CN106812159A - A kind of offshore wind farm single-pile foundation protection against erosion sleeve - Google Patents
A kind of offshore wind farm single-pile foundation protection against erosion sleeve Download PDFInfo
- Publication number
- CN106812159A CN106812159A CN201710151065.XA CN201710151065A CN106812159A CN 106812159 A CN106812159 A CN 106812159A CN 201710151065 A CN201710151065 A CN 201710151065A CN 106812159 A CN106812159 A CN 106812159A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pile foundation
- section sleeve
- protection against
- wind farm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- E02D5/60—Piles with protecting cases
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of offshore wind farm single-pile foundation protection against erosion sleeve, including ogee section sleeve, enter soil section sleeve, first annular ribs and the second annular stiffening rib, the present invention is adjusted by the arcuate structure of ogee section sleeve to water (flow) direction and flow velocity, is reduced pile peripheral earth by reducing energy that pile foundation washed away and is washed degree；Simple structure of the invention, is capable of achieving land fabrication；Installation steps are simple, after pile foundation installation, the protection against erosion sleeve directly are enclosed within into pile crown, and the soil body is sunk to using deadweight, and convenient construction can greatly save the construction cost of pile foundation scour protection.
Description
Technical field
The present invention relates to a kind of offshore wind farm single-pile foundation protection against erosion sleeve, more particularly to a kind of utilization ogee section sleeve
Concave upward structure protects pile peripheral earth and reduces the offshore pile Anti-scouring device of flow rate of water flow, belongs to ocean engineering technology neck
Domain.
Background technology
The energy is the core resource of modern social development, and with increasingly exhausting for traditional energy, the development of novel energy is compeled
In the eyebrows and eyelashes.Wherein wind-powered electricity generation can be as a kind of renewable novel energy of cleaning, by more and more widely in the form of wind-power electricity generation
It is used in modern social development, ended for the end of the year 2009, the accumulative installed capacity in the whole world has reached 1.59 hundred million kilowatts, 2009 years
Annual adding new capacity more than 3,000 ten thousand kilowatts, amount of increase 31.9%.And China will be completed offshore wind farm by the end of the end of the year 2012
Project amounts to 389.6MW.
At sea in the developing rapidly of Construction of Wind Power, pile foundation is superior with its simple structure, convenient, load-carrying properties of constructing
Feature has obtained extensive utilization.Different from the piling strtucture of land, marine engineering environment is extremely complex, with mud, silty
The sea bed soil of the sea bed geological conditions based on sandy soil etc. easily liquefies, and the ripple in seabed, stream can produce tight around single-pile foundation
The local scour of weight, so as to form pit, influences the stability of single-pile foundation.
For above-mentioned offshore pile easily by the problem of erosion damage, to be that river bottom protection subtracts punching anti-using more in current engineering
Shield measure, river bottom protection subtracts and rushes safeguard procedures and mainly utilize the overcoat based on jackstone, sand pocket to wash away influence area to pile foundation periphery
Protected, with the effect for reaching reduction limiting scour so as to ensure pile foundation stabilization.The above related scour protection is arranged
The Technical comparing applied is ripe, and with substantial amounts of case history, but the preventing principle that the pile foundation scour safeguard procedures embody is to utilize
Overcoat is protected to resist current scour to the pile foundation periphery soil body, it is impossible to reaches and slows down wave current flow velocity so as to fundamentally control
The effect of pile foundation scour processed.
Therefore, for solution offshore pile washes away problem and overcomes the shortcomings of existing pile foundation scour safeguard procedures, the present invention is carried
Go out a kind of concave upward structure protection pile peripheral earth of utilization ogee section sleeve and reduce the offshore pile protection against erosion dress of flow rate of water flow
Put.
