CN111074927A - Single-pile foundation integrated auxiliary structure for integral installation of offshore wind turbine and construction method thereof - Google Patents
Single-pile foundation integrated auxiliary structure for integral installation of offshore wind turbine and construction method thereof Download PDFInfo
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- CN111074927A CN111074927A CN201911424225.9A CN201911424225A CN111074927A CN 111074927 A CN111074927 A CN 111074927A CN 201911424225 A CN201911424225 A CN 201911424225A CN 111074927 A CN111074927 A CN 111074927A
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 title claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
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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
- E02D27/32—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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Abstract
The invention relates to a single-pile foundation integrated auxiliary structure for integral installation of an offshore wind turbine and a construction method thereof. The invention aims to provide the integrated auxiliary structure of the single-pile foundation of the offshore wind turbine, which can realize the integral installation of the integrated auxiliary structure of the single-pile foundation of the offshore wind turbine and does not influence the integral hoisting of the upper wind turbine. The technical scheme of the invention is as follows: the utility model provides a single pile basis integrated form auxiliary structure for marine fan unit integrated into one piece, its characterized in that: the device is provided with an upper section attachment mechanism and a lower section attachment mechanism which are arranged up and down; the lower-section auxiliary mechanism is provided with a plurality of ring beams coaxially sleeved on the single-pile foundation, the ring beams are connected through a plurality of lower-section vertical parts, and the upper ends of the lower-section vertical parts are provided with lower connectors; and the lower section attachment mechanism is supported on a support bracket on the side wall of the single-pile foundation through a ring beam on the lower section attachment mechanism. The invention is suitable for the offshore wind power generation industry.
Description
Technical Field
The invention relates to a single-pile foundation integrated auxiliary structure for integrally installing an offshore wind turbine and a construction method thereof, which are suitable for the offshore wind power generation industry.
Background
The single-pile foundation is used as a foundation type which is most widely adopted in offshore wind power engineering, and has the advantages of simple structure, quick construction and high cost performance. The auxiliary components matched with the single-pile foundation comprise an outer platform, a berthing system, a cable protection pipe, a sacrificial anode, a ladder stand, a railing and the like, and are influenced by the auxiliary components, the upper fan cannot be integrally hoisted, and only a split hoisting scheme can be adopted.
Compared with an integral hoisting scheme, the split hoisting offshore construction method has the advantages that the split hoisting offshore construction process is more, the operation time is longer, and therefore the construction risk is higher. Meanwhile, the self-elevating platform ship required by split hoisting has high requirements on geological conditions in a field area, pile legs are inserted into a seabed through accurate research and analysis, and the requirements on operation technology and operation experience of ship operators are high. After the self-elevating platform ship completes hoisting of all parts of the fan, the risks of difficult pile leg pulling-out, ship inclination and the like may exist, and the risks occur in the construction of domestic offshore wind farms.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems, the integrated auxiliary structure of the single pile foundation of the offshore wind turbine can realize the integral installation of the integrated auxiliary structure of the single pile foundation of the offshore wind turbine and does not influence the integral hoisting of the upper wind turbine.
The technical scheme adopted by the invention is as follows: the utility model provides a single pile basis integrated form auxiliary structure for marine fan unit integrated into one piece, its characterized in that: the device is provided with an upper section attachment mechanism and a lower section attachment mechanism which are arranged up and down;
the lower-section auxiliary mechanism is provided with a plurality of ring beams coaxially sleeved on the single-pile foundation, the ring beams are connected through a plurality of lower-section vertical parts, and the upper ends of the lower-section vertical parts are provided with lower connectors; the lower section attachment mechanism is supported on a support bracket on the side wall of the single-pile foundation through a ring beam on the lower section attachment mechanism;
the upper-section auxiliary mechanism is divided into an upper-section left auxiliary mechanism and an upper-section right auxiliary mechanism, wherein the upper-section left auxiliary mechanism is provided with a left platform, and the left platform is connected with a plurality of upper-section vertical pieces which are in one-to-one correspondence with lower-section vertical pieces below the left platform; the upper section right auxiliary mechanism is provided with a right platform which can be spliced with the left platform to form a fan outer platform, the right platform is connected with a plurality of upper section vertical pieces which correspond to lower section vertical pieces below the right platform one by one, and the lower ends of the upper section vertical pieces are provided with upper connectors;
the upper section attachment is supported on the lower section vertical part on the lower section attachment through the upper section vertical part on the upper section attachment, and the upper section vertical part is matched and connected with the lower connector at the upper end of the corresponding lower section vertical part through the upper connector at the lower end of the upper section vertical part to form the vertical attachment for connecting the ring beam and the outer platform of the fan into a whole.
