CN112252354A - Offshore wind power pile shoe expands large-scale jacket basis - Google Patents
Offshore wind power pile shoe expands large-scale jacket basis Download PDFInfo
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- CN112252354A CN112252354A CN202011132495.5A CN202011132495A CN112252354A CN 112252354 A CN112252354 A CN 112252354A CN 202011132495 A CN202011132495 A CN 202011132495A CN 112252354 A CN112252354 A CN 112252354A
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- pile shoe
- jacket
- pile
- offshore wind
- wind power
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/223—Details of top sections of foundation piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Foundations (AREA)
- Wind Motors (AREA)
Abstract
The invention belongs to the field of offshore wind power engineering, and particularly relates to an offshore wind power pile shoe enlarged jacket foundation which comprises a jacket and a plurality of pile shoes installed at the lower end of the jacket in a matched mode. Compared with the prior art, the invention has the beneficial effects that: by enlarging the diameter of the bottom of the pile shoe, the side frictional resistance between the pile shoe and the seabed soil body can be increased, so that the stability of the jacket foundation in the installation process is ensured, and the uneven settlement and excessive settlement of the jacket foundation are prevented.
Description
Technical Field
The invention belongs to the field of offshore wind power engineering, and particularly relates to an offshore wind power pile shoe enlarged jacket foundation.
Background
The offshore wind turbine and the booster station are located in a severe marine environment, and the foundation of the offshore wind turbine and the booster station is required to bear the load from the upper part of the bearing platform and resist huge environmental load, so that the structural requirement and the construction process requirement of the offshore wind turbine and the booster station are very strict, and the stability and the safety of an offshore platform are ensured.
The offshore wind turbine foundation has many different structural forms, including gravity type, single pile type, suction type, three-pile (multi-pile) jacket type, floating type and other forms, wherein the jacket foundation is widely applied, and the jacket foundation is widely applied next to the application of single pile, and the foundation form of the offshore booster station is also widely applied by using a jacket. The jacket foundation is a space frame type structure, and has the advantages of small rod diameter, high strength, light weight, small wave flow effect and suitability for deeper sea areas. The jacket foundation can be divided into two structural forms according to the construction sequence: pile driving jacket and pile driving jacket after. The main structures of the two jacket forms are the same, the pile shoe is not needed to be arranged at the tail end of the supporting leg of the jacket by piling first, and the pile shoe is arranged at the tail end of the basic supporting leg of the jacket by piling later.
The rear pile method construction adopts that a rear pile driving jacket is adopted, a jacket foundation is required to be placed on a sea bed surface firstly in the construction process, the bottom of a pile shoe is in contact with a mud surface, then a steel pipe pile penetrates through the pile shoe and is driven into the sea bed, the pile shoe and the steel pipe pile are both of annular columnar structures, the inner diameter of the pile shoe is larger than the outer diameter of the steel pipe pile, the pile shoe and the steel pipe pile are connected through grouting materials such as concrete, and therefore, loads such as the upper part of a jacket bearing platform, waves, ocean currents and the like can be transmitted to the steel pipe pile through the pile shoe through the grouting materials, and the steel pipe pile transmits the loads to the sea bed, so that the structural strength and the stability of the offshore wind power structure.
Its boots of present jacket basis are mostly the only pipe structure of diameter, and in-process of subsiding is being placed the jacket on the sea bed surface, because the improper operation of sea bed surface unevenness and work progress, arouse the inhomogeneous settlement of jacket easily, excessive settlement, can lead to the jacket to topple when serious.
In practical engineering, anti-sinking plates are usually arranged at four corners or the periphery of a horizontal layer at the bottom of a jacket to increase the contact area of the jacket and a seabed, so that the stability of the jacket in the marine installation process is ensured.
However, the anti-sinking plate is too large and too heavy, so that the anti-sinking plate is inconvenient to transport and increases the early development cost of offshore wind power.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a technical scheme for enlarging a jacket foundation of an offshore wind power pile shoe.
The offshore wind power pile shoe enlarged jacket foundation comprises a jacket and a plurality of pile shoes which are installed at the lower end of the jacket in a matched mode, and is characterized in that a pile shoe enlarged section is arranged at the lower end of each pile shoe, and the outer diameter of the pile shoe enlarged section is larger than that of a pile shoe main body.