The content of the invention
Instant invention overcomes shortcoming of the prior art, there is provided a kind of offshore wind farm single-pile foundation protection against erosion sleeve.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of offshore wind farm single-pile foundation protection against erosion sleeve, including ogee section sleeve, enter soil section sleeve, first annular reinforcement
Rib and the second annular stiffening rib, ogee section sleeve in horn-like, larger open down, the lower end of ogee section sleeve with enter soil section set
Cylinder enters soil section sleeve for hollow cylinder by being welded to connect, and first annular ribs is internally provided with ogee section sleeve
With the second annular stiffening rib, the internal diameter of the lower edge of the ogee section sleeve is equal with the internal diameter for entering soil section sleeve.
The tangent line on edge is axially in parallel with pile foundation on the ogee section.
The tangent line of the ogee section lower edge and enter soil section quill to relatively mitre between 120 ° -150 °.
The internal diameter on the upper edge of described ogee section sleeve slightly larger than institute's protective pile foundation external diameter, described ogee section sleeve
A diameter of 1-9 meters of upper edge.
The diameter of the lower edge of described ogee section sleeve and the equal diameters for entering soil section sleeve, specific size are examined by comprehensive
Worry is protected depending on the factors such as the scouring intensity that the size of pile foundation, the grade of engineering and pile foundation face, a diameter of 6-50 meters.
The height of described ogee section sleeve is determined by the arc length and radian of ogee section, is highly 5-30 meters.
The described height for entering soil section sleeve is 1-5 meters.
Described ogee section sleeve has identical wall thickness with soil section sleeve is entered, and wall thickness is 0.1-0.3 meters.
Compared with prior art, the beneficial effects of the invention are as follows：Offshore wind farm single-pile foundation protection against erosion sleeve is directly covered
Pile peripheral earth, directly protects pile peripheral earth by current scour；The present invention is by the arcuate structure of ogee section sleeve to water (flow) direction
And flow velocity is adjusted, reduces pile peripheral earth by reducing energy that pile foundation washed away and be washed degree；Structure of the invention
Simply, it is capable of achieving land fabrication；Installation steps of the present invention are simple, after pile foundation installation, the protection against erosion directly covered into jacket casing
In pile crown, the soil body is sunk to using deadweight, convenient construction can greatly save the construction cost of pile foundation scour protection.
Brief description of the drawings
Fig. 1 is the floor plan of offshore wind farm single-pile foundation protection against erosion sleeve.
Fig. 2 is the stereogram of offshore wind farm single-pile foundation protection against erosion sleeve.
Fig. 3 is the partial perspective view of offshore wind farm single-pile foundation protection against erosion sleeve.
Wherein, 1 is ogee section sleeve, and 2 is that, into soil section sleeve, 3 is first annular ribs, and 4 is the second annular stiffening rib,
5 is single pile, and 6 is sea bed, and a is the upper edge of ogee section sleeve, and b is ogee section sleeve and the tie point for entering soil section sleeve.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in FIG., a kind of offshore wind farm single-pile foundation protection against erosion sleeve, including ogee section sleeve, enter soil section sleeve,
First annular ribs and the second annular stiffening rib, ogee section sleeve in horn-like, larger open down, under ogee section sleeve
Soil section sleeve is held and entered by being welded to connect, enters soil section sleeve for hollow cylinder, the is internally provided with ogee section sleeve
One annular stiffening rib and the second annular stiffening rib, the internal diameter of the lower edge of the ogee section sleeve and the internal diameter phase for entering soil section sleeve
Deng.
External diameter of the internal diameter on the upper edge of described ogee section sleeve more than institute's protective pile foundation.
The tangent line of the ogee section lower edge and enter soil section quill to relatively mitre should control between 120 ° -150 °,
So that the vertical component of ogee section sleeve institute bearing load can be transferred to ground by entering soil section sleeve, and reach reduction ripple,
Flow the effect of the flow velocity in sea bed face.
