention
The object of the invention is intended to overcome the problems referred to above, proposes a kind of offshore wind farm basis pattern of being made up of single pile, tubular basis and anchor cable, and this foundation structure can effectively address the above problem, and difficulty of construction is low simultaneously, the cycle short, and is good in economic efficiency.
Technical purpose of the present invention is achieved by following technical proposals:
A kind of offshore wind farm foundation structure of forming by single pile, tubular basis and anchor cable, form by single pile, tubular basis and anchor cable, it is on the circumference in the center of circle that wherein said tubular basis is evenly distributed on the single pile, the oblique tension of described anchor cable connects tubular basis and single pile, angle between described anchor cable and the single pile is at 30～60 °, and described single pile top is connected with wind energy conversion system tower tube by flange.
Between described anchor cable and tubular basis, the single pile is to be connected by welding.
Described single pile is a steel pipe pile, diameter 2-10m, long 40-80m.
Described anchor cable is a cable.
Described tubular is basic for to be provided with the steel tube of top pressure closure, and is arranged among the sea bed, and its quantity can select to be provided with 3～12, and preferred 6～10, tubular basis diameter 1.5-8m.
Preferred 40～50 ° of angle between described anchor cable and the single pile.
Technical solution of the present invention has provided the novel basic pattern of being made up of single pile, tubular basis and anchor cable, anchor cable connects tubular basis and single pile, oblique tension, give full play to the drag of shallow surface soil, strengthen the ability of structure opposing moment of flexure, reduce the pile body displacement, thereby arrive the purpose that reduces single pile diameter and thickness.The axial load of foundation structure is born by single pile; The horizontal loading that environmental loads such as wind, current, ripple produce is connected by anchor cable by single pile and a plurality of tubulars basis with moment of flexure to be born jointly, because the tubular basis is distributed on the ground radially, bigger with the contact range of ground, can give full play to the horizontal drag of ground surface soil, improve the horizontal bearing performance of foundation pile, improve basic resistance to capsizing, reduce the dynamic response of foundation pile under the dynamic load effect.And the tubular basis can adopt negative pressure to sink, and difficulty of construction is little.
Description of drawings
Fig. 1 is the offshore wind farm foundation structure drawing in side sectional elevation of being made up of single pile, tubular basis and anchor cable of the present invention.
Fig. 2 is the offshore wind farm foundation structure vertical view of being made up of single pile, tubular basis and anchor cable of the present invention.
Wherein 1 is single pile; 2 is the tubular basis; 3 is cable; 4 is flange; 5 is wind energy conversion system tower tube.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with specific embodiment.
Shown in attached Fig. 1 and 2, a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable comprises single steel pipe pile, connects anchor cable, tubular basis, flange and wind energy conversion system tower tube.
The connection anchor cable is a cable, and the tubular basis is the steel tube that is provided with top pressure closure of steel, establishes 8 altogether, and radial being uniformly distributed in the single pile is on the circumference in the center of circle, and single pile top is connected by flange with blower fan structure.Single pile diameter 4.5m, long 80m; Tubular basis diameter 2m.Be connected with single pile and the tubular basis is welded to connect by cable, the basic number of cable and tubular is identical, and the angle between anchor cable and the single pile is between 30～60 °.
Described tubular basis instrument is among sea bed, and its quantity also can select to be provided with 3～12 except that 8, and preferred 6～10, being uniformly distributed in the single pile is on the circumference in the center of circle, and tubular basis diameter is selected 1.5-8m.Described single pile is a steel pipe pile, and diameter is selected 2-10m, and length is selected 40-80m.Preferred 40～50 ° of angle between described anchor cable and the single pile.
In the concrete work progress: at first prefabricated single pile and tubular basis; Then prefabricated single pile is sunk earlier and pass through to certain depth; Again with tubular basis transportation by driving to assigned address, cable is installed; Then with tubular foundation negative pressure sinking, tensioned cables; Blower fan tower barrel is installed at last.
More than the present invention has been done exemplary description; should be noted that; under the situation that does not break away from core of the present invention, the replacement that is equal to that any simple distortion, modification or other those skilled in the art can not spend creative work all falls into protection scope of the present invention.
Claims (9)
1. offshore wind farm foundation structure of forming by single pile, tubular basis and anchor cable, it is characterized in that, form by single pile, tubular basis and anchor cable, it is on the circumference in the center of circle that wherein said tubular basis is evenly distributed on the single pile, the oblique tension of described anchor cable connects tubular basis and single pile, angle between described anchor cable and the single pile is at 30～60 °, and described single pile top is connected with wind energy conversion system tower tube by flange.
2. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 1 is characterized in that, is to be connected by welding between described anchor cable and tubular basis, the single pile.
3. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 1 is characterized in that, preferred 40～50 ° of the angle between described anchor cable and the single pile.
4. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 1 is characterized in that described single pile is diameter 2-10m, the steel pipe pile of long 40-80m.
5. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 4 is characterized in that described anchor cable is a cable.
6. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 1 is characterized in that, described tubular is basic for to be provided with the steel tube of top pressure closure, and is arranged among the sea bed.
7. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 1 is characterized in that, described tubular basis diameter 1.5-8m, and quantity is selected to be provided with 3～12.
8. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 1 is characterized in that, described tubular basis quantity is selected to be provided with 6～10, tubular basis diameter 2m.
9. a kind of offshore wind farm foundation structure of being made up of single pile, tubular basis and anchor cable according to claim 1 is characterized in that described single pile is diameter 4.5m, the steel pipe pile of long 80m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174029.7A CN103225315B (en) | 2013-05-11 | 2013-05-11 | Offshore wind power foundation consisting of single pile, cylindrical foundations and anchor cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174029.7A CN103225315B (en) | 2013-05-11 | 2013-05-11 | Offshore wind power foundation consisting of single pile, cylindrical foundations and anchor cable |
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| CN103225315A true CN103225315A (en) | 2013-07-31 |
| CN103225315B CN103225315B (en) | 2015-04-08 |
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| CN201310174029.7A Active CN103225315B (en) | 2013-05-11 | 2013-05-11 | Offshore wind power foundation consisting of single pile, cylindrical foundations and anchor cable |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938647A (en) * | 2014-05-14 | 2014-07-23 | 闵怡红 | Wind power generation tower prestress anchor bolt cage |
| CN103953059A (en) * | 2014-05-04 | 2014-07-30 | 云南省电力设计院 | Guy anchoring type offshore wind turbine foundation |
| CN104060625A (en) * | 2014-06-11 | 2014-09-24 | 河海大学 | Offshore wind power foundation adopting steel rods for connecting vertical pile and inclined piles |
| CN107794957A (en) * | 2017-11-24 | 2018-03-13 | 中交上海港湾工程设计研究院有限公司 | The horizontal static load device of super-large diameter single-pile foundation and test method |
| CN108677991A (en) * | 2018-07-26 | 2018-10-19 | 山东大学 | A kind of suction type combination foundation structure and construction method being suitable for easily liquefaction stratum |
| CN108677994A (en) * | 2018-07-20 | 2018-10-19 | 上海交通大学 | A kind of offshore wind turbine single-pile foundation with tension type mooring system |
| CN109853609A (en) * | 2018-12-25 | 2019-06-07 | 长江勘测规划设计研究有限责任公司 | A kind of offshore wind farm combination foundation |
| CN110023570A (en) * | 2017-12-01 | 2019-07-16 | 徐少钢 | A kind of portable mechanism spud pile device upper in combination |
| CN112075370A (en) * | 2020-09-10 | 2020-12-15 | 上海交通大学 | Integrated development device of single-pile offshore wind turbine and circumferentially displaceable aquaculture net cage |
| CN112982468A (en) * | 2019-12-18 | 2021-06-18 | 烟台三维岩土工程技术有限公司 | Anchoring technology and construction method for marine large-diameter tubular pile foundation |
| CN112982472A (en) * | 2021-02-26 | 2021-06-18 | 中国能源建设集团江苏省电力设计院有限公司 | Power transmission tower foundation structure suitable for regions without bedrock and construction method |
| CN114182751A (en) * | 2021-12-09 | 2022-03-15 | 天津大学 | Offshore wind power deepwater pile-anchor flexible composite foundation |
| CN114197512A (en) * | 2021-12-01 | 2022-03-18 | 中国长江三峡集团有限公司 | Offshore wind power composite double-pile foundation suitable for shallow covering soil layer and construction method thereof |
| CN114525820A (en) * | 2022-03-10 | 2022-05-24 | 中国长江三峡集团有限公司 | Offshore single-pile prestress adjusting device and control method thereof |
| CN114606969A (en) * | 2022-03-30 | 2022-06-10 | 中国华能集团清洁能源技术研究院有限公司 | Basic component |
| CN114763698A (en) * | 2021-01-15 | 2022-07-19 | 中国电建集团华东勘测设计研究院有限公司 | Pre-tensioned pile anchor combined foundation for shallow covering layer seabed and construction method thereof |