The offshore wind power pile shoe enlarged jacket foundation is characterized in that the outer diameter of the pile shoe enlarged section is 2-4 times of the outer diameter of the pile shoe main body.
The offshore wind power pile shoe enlarged jacket foundation is characterized in that the outer diameter of the pile shoe enlarged section is 3 times of the outer diameter of the pile shoe main body.
The offshore wind power pile shoe enlarged jacket foundation is characterized in that the pile shoe enlarged section is positioned at the bottom of the pile shoe.
The offshore wind power pile shoe enlarged jacket foundation is characterized in that the outer diameter of the pile shoe is 2.5-3.5 meters.
The offshore wind power pile shoe enlarged jacket foundation is characterized in that the outer diameter of the pile shoe is 3 meters.
The offshore wind power pile shoe enlarged jacket foundation is characterized in that a lifting lug is arranged at the upper end of the pile shoe.
Compared with the prior art, the invention has the beneficial effects that:
1) the side frictional resistance between the pile shoe and the seabed soil body can be increased by enlarging the diameter of the bottom of the pile shoe, so that the stability of the jacket foundation in the installation process is ensured, and the uneven settlement and excessive settlement of the jacket foundation are prevented;
2) the lifting lugs are arranged at the tops of the pile shoes, so that the jacket can be leveled in the installation process, and the structural stability of the jacket is guaranteed;
3) the application of the foundation structure can be used for installing the fire-fighting sinking plate, so that the early-stage cost of wind power development is reduced;
4) the application range is wider, and the jacket foundation can be applied to offshore wind turbine jacket foundations and booster station jacket foundations.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the present invention after completion of construction.
In the figure: the device comprises a jacket 1, a pile shoe 2, a pile shoe expanding section 3, a lifting lug 4, a steel pipe pile 5, a seabed soil body 6 and seawater 7.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in the figure, the offshore wind power pile shoe expansion type jacket foundation comprises a jacket 1 and a plurality of pile shoes 2 which are installed at the lower end of the jacket 1 in a matched mode, a pile shoe expansion section 3 is arranged at the lower end of each pile shoe 2, the outer diameter of each pile shoe expansion section 3 is larger than the outer diameter of a main body of each pile shoe 2, and the pile shoes 2 and the pile shoe expansion sections 3 are of an integrated structure.
As an optimization: the outer diameter of the pile shoe expanding section 3 is 2-4 times of the outer diameter of the main body of the pile shoe 2.
Further, the outer diameter of the pile shoe expanding section 3 is 3 times of the outer diameter of the main body of the pile shoe 2.
As an optimization: the shoe enlargement section 3 is located at the bottom of the shoe 2.
As an optimization: the outer diameter of the pile shoe 2 is 2.5-3.5 meters.
Further, the outer diameter of the pile shoe 2 is 3 meters, and the outer diameter of the pile shoe expanding section 3 is preferably 9 meters.
As an optimization: and a lifting lug 4 is arranged at the upper end of the pile shoe 2.
The invention provides an offshore wind power pile shoe enlarged jacket foundation, which aims at an offshore wind power fan or booster station jacket foundation. This form of infrastructure is described in detail below:
as shown in fig. 1, the jacket foundation is composed of a jacket 1 and a pile shoe 2, the bottom of the pile shoe 2 is provided with a pile shoe expansion section 3, the outer diameter of the pile shoe expansion section 3 is larger than the outer diameter of a main body of the pile shoe 2, the purpose of increasing the diameter of the bottom of the pile shoe 2 is to increase the contact area of the pile shoe 2 and a seabed soil body 6, so that the side friction resistance is improved, the jacket 1 is prevented from excessively sinking to ensure the stability of the jacket, a lifting lug 4 is arranged at the top of the pile shoe 2, and in the installation process of the jacket 1, if the jacket 1 sinks unevenly, a crane can be connected with the lifting lug 4 to lift or pull the jacket 1, so that the sinking depth of each pile leg 2 of the jacket 1 is uniform, and the jacket foundation is leveled.