A kind of offshore wind farm single-pile foundation protection against erosion sleeve, mainly by ogee section sleeve, enter soil section sleeve and bipassage ring
Shape ribs is constituted, shown in such as Fig. 3 (partial perspective view of offshore wind farm single-pile foundation protection against erosion sleeve).The ogee section sleeve
It is welded to connect with the use of soil section sleeve is entered, the twice annular stiffening rib is welded on the inside of ogee section sleeve to strengthen its structure
Stability.
The Pile Diameter of the example is 2m, and a diameter of 16m of influence area is washed away on pile foundation periphery.Sleeve erosion control of the present invention
The scope for brushing control is determined that the present embodiment selects a diameter of 16m of sleeve by the diameter for entering soil section sleeve.Then ogee section sleeve b
Interface a diameter of 16m, the diameter in shield segment sleeve a sections slightly larger than Pile Diameter to facilitate installation, in the present embodiment
A diameter of 2.2m.The height of ogee section sleeve determines by the arc length and radian of ogee section, ogee section sleeve a points in the example
Tangential direction is axially in parallel with stake, the tangent line of b points with enter soil section quill to relatively mitre be equal to 125 °, so as to obtain anti-arc
The height of section sleeve is 13m.The size and location of the twice annular stiffening rib in ogee section sleeve are steady by the structure of whole sleeve
Fixed to determine, first annular ribs is arranged at the sleeve lining at ogee section sleeve a section 5m in the example, and second
Road annular stiffening rib is arranged at first annular ribs vertical height 5m.Enter the height of soil section sleeve by whole sleeve
Structure and the potential scour depth of pile foundation determine that the height that the example is taken into soil section sleeve is 2m.The wall thickness of sleeve is unified
0.2m。
It is local shown in the overall structure of the example such as Fig. 2 (stereogram of offshore wind farm single-pile foundation protection against erosion sleeve)
Shown in structure such as Fig. 3 (partial perspective view of offshore wind farm single-pile foundation protection against erosion sleeve), the ogee section sleeve knot shown in figure
Structure is the key for ensureing pile foundation protection against erosion.The scour hole of stake leading edge is that kinetic energy of the flow rate of water flow before stake is changed into pressure energy, forms pressure
Power is poor, makes current vertically downward, so as to form what whirlpool scour was formed before stake.The concave upward structure of ogee section sleeve can change
Become the flow direction of current to change flow rate of water flow, reach the effect of the kinetic energy of consumption part wave current；Current are prevented vertically to rush simultaneously
Pile foundation is hit, thus prevents water flow dynamic energy to be changed into pressure energy, formed before stake and washed away；Sleeve directly covers pile peripheral earth, directly protects
Shield pile peripheral earth is from current scour.
The present invention has been described in detail above, but the content is only presently preferred embodiments of the present invention, it is impossible to recognized
It is for limiting practical range of the invention.All impartial changes made according to the present patent application scope and improvement etc., all should still return
Belong within patent covering scope of the invention.
Claims (8)
1. a kind of offshore wind farm single-pile foundation protection against erosion sleeve, it is characterised in that：Including ogee section sleeve, enter soil section sleeve,
One annular stiffening rib and the second annular stiffening rib, ogee section sleeve in horn-like, larger open down, the lower end of ogee section sleeve
Pass through to be welded to connect with soil section sleeve is entered, enter soil section sleeve for hollow cylinder, first is internally provided with ogee section sleeve
Annular stiffening rib and the second annular stiffening rib, the internal diameter of the lower edge of the ogee section sleeve are equal with the internal diameter for entering soil section sleeve.
2. a kind of offshore wind farm single-pile foundation protection against erosion sleeve according to claim 1, it is characterised in that：The ogee section
The tangent line on upper edge is axially in parallel with pile foundation.
3. a kind of offshore wind farm single-pile foundation protection against erosion sleeve according to claim 1, it is characterised in that：The ogee section
The tangent line of lower edge and enter soil section quill to relatively mitre between 120 ° -150 °.
