CN108571019B - Scour prevention device for offshore wind power pile - Google Patents
Scour prevention device for offshore wind power pile Download PDFInfo
- Publication number
- CN108571019B CN108571019B CN201711273219.9A CN201711273219A CN108571019B CN 108571019 B CN108571019 B CN 108571019B CN 201711273219 A CN201711273219 A CN 201711273219A CN 108571019 B CN108571019 B CN 108571019B
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- Prior art keywords
- cover plate
- pile
- pile foundation
- wind power
- water flow
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- 230000002265 prevention Effects 0.000 title claims description 12
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000009991 scouring Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000005192 partition Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000013049 sediment Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
- E02D2200/146—Springs
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Wind Motors (AREA)
- Foundations (AREA)
Abstract
The invention provides an anti-scouring device for a marine wind power pile, which comprises an anti-scouring enclosing cover for reducing the scouring of waves and tide to the pile foundation of the wind power pile and an elastic compression piece for preventing the surface of a seabed from collapsing, wherein the anti-scouring enclosing cover is sleeved at the pile foundation position and comprises a cover plate and an enclosing frame arranged below the cover plate, and the elastic compression piece is arranged between the cover plate and the seabed in a compressed mode. The invention has the advantages of ensuring the stability of pile foundation, along with wide adaptability, convenient operation and installation, etc.
Description
Technical Field
The invention relates to the field of offshore wind power piles, in particular to an anti-scouring device for offshore wind power piles.
Background
The offshore wind turbine is a clean and environment-friendly power generation mode, and the foundation of the offshore wind turbine pile foundation is a key place for supporting the whole offshore wind turbine. The existing offshore wind power pile foundation is unstable, and accidents of the offshore wind power generator are easy to occur. Specifically, sediment around the foundation can be flushed and form a flushing pit due to the action of waves and tide, and the flushing pit can affect the stability of the pile foundation; meanwhile, water flow mixed with sediment near the surface of the seabed can continuously wash the pile foundation, corrode and destroy the surface of the pile foundation, and collapse of the offshore wind turbine unit can be caused when the water flow is severe. In order to solve the problems, the existing method adopts a riprap protection method, but the riprap protection is greatly influenced by the terrain, the stability of the pile foundation cannot be ensured, and the maintenance cost and the workload are large.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the anti-scouring device for the wind power pile, which ensures the stability of the pile foundation, has wide adaptability and is convenient to operate and install.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides an anti-scour device for marine wind power stake, is including the scour protection that is used for reducing wave and trend to the pile foundation scour of wind power stake encloses the lid to and be used for preventing the elasticity that seabed surface collapses compresses tightly the piece, the scour protection encloses the lid cover to be located pile foundation position, the scour protection encloses the lid to include the apron and locates the enclosing frame of apron below, elasticity compresses tightly the piece and is compressed the form and locates between apron and the seabed.
As a further improvement of the above technical scheme:
along the water flow impact direction, enclose the place ahead of closing the frame and be connected with the bolster that is used for reducing the water flow to enclosing the direct impact of frame, the height of bolster increases gradually along the water flow impact direction.
The height of the enclosing frame is gradually increased along the impact direction of water flow.
The water flow impact direction is followed, the rear of enclosing the frame is connected with the reposition of redundant personnel subassembly that is used for carrying out reposition of redundant personnel with impacting the rivers, reposition of redundant personnel subassembly include with enclose the connecting plate that closes the frame and locate a plurality of reposition of redundant personnel passageway on the connecting plate, reposition of redundant personnel passageway is arranged along the rivers impact direction.
And a diversion partition plate is arranged between the adjacent diversion channels, and an arc-shaped transition section for slowly transiting water supply leveling is arranged on the diversion partition plate.
Along the water flow impact direction, the protection stake that is used for reducing rivers to pile foundation scour is located in the place ahead of pile foundation, the protection stake is located the apron is close to the position of pile foundation.
The protection pile is a triangular protection pile, and the triangular protection pile comprises two diversion sections arranged at an included angle and a matching section arranged between the two diversion sections, wherein the matching section is matched with the outer surface of the pile foundation.
The cover plate comprises a left cover plate and a right cover plate, and semicircular through holes matched with the outer surfaces of the pile foundations are formed in the left cover plate and the right cover plate.
The elastic pressing piece comprises a threaded connecting column, a pressing plate and a compression spring, wherein the threaded connecting column is in threaded connection with the bottom end of the cover plate, the pressing plate is pressed on the surface of a river bed, and the compression spring is arranged between the threaded connecting column and the pressing plate in a compressed mode.
