Scouring protection structure

Abstract

The utility model relates to the technical field of offshore wind power generation, and provides a scour protection structure. The scouring protection structure comprises a base, a pile leg and a protection assembly, the base is arranged on the pile leg, and the base is of an annular structure so as to be arranged on a pile foundation in a sleeving mode; the protection assembly is arranged on the periphery of the base in a surrounding mode and rotationally connected with the base, a flexible layer is arranged on the periphery of the protection assembly, a cavity is formed between the flexible layer and the protection assembly, fluid is poured into the cavity, and the fluid can move in the cavity so that the flexible layer can deform and simulate the streaming form in a self-adaptive mode. According to the scouring protection structure provided by the invention, when the flow speeds or directions of water flow passing through the protection assembly are different, the flexible layer can adaptively deform and rotate, and the water flow can pass through the protection assembly along the outer edge of the flexible layer in a streaming form, so that the impact resistance of the water flow to the protection assembly can be reduced; the protection capability on the pile foundation is improved, and the service life is prolonged.

Description

Technical Field

[0001] The present disclosure relates to the technical field of offshore wind power generation, and in particular to a scour protection structure. Background Art

[0002] During the construction of offshore wind power, pile foundations must be protected from scour. Existing offshore wind power foundation scour protection is mostly hard protection measures, such as riprap, geobags (geotextile woven bags, geomembrane bags, etc. filled with concrete blocks, stones, sand, soil), underwater concrete bottom protection, precast concrete blocks, steel cages or geogrid cages filled with stones or silt solidification and other technologies.

[0003] When hard protection technology is actually applied, after long-term use, the hard protection is easily affected by seawater scouring, and may even cause damage to the wind power foundation, resulting in high subsequent maintenance costs. However, bionic scouring protection technology can simulate the form of bypass flow, thereby reducing the impact resistance to the pile foundation. However, the actual size and flow direction of water flow are relatively complex, and it is not simply flowing in a fixed size and in a fixed direction. Therefore, it is difficult to promote and apply it in the field of offshore wind power generation. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a scour protection structure.

[0005] The present disclosure provides a scour protection structure, comprising a base, pile legs and a protection assembly, wherein the base is arranged on the pile legs and is an annular structure so as to be sleeved on a pile foundation;

[0006] The protective component is arranged around the periphery of the base and is rotatably connected to the base. A flexible layer is arranged around the periphery of the protective component, and a cavity is formed between the flexible layer and the protective component. The cavity is filled with fluid, and the fluid can move in the cavity so that the flexible layer can deform and adaptively simulate the shape of the flow.

[0007] Optionally, the protective component includes a shell having a mounting hole, the base is inserted into the mounting hole, the flexible layer is arranged around the periphery of the shell, and the center of the mounting hole is staggered with the center of the shell.

[0008] Optionally, a rotating ring is provided on the shell, the rotating ring is rotatably connected to the base, the rotating ring is an annular structure, and the inner hole of the rotating ring is formed as the mounting hole;

[0009] A bracket is arranged on a side of the rotating ring away from the base. The bracket is extended along the radial direction of the rotating ring and in a direction away from the rotating ring. The shell is arranged around the outer periphery of the rotating ring and the bracket.

[0010] Optionally, the protective component also includes a plurality of telescopic parts, wherein two ends of some of the telescopic parts are respectively connected to the shell and the rotating ring, and two ends of another portion of the telescopic parts are respectively connected to the shell and the bracket, so that the shell can move relative to the rotating ring and the bracket.

[0011] Optionally, the telescopic member includes a first sleeve, a second sleeve and an elastic member, one of the first sleeve and the second sleeve is sleeved on the periphery of the other, and the first sleeve and the second sleeve are jointly sleeved on the periphery of the elastic member;

[0012] The first sleeve is connected to the shell, the second sleeve is connected to the rotating ring or the bracket, one end of the elastic member is connected to the shell, and the other end is connected to the rotating ring or the bracket.

[0013] Optionally, the inner diameter of one of the first sleeve and the second sleeve is the same as the outer diameter of the other.

[0014] Optionally, a first slide groove is provided on one side of the rotating ring close to the base and extends in a circumferential direction, and a second slide groove is provided on one side of the base close to the rotating ring and extends in a circumferential direction, and the first slide groove and the second slide groove are opposite to each other to form an annular groove structure, and a rolling element is provided in the annular groove structure.

[0015] Optionally, one end of the shell corresponding to the rotating ring is formed as a large end, one end of the shell corresponding to the bracket is formed as a small end, and the surfaces on both sides of the small end along the extension direction of the bracket are formed as arc-shaped surfaces recessed toward the bracket.

[0016] Optionally, a fluid inlet is provided at a position of the flexible layer corresponding to the large end, a fluid outlet is provided at a position of the flexible layer corresponding to the small end, and both the fluid inlet and the fluid outlet are provided with a one-way valve.

[0017] Optionally, a rigid plate is provided at a position of the flexible layer corresponding to the large end, and the fluid inlet is provided on the rigid plate, and there are multiple fluid inlets.

[0018] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0019] The scour protection structure provided by the present disclosure includes a base, pile legs and a protection component. The base is arranged on the pile legs, and the base is an annular structure, which is sleeved on the pile foundation. The pile legs can be inserted into the riverbed or the seabed. The base is arranged on the pile legs. When the base is sleeved on the pile foundation, the pile foundation can be protected by the base. The protection component is arranged around the periphery of the base and is rotatably connected with the base. Under the force of the water flow, the protection component can rotate relative to the base and the pile foundation to adapt to the water flow from different directions in the water area. A flexible layer is arranged on the periphery of the protection component, and a cavity is formed between the flexible layer and the protection component. The fluid is injected and can move in the cavity so that the flexible layer can deform and adaptively simulate the shape of the flow. The flexible layer can deform under the force of the water flow. The fluid in the cavity can move synchronously and be supported inside the flexible layer. The final shape of the flexible layer can simulate the shape of the flow. When the flow rate or direction of the water passing through the protective component is different, the flexible layer can adaptively deform and rotate. The water flow can pass through the protective component along the outer edge of the flexible layer in the shape of the flow, thereby reducing the impact resistance of the water flow on the protective component, improving the protection capability of the pile foundation and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A top view of a scour protection structure according to an embodiment of the present utility model;

[0023] Figure 2 It is a front view of a scour protection structure according to an embodiment of the utility model;

[0024] Figure 3 This is one of the deformation schematic diagrams of the flexible layer of one embodiment of the utility model;

[0025] Figure 4 This is the second deformation diagram of the flexible layer of one embodiment of the utility model.

[0026] In the figure: 1, base; 2, pile leg; 3, flexible layer; 31, cavity; 32, fluid inlet; 33, fluid outlet; 4, shell; 41, large end; 42, small end; 5, rotating ring; 6, bracket; 7, telescopic member; 71, first sleeve; 72, second sleeve; 73, elastic member; 8, rolling member; 9, rigid plate. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0029] The scour protection structure is described in detail below through specific embodiments:

[0030] Reference Figures 1 to 4 As shown, some embodiments of the utility model provide a scour protection structure, including a base 1, pile legs 2 and a protection assembly, wherein the base 1 is arranged on the pile legs 2, and the base 1 is an annular structure to be sleeved on a pile foundation, specifically, the pile legs 2 can be inserted into a riverbed or a seabed, and the base 1 is arranged on the pile legs 2, and when the base 1 is sleeved on the pile foundation, the pile foundation can be protected by the base 1.

[0031] In specific implementation, the protection component is arranged around the periphery of the base 1 and is rotatably connected to the base 1. Under the action of the water flow, the protection component can rotate relative to the base 1 and the pile foundation to adapt to the water flow from different directions in the water area. A flexible layer 3 is arranged on the periphery of the protection component, and a cavity 31 is formed between the flexible layer 3 and the protection component. The cavity 31 is filled with fluid, and the fluid can move in the cavity 31 so that the flexible layer 3 can deform and adaptively simulate the shape of the flow.

[0032] That is to say, the flexible layer 3 can be deformed under the action of the water flow, the fluid in the cavity 31 can move synchronously and be supported inside the flexible layer 3, and the final shape of the flexible layer 3 can simulate the form of the flow. When the flow rate or direction of the water flow passing through the protective component is different, the flexible layer 3 can adaptively deform and rotate, and the water flow can pass through the protective component along the outer edge of the flexible layer 3 in the form of the flow, thereby reducing the impact resistance of the water flow on the protective component, improving the protection capability of the pile foundation, and extending the service life.

[0033] It should be noted that the scour protection structure disclosed in the present invention can be directly arranged as a whole around the pile foundation to achieve integrated installation and disassembly, which is convenient for construction, can shorten the construction period and construction cost, and can be reused.