4. a kind of offshore wind farm single-pile foundation protection against erosion sleeve according to claim 1, it is characterised in that：Described anti-arc
The external diameter of the internal diameter more than institute's protective pile foundation on the upper edge of section sleeve, a diameter of 1-9 meters of the upper edge of described ogee section sleeve.
5. a kind of offshore wind farm single-pile foundation protection against erosion sleeve according to claim 1, it is characterised in that：Described anti-arc
The diameter and the equal diameters for entering soil section sleeve of the lower edge of section sleeve, it is a diameter of 6-50 meters.
6. a kind of offshore wind farm single-pile foundation protection against erosion sleeve according to claim 1, it is characterised in that：Described anti-arc
The height of section sleeve is 5-30 meters.
7. a kind of offshore wind farm single-pile foundation protection against erosion sleeve according to claim 1, it is characterised in that：Described buries
The height of section sleeve is 1-5 meters.
8. a kind of offshore wind farm single-pile foundation protection against erosion sleeve according to claim 1, it is characterised in that：Described anti-arc
Section sleeve has identical wall thickness with soil section sleeve is entered, and wall thickness is 0.1-0.3 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151065.XA CN106812159A (en) | 2017-03-14 | 2017-03-14 | A kind of offshore wind farm single-pile foundation protection against erosion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151065.XA CN106812159A (en) | 2017-03-14 | 2017-03-14 | A kind of offshore wind farm single-pile foundation protection against erosion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106812159A true CN106812159A (en) | 2017-06-09 |
Family
ID=59116540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710151065.XA Pending CN106812159A (en) | 2017-03-14 | 2017-03-14 | A kind of offshore wind farm single-pile foundation protection against erosion sleeve |
Country Status (1)
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| CN (1) | CN106812159A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104065A (en) * | 2017-12-27 | 2018-06-01 | 浙江大学 | A kind of offshore wind turbine single-pile foundation protective device for weakening current scour effect |
| CN109372006A (en) * | 2018-11-27 | 2019-02-22 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine foundation scour protection structure and its construction method |
| 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 |
| CN111236290A (en) * | 2020-01-20 | 2020-06-05 | 重庆大学 | Simple environment-friendly device suitable for preventing pier pile foundation from scouring and construction method |
| CN112160288A (en) * | 2020-07-31 | 2021-01-01 | 浙江大学 | Pier local scouring protection device with rotating normal curved surface |
| CN112746556A (en) * | 2021-01-12 | 2021-05-04 | 浙江大学 | Pier scouring protection method combining concave rotating normal curved surface and granular particles |
| CN113186967A (en) * | 2021-05-18 | 2021-07-30 | 华能国际电力江苏能源开发有限公司 | Offshore wind power single-pile foundation device capable of preventing scouring |
| CN113700047A (en) * | 2021-08-30 | 2021-11-26 | 舟山市海大科学技术研究院有限责任公司 | Scouring protection device for ocean wind power generation single-pile foundation |
| CN113774964A (en) * | 2021-09-16 | 2021-12-10 | 盛东如东海上风力发电有限责任公司 | Offshore wind power anti-scouring device with energy dissipation nail |
| CN115323897A (en) * | 2021-11-10 | 2022-11-11 | 浙江理工大学 | Streamline scour prevention device of concave surface of assembly on pier |
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| JPS6128630A (en) * | 1984-07-17 | 1986-02-08 | Ozawa Concrete Kogyo Kk | Erosion-proof structure of steel pipe pile |
| US20120134753A1 (en) * | 2010-06-01 | 2012-05-31 | Simpson Roger L | Bridge pier and abutment scour preventing apparatus with vortex generators |