The enclosing frame is formed by combining four groups Liang Tiwei, wherein one group of beam bodies comprises a movable beam for a pile foundation to enter the enclosing frame and two mounting beams which are in plug-in connection with the movable beam, and the movable beam is arranged between the two mounting beams.
Compared with the prior art, the invention has the advantages that:
the invention is provided with the anti-scour surrounding cover and the elastic pressing piece, the anti-scour surrounding cover is sleeved at the pile foundation position, and an anti-scour space is formed at the pile foundation position, so that scour damage of waves and tide to the pile foundation can be effectively reduced, the phenomenon that the stone throwing protection is greatly influenced by terrains is avoided, the invention can be applied to complex terrains, has wide adaptability, is convenient to install and operate, and has low maintenance cost; meanwhile, the elastic pressing piece is arranged between the anti-collision enclosing cover and the seabed in a compressed mode, can compact sediment on the surface of the seabed, and avoids the occurrence of scouring pits on the surface of the seabed, so that stability of pile foundations is guaranteed. The invention adopts a mode of combining the anti-collision enclosing cover and the elastic pressing piece, effectively ensures the stability of the wind power pile foundation, avoids wind driven generator accidents caused by unstable wind power pile foundation, and has simple structure and convenient maintenance.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a right side view of the present invention.
Fig. 4 is a top view of the present invention.
Fig. 5 is a bottom view of the present invention.
The reference numerals in the drawings denote:
1. pile foundation; 2. a protective cover; 21. a cover plate; 211. a left cover plate; 212. a right cover plate; 213. a semicircular through hole; 22. enclosing a frame; 221. a beam body; 222. a movable beam; 223. mounting a beam; 3. an elastic pressing member; 4. a buffer member; 5. a shunt assembly; 51. a connecting plate; 52. a shunt channel; 53. a split separator; 531. an arc-shaped transition section; 6. protecting piles; 61. a diversion section; 62. and a mating section.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the scour prevention device for offshore wind power piles according to the present embodiment includes a scour prevention enclosure cover 2 and an elastic pressing member 3. The anti-scour surrounding cover 2 is sleeved at the position of the pile foundation 1, and an anti-scour space is formed at the position of the pile foundation 1, so that scour damage of waves and tide to the pile foundation 1 can be effectively reduced, the phenomenon that stone throwing protection is greatly influenced by terrains is avoided, the anti-scour surrounding cover can be applied to complex terrains, the adaptability is wide, the installation and operation are convenient, and the maintenance cost is low; the anti-collision enclosing cover 2 comprises a cover plate 21 and an enclosing frame 22, wherein the enclosing frame 22 is arranged below the cover plate 21, and has a simple structure and is convenient to install; the elastic pressing piece 3 is arranged between the cover plate 21 and the seabed in a compressed mode, can compact sediment on the surface of the seabed, and avoids scouring pits on the surface of the seabed, so that stability of the pile foundation 1 is guaranteed. The invention adopts the mode of combining the anti-collision surrounding cover 2 and the elastic pressing piece 3 to effectively ensure the stability of the pile foundation 1, avoid the wind driven generator accident caused by the instability of the wind power pile foundation 1, and has simple structure and convenient maintenance.
As shown in fig. 3, in this embodiment, a buffer 4 is connected to the front of the enclosing frame 22 in the direction of water flow impact. The heights of the buffer parts 4 are gradually increased along the impact direction of the water flow, so that the direct impact of the water flow on the enclosing frame 22 is effectively reduced; at the same time, the height of the enclosing frame 22 increases in sequence along the impact direction of the water flow, which further reduces the impact of the water flow on the enclosing frame 22. In this embodiment, the buffer member 4 is an arc buffer member, so as to reduce the flushing strength of the water flow to the buffer member 4, and protect the anti-flushing enclosure cover 2.
In this embodiment, a diversion assembly 5 is connected to the rear of the enclosing frame 22 along the water impact direction, and the diversion assembly 5 includes a connection plate 51 and a plurality of diversion channels 52. Wherein, the connecting plate 51 is connected with the enclosing frame 22, the diversion channels 52 are arranged on the connecting plate 51, and each diversion channel 52 is arranged along the water flow impact direction, so as to realize the diversion of the impact water flow and prevent the water flow from accumulating.
