CN203487564U - Anti-flushing device of offshore wind power base structure - Google Patents
Anti-flushing device of offshore wind power base structure Download PDFInfo
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- CN203487564U CN203487564U CN201320617247.9U CN201320617247U CN203487564U CN 203487564 U CN203487564 U CN 203487564U CN 201320617247 U CN201320617247 U CN 201320617247U CN 203487564 U CN203487564 U CN 203487564U
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Abstract
The utility model discloses an anti-flushing device of an offshore wind power base structure. The anti-flushing device of the offshore wind power base structure comprises a conical flow guide device which is arranged on the periphery of a pile and located on a mud line. An apron board is arranged below the conical flow guide device and arranged in seabed soil. The conical flow guide device is a conical cap. The gradient of the conical flow guide device is 3: 1. If the diameter of the pile is no larger than 2m, the height of the apron board is 2.5 times the diameter of the pile. If the diameter of the pile is larger than 2m, the height of the apron board is 1.5 times the diameter of the pile. The radius of the apron board is equal to that of a scour pit. The height of the apron board is equal to the depth of the scour pit. Compared with a traditional method, the anti-flushing device of the offshore wind power base structure has the advantages that regular check and maintenance are not needed; added structural cost is little and can be neglected; the anti-flushing effect is good and the dynamic property of the structure will not change in the service period.
Description
Technical field
The utility model relates to a kind of Anti-scouring device of offshore wind power foundation structure.
Background technology
The principal mode of offshore wind power foundation structure is piling strtucture, and ocean current can cause pile foundation to wash away, and at the conglobate scour hole of surrounding's shape of stake, causes the vertical and lateral bearing power of stake to reduce.This is also the FAQs of offshore platform.
In order to reduce to wash away the impact on structure, all the time, main employing at stake jackstone or increase stake and native contact length around, makes to wash away rear and equals designing pile length with native contact length.
Jackstone method is that stone is packed in wire mesh cage, and is thrown into marinely, makes the stifled stone walling of its formation of surrounding in stake one, and when washing away while forming scour hole, gabion sinks to filling up the seabed soil being washed naturally.Due to seawater corrosion effect, wire mesh cage will destroy in use for some time, causes stone to be scattered and is washed away by seawater, again forms scour hole.Therefore, although jackstone method is simple, need to make regular check on, once new scour hole forms, need jackstone again.
Although it is feasible to increase the long method of stake, infrastructure cost and construction cost all will have larger increase, and before and after washing away, the dynamic characteristics of structure has certain variation.Moreover, due to the difficulty of piling, increase the long driving depth that may cause of stake and do not reach designing requirement.
Therefore there is certain deficiency in the method for existing protection against erosion.
Utility model content
The deficiency existing for solving prior art; the utility model discloses a kind of Anti-scouring device of offshore wind power foundation structure; this device is by the combination of conical flow guiding device and apron board structure; reduced the reflection speed after current and pile lining clash into; thereby the silt that has slowed down seabed soil starts; meanwhile, adopt skirtboard protection stake week soil, in order to avoid all soil of stake is washed.
For achieving the above object, concrete scheme of the present utility model is as follows:
An Anti-scouring device for offshore wind power foundation structure, comprises conical flow guiding device, and conical flow guiding device is located at the peripheral of stake and is positioned at mud line place, and the below of conical flow guiding device is provided with skirtboard, and described skirtboard is arranged in seabed soil.
Described conical flow guiding device is tapered cap.
The gradient of described conical flow guiding device is 3:1.
The radius calculation formula of described skirtboard is:
In formula: the radius that r is skirtboard, D is the diameter of stake, the degree of depth that S is scour hole,
angle of friction for seabed soil.
When the diameter of described stake is not more than 2m, the height of skirtboard is the diameter of 2.5 times of stakes, and when the diameter of stake is greater than 2m, skirtboard height is the diameter of 1.5 times of stakes.
Relation between the diameter of the radius of described conical flow guiding device, the radius of skirtboard and stake is: R-r=0.2D
Wherein, R is the radius of conical flow guiding device, the radius that r is skirtboard; D is the diameter of stake.
The radius of described skirtboard equates with the radius of scour hole.
The height of described skirtboard and the deep equality of scour hole.
The effect of tapered cap is to avoid current before stake, to form shape of a hoof whirlpool, thereby avoids the sharply variation of water velocity to cause silt to start, and the effect of skirtboard is the loss of protection stake week soil.
The gradient of tapered cap is 3:1, and the radius r of skirtboard is calculated by (1) formula, and the radius R of tapered cap is greater than the radius of skirtboard, R-r=0.2D.For diameter, be not more than the stake of 2m, the height of its skirtboard is 2.5D, otherwise skirtboard height is 1.5D.
The beneficial effects of the utility model:
The utility model, by conical flow guiding device and apron board structure combination, has reduced the reflection speed after current and pile lining clash into, thereby has slowed down the silt startup of seabed soil, meanwhile, adopts skirtboard protection stake week native, in order to avoid all soil of stake is washed.The utility model is compared with conventional method has following advantage:
1. do not need to make regular check on and safeguard.
2. the infrastructure cost increasing is less, can ignore.
3. protection against erosion is effective, and the dynamic characteristics of structure can not change in-service.
Accompanying drawing explanation
Fig. 1 Anti-scouring structure elevation;
The plan view of Fig. 2 Anti-scouring structure;
In figure, 1 tapered cap, 2 skirtboards, 3.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is elaborated:
As shown in Figure 1, a kind of Anti-scouring device of offshore wind power foundation structure, comprises conical flow guiding device, and conical flow guiding device is located at the peripheral of stake 3 and is positioned at mud line place, and the below of conical flow guiding device is provided with skirtboard 2, and described skirtboard 2 is arranged in seabed soil.