The vertical accessories are ring beam supporting rods, crawling ladders and/or cable protection pipes.
The lower connector is a lower flange, the upper connector is an upper flange, and the lower flange is connected with the upper flange through bolts.
The lower-section attachment mechanism is provided with a sacrificial anode and a berthing system.
The construction method of the single-pile foundation integrated auxiliary structure for integral installation of the offshore wind turbine is characterized by comprising the following steps of:
hoisting a lower section attachment mechanism, wherein the lower section attachment mechanism is sleeved on the single-pile foundation through the ring beam and supported on a support bracket on the side wall of the single-pile foundation through the ring beam;
integrally hoisting the fan;
hoisting an upper left auxiliary mechanism, wherein the upper left auxiliary mechanism is connected with a corresponding lower vertical part on a lower auxiliary mechanism through an upper vertical part on the upper left auxiliary mechanism;
hoisting the upper right auxiliary mechanism, wherein the upper right auxiliary mechanism is connected with a corresponding lower vertical part on the lower auxiliary mechanism through an upper vertical part on the upper right auxiliary mechanism;
and splicing a left platform and a right platform in the upper section left attachment mechanism and the upper section right attachment mechanism to form an outer platform of the fan.
The invention has the beneficial effects that: the invention divides the auxiliary structure into a lower auxiliary mechanism, an upper left auxiliary mechanism and an upper right auxiliary mechanism for installation and butt joint construction, and effectively solves the problem of integral installation of the upper fan. The mooring system, the cable protection pipe, the sacrificial anode and other auxiliary components are integrated into a whole through the ring beam and the ring beam supporting rod, the mounting difficulty of the auxiliary components is reduced, the offshore construction operation time is reduced, the offshore hoisting cost is reduced, the economic benefit is obvious, and the mooring system is particularly suitable for single-pile foundations without transition sections.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a sectional view B-B of fig. 1.
Fig. 4 is detail C of fig. 1.
Fig. 5 is a detailed view of the connection of the upper and lower flanges.
Detailed Description
The embodiment is an integrated auxiliary structure of a single-pile foundation for integrally installing an offshore wind turbine, the auxiliary structure is provided with an outer platform 3 of the wind turbine and a plurality of ring beams 7 which are coaxially sleeved on the single-pile foundation 1 and positioned below the outer platform 3 of the wind turbine, and the ring beams 7 are connected with the outer platform 3 of the wind turbine through a plurality of vertically arranged vertical auxiliary pieces (a ring beam supporting rod 4, a ladder stand 9, a cable protection pipe 5 and the like).
Vertical accessory divides into two sections between 7 and the outer platform 3 of fan of circle in the top circle roof beam in this embodiment, divide into the upper segment vertical member that is located the top and the lower section vertical member that is located the below, and upper segment vertical member lower extreme system has the connector, and lower section vertical member upper end system has the lower connector that can realize being connected with the cooperation of last connector
In the embodiment, the ring beam 7 and the ring beam 7 are connected into a whole through the lower section vertical part to form a lower section auxiliary mechanism. The lower section attachment mechanism is supported on the supporting bracket 2 on the side wall of the single pile foundation 1 through the ring beam 7 on the lower section attachment mechanism.
The outer platform 3 of the wind turbine is connected with the upper section vertical part into a whole to form an upper section attachment mechanism. The upper-section auxiliary mechanism is divided into an upper-section left auxiliary mechanism and an upper-section right auxiliary mechanism, wherein the upper-section left auxiliary mechanism is provided with a semicircular arc-shaped left platform, and the left platform is connected with a plurality of upper-section vertical pieces which are in one-to-one correspondence with lower-section vertical pieces below the left platform; the upper section right attachment mechanism is provided with a right platform which can be spliced with the left platform to form a semicircular arc shape of the outer platform 3 of the fan, and the right platform is connected with a plurality of upper section vertical pieces which are in one-to-one correspondence with the lower section vertical pieces below the right platform.
