CN110886325A - Porous turbulent offshore wind power foundation anti-scouring device and installation method thereof - Google Patents
Porous turbulent offshore wind power foundation anti-scouring device and installation method thereof Download PDFInfo
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- CN110886325A CN110886325A CN201911007751.5A CN201911007751A CN110886325A CN 110886325 A CN110886325 A CN 110886325A CN 201911007751 A CN201911007751 A CN 201911007751A CN 110886325 A CN110886325 A CN 110886325A
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- curtain
- wind power
- steel pile
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- offshore wind
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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
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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
-
- 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
Abstract
A porous turbulent offshore wind power foundation anti-scouring device and an installation method thereof belong to the technical field of offshore wind power engineering. The device comprises a main curtain, a peripheral curtain, curtain supporting rods, an anchoring piece and a connecting structure with a steel pile. The outer side of the main curtain and the inner side of the peripheral curtain are sewn into an annular and umbrella-shaped integral curtain, the integral curtain is arranged at the periphery of the steel pile by adopting a fixed curtain reinforcing fixed ring or flange connecting structure and is embedded under the surface of the seabed by an anchoring piece, so that the periphery of the integral curtain is tightly attached to the surface of the seabed or is embedded under the surface of the seabed. The curtain holes are uniformly distributed on the whole curtain, when the ocean current passes through the scouring curtain, the holes can play a role of turbulence, and the flow velocity and direction of the ocean current are locally changed, so that floating mud and sand in the ocean current are deposited. The device deposits silt in a turbulent flow mode, thereby achieving the purpose of active protection; the installation process is simple, and the pile is not damaged; and the construction period is short, the processing and manufacturing are convenient, and a large amount of manpower, material resources and time are saved.
Description
Technical Field
The invention belongs to the technical field of offshore wind power engineering, and particularly relates to a porous turbulent offshore wind power foundation anti-scouring device and an installation method thereof.
Background
The scour prevention that adopts at present adopts sand quilt or riprap to cover more, and sand quilt scour prevention installation is simple, but from the condition of actual operation, the scouring of pile foundation can not be reduced effectively by sand quilt. If the method of rock-throwing and scour prevention is adopted, the processing and screening of the rocks and how to place the rocks to the specified position around the seabed pile are troublesome problems, and the method of rock-throwing is adopted, so that frequent later maintenance is needed, such as the rocks which are carried away by water power, a diver needs to launch the rocks, and the rocks are manually moved back to the specified scour prevention position.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an anti-scouring device for a porous turbulent offshore wind power foundation and an installation method thereof.
The technical scheme adopted by the invention is as follows: a kind of porous turbolating offshore wind power foundation anti-scouring device, the anti-scouring device includes main curtain and peripheral curtain, the said anti-scouring device also includes the curtain bracing piece, anchoring piece and connection structure set on steel pile, the outside of the said main curtain and inside of the peripheral curtain are made into the whole curtain of annular, umbrella-shaped structure, set up multiple curtain bracing pieces that link together with whole curtain evenly on one side of the whole curtain, the hinge component fixed on said connection structure of end connection of the inside curtain bracing piece of the whole curtain, the anchoring piece of end connection of the outside curtain bracing piece of the whole curtain; and curtain holes are formed in the main curtain and the peripheral curtain.
The connecting structure adopts a fixed curtain which adopts a structure wrapped on the outer cylinder of the steel pile, and one end of the fixed curtain is sewn with the inner side of the main curtain.
And the fixed curtain is fastened by adopting a curtain fixing ring to sleeve the fixed curtain on the steel pile.
The connecting structure comprises a flange outer ring, a flange inner ring and rollers, a plurality of supporting plates are fixedly connected between the flange outer ring and the flange inner ring, a plurality of uniformly distributed rollers are arranged on the inner side of the flange inner ring, and the hinge component is fixed on the outer cylindrical surface of the flange outer ring.
The anchor piece adopts iron anchor, stone or sand bag, the curtain bracing piece adopts steel structure, and the bracing piece also can be replaced by flexible strip corrosion resistant material such as hawser, by similar yurt of diver's straightening during the installation.
