CN216713090U - Anti-scouring device for fan foundation - Google Patents
Anti-scouring device for fan foundation Download PDFInfo
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- CN216713090U CN216713090U CN202122636912.6U CN202122636912U CN216713090U CN 216713090 U CN216713090 U CN 216713090U CN 202122636912 U CN202122636912 U CN 202122636912U CN 216713090 U CN216713090 U CN 216713090U
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Abstract
The utility model provides a fan foundation anti-scouring device, wherein at least two through holes are formed in a sand bag, so that two or more sand bags can penetrate through a steel bar and are fixed into blocks, then the sand bag blocks can be annularly sleeved on a fan pile through a large pull ring, then the sand bag is smoothly sunk to the seabed along the steel bar penetrating through the sand bag, finally, professional construction workers can pull out the steel bar and then penetrate through the through holes through fixing devices to fix the sand bags in pairs and to the seabed, and the large pull ring is tensioned to enable the sand bag blocks to be tightly attached to the fan pile. The utility model uses simple and cheap materials such as the sandbag, the steel bar and the pull ring, increases the coverage area of the sandbag on the foundation of the offshore wind turbine by considering the sealing property between the sandbag and the sandbag, the sealing property between the sandbag and the wind turbine pile and the influence of water flow and water resistance in the sinking process of the sandbag, improves the protection effect and avoids the drifting problem existing in other modes such as stone throwing, sand quilt and the like.
Description
Technical Field
The utility model belongs to the technical field of design of offshore wind turbines, and particularly relates to an anti-scouring device for a wind turbine foundation.
Background
Wind energy utilization is a hot spot of new energy development at home and abroad at present. The international onshore wind power plant enters the industrial construction stage through years of development, and offshore wind energy utilization is a green renewable energy source with great development potential developed in recent years. The offshore wind power has the advantages of small occupied area, high wind speed, stable wind direction and high wind energy utilization rate. Therefore, the construction work of offshore wind farms is actively promoted in coastal areas of China. The natural environment that offshore wind farm is located is abominable than land, and the load that the structure receives is more complicated, and the magnitude of a magnitude is bigger, consequently, when the soil body is taken away by rivers and forms the dashing hole around the basis of offshore wind turbine generator system, the pile foundation burial depth reduces, and performances such as stake lateral displacement and vertical bearing capacity will receive serious influence.
In the current practical engineering, there are three main methods for preventing seawater from scouring the foundation of an offshore wind turbine:
(1) the first method is to lay a layer of covering materials such as a grid and the like, and then throw and press heavy objects (such as riprap and the like) on the covering materials to prevent the seawater from taking away silt around the foundation, but the method has high material requirement, complex process and poor economy;
(2) the second method is that sand bags and other coverings are directly thrown and filled into the sea to cover the periphery of the offshore wind turbine pile, so that the loss of silt at the wind turbine foundation is protected to a certain extent, but the falling point of the sand bag is influenced by water flow, the depth of the wind turbine pile, water resistance and the like, so that the protection effect of the method is unsatisfactory;
(3) and the third method is to lay a sand quilt on the periphery of the pile foundation, but the sand quilt is influenced by a hoisting tool, a crane ship and the like, the area of the sand quilt is limited, the protection range is limited, and the thickness of the sand quilt is difficult to ensure due to the influence of sand washing quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-scouring device for a fan foundation, aiming at overcoming the defects in the prior art, and the anti-scouring device is used for solving the problems that soil is lost and the bearing capacity of a pile body is reduced under the action of tide and ocean current of an offshore fan foundation, and ensuring good economy by saving materials on the basis of improving the protection capability of the conventional protection method.
Therefore, the above purpose of the utility model is realized by the following technical scheme:
the utility model provides a fan basis scour prevention device which characterized in that: the anti-scouring device for the fan foundation comprises a sand bag, sand is filled in the sand bag, one end of the sand bag is fixed to the large pull ring, and at least two through holes are formed in the other end of the sand bag to penetrate through the steel bars or enable two adjacent sand bags to be fixed;
the big pull ring penetrating through the sand bag is sleeved on the fan pile.
While adopting the technical scheme, the utility model can also adopt or combine the following technical scheme:
as a preferred technical scheme of the utility model: the zipper is sewn on the sand bag to open the sand bag and fill sand and stone and close the sand bag to seal the sand and stone in the sand bag.
As a preferred technical scheme of the utility model: the aperture of the perforation is smaller than the particle size of the sand filled in the sand bag.
As a preferred technical scheme of the utility model: the big pull ring penetrates through one end of the sand bag.
As a preferred technical scheme of the utility model: fixing devices penetrate through corresponding through holes of the two adjacent sandbags to fix the two adjacent sandbags together and fix the two adjacent sandbags on the seabed.
As a preferred technical scheme of the utility model: the blower foundation anti-scouring device can also be provided with a small pull ring, the small pull ring penetrates through a plurality of sand bags to form a cluster, and the small pull ring is fixed to the large pull ring.
As a preferred technical scheme of the utility model: the small pull ring is a nylon pull ring.
As a preferred technical scheme of the utility model: the big pull ring is a nylon pull ring.
As a preferred technical scheme of the utility model: the sandbag is provided with a suture line between the through hole and the space filled with the sandbag so as to separate the through hole from the space filled with the sandbag.
The utility model provides a fan foundation anti-scouring device, wherein at least two through holes are formed in a sand bag, so that two or more sand bags can penetrate through a steel bar and are fixed into blocks, then the sand bag blocks can be annularly sleeved on a fan pile through a large pull ring, then the sand bag is smoothly sunk to the seabed along the steel bar penetrating through the sand bag, finally, professional construction workers can pull out the steel bar and then penetrate through the through holes through fixing devices to fix the sand bags in pairs and to the seabed, and the large pull ring is tensioned to enable the sand bag blocks to be tightly attached to the fan pile.
The utility model uses simple and cheap materials such as the sandbag, the steel bar and the pull ring, increases the coverage area of the sandbag on the foundation of the offshore wind turbine by considering the tightness between the sandbag and the sandbag, the tightness between the sandbag and the wind turbine pile and the influence of water flow and water resistance in the sinking process of the sandbag, improves the protection effect, avoids the drifting problem of other modes such as stone throwing, sand quilt and the like, and simultaneously considers the economy and the convenience in the practical implementation process of the engineering.
Drawings
FIG. 1 is a schematic view of a fan pile.
Fig. 2 is a vertical schematic view of a sandbag block falling down along a rebar.
Fig. 3 is a schematic plan view of the sandbag blocks as they fall.
Fig. 4 is a schematic plan view of the installed blower base anti-erosion device.
Fig. 5a is a schematic representation of the arrangement of sandbags.
Figure 5b is an illustration of a nylon tab.
Fig. 5c is an illustration of a fixation device.
Detailed Description
The utility model is described in further detail with reference to the figures and specific embodiments.
An anti-scouring device for a fan foundation comprises a sand bag 110, sand is filled in the sand bag 110, one end of the sand bag 110 is fixed to a large pull ring 120, and the other end of the sand bag 110 is provided with at least two through holes 111 for penetrating through steel bars or fixing two adjacent sand bags 110;
the large pull ring 120 passing through the sandbag 110 is sleeved on the fan pile.
Zippers 112 are sewn to sandbags 110 to open sandbags 110 and close sandbags 110 to seal the sandbags 110 within.
The sandbag 110 is provided with a sewing line 113 between the through hole 111 and a space filled with sand in the sandbag 110 to separate the through hole 111 from the space filled with sand in the sandbag 110; in other embodiments, the diameter of the perforation 111 can be set to be smaller than the diameter of the sand filled in the sand bag 110, so that the suture 113 is not considered to be arranged to form the space.
In this embodiment, the large pull ring 120 is passed through one end of the sandbag 110, and in other embodiments, a small pull ring may be provided which is passed through a plurality of sandbags 110 to form a cluster of sandbags 110, the small pull ring being secured to the large pull ring 120. The small pull ring is a nylon pull ring so as to be convenient to tighten.
The large pull ring 120 is a nylon pull ring for convenient tightening.
Specifically, above-mentioned fan basis scour prevention device implements through following mode:
s101, placing a plurality of sandbags on a piling platform of a fan pile foundation in an annular manner by using nylon pull rings (large pull rings) to form sandbag blocks, ensuring that the sandbags are tightly connected with each other, sequentially penetrating the tops of all the sandbags by using the nylon pull rings (large pull rings), and then binding the sandbags on the fan pile in an annular manner;
s102, searching nearby seabed sandstone to fill the sandbag, and sealing the sandbag by using a zipper to ensure the economy and the sealing property of the sandbag;
s103, stacking the perforation at the lower left corner of each sand bag and the perforation at the lower right corner of the adjacent sand bag at the left side, and then penetrating the stacked openings with reinforcing steel bars;
s104, sinking the sandbag blocks along the reinforcing steel bars after preparation, so that the sandbags cannot swing up and down under the influence of seawater resistance in the falling process, the sandbags can be ensured to smoothly fall to the designated positions of the seabed, the coverage area and the tightness of the foundation of the offshore wind turbine are greatly increased, and the protection effect is improved;
and S105, after the sandbags sink to the seabed, professional construction workers pull out the reinforcing steel bars and then penetrate through the through holes by using the fixing devices to fix the sandbags in pairs and fix the sandbags to the seabed.
S106, tightening the nylon pull ring to enable the top of the sand bag to be tightly connected with the fan.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a fan basis scour prevention device which characterized in that: the anti-scouring device for the fan foundation comprises a sand bag, sand is filled in the sand bag, one end of the sand bag is fixed to the large pull ring, and at least two through holes are formed in the other end of the sand bag to penetrate through the steel bars or enable two adjacent sand bags to be fixed;
the big pull ring penetrating through the sand bag is sleeved on the fan pile.
2. The blower foundation anti-scouring device according to claim 1, characterized in that: the zipper is sewn on the sand bag to open the sand bag and fill sand and stone and close the sand bag to seal the sand and stone in the sand bag.
3. The blower foundation anti-scouring device according to claim 1, characterized in that: the aperture of the perforation is smaller than the particle size of the sand filled in the sand bag.
4. The blower foundation anti-scouring device according to claim 1, characterized in that: the big pull ring penetrates through one end of the sand bag.
5. The blower foundation anti-scouring device according to claim 1, characterized in that: fixing devices penetrate through corresponding through holes of the two adjacent sandbags to fix the two adjacent sandbags together and fix the two adjacent sandbags on the seabed.
6. The blower foundation anti-scouring device according to claim 1, characterized in that: the blower foundation anti-scouring device can also be provided with a small pull ring, the small pull ring penetrates through a plurality of sand bags to form a cluster, and the small pull ring is fixed to the large pull ring.
7. A wind turbine foundation anti-scouring device according to claim 6, characterized in that: the small pull ring is a nylon pull ring.
8. The blower foundation anti-scouring device according to claim 1, characterized in that: the big pull ring is a nylon pull ring.
9. The blower foundation anti-scouring device according to claim 1, characterized in that: the sandbag is provided with a suture line between the through hole and the space filled with the sandbag so as to separate the through hole from the space filled with the sandbag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122636912.6U CN216713090U (en) | 2021-10-30 | 2021-10-30 | Anti-scouring device for fan foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122636912.6U CN216713090U (en) | 2021-10-30 | 2021-10-30 | Anti-scouring device for fan foundation |
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| Publication Number | Publication Date |
|---|---|
| CN216713090U true CN216713090U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122636912.6U Active CN216713090U (en) | 2021-10-30 | 2021-10-30 | Anti-scouring device for fan foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855794A (en) * | 2022-07-08 | 2022-08-05 | 浙江大学 | Rock-socketed single pile construction method based on double-pile-casing pile-stabilizing platform |
-
2021
- 2021-10-30 CN CN202122636912.6U patent/CN216713090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855794A (en) * | 2022-07-08 | 2022-08-05 | 浙江大学 | Rock-socketed single pile construction method based on double-pile-casing pile-stabilizing platform |
| CN114855794B (en) * | 2022-07-08 | 2022-11-04 | 浙江大学 | Rock-socketed single pile construction method based on double-pile-casing pile-stabilizing platform |
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