CN211898581U - Erosion protection device for offshore wind power pile foundation - Google Patents
Erosion protection device for offshore wind power pile foundation Download PDFInfo
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- CN211898581U CN211898581U CN201921934695.5U CN201921934695U CN211898581U CN 211898581 U CN211898581 U CN 211898581U CN 201921934695 U CN201921934695 U CN 201921934695U CN 211898581 U CN211898581 U CN 211898581U
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- ballast
- corrosion
- offshore wind
- pile foundation
- snap ring
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- 230000003628 erosive effect Effects 0.000 title description 2
- 230000007797 corrosion Effects 0.000 claims abstract description 32
- 238000005260 corrosion Methods 0.000 claims abstract description 32
- 230000002265 prevention Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 7
- 241001474374 Blennius Species 0.000 claims abstract description 5
- 238000009991 scouring Methods 0.000 abstract description 20
- 238000009434 installation Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 239000004575 stone Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses an offshore wind power pile foundation's scour prevention protection device, scour prevention protection device includes the snap ring and arranges the corrosion-resistant curtain in the snap ring periphery, interval arrangement has first ballast and second ballast on the corrosion-resistant curtain, first ballast is the same with the radial direction of snap ring, the second ballast is the same with snap ring hoop direction, the last seaweed form material of having arranged of corrosion-resistant curtain. The utility model also discloses an offshore wind power pile foundation's scour prevention protection device's installation method. The utility model provides an anti-scouring device which can play the role of integral protection and ensure the anti-scouring effect; the utility model provides an installation method can effectively save installation time.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power engineering, concretely relates to scour prevention protection device on marine wind power pile basis.
Background
The offshore wind power pile foundation is the key place for supporting the whole offshore wind power machine, the manufacturing cost is about 14 percent of the whole offshore wind power generation device, and most accidents of the offshore wind power generation device are caused by unstable pile foundation. Due to the action of waves and tide, the sand around the offshore wind power pile foundation can be flushed by the well to form a flushing pit, and the flushing pit can influence the stability of the pile foundation. In addition, the water flow mixed with silt near the surface of the seabed continuously washes the pile foundation, corrodes and damages the surface of the pile foundation, and can cause the apparent collapse of the offshore wind turbine unit in serious cases.
The scour protection of adopting at present adopts sand to be carried out the scour protection by perhaps throwing the stone, proves through project practice, adopts sand to be washed by the scour protection to not play the effect of scour protection, and sand exists by the bottom moreover and is undercut, the sand is taken place by the phenomenon of subsiding. Adopt and throw the stone protection, because at present do not have the stone throwing ship (taking DP function and dedicated stone cloth machinery) of scour protection of being exclusively used in domestically, adopt and throw the stone protection, hardly lay the even of stone, the effect of scour protection is also not very ideal. And at the in-process of riprapping, owing to receive the influence of wave and ocean current, the stone is washed away easily, and this just needs diver to launch, carries the stone to scour prevention position, and diver's underwater operation time is short, and work load is very big, and at the in-process of riprapping, the anticorrosive paint of steel-pipe pile or sacrificial anode protection destruction cause expensive restoration expense under water very easily moreover.
In order to improve the anti-scouring effect, for example, chinese patent publication No. CN103469829A discloses an anti-scouring device for an offshore wind power infrastructure, which includes a conical flow guide device, the conical flow guide device is disposed at the periphery of a pile and located at a mud line, a skirt board is disposed below the conical flow guide device, and the skirt board is disposed in seabed soil. The conical flow guide device is a conical cap, and the gradient of the conical flow guide device is 3: 1. When the diameter of stake is not more than 2m, the high diameter of 2.5 times stake of skirtboard, when the diameter of stake is greater than 2m, the skirtboard height is the diameter of 1.5 times stake, and the radius of skirtboard equals with the radius that erodees the hole, and the height of skirtboard equals with the degree of depth that erodees the hole. Chinese patent publication No. CN103233444A discloses an underwater riprap foundation bed and side slope anti-erosion structure, which includes an anti-erosion device disposed on the surface of the foundation bed or side slope, a fixing structure for fixing the anti-erosion device on the foundation bed or side slope, and a groove dug along the lower end of the surface of the foundation bed or side slope, wherein the lower end of the anti-erosion device is embedded in the groove for fixation, and the anti-erosion device is a geotechnical structure formed by filling sand and stone fillers into a casing made of geotechnical materials.