The diameter of the curtain hole is 10cm-20 cm.
A method for installing an anti-scouring device of a porous turbulent offshore wind power foundation comprises the following steps:
according to the first method, when the connection structure adopts a fixed curtain structure, the whole curtain is arranged at the periphery of a steel pile in an umbrella shape, the fixed curtain is sleeved on the steel pile, the fixed curtain is clamped on the steel pile through a curtain fixing ring, and the peripheral curtain is tightly attached to or buried under the surface of the sea bed by an anchoring piece;
and secondly, when the connecting structure adopts a flange structure, the flange inner ring of the integral curtain is sleeved on the steel pile, slides to the root of the steel pile through the roller and is arranged at the periphery of the steel pile in an umbrella shape, and the anchoring piece enables the peripheral curtain to be tightly attached to or buried under the surface of the sea bed.
The curtain used in seawater is made of corrosion-resistant materials with certain thickness, the materials can be nylon, polypropylene and other corrosion-resistant materials, holes are uniformly distributed in the curtain, the size of each hole can be set according to the ocean current condition of an offshore wind farm, the size of each hole is generally 10cm-20cm, steel frameworks, nylon ropes and other corrosion-resistant materials are uniformly distributed in the curtain, and one end of the washed curtain is provided with an anchoring device which can be steel iron anchors or ballast objects such as stones and sand bags. When the ocean current is through scouring away the curtain, the hole can play the effect of vortex, and the velocity of flow and the direction of local change ocean current to make the mud floating in the ocean current and the sediment, reach the purpose of initiative scour prevention.
The invention has the beneficial effects that: the anti-scouring device for the multi-hole turbulent offshore wind power foundation comprises a main curtain, a peripheral curtain, a curtain supporting rod, an anchoring piece and a connecting structure arranged on a steel pile. The outer side of the main curtain and the inner side of the peripheral curtain are sewn into an annular and umbrella-shaped integral curtain, the integral curtain is arranged at the periphery of the steel pile by adopting a fixed curtain reinforcing fixed ring or flange connecting structure and is embedded under the surface of the seabed by an anchoring piece, so that the periphery of the integral curtain is tightly attached to the surface of the seabed or is embedded under the surface of the seabed. The curtain holes are uniformly distributed on the curtain and the peripheral curtain, when the ocean current scours the curtain, the holes can play a role of turbulence, and the flow rate and direction of the ocean current are locally changed, so that floating mud and sand in the ocean current are deposited, and the purpose of active scour prevention is achieved. The device deposits silt in a turbulent flow mode, thereby achieving the purpose of active protection; the installation process is simple, and the pile is not damaged; and the construction period is short, the processing and manufacturing are convenient, and a large amount of manpower, material resources and time are saved.
Drawings
FIG. 1 is a snap ring connection structure diagram of a porous turbulent offshore wind power foundation anti-scouring device.
FIG. 2 is a front view of a snap ring connection of a porous turbulent offshore wind power foundation erosion prevention device.
FIG. 3 is a flange connection structure diagram of a porous turbulent offshore wind power foundation anti-scouring device.
Fig. 4 is a schematic view of the anti-scour principle of the device.
In the figure: 1. a main curtain, 2, a peripheral curtain, 3, an anchor, 4, a curtain support rod, 5, a hinge component, 6, a fixed curtain, 7, a curtain hole, 8, a steel pile, 9, a curtain fixing ring, 10, a flange outer ring, 11, a roller, 12, a flange inner ring, 13 and a support plate.
Detailed Description
The structure of the device is further described below with reference to the accompanying drawings.