In this example, the lower-section attachment is provided with a sacrificial anode 8 and a berthing system 6 (comprising a ladder stand 9), and the sacrificial anode 8 and the berthing system 6 (comprising the ladder stand 9) connect the ring beam 7 with the ring beam 7.
In this example, the lower connector is a lower flange 11, the upper connector is an upper flange 10, and the lower flange 11 is connected with the upper flange 10 through a bolt 12.
The specific construction method of the embodiment is as follows:
hoisting a lower section auxiliary mechanism, wherein the lower section auxiliary mechanism is sleeved on the single-pile foundation 1 through a ring beam 7 and supported on a support bracket 2 on the side wall of the single-pile foundation 1 through the ring beam 7;
integrally hoisting the fan;
after the fan is connected with the single pile foundation 1, hoisting an upper left auxiliary mechanism, and connecting the upper left auxiliary mechanism with a corresponding lower vertical part on a lower auxiliary mechanism through an upper vertical part on the upper left auxiliary mechanism;
hoisting the upper right auxiliary mechanism, wherein the upper right auxiliary mechanism is connected with a corresponding lower vertical part on the lower auxiliary mechanism through an upper vertical part on the upper right auxiliary mechanism;
and splicing a left platform and a right platform in the left attachment mechanism and the right attachment mechanism of the upper section to form an outer fan platform 3 which surrounds the single-pile foundation 1 by one circle.
The patent technology is effectively applied to offshore wind power engineering in Jiangsu, and the precedent of carrying out integral hoisting on a fan on the basis of a single pile by offshore wind power in the world is created.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a single pile basis integrated form auxiliary structure for marine fan unit integrated into one piece, its characterized in that: the device is provided with an upper section attachment mechanism and a lower section attachment mechanism which are arranged up and down;
the lower-section auxiliary mechanism is provided with a plurality of ring beams (7) coaxially sleeved on the single-pile foundation (1), the ring beams (7) are connected through a plurality of lower-section vertical parts, and the upper ends of the lower-section vertical parts are provided with lower connectors; the lower section attachment mechanism is supported on a support bracket (2) on the side wall of the single-pile foundation (1) through a ring beam (7) on the lower section attachment mechanism;
the upper-section auxiliary mechanism is divided into an upper-section left auxiliary mechanism and an upper-section right auxiliary mechanism, wherein the upper-section left auxiliary mechanism is provided with a left platform, and the left platform is connected with a plurality of upper-section vertical pieces which are in one-to-one correspondence with lower-section vertical pieces below the left platform; the upper section right auxiliary mechanism is provided with a right platform which can be spliced with the left platform to form a fan outer platform (3), the right platform is connected with a plurality of upper section vertical pieces which correspond to lower section vertical pieces below the right platform one by one, and the lower ends of the upper section vertical pieces are provided with upper connectors;
the upper section of the auxiliary mechanism is supported on the lower section of the vertical part on the lower section of the auxiliary mechanism through the upper section of the vertical part on the upper section of the auxiliary mechanism, and the upper section of the vertical part is matched and connected with the lower connector at the upper end of the corresponding lower section of the vertical part through the upper connector at the lower end of the upper section of the vertical part to form the vertical auxiliary part which integrates the ring beam (7) and the outer platform (3) of the fan.
2. The mono-pile foundation integrated attachment structure of claim 1, wherein: the vertical accessories are a ring beam supporting rod (4), a ladder stand (9) and/or a cable protection pipe (5).
3. The mono-pile foundation integrated attachment structure of claim 1, wherein: the lower connector is a lower flange (11), the upper connector is an upper flange (10), and the lower flange (11) is connected with the upper flange (10) through a bolt (12).
4. The mono-pile foundation integrated attachment structure of claim 1, wherein: the lower-section auxiliary mechanism is provided with a sacrificial anode (8) and a berthing system (6).