Therefore, the technical problem to be solved is urgently needed to improve the anti-scour protection effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an offshore wind power pile foundation anti-scouring device and an installation method, the utility model provides an anti-scouring device can play the whole protection role, guarantees the anti-scouring effect; the utility model provides an installation method can effectively save installation time.
The utility model provides a following technical scheme:
the utility model provides an offshore wind-powered pile foundation's scour prevention protection device, scour prevention protection device includes the snap ring and arranges the corrosion-resistant curtain in the snap ring periphery, interval arrangement has first ballast and second ballast on the corrosion-resistant curtain, first ballast is the same with the radial direction of snap ring, the second ballast is the same with snap ring hoop direction, the last seaweed form material of having arranged of corrosion-resistant curtain.
The first ballast is arranged along the direction close to the clamping ring, the second ballast is arranged along the edge of the corrosion-resistant curtain, and the second ballast is located between the first ballast.
Preferably, a first ballast and a second ballast are arranged on both sides of the corrosion-resistant curtain.
Preferably, the first ballast weight is bound to the corrosion resistant curtain by stitching or string of strings.
Preferably, a string or a hard framework is arranged at the edge of the corrosion-resistant curtain, and a second ballast is arranged above the string or the hard framework. In particular, the second ballast is tied to the drapery by stitching or string of strings.
Preferably, the first ballast and the second ballast are sand bags.
Specifically, the corrosion-resistant curtain is pressed by a nut gasket or a string is sewn on the corrosion-resistant curtain and then tied to the clamping ring through the string. The corrosion-resistant curtain is made of corrosion-resistant nylon, polypropylene and the like.
The utility model provides an offshore wind power pile foundation's scour prevention protection device's installation method includes following step:
(1) adopting a pile hammer to hammer the steel pipe pile to a proper height, and synchronously assembling an anti-scouring protection device on the shore or on the ship;
(2) anti-scouring device fixed connection is good through the rope, adopts supplementary hoist and mount steelframe to lift anti-scouring device, hangs after passing the steel-pipe pile body and puts on the seabed, cuts off near the surface of water rope or diver's offal and removes the shackle, and the hoist and mount rope is reserved and is used next time, and anti-scouring device installation is accomplished.
The specific process of assembling the anti-scouring protection device is as follows: installing a string or a hard skeleton on the corrosion resistant curtain, connecting the string or the hard skeleton and the corrosion resistant curtain to the clamping ring, and installing a first ballast, a second ballast and a seaweed-like material.
The utility model discloses still provide another kind of offshore wind power pile foundation's anti-scour protection device's installation method, installation method includes following step:
(1) hammering the steel pipe pile to a proper height by adopting a pile hammer, and synchronously assembling an anti-scouring protection device on the shore or the ship, wherein a clamping ring and a curtain in the anti-scouring protection device are split into two hoops which are similar to a semi-circular pipeline and can be split;
(2) prevent that scouring device fixed connection is good through the rope, adopts supplementary hoist and mount steelframe to lift by crane anti-scouring device, opens snap ring and curtain, adjusts well and fasten with bolt or buckle with two parts snap ring and curtain behind the traversing steel-pipe pile body, on hoisting the seabed, near the surface of water cut rope or diver launch and remove the shackle, hoist and mount rope and reserve and do next use, the installation of anti-scouring device is accomplished.
Compared with the prior art, the utility model provides an anti-scour device has following technological effect: the utility model provides an anti-scour device is a holistic anti-scour protection device, and stability is good, is difficult to flip anti-scour device under the storm wind condition, perhaps moves. The utility model provides a corrosion-resistant seaweed form material of arranging on the scour prevention device makes the silt siltation that carries in the ocean current easily, has further stabilized the effect of scour prevention. The anti-scour device provided by the utility model is mostly installed on the shore or on the ship, thus shortening the waiting time and construction period of the ship and reducing the construction cost; the installation process is simple and convenient, does not need or less underwater operation time, and reduces the risk of underwater operation of divers.