Example 1
Fig. 1 and 2 show a snap ring connection structure of an anti-scouring device. The anti-scour device comprises a main curtain 1, a peripheral curtain 2, curtain supporting rods 4, an anchoring piece 3 and a connecting structure arranged on a steel pile 8, wherein the outer side of the main curtain 1 and the inner side of the peripheral curtain 2 are sewn into a ring-shaped and umbrella-shaped integral curtain, a plurality of steel curtain supporting rods 4 are uniformly arranged on one surface of the integral curtain and connected with the integral curtain together, the end parts of the curtain supporting rods 4 on the inner side of the integral curtain are connected with hinge members 5 on a fixed curtain 6, the end parts of the curtain supporting rods 4 on the outer side of the integral curtain are connected with the anchoring piece 3, and the anchoring piece 3 adopts an iron anchor (stone or sand bag). The main curtain 1 and the peripheral curtain 2 are provided with curtain holes 7, and the diameter of the curtain hole 7 is 10cm-20 cm. The connecting structure adopts a fixed curtain 6, the fixed curtain 6 adopts a structure of wrapping the outer cylinder of the steel pile 8, and one end of the fixed curtain 6 is sewn with the inner side of the main curtain 1. The fixed curtain 6 is fastened by a curtain fixing ring 9 to fix the fixed curtain 6 on the steel pile 8.
Example 2
Fig. 3 shows a flange connection structure of an anti-scour arrangement. The anti-scour device comprises a main curtain 1, a peripheral curtain 2, curtain supporting rods 4, an anchoring piece 3 and a connecting structure arranged on a steel pile 8, wherein the outer side of the main curtain 1 and the inner side of the peripheral curtain 2 are sewn into a ring-shaped and umbrella-shaped integral curtain, one surface of the integral curtain is uniformly provided with a plurality of steel curtain supporting rods 4 which are connected with the integral curtain together, the end part of each curtain supporting rod 4 on the inner side of the integral curtain is connected with a hinge component 5, the end part of each curtain supporting rod 4 on the outer side of the integral curtain is connected with the anchoring piece 3, and the anchoring piece 3 adopts an iron anchor (stone or sand bag). The main curtain 1 and the peripheral curtain 2 are provided with curtain holes 7, and the diameter of the curtain hole 7 is 10cm-20 cm. The connecting structure comprises a flange outer ring 10, a flange inner ring 12 and rollers 11, a plurality of supporting plates 13 are fixedly connected between the flange outer ring 10 and the flange inner ring 12, a plurality of uniformly distributed rollers 11 are arranged on the inner side of the flange inner ring 12, and the hinge member 5 is fixed on the outer cylindrical surface of the flange outer ring 10.
Fig. 4 shows the working principle of the device, the periphery of the curtain is tightly attached to the surface of the sea bed or is buried under the surface of the sea bed, the steel pile is protected at the root part close to the surface of the sea bed, the inner periphery of the curtain is umbrella-shaped to the periphery of the curtain, when the curtain is washed by silt mixed with the wave flow, the flowing direction of the wave flow and the curtain form an inclined angle, the curtain hole plays a role of turbulence, the flow rate and the direction of the sea flow are locally changed, so that the silt in the sea flow is deposited through the curtain hole, and finally the purpose of active scour prevention is achieved.
The installation method of the porous disturbed flow offshore wind power foundation anti-scouring device comprises the following steps:
according to the method I, when the connecting structure adopts a fixed curtain 6 structure, the whole curtain is arranged at the periphery of a steel pile 8 in an umbrella shape, the fixed curtain 6 is sleeved on the steel pile 8, the fixed curtain 6 is clamped on the steel pile 8 through a curtain fixing ring 9, and the peripheral curtain 2 is tightly attached to or buried under the surface of the sea bed by the anchoring piece 3;
and secondly, when the connecting structure adopts a flange structure, the flange inner ring 12 of the integral curtain is sleeved on the steel pile 8, slides to the root of the steel pile 8 through the roller 11 and is arranged at the periphery of the steel pile 8 in an umbrella shape, and the anchoring piece 3 enables the peripheral curtain 2 to be tightly attached to or buried under the surface of the sea bed.