| CN115110591A (en) * | 2022-07-04 | 2022-09-27 | 江苏科技大学 | Device and method for reinforcing and rectifying marine wind power single-pile foundation |
| CN115217144A (en) * | 2022-07-06 | 2022-10-21 | 江苏天能海洋重工有限公司 | Multifunctional stable offshore wind power generation foundation pile |
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| CN101768978A (en) * | 2010-01-29 | 2010-07-07 | 天津大学 | At-sea wind generation unit foundation formed by barrel type foundation and mooring rope anchor |
| JP2011184870A (en) * | 2010-03-05 | 2011-09-22 | Mikio Umeoka | Anchor pile for coupling sign and the like |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953059A (en) * | 2014-05-04 | 2014-07-30 | 云南省电力设计院 | Guy anchoring type offshore wind turbine foundation |
| CN103953059B (en) * | 2014-05-04 | 2016-04-27 | 中国能源建设集团云南省电力设计院有限公司 | Guy rope anchoring type offshore wind turbine foundation |
| CN103938647A (en) * | 2014-05-14 | 2014-07-23 | 闵怡红 | Wind power generation tower prestress anchor bolt cage |
| CN104060625A (en) * | 2014-06-11 | 2014-09-24 | 河海大学 | Offshore wind power foundation adopting steel rods for connecting vertical pile and inclined piles |
| CN104060625B (en) * | 2014-06-11 | 2016-02-10 | 河海大学 | The offshore wind power foundation of the stake of a kind of steel pole vertical connecting and taper pile |
| CN107794957A (en) * | 2017-11-24 | 2018-03-13 | 中交上海港湾工程设计研究院有限公司 | The horizontal static load device of super-large diameter single-pile foundation and test method |
| CN110023570A (en) * | 2017-12-01 | 2019-07-16 | 徐少钢 | A kind of portable mechanism spud pile device upper in combination |
| CN108677994A (en) * | 2018-07-20 | 2018-10-19 | 上海交通大学 | A kind of offshore wind turbine single-pile foundation with tension type mooring system |
| CN108677991A (en) * | 2018-07-26 | 2018-10-19 | 山东大学 | A kind of suction type combination foundation structure and construction method being suitable for easily liquefaction stratum |
| CN108677991B (en) * | 2018-07-26 | 2023-09-26 | 山东大学 | Suction type combined foundation structure suitable for stratum easy to liquefy and construction method |
| CN109853609A (en) * | 2018-12-25 | 2019-06-07 | 长江勘测规划设计研究有限责任公司 | A kind of offshore wind farm combination foundation |
| CN112982468A (en) * | 2019-12-18 | 2021-06-18 | 烟台三维岩土工程技术有限公司 | Anchoring technology and construction method for marine large-diameter tubular pile foundation |
| CN112075370A (en) * | 2020-09-10 | 2020-12-15 | 上海交通大学 | Integrated development device of single-pile offshore wind turbine and circumferentially displaceable aquaculture net cage |
| CN114763698A (en) * | 2021-01-15 | 2022-07-19 | 中国电建集团华东勘测设计研究院有限公司 | Pre-tensioned pile anchor combined foundation for shallow covering layer seabed and construction method thereof |
| CN112982472A (en) * | 2021-02-26 | 2021-06-18 | 中国能源建设集团江苏省电力设计院有限公司 | Power transmission tower foundation structure suitable for regions without bedrock and construction method |
| CN112982472B (en) * | 2021-02-26 | 2022-09-27 | 中国能源建设集团江苏省电力设计院有限公司 | Power transmission tower foundation structure suitable for regions without bedrock and construction method |
| CN114197512A (en) * | 2021-12-01 | 2022-03-18 | 中国长江三峡集团有限公司 | Offshore wind power composite double-pile foundation suitable for shallow covering soil layer and construction method thereof |
| CN114182751A (en) * | 2021-12-09 | 2022-03-15 | 天津大学 | Offshore wind power deepwater pile-anchor flexible composite foundation |
| CN114525820A (en) * | 2022-03-10 | 2022-05-24 | 中国长江三峡集团有限公司 | Offshore single-pile prestress adjusting device and control method thereof |
| CN114606969A (en) * | 2022-03-30 | 2022-06-10 | 中国华能集团清洁能源技术研究院有限公司 | Basic component |
| CN115110591A (en) * | 2022-07-04 | 2022-09-27 | 江苏科技大学 | Device and method for reinforcing and rectifying marine wind power single-pile foundation |
| WO2024007618A1 (en) * | 2022-07-04 | 2024-01-11 | 江苏科技大学 | Apparatus and method for reinforcing and rectifying offshore wind turbine monopile foundation |
| CN115217144A (en) * | 2022-07-06 | 2022-10-21 | 江苏天能海洋重工有限公司 | Multifunctional stable offshore wind power generation foundation pile |
| CN115217144B (en) * | 2022-07-06 | 2023-12-26 | 江苏天能海洋重工有限公司 | Multi-functional stable offshore wind power generation foundation pile |
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| CN103225315B (en) | 2015-04-08 |
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