Drawings
Fig. 1 is a schematic structural view of an anti-erosion protection device provided by the present invention;
fig. 2 is an installation schematic diagram of the anti-erosion protection device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The utility model provides an offshore wind power pile foundation's scour prevention protection device 1 includes snap ring 11 and arranges corrosion-resistant curtain 12 in snap ring 11 periphery, and interval arrangement has ballast 14 on corrosion-resistant curtain 12, and ballast 14 includes first ballast and second ballast, has arranged seaweed form material 13 on corrosion-resistant curtain 12.
Wherein, the first ballast is the same with the radial direction of the snap ring 11 and is arranged along the direction close to the snap ring, and the first ballast is bound on the corrosion-resistant curtain 12 by sewing or string of strings. The second ballast is the same as the clamping ring 11 in the circumferential direction and is arranged at the edge of the corrosion-resistant curtain 12, a string or a hard framework 15 is arranged at the edge of the corrosion-resistant curtain 12, and the second ballast is tied above the string or the hard framework through sewing or stringing.
Wherein the first ballast and the second ballast are sand bags.
Wherein the corrosion-resistant curtain 12 is pressed by a nut washer or a string is sewed on the corrosion-resistant curtain and then tied to the clasp 11 by the string.
The utility model provides an anti-scour protection device's installation method includes following step:
(1) adopting a pile hammer to hammer the steel pipe pile 2 to a proper height, and synchronously assembling the anti-scour protection device 1 on the shore or the ship;
(2) prevent that scouring device fixed connection is good through rope 3, adopts supplementary hoist and mount steelframe 4 to lift by crane anti-scouring device 1, on passing 2 bodies of steel-pipe pile and lifting to the seabed, cut off rope 3 or diver and launch and remove the shackle near the surface of water, hoist and mount rope 3 and reserve and use next time, anti-scouring device 1 installation is accomplished.
The above-mentioned detailed description of the technical solution and the beneficial effects of the present invention have been described in detail, it should be understood that the above is only the most preferred embodiment of the present invention, not used for limiting the present invention, any modification, supplement, equivalent replacement, etc. made within the principle scope of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides an offshore wind-powered pile foundation's scour prevention protection device, a serial communication port, scour prevention protection device includes the snap ring and arranges the corrosion-resistant curtain in the snap ring periphery, interval arrangement has first ballast and second ballast on the corrosion-resistant curtain, first ballast is the same with the radial direction of snap ring, the second ballast is the same with snap ring hoop direction, the last seaweed form material of having arranged of corrosion-resistant curtain.
2. An anti-scour protection for an offshore wind power pile foundation according to claim 1, wherein the first ballast weights are arranged in a direction close to the clasps, and the second ballast weights are arranged along the edges of the corrosion resistant curtains, the second ballast weights being located between the first ballast weights.
3. An anti-scour protection for an offshore wind power pile foundation according to claim 2, wherein the corrosion-resistant curtain has first and second ballast weights disposed on both sides.
4. An anti-scour protection for an offshore wind pile foundation according to claim 2, wherein the first ballast is tied to a corrosion resistant curtain by stitching or string of strings.
5. An anti-scour protection for an offshore wind power pile foundation according to claim 2, wherein a string or a rigid skeleton is arranged at the edge of the corrosion-resistant curtain, and a second ballast is arranged above the string or the rigid skeleton.
6. An anti-scour protection for an offshore wind turbine foundation according to any one of claims 1 to 5, wherein the first ballast and the second ballast are sandbags.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934695.5U CN211898581U (en) | 2019-11-11 | 2019-11-11 | Erosion protection device for offshore wind power pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934695.5U CN211898581U (en) | 2019-11-11 | 2019-11-11 | Erosion protection device for offshore wind power pile foundation |
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| Publication Number | Publication Date |
|---|---|
| CN211898581U true CN211898581U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921934695.5U Active CN211898581U (en) | 2019-11-11 | 2019-11-11 | Erosion protection device for offshore wind power pile foundation |
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| CN (1) | CN211898581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886326A (en) * | 2019-11-11 | 2020-03-17 | 浙江大学 | Anti-scouring protection device for offshore wind power pile foundation and installation method |
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2019
- 2019-11-11 CN CN201921934695.5U patent/CN211898581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886326A (en) * | 2019-11-11 | 2020-03-17 | 浙江大学 | Anti-scouring protection device for offshore wind power pile foundation and installation method |
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