Claims (7)
1. The utility model provides a porous vortex offshore wind power basis scour prevention device, scour prevention device include main curtain (1) and periphery curtain (2), its characterized in that: the scour prevention device further comprises a curtain supporting rod (4), an anchoring piece (3) and a connecting structure arranged on a steel pile (8), wherein the outer side of the main curtain (1) is connected with the peripheral curtain (2) to form an annular and umbrella-shaped integral curtain, a plurality of curtain supporting rods (4) which are connected with the integral curtain are uniformly arranged on one surface of the integral curtain, the end part of each curtain supporting rod (4) on the inner side of the integral curtain is connected with a hinge component (5) fixed on the connecting structure, and the end part of each curtain supporting rod (4) on the outer side of the integral curtain is connected with the anchoring piece (3); and curtain holes (7) are formed in the main curtain (1) and the peripheral curtain (2).
2. The porous disturbed offshore wind power foundation anti-scouring device of claim 1, characterized in that: the connecting structure adopts a fixed curtain (6), the fixed curtain (6) adopts a structure wrapped on the outer cylinder of the steel pile (8), and one end of the fixed curtain (6) is connected with the main curtain (1).
3. The porous disturbed offshore wind power foundation anti-scouring device of claim 2, characterized in that: the fixed curtain (6) is fastened by adopting a fixed curtain ring (9) to sleeve the fixed curtain (6) on the steel pile (8).
4. The porous disturbed offshore wind power foundation anti-scouring device of claim 1, characterized in that: the connecting structure comprises a flange outer ring (10), a flange inner ring (12) and rollers (11), wherein a plurality of supporting plates (13) are fixedly connected between the flange outer ring (10) and the flange inner ring (12), the rollers (11) uniformly distributed are arranged on the inner side of the flange inner ring (12), and the hinge members (5) are fixed on the outer cylindrical surface of the flange outer ring (10).
5. The porous disturbed offshore wind power foundation anti-scouring device of claim 1, characterized in that: the anchoring piece (3) is an iron anchor, a stone or a sand bag, and the curtain supporting rod (4) is a steel structure or a flexible strip-shaped structure made of corrosion-resistant materials.
6. The porous disturbed offshore wind power foundation anti-scouring device of claim 1, characterized in that: the diameter of the curtain hole (7) is 10cm-20 cm.
7. The method for installing the anti-scouring device for the porous disturbed offshore wind power foundation of claim 1, wherein the method comprises the following steps:
according to the first method, when the connecting structure adopts a fixed curtain (6) structure, the whole curtain is arranged at the periphery of a steel pile (8) in an umbrella shape, the fixed curtain (6) is sleeved on the steel pile (8), the fixed curtain (6) is clamped on the steel pile (8) through a curtain fixing ring (9), and the peripheral curtain (2) is tightly attached to or buried under the surface of a seabed through an anchoring piece (3);
and secondly, when the connecting structure adopts a flange structure, a flange inner ring (12) of the integral curtain is sleeved on the steel pile (8), slides to the root part of the steel pile (8) through a roller (11) and is arranged at the periphery of the steel pile (8) in an umbrella shape, and the anchoring piece (3) enables the peripheral curtain (2) to be tightly attached to or buried under the surface of the sea bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007751.5A CN110886325A (en) | 2019-10-22 | 2019-10-22 | Porous turbulent offshore wind power foundation anti-scouring device and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911007751.5A CN110886325A (en) | 2019-10-22 | 2019-10-22 | Porous turbulent offshore wind power foundation anti-scouring device and installation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111493006A (en) * | 2020-04-22 | 2020-08-07 | 浙江大学 | Device for preventing basic scour by utilizing fishing net in offshore wind farm |
| CN111535352A (en) * | 2020-04-30 | 2020-08-14 | 天津大学 | Offshore wind power foundation anti-scouring structure and construction method thereof |