| CN103469829A (en) * | 2013-09-30 | 2013-12-25 | 山东电力工程咨询院有限公司 | Anti-scouring device of offshore wind power base structure |
| CN204551240U (en) * | 2015-03-27 | 2015-08-12 | 蔡海良 | The bridge pier structure that a kind of anti-whirlpool washes away |
| CN205117623U (en) * | 2015-09-10 | 2016-03-30 | 天津大学前沿技术研究院有限公司 | Send out compound bucket foundation of marine fan that ferroelectric phase combines with ocean current |
| CN205205848U (en) * | 2015-09-21 | 2016-05-04 | 中国电建集团华东勘测设计研究院有限公司 | Cavity gravity type marine wind power basis |
| CN206956792U (en) * | 2017-03-14 | 2018-02-02 | 天津大学 | A kind of offshore wind farm single-pile foundation protection against erosion sleeve |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6128630A (en) * | 1984-07-17 | 1986-02-08 | Ozawa Concrete Kogyo Kk | Erosion-proof structure of steel pipe pile |
| US20120134753A1 (en) * | 2010-06-01 | 2012-05-31 | Simpson Roger L | Bridge pier and abutment scour preventing apparatus with vortex generators |
| CN103469829A (en) * | 2013-09-30 | 2013-12-25 | 山东电力工程咨询院有限公司 | Anti-scouring device of offshore wind power base structure |
| CN204551240U (en) * | 2015-03-27 | 2015-08-12 | 蔡海良 | The bridge pier structure that a kind of anti-whirlpool washes away |
| CN205117623U (en) * | 2015-09-10 | 2016-03-30 | 天津大学前沿技术研究院有限公司 | Send out compound bucket foundation of marine fan that ferroelectric phase combines with ocean current |
| CN205205848U (en) * | 2015-09-21 | 2016-05-04 | 中国电建集团华东勘测设计研究院有限公司 | Cavity gravity type marine wind power basis |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104065A (en) * | 2017-12-27 | 2018-06-01 | 浙江大学 | A kind of offshore wind turbine single-pile foundation protective device for weakening current scour effect |
| CN108104065B (en) * | 2017-12-27 | 2023-03-03 | 浙江大学 | Weaken marine fan single pile basis protection device of rivers scouring action |
| CN109372006A (en) * | 2018-11-27 | 2019-02-22 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine foundation scour protection structure and its construction method |
| CN109372006B (en) * | 2018-11-27 | 2023-11-10 | 中国电建集团华东勘测设计研究院有限公司 | Scour prevention protection structure for offshore wind turbine foundation and construction method thereof |
| 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 |
| CN111236290A (en) * | 2020-01-20 | 2020-06-05 | 重庆大学 | Simple environment-friendly device suitable for preventing pier pile foundation from scouring and construction method |
| CN112160288A (en) * | 2020-07-31 | 2021-01-01 | 浙江大学 | Pier local scouring protection device with rotating normal curved surface |
| CN112746556B (en) * | 2021-01-12 | 2022-04-19 | 浙江大学 | Pier scouring protection method combining concave rotating normal curved surface and granular particles |
| CN112746556A (en) * | 2021-01-12 | 2021-05-04 | 浙江大学 | Pier scouring protection method combining concave rotating normal curved surface and granular particles |
| US11987941B2 (en) | 2021-01-12 | 2024-05-21 | Zhejiang University | Pier scour protection method by combinating a downward bivariate normal distribution surface and granular mixture |
| CN113186967A (en) * | 2021-05-18 | 2021-07-30 | 华能国际电力江苏能源开发有限公司 | Offshore wind power single-pile foundation device capable of preventing scouring |
| CN113700047A (en) * | 2021-08-30 | 2021-11-26 | 舟山市海大科学技术研究院有限责任公司 | Scouring protection device for ocean wind power generation single-pile foundation |
| CN113774964A (en) * | 2021-09-16 | 2021-12-10 | 盛东如东海上风力发电有限责任公司 | Offshore wind power anti-scouring device with energy dissipation nail |
| CN115323897A (en) * | 2021-11-10 | 2022-11-11 | 浙江理工大学 | Streamline scour prevention device of concave surface of assembly on pier |
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Application publication date: 20170609 |
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