5. A construction method of the single pile foundation integrated auxiliary structure for integral installation of offshore wind turbines as claimed in any one of claims 1 to 4, characterized by comprising the following steps:
hoisting a lower section attachment mechanism, wherein the lower section attachment mechanism is sleeved on the single-pile foundation (1) through the ring beam (7) and supported on a support bracket (2) on the side wall of the single-pile foundation (1) through the ring beam (7);
integrally hoisting the fan;
hoisting an upper left auxiliary mechanism, wherein the upper left auxiliary mechanism is connected with a corresponding lower vertical part on a lower auxiliary mechanism through an upper vertical part on the upper left auxiliary mechanism;
hoisting the upper right auxiliary mechanism, wherein the upper right auxiliary mechanism is connected with a corresponding lower vertical part on the lower auxiliary mechanism through an upper vertical part on the upper right auxiliary mechanism;
and a left platform and a right platform in the upper section left attachment mechanism and the upper section right attachment mechanism are spliced to form an outer fan platform (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911424225.9A CN111074927B (en) | 2019-12-31 | 2019-12-31 | Construction method for integrally installing single pile foundation integrated auxiliary structure of offshore wind turbine |
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| CN201911424225.9A CN111074927B (en) | 2019-12-31 | 2019-12-31 | Construction method for integrally installing single pile foundation integrated auxiliary structure of offshore wind turbine |
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| CN111074927A true CN111074927A (en) | 2020-04-28 |
| CN111074927B CN111074927B (en) | 2024-10-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161953A (en) * | 2021-04-23 | 2021-07-23 | 中国电建集团中南勘测设计研究院有限公司 | Method for installing cable protection pipe at top section of offshore boosting transformer substation |
| CN113774945A (en) * | 2021-09-26 | 2021-12-10 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind power single-pile foundation double-casing auxiliary structure suitable for deepwater sea area and construction method thereof |
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| GB0915112D0 (en) * | 2009-08-29 | 2009-10-07 | Slp Engineering Ltd | Offshore installation |
| CN204610156U (en) * | 2015-01-28 | 2015-09-02 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine single-pile foundation integrated form accessory structure |
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| EP3260604A1 (en) * | 2016-06-22 | 2017-12-27 | GeoSea NV | Top part of a base construction |
| CN110130387A (en) * | 2019-04-29 | 2019-08-16 | 南通蓝岛海洋工程有限公司 | A kind of building technology of integrated form set cage |
| CN211735482U (en) * | 2019-12-31 | 2020-10-23 | 中国电建集团华东勘测设计研究院有限公司 | Single-pile foundation integrated auxiliary structure for integral installation of offshore wind turbine |
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2019
- 2019-12-31 CN CN201911424225.9A patent/CN111074927B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0915112D0 (en) * | 2009-08-29 | 2009-10-07 | Slp Engineering Ltd | Offshore installation |
| CN204610156U (en) * | 2015-01-28 | 2015-09-02 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine single-pile foundation integrated form accessory structure |
| CN105569929A (en) * | 2015-12-11 | 2016-05-11 | 江苏海力风电设备科技有限公司 | Novel wind generator set booster station foundation on sea and assembling method thereof |
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| EP3260604A1 (en) * | 2016-06-22 | 2017-12-27 | GeoSea NV | Top part of a base construction |
| CN106948369A (en) * | 2017-04-24 | 2017-07-14 | 华电重工股份有限公司 | A kind of attachment means and construction technology of offshore wind farm single-pile foundation and outer platform |
| CN110130387A (en) * | 2019-04-29 | 2019-08-16 | 南通蓝岛海洋工程有限公司 | A kind of building technology of integrated form set cage |
| CN211735482U (en) * | 2019-12-31 | 2020-10-23 | 中国电建集团华东勘测设计研究院有限公司 | Single-pile foundation integrated auxiliary structure for integral installation of offshore wind turbine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161953A (en) * | 2021-04-23 | 2021-07-23 | 中国电建集团中南勘测设计研究院有限公司 | Method for installing cable protection pipe at top section of offshore boosting transformer substation |
| CN113774945A (en) * | 2021-09-26 | 2021-12-10 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind power single-pile foundation double-casing auxiliary structure suitable for deepwater sea area and construction method thereof |
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| CN111074927B (en) | 2024-10-15 |
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