| CN112854313A (en) * | 2021-01-15 | 2021-05-28 | 天津水运工程勘察设计院 | Assembled offshore wind power pile foundation scouring protection device and installation method thereof |
| CN112922015A (en) * | 2021-01-22 | 2021-06-08 | 上海电气风电集团股份有限公司 | Offshore wind turbine single pile foundation and wind turbine |
| CN113482060A (en) * | 2021-07-14 | 2021-10-08 | 中国长江三峡集团有限公司 | Anti-scouring device and method for pile foundation of ocean engineering structure |
| CN113550346A (en) * | 2021-06-11 | 2021-10-26 | 河海大学 | Offshore wind power single-pile foundation protection device and method |
| CN113718828A (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 | Offshore wind power foundation |
| CN114059547A (en) * | 2022-01-18 | 2022-02-18 | 中国海洋大学 | Repair device for offshore wind power single-pile foundation erosion pit and application method thereof |
| CN114351769A (en) * | 2022-02-15 | 2022-04-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Scouring-prevention low-consumption grouting curtain for offshore wind power cylindrical foundation and construction method |
| CN114687384A (en) * | 2022-05-18 | 2022-07-01 | 江苏交水建智能装备研究院有限公司 | Umbrella-shaped thin film steel pipe pile scour prevention structure |
| CN114855707A (en) * | 2021-06-07 | 2022-08-05 | 喻昕蕾 | Silt-promoting repair device and method for local erosion pit |
| CN115492155A (en) * | 2022-09-26 | 2022-12-20 | 广东华蕴海上风电科技有限公司 | Construction method of sand gathering device for preventing scouring of offshore wind power foundation |
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2019
- 2019-10-22 CN CN201911007751.5A patent/CN110886325A/en active Pending
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| CN111493006B (en) * | 2020-04-22 | 2021-12-28 | 浙江大学 | Device for preventing basic scour by utilizing fishing net in offshore wind farm |
| CN111493006A (en) * | 2020-04-22 | 2020-08-07 | 浙江大学 | Device for preventing basic scour by utilizing fishing net in offshore wind farm |
| CN111535352A (en) * | 2020-04-30 | 2020-08-14 | 天津大学 | Offshore wind power foundation anti-scouring structure and construction method thereof |
| CN111535352B (en) * | 2020-04-30 | 2021-11-02 | 天津大学 | Offshore wind power foundation anti-scouring structure and construction method thereof |
| CN112854313A (en) * | 2021-01-15 | 2021-05-28 | 天津水运工程勘察设计院 | Assembled offshore wind power pile foundation scouring protection device and installation method thereof |
| CN112922015A (en) * | 2021-01-22 | 2021-06-08 | 上海电气风电集团股份有限公司 | Offshore wind turbine single pile foundation and wind turbine |
| CN114855707A (en) * | 2021-06-07 | 2022-08-05 | 喻昕蕾 | Silt-promoting repair device and method for local erosion pit |
| CN113550346A (en) * | 2021-06-11 | 2021-10-26 | 河海大学 | Offshore wind power single-pile foundation protection device and method |
| CN113482060A (en) * | 2021-07-14 | 2021-10-08 | 中国长江三峡集团有限公司 | Anti-scouring device and method for pile foundation of ocean engineering structure |
| CN113718828A (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 | Offshore wind power foundation |
| CN114059547A (en) * | 2022-01-18 | 2022-02-18 | 中国海洋大学 | Repair device for offshore wind power single-pile foundation erosion pit and application method thereof |
| CN114059547B (en) * | 2022-01-18 | 2022-04-08 | 中国海洋大学 | Repair device for offshore wind power single-pile foundation erosion pit and application method thereof |
| CN114351769A (en) * | 2022-02-15 | 2022-04-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Scouring-prevention low-consumption grouting curtain for offshore wind power cylindrical foundation and construction method |
| CN114351769B (en) * | 2022-02-15 | 2022-08-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Scouring-prevention low-consumption grouting curtain for offshore wind power cylindrical foundation and construction method |
| CN114687384A (en) * | 2022-05-18 | 2022-07-01 | 江苏交水建智能装备研究院有限公司 | Umbrella-shaped thin film steel pipe pile scour prevention structure |
| CN115492155A (en) * | 2022-09-26 | 2022-12-20 | 广东华蕴海上风电科技有限公司 | Construction method of sand gathering device for preventing scouring of offshore wind power foundation |
| CN115492155B (en) * | 2022-09-26 | 2023-08-22 | 广东华蕴海上风电科技有限公司 | Construction method of sand gathering device for scour prevention of offshore wind power foundation |
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