Described conical flow guiding device is tapered cap 1.
The gradient of described conical flow guiding device is 3:1.
The radius calculation formula of described skirtboard 2 is:
In formula: r is the radius of skirtboard 2, D is the diameter of stake 3, the degree of depth that S is scour hole,
angle of friction for seabed soil.
When the diameter of described stake 3 is not more than 2m, the height of skirtboard 2 is the diameter of 2.5 times of stakes 3, and when the diameter of stake 3 is greater than 2m, skirtboard 2 is highly the diameter of 1.5 times of stakes 3.
Relation between the diameter of the radius of the radius of described conical flow guiding device, skirtboard 2 and stake 3 is: R-r=0.2D
Wherein, R is the radius of conical flow guiding device, and r is the radius of skirtboard 2; D is the diameter of stake 3.
The radius of described skirtboard 2 equates with the radius of scour hole.
The height of described skirtboard 2 and the deep equality of scour hole.
The effect of tapered cap 1 is to avoid current in the front formation shape of a hoof of stake 3 whirlpool, thereby avoids the sharply variation of water velocity to cause silt to start, and the effect of skirtboard 2 is the loss of 3 weeks soil of protection stake.
The gradient of tapered cap 1 is 3:1, and the radius r of skirtboard 2 is calculated by (1) formula, and the radius R of tapered cap 1 is greater than the radius of skirtboard 2, R-r=0.2D.For diameter, be not more than the stake 3 of 2m, the height of its skirtboard 2 is 2.5D, otherwise skirtboard 2 is highly 1.5D.
The utility model, by the combination of conical flow guiding device and skirtboard 2 structures, has reduced the reflection speed after current and pile lining clash into, thereby has slowed down the silt startup of seabed soil, meanwhile, adopts skirtboard protection stake week native, in order to avoid all soil of stake is washed.
Claims (8)
1. an Anti-scouring device for offshore wind power foundation structure, is characterized in that, comprises conical flow guiding device, and conical flow guiding device is located at the peripheral of stake and is positioned at mud line place, and the below of conical flow guiding device is provided with skirtboard, and described skirtboard is arranged in seabed soil.
2. the Anti-scouring device of a kind of offshore wind power foundation structure as claimed in claim 1, is characterized in that, described conical flow guiding device is tapered cap.
3. the Anti-scouring device of a kind of offshore wind power foundation structure as claimed in claim 1, is characterized in that, the gradient of described conical flow guiding device is 3:1.
4. the Anti-scouring device of a kind of offshore wind power foundation structure as claimed in claim 1, is characterized in that, the radius calculation formula of described skirtboard is:
In formula: the radius that r is skirtboard, D is the diameter of stake, the degree of depth that S is scour hole,
angle of friction for seabed soil.
5. the Anti-scouring device of a kind of offshore wind power foundation structure as claimed in claim 1, is characterized in that, when the diameter of described stake is not more than 2m, the height of skirtboard is the diameter of 2.5 times of stakes, and when the diameter of stake is greater than 2m, skirtboard height is the diameter of 1.5 times of stakes.
6. the Anti-scouring device of a kind of offshore wind power foundation structure as claimed in claim 1, is characterized in that, the relation between the diameter of the radius of described conical flow guiding device, the radius of skirtboard and stake is: R-r=0.2D
Wherein, R is the radius of conical flow guiding device, the radius that r is skirtboard; D is the diameter of stake.
7. the Anti-scouring device of a kind of offshore wind power foundation structure as claimed in claim 1, is characterized in that, the radius of described skirtboard equates with the radius of scour hole.
8. the Anti-scouring device of a kind of offshore wind power foundation structure as claimed in claim 1, is characterized in that, the height of described skirtboard and the deep equality of scour hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617247.9U CN203487564U (en) | 2013-09-30 | 2013-09-30 | Anti-flushing device of offshore wind power base structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617247.9U CN203487564U (en) | 2013-09-30 | 2013-09-30 | Anti-flushing device of offshore wind power base structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203487564U true CN203487564U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617247.9U Expired - Fee Related CN203487564U (en) | 2013-09-30 | 2013-09-30 | Anti-flushing device of offshore wind power base structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203487564U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112177030A (en) * | 2020-09-25 | 2021-01-05 | 上海交通大学 | Offshore wind turbine single-pile foundation with skirt edge and rib and construction method thereof |
| CN112177031A (en) * | 2020-09-25 | 2021-01-05 | 上海交通大学 | Offshore wind turbine single pile foundation with radiation rib plates and anti-scouring cover |
| 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 |
-
2013
- 2013-09-30 CN CN201320617247.9U patent/CN203487564U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103469829B (en) * | 2013-09-30 | 2016-02-10 | 山东电力工程咨询院有限公司 | A kind of Anti-scouring device of offshore wind power foundation structure |
| 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 |
| CN112177030A (en) * | 2020-09-25 | 2021-01-05 | 上海交通大学 | Offshore wind turbine single-pile foundation with skirt edge and rib and construction method thereof |
| CN112177031A (en) * | 2020-09-25 | 2021-01-05 | 上海交通大学 | Offshore wind turbine single pile foundation with radiation rib plates and anti-scouring cover |
| CN112177030B (en) * | 2020-09-25 | 2022-01-25 | 上海交通大学 | Offshore wind turbine single-pile foundation with skirt edge and rib and construction 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 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20160930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |