CN217027226U - Scour prevention device for bottom pile foundation of ocean engineering - Google Patents
Scour prevention device for bottom pile foundation of ocean engineering Download PDFInfo
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- CN217027226U CN217027226U CN202220559374.7U CN202220559374U CN217027226U CN 217027226 U CN217027226 U CN 217027226U CN 202220559374 U CN202220559374 U CN 202220559374U CN 217027226 U CN217027226 U CN 217027226U
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Abstract
The utility model discloses an anti-scouring device for a bottom pile foundation of ocean engineering, which comprises an anchoring frame, wherein the anchoring frame is formed by splicing a plurality of anchoring units which are circumferentially arranged along the circumferential direction of the bottom pile, the anchoring units can be anchored with the foundation of the bottom pile, and a columnar space for the bottom pile to pass through is arranged in the center of the anchoring frame. The part that the anchor unit is close to the column space is the interior flange of arcuation, and the part of keeping away from the column space is the outer flange, and the concatenation of the interior flange among a plurality of anchor units is tubular structure, and is fixed through the connecting plate between interior flange and the outer flange, and the connecting plate of adjacent anchor unit can be dismantled fixedly, and the vertical height of interior flange is greater than the vertical height of outer flange. A protective net is laid at the upper end of the anchoring unit, benthos are arranged in the anchoring unit, and the benthos are limited between the protective net and the upper surface of the bottom pile foundation. The utility model can reduce the time consumed by assembly at the seabed and improve the construction efficiency.
Description
Technical Field
The utility model relates to the technical field of ocean pile foundation protection, in particular to an anti-scouring device for an ocean engineering bottom pile foundation.
Background
In ocean engineering, the movement of silt at the bottom of a seabed structure and a seabed near the seabed structure caused by the action of waves and water flow is known as seabed scouring phenomenon. According to the analysis of the ocean scouring dynamic principle, the formation of the ocean bottom scouring is mainly characterized in that after an ocean structure is installed on the ocean bottom, the balance of an original underwater flow field is broken, the speed of local water flow is accelerated, and the water flow flowing normally forms a certain pressure gradient and forms shearing force on the ocean bottom, so that the scouring phenomenon is caused. Meanwhile, the appearance of the ocean structure also changes the direction of water flow, so that the water flow generates turbulence and vortex, the scouring effect is quickened, and great threat is caused to the safety of the ocean structure.
In the ocean engineering practice, the most common seabed structure scour prevention measures comprise underwater stone throwing, sand bag piling, concrete mattress sinking, protection support pile driving and the like. However, the leading idea of the above anti-scour method is "blocking", and it is desirable to prevent underwater scour from occurring by some scour-resistant objects. Years of practice prove that the method achieves a certain anti-scouring effect, but the problem of secondary scouring of the seabed can also occur due to the existence of solid objects such as underwater riprap, sand bags, concrete mattress pads and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an anti-scouring device for a bottom pile foundation of ocean engineering, which is used for solving the problem that the bottom pile foundation of ocean engineering is easy to scour.
In order to solve the above technical problems, the following technical solutions are proposed in one or more embodiments of the present invention:
the utility model provides an ocean engineering is scour prevention device for bottom pile foundation, includes the anchor frame, and the anchor frame is formed by a plurality of anchor units concatenation of arranging along bottom pile circumferencial direction around, and the anchor unit can be with the basis anchor of bottom pile, and the center department of anchor frame has the column space that holds the bottom pile and pass.
The part that the anchor unit is close to the column space is the interior flange of arcuation, and the part of keeping away from the column space is the outer flange, and the concatenation of the interior flange among a plurality of anchor units is tubular structure, and is fixed through the connecting plate between interior flange and the outer flange, and the connecting plate of adjacent anchor unit can be dismantled fixedly, and the vertical height of interior flange is greater than the vertical height of outer flange.
A protective net is laid at the upper end of the anchoring unit, the periphery of the protective net is fixed through the inner edge plate, the outer edge plate and the connecting plate respectively, benthonic organisms are arranged in the anchoring unit, and the benthonic organisms are limited between the protective net and the upper surface of the bottom pile foundation.
The beneficial effects of one or more of the above technical solutions are as follows:
according to the utility model, a plurality of anchoring units are spliced to form an anchoring frame, and a single anchoring unit can be prefabricated in a factory and then spliced at the seabed, so that compared with other integral or completely-assembled protecting devices at the seabed, the time consumed by assembly at the seabed can be reduced, and the construction efficiency is improved.
According to the marine benthos anchor, the anchoring units and the protective nets paved on the upper portions of the anchoring units form a growth space with a certain limiting function, marine benthos can be limited from being separated from the anchoring units, the marine benthos in the anchoring units can cover the surface of a foundation, and the foundation is prevented from being washed.