As shown in fig. 2, after the jacket 1 is installed, the steel pipe pile 5 is driven into the pile shoe 2, grouting is performed between the pile shoe 2 and the steel pipe pile 5, after the grouting is finished, the installation process of the jacket foundation is completed completely, the whole process does not need to be provided with the anti-sinking plate, the stability of the jacket foundation is improved only by enlarging the diameter of the bottom of the pile shoe, and the early development cost of wind power can be greatly reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The offshore wind power pile shoe expansion type jacket foundation comprises a jacket (1) and a plurality of pile shoes (2) which are installed at the lower end of the jacket (1) in a matched mode, and is characterized in that pile shoe expansion sections (3) are arranged at the lower ends of the pile shoes (2), and the outer diameters of the pile shoe expansion sections (3) are larger than the outer diameter of a pile shoe (2) main body.
2. The offshore wind turbine pile shoe enlarged jacket foundation according to claim 1, wherein the outer diameter of the pile shoe enlarged section (3) is 2-4 times the outer diameter of the main body of the pile shoe (2).
3. The offshore wind turbine pile shoe enlarged jacket foundation according to claim 2, wherein the outer diameter of the pile shoe enlarged section (3) is 3 times the outer diameter of the main body of the pile shoe (2).
4. An offshore wind power pile shoe enlarged jacket foundation according to claim 1, characterised in that the pile shoe enlargement section (3) is located at the bottom of the pile shoe (2).
5. Offshore wind power pile shoe enlarged jacket foundation according to any of claims 1-4, characterised in that the pile shoe (2) has an outer diameter of 2.5-3.5 metres.
6. The offshore wind power pile shoe enlarged jacket foundation according to claim 5, characterized in that the pile shoe (2) has an outer diameter of 3 meters.
7. An offshore wind power pile shoe enlarged jacket foundation according to any one of claims 1-4, characterised in that the upper end of the pile shoe (2) is provided with lifting lugs (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011132495.5A CN112252354A (en) | 2020-10-21 | 2020-10-21 | Offshore wind power pile shoe expands large-scale jacket basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011132495.5A CN112252354A (en) | 2020-10-21 | 2020-10-21 | Offshore wind power pile shoe expands large-scale jacket basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112252354A true CN112252354A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011132495.5A Pending CN112252354A (en) | 2020-10-21 | 2020-10-21 | Offshore wind power pile shoe expands large-scale jacket basis |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030069955A (en) * | 2003-08-05 | 2003-08-27 | 이호경 | The shoe for an up-and-down hem reinforcement of a steel pipe pile |
| CN202247872U (en) * | 2011-09-28 | 2012-05-30 | 南通润邦海洋工程装备有限公司 | Pile shoe of wind power installation vessel |
| CN203113330U (en) * | 2013-03-01 | 2013-08-07 | 中国长江三峡集团公司 | Pile shoe of wind power installation vessel |
| CN206298888U (en) * | 2016-11-30 | 2017-07-04 | 中国电建集团华东勘测设计研究院有限公司 | For the pin shoe jacket structure of offshore boosting station |
| CN108149659A (en) * | 2017-11-14 | 2018-06-12 | 武汉船用机械有限责任公司 | A kind of walking ocean platform certainly |
-
2020
- 2020-10-21 CN CN202011132495.5A patent/CN112252354A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030069955A (en) * | 2003-08-05 | 2003-08-27 | 이호경 | The shoe for an up-and-down hem reinforcement of a steel pipe pile |
| CN202247872U (en) * | 2011-09-28 | 2012-05-30 | 南通润邦海洋工程装备有限公司 | Pile shoe of wind power installation vessel |
| CN203113330U (en) * | 2013-03-01 | 2013-08-07 | 中国长江三峡集团公司 | Pile shoe of wind power installation vessel |
| CN206298888U (en) * | 2016-11-30 | 2017-07-04 | 中国电建集团华东勘测设计研究院有限公司 | For the pin shoe jacket structure of offshore boosting station |
| CN108149659A (en) * | 2017-11-14 | 2018-06-12 | 武汉船用机械有限责任公司 | A kind of walking ocean platform certainly |
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