In this embodiment, a diversion partition plate 53 is disposed between adjacent diversion channels 52, an arc-shaped transition section 531 is disposed on the diversion partition plate 53, and water supply flow of the arc-shaped transition section 531 is gradually changed. In this embodiment, the split partition 53 includes a fusiform partition and a triangular partition, and in other embodiments, the split partition 53 is shaped so long as a structure capable of ensuring smooth diversion of water flow is within the scope of the present invention.
In the preferred embodiment, the pile foundation 1 is provided with a protection pile 6 in front of the pile foundation 1 along the water impact direction, and the protection pile 6 is arranged at the position of the cover plate 21 close to the pile foundation 1 for reducing the scouring of the pile foundation 1 by the water flow. As shown in fig. 4, in this embodiment, the protection pile 6 is a triangular protection pile, and the triangular protection pile includes two diversion sections 61 and a matching section 62, where the two diversion sections 61 are disposed at an included angle, so as to split the water flow at the front position of the pile foundation 1, thereby avoiding direct flushing of the water flow on the pile foundation 1; the cooperation section 62 is located between two water conservancy diversion sections 61, and cooperation section 62 and pile foundation 1's surface adaptation to avoided rivers to get into pile foundation 1 position, further guaranteed pile foundation 1's stability.
In this embodiment, the cover plate 21 includes a left cover plate 211 and a right cover plate 212, the left cover plate 211 and the right cover plate 212 are provided with semicircular through holes 213, the semicircular through holes 213 are adapted to the outer surface of the pile foundation 1, and the arrangement of the left cover plate 211 and the right cover plate 212 makes the cover plate 21 convenient to detach and install. At this time, the triangular protection pile is split into two pile blocks, the two pile blocks are respectively arranged on the left cover plate 211 and the right cover plate 212, and the two pile blocks are mutually abutted and matched.
In this embodiment, the elastic compression member 3 includes a threaded connection column, a pressing plate and a compression spring, the threaded connection column is screwed to the bottom end of the cover plate 21, the pressing plate compresses the surface of the river bed, and the compression spring is arranged between the threaded connection column and the pressing plate in a compressed state, so that effective compaction of the surface of the seabed is ensured. In the embodiment, the number of the elastic pressing pieces 3 can be set according to actual requirements, so long as the effective compaction of the seabed at the position of the pile foundation 1 can be ensured; the compression springs can be adjusted according to the shape of the seabed surface and the depth of the ravines, and the pressing plate is ensured to effectively compact the seabed surface.
In this embodiment, the enclosing frame 22 is formed by enclosing four sets of beam bodies 221, wherein one set of beam bodies 221 includes a movable beam 222 and two mounting beams 223. Wherein, the movable beam 222 is arranged between the two mounting beams 223, and the two ends of the movable beam 222 are in plug-in fit with the mounting beams 223, so that the movable beam 222 can be disassembled, the pile foundation 1 can conveniently enter the enclosure frame 22, and the operation is convenient.
In this embodiment, a limiting part for limiting the positions of the enclosing frame 22 and the cover plate 21 is arranged between the enclosing frame 22 and the cover plate 21, and the limiting part comprises a limiting groove arranged on the enclosing frame 22 and a limiting protrusion arranged on the cover plate 21, wherein the limiting protrusion is in limiting fit with the limiting groove, in other embodiments, the limiting groove can be arranged on the cover plate 21, and the limiting protrusion can be arranged on the enclosing frame 22.
In the embodiment, before the scour prevention device for the offshore wind power pile is installed, the geographical characteristics of the seabed around the pile foundation 1 are firstly ascertained, and the method mainly comprises ascertaining the surface shape of the seabed and the gully depth; according to the geographical characteristics of the seabed around the pile foundation 1, a proper elastic pressing piece 3 is selected so as to ensure that the elastic pressing piece 3 effectively compacts the seabed, thereby achieving the purposes of improving efficiency and saving cost; the movable beam 222 is disassembled, the pile foundation 1 is placed into the enclosing frame 22, then the movable beam 222 is installed, and the left cover plate 211 and the right cover plate 212 are placed above the enclosing frame 22, so that the anti-scouring device is installed.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (7)
1. The scour prevention device for the offshore wind power pile is characterized by comprising a scour prevention enclosing cover (2) for reducing scour of a pile foundation (1) of the wind power pile by waves and tide and an elastic compression piece (3) for preventing the surface of a seabed from collapsing, wherein the scour prevention enclosing cover (2) is sleeved at the position of the pile foundation (1), the scour prevention enclosing cover (2) comprises a cover plate (21) and an enclosing frame (22) arranged below the cover plate (21), and the elastic compression piece (3) is arranged between the cover plate (21) and the seabed in a compressed mode;
along the water flow impact direction, a buffer piece (4) for reducing the direct impact of water flow on the enclosing frame (22) is connected to the front of the enclosing frame (22), and the heights of the buffer pieces (4) are sequentially increased along the water flow impact direction;
the height of the enclosing frame (22) is sequentially increased along the water flow impact direction;
the water flow impact direction is followed, the rear of enclosing frame (22) is connected with and is used for carrying out reposition of redundant personnel subassembly (5) of reposition of redundant personnel, reposition of redundant personnel subassembly (5) are including connecting plate (51) that are connected with enclosing frame (22) to and locate a plurality of reposition of redundant personnel passageway (52) on connecting plate (51), reposition of redundant personnel passageway (52) are arranged along the water flow impact direction.