According to the utility model, the middle part of the anchoring frame forms a columnar space for accommodating the bottom pile to pass through, so that the anchoring frame can tightly surround the periphery of the bottom pile, and the special structural design of the high-pressure outer edge plate of the inner edge plate in the anchoring unit enables the part of the protective net close to the bottom pile to be higher than the part far away from the bottom pile, so that the quantity of marine benthos close to the bottom pile is more, and the foundation anti-scouring capability of the part close to the bottom pile is stronger.
In the utility model, the reinforcing ground nail is adopted to connect the connecting plate in the anchoring unit and the foundation of the bottom pile, and the structural strength of the foundation can be enhanced under the condition that the anchoring frame is stably arranged above the foundation of the bottom pile.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are included to illustrate an exemplary embodiment of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic top view of an anchoring frame in an embodiment of the utility model;
fig. 2 is a schematic view of a single anchoring unit engaged with a protection net in an embodiment of the present invention;
fig. 3 is a schematic view showing the positional relationship between the bottom pile and the anchoring unit in the embodiment of the present invention.
Wherein, 1, an anchoring unit; 2. a protective net; 3. piling at the bottom; 4. a columnar space; 101. a peripheral plate; 102. a connecting plate; 103. an inner edge plate; 104. a first reinforcement ground nail; 105. a second reinforcement ground nail; 106. and (4) connecting the holes.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the drawings.
The structures, the proportions, the sizes, and the like shown in the drawings attached to the present specification are only used for matching with the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used for limiting the conditions under which the present invention can be implemented, so that the present invention has no technical essence, and any structural modification, changes of the proportion relation, or adjustment of the size, should fall within the scope of the technical disclosure of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.
Referring to fig. 1 to 3, the embodiment provides an anti-scour device for a bottom pile foundation of ocean engineering, which includes an anchoring frame formed by splicing a plurality of anchoring units 1 circumferentially arranged along a circumferential direction of a bottom pile 3, wherein the anchoring units 1 can be anchored with a foundation of the bottom pile 3, and a columnar space 4 for allowing the bottom pile 3 to pass through is formed in the center of the anchoring frame. The part that anchor unit 1 is close to column space 4 is the interior flange 103 of arcuation, and the part of keeping away from column space 4 is outer flange 101, and the concatenation of interior flange 103 among a plurality of anchor units 1 is tubular structure, and is fixed through connecting plate 102 between interior flange 103 and the outer flange 101, and the connecting plate 102 of adjacent anchor unit 1 can be dismantled fixedly, and the vertical height of interior flange 103 is greater than the vertical height of outer flange 101.
In this embodiment, the connecting plates 102 of the adjacent anchoring units 1 are detachably fixed, which enables the splicing of the anchoring frames, and the prefabricated anchoring units 1 are transported to the seabed and then are integrated into a whole by the detachable fixing of the adjacent connecting plates 102. It is possible to facilitate the laying of the protection means around the bottom piles 3 with respect to the entire prefabrication of the anchoring frame. Compared with the assembly of all parts on the seabed, the assembly time can be reduced, and the assembly efficiency is improved.
A protective net 2 is laid at the upper end of the anchoring unit 1, the periphery of the protective net 2 is fixed through an inner edge plate 103, an outer edge plate 101 and a connecting plate 102, benthic organisms are arranged in the anchoring unit 1, and the benthic organisms are limited between the protective net 2 and the upper surface of the foundation of the bottom pile 3.
In this embodiment, on the one hand, the protection network 2 can block the submarine water flow, and the secondary washing is formed when the water flow is prevented from washing, on the other hand, the sediment contained in the water can be deposited below the protection network 2 to form sinking silt, so that before the benthos grows, the probability that the seedlings of the released benthos are washed away by the water flow is reduced, and meanwhile, the effect of protecting the submarine plane from being washed is achieved.
In the embodiment, the secretion of the marine benthos is combined with the seabed stones to form a protective layer of the seabed plane under the continuous multiplication state, under the resistance action of the marine benthos, the scouring action force of the water flow on the seabed is smaller, the sediment deposition effect of the water flow is better, and the seabed plane can be protected to the maximum extent.
In this embodiment, the protective net 2 of the benthic organisms is made of a high polymer flexible material with scouring resistance and corrosion resistance.
In this embodiment, the outer contour of the anchoring frame is a regular polygon structure. As shown in the figure, 8 anchoring units 1 form a regular octagon, in other embodiments, regular polygons of other shapes may be used.
Specifically, as shown in fig. 2, the outer edge plate 101 is a flat plate, and the inner edge plate 103 is an arc plate.
In order to realize the detachable connection of the adjacent connection plates 102, in this embodiment, connection holes 106 are uniformly arranged at the connection plates 102 along the extending direction thereof, and the connection holes 106 are used for passing through rivets. In other embodiments, the connection hole 106 is detachably connected by a chain or a connection rope, a bolt, or the like.
In this embodiment, the connecting plate 102 is provided with vertical through holes for passing reinforcing ground nails (i.e., the first ground nail 104 and the second ground nail 105 in fig. 3) for anchoring.
In this embodiment, the benthic organisms include barnacles, mussels, or oysters.
In this embodiment, the surfaces of the components in the anchor frame are coated with an anti-corrosion coating.
In this embodiment, the connecting plate is provided with a reinforcing rib at the connecting hole 106 to enhance the structural strength of the anchoring unit 1.
In this embodiment, gravel is further disposed in the anchoring unit 1, and the gravel is confined between the protective net 2 and the upper surface of the foundation of the bottom pile 3.
The working principle is as follows: during construction, a plurality of anchoring units 1 are conveyed to the seabed by a diving operator, and then adjacent anchoring units 1 are fixed to form a whole.
Seedlings of benthos are thrown above the anchoring frame by a construction ship and are positioned in the anchoring frame, and then the seedlings are paved on the upper portion of the anchoring frame by the protective net 2 to form limitation, so that the probability of separation of the benthos from the anchoring frame is reduced.
When the seedlings of the benthos are thrown, the anchoring frame is wanted to throw a large amount of broken stones to improve the attachment rate of the benthos, and the growth of the benthos is observed by diving personnel regularly.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (9)
1. The utility model provides an ocean engineering bottom is scour prevention device for pile foundation which characterized in that includes:
the anchoring frame is formed by splicing a plurality of anchoring units which are circumferentially arranged along the circumferential direction of the bottom piles, the anchoring units can be anchored with the foundations of the bottom piles, and a columnar space for accommodating the bottom piles to penetrate is formed in the center of the anchoring frame;
the part of the anchoring unit, which is close to the columnar space, is an arc-shaped inner edge plate, the part of the anchoring unit, which is far away from the columnar space, is an outer edge plate, the inner edge plates in the anchoring units are spliced to form a cylindrical structure, the inner edge plates and the outer edge plates are fixed through connecting plates, the connecting plates of adjacent anchoring units are detachably fixed, and the vertical height of the inner edge plates is greater than that of the outer edge plates;
the upper end of the anchoring unit is paved with a protective net, the periphery of the protective net is fixed through the inner edge plate, the outer edge plate and the connecting plate, benthos is arranged in the anchoring unit, and the benthos is limited between the protective net and the upper surface of the bottom pile foundation.
2. An anti-scour apparatus for a bottom pile foundation of a marine engineering according to claim 1, wherein the outer contour of the anchoring frame is a regular polygon structure.
3. The anti-scour apparatus for a foundation of a bottom pile of an ocean engineering of claim 1 wherein the outer skirt is a flat plate and the inner skirt is an arc plate.
4. An anti-scour device for a bottom pile foundation of ocean engineering according to claim 1, wherein the connecting plates are uniformly provided with connecting holes along the extending direction thereof, and the connecting holes are used for passing through rivets.
5. An anti-scour device for a bottom pile foundation of ocean engineering according to claim 1, wherein the connecting plate is provided with vertical through holes for passing through reinforcing ground pins for anchoring.
6. An erosion prevention device for a foundation of a bottom pile in ocean engineering according to claim 1, wherein the benthos on the sea bottom is barnacle, mussel or oyster.
7. An anti-scour apparatus for a foundation of a bottom pile of an ocean engineering as claimed in claim 1 wherein the surface of each member of the anchoring frame is coated with an anti-corrosive coating.
8. An erosion prevention device for a bottom pile foundation of ocean engineering according to claim 4, wherein said connecting plate is provided with a reinforcing rib at the connecting hole.
9. An erosion prevention device for a bottom pile foundation of ocean engineering according to claim 1, wherein crushed stones are further arranged in the anchoring unit, and the crushed stones are confined between the protection net and the upper surface of the bottom pile foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220559374.7U CN217027226U (en) | 2022-03-15 | 2022-03-15 | Scour prevention device for bottom pile foundation of ocean engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220559374.7U CN217027226U (en) | 2022-03-15 | 2022-03-15 | Scour prevention device for bottom pile foundation of ocean engineering |
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| CN217027226U true CN217027226U (en) | 2022-07-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN117344801A (en) * | 2023-10-19 | 2024-01-05 | 中国海洋大学 | Flexible scour prevention structure around offshore wind power pile |
-
2022
- 2022-03-15 CN CN202220559374.7U patent/CN217027226U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN117344801A (en) * | 2023-10-19 | 2024-01-05 | 中国海洋大学 | Flexible scour prevention structure around offshore wind power pile |
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