2. The scour prevention device for offshore wind power piles according to claim 1, wherein a diversion partition plate (53) is arranged between adjacent diversion channels (52), and an arc-shaped transition section (531) for gradually transiting water supply leveling is arranged on the diversion partition plate (53).
3. The scour prevention device for offshore wind power piles according to claim 1 or 2, wherein a protection pile (6) for reducing scour of the pile foundation (1) by water flow is arranged in front of the pile foundation (1) along the water flow impact direction, and the protection pile (6) is arranged at a position, close to the pile foundation (1), of the cover plate (21).
4. A scour protection for a wind power installation on sea according to claim 3, characterized in that the protection pile (6) is a triangular protection pile comprising two deflector segments (61) arranged at an angle and a mating segment (62) arranged between the deflector segments (61), the mating segment (62) being adapted to the outer surface of the pile foundation (1).
5. The scour protection for offshore wind power piles according to claim 1 or 2, wherein the cover plate (21) comprises a left cover plate (211) and a right cover plate (212), and the left cover plate (211) and the right cover plate (212) are provided with semicircular through holes (213) which are matched with the outer surface of the pile foundation (1).
6. The scour prevention device for offshore wind power piles according to claim 1 or 2, wherein the elastic pressing member (3) comprises a threaded connection column, a pressing plate and a compression spring, the threaded connection column is in threaded connection with the bottom end of the cover plate (21), the pressing plate is pressed on the surface of a river bed, and the compression spring is arranged between the threaded connection column and the pressing plate in a compressed mode.
7. The anti-scouring device for offshore wind power piles according to claim 1 or 2, wherein the enclosing frame (22) is formed by enclosing four groups of beam bodies (221), one group of beam bodies (221) comprises a movable beam (222) for the pile foundation (1) to enter the enclosing frame (22) and two mounting beams (223) in plug-in fit with the movable beam (222), and the movable beam (222) is arranged between the two mounting beams (223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273219.9A CN108571019B (en) | 2017-12-06 | 2017-12-06 | Scour prevention device for offshore wind power pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273219.9A CN108571019B (en) | 2017-12-06 | 2017-12-06 | Scour prevention device for offshore wind power pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108571019A CN108571019A (en) | 2018-09-25 |
| CN108571019B true CN108571019B (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711273219.9A Active CN108571019B (en) | 2017-12-06 | 2017-12-06 | Scour prevention device for offshore wind power pile |
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| Country | Link |
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| CN (1) | CN108571019B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761313A (en) * | 2019-10-22 | 2020-02-07 | 广东华蕴新能源有限公司 | Anti-scouring umbrella-shaped device for offshore wind power pile foundation and installation method |
| CN111764439B (en) * | 2020-07-14 | 2021-12-14 | 震兑工业智能科技有限公司 | Self-maintenance anti-scouring device for offshore wind power pile foundation |
| CN113718860A (en) * | 2021-09-16 | 2021-11-30 | 中国华能集团清洁能源技术研究院有限公司 | Marine wind power erodees protector |
| CN115281132B (en) * | 2022-08-12 | 2023-11-14 | 中国电建集团华东勘测设计研究院有限公司 | Scour-preventing marine culture net cage structure for adapting to fixed offshore wind turbine |
| CN116575404A (en) * | 2023-06-06 | 2023-08-11 | 中国电建集团重庆工程有限公司 | Pile foundation scour protection device for offshore wind power installation |
| CN117738248B (en) * | 2024-02-21 | 2024-05-07 | 湖南工程学院 | Scour protection device of marine wind power pile foundation |
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