[0034] Specifically, the protective component can be along Figure 1 The pile foundation is rotated in the direction indicated by the middle arrow to adjust the posture facing the impact of water flow. The pile leg 2 is a cylindrical hollow pipe pile that can be inserted into the riverbed or seabed.

[0035] When the water flow rate is low, refer to Figure 3 As shown, the flexible layer 3 undergoes a small deformation or even no deformation, which can alleviate the water flow impact resistance; when the water flow velocity is large, refer to Figure 4 As shown, the flexible layer 3 can undergo a large deformation, and the fluid in the cavity 31 can move to be supported in the deformed flexible layer 3. The final shape of the flexible layer 3 can simulate the flow pattern at the current flow rate, so that the water flow can pass through the protective component along the outer edge of the flexible layer 3 in the flow pattern, which can further alleviate the water flow impact resistance.

[0036] In some embodiments, the protective component includes a shell 4, a mounting hole is provided on the shell 4, the base 1 is inserted into the mounting hole, the flexible layer 3 is arranged around the periphery of the shell 4, and the center of the mounting hole is staggered with the center of the shell 4. In other words, the shell 4 rotates eccentrically, that is, the rotation center of the shell 4 is at different distances from the edges of both sides of the shell 4. With such an arrangement, under the action of the water flow, the side with a longer distance can be pushed to rotate along the direction of the water flow, so that the shell 4 can always face the incoming direction of the water flow with the side with a shorter distance, and both sides of the shell 4 can evenly withstand the impact resistance from the water flow. Specifically, the shell 4 can be a thin shell structure with a certain plasticity to alleviate part of the impact resistance, and the flexible layer 3 can be a rubber layer.

[0037] When implementing it, refer to Figure 1 As shown, a rotating ring 5 is provided on the housing 4, and the rotating ring 5 is rotatably connected to the base 1. The rotating ring 5 is an annular structure, and the inner hole of the rotating ring 5 is formed as a mounting hole. In other words, the rotating ring 5 is sleeved on the base 1, and the housing 4 can be driven to rotate relative to the base 1 through the rotating ring 5, thereby being able to adapt to water flows from different directions to enhance the protection capability of the pile foundation.

[0038] Further, a bracket 6 is provided on one side of the rotating ring 5 away from the base 1, and the bracket 6 is extended along the radial direction of the rotating ring 5 and in a direction away from the rotating ring 5, that is, the bracket 6 can rotate with the center of the rotating ring 5 as the center line, that is, the bracket 6 can realize eccentric rotation, and the housing 4 is arranged around the outer periphery of the rotating ring 5 and the bracket 6. Specifically, the bracket 6 can be connected to the rotating ring 5 by screwing or welding.

[0039] It can be understood that the bracket 6 rotates eccentrically, and the shell 4 arranged around the rotating ring 5 and the bracket 6 can also realize eccentric rotation, and the end of the shell 4 corresponding to the rotating ring 5 is at a shorter distance from the rotation center, and the end of the shell 4 corresponding to the bracket 6 is at a longer distance from the rotation center. Under the action of water flow, the end of the shell 4 corresponding to the bracket 6 can be pushed to rotate along the direction of the water flow, so that the shell 4 can always face the incoming direction of the water flow with the end corresponding to the rotating ring 5, thereby allowing the shell 4 to adapt to water flows from different directions.

[0040] In some embodiments, continue to refer to Figure 1 As shown, the protective assembly also includes a plurality of telescopic members 7, the two ends of some telescopic members 7 are respectively connected to the housing 4 and the rotating ring 5, and the two ends of another part of the telescopic members 7 are respectively connected to the housing 4 and the bracket 6, so that the housing 4 can move relative to the rotating ring 5 and the bracket 6. It can be understood that when there is a water flow impact, the housing 4 can compress or stretch the telescopic member 7 to move relative to the rotating member and the bracket 6, and further, it can also move relative to the pile foundation, and the telescopic member 7 can absorb part of the energy generated by the water flow movement, thereby buffering the impact resistance from the water flow and improving the protection capability of the pile foundation.

[0041] In specific implementation, the telescopic member 7 includes a first sleeve 71, a second sleeve 72 and an elastic member 73, one of the first sleeve 71 and the second sleeve 72 is sleeved on the periphery of the other, and the first sleeve 71 and the second sleeve 72 are sleeved together on the periphery of the elastic member 73, the first sleeve 71 is connected to the housing 4, the second sleeve 72 is connected to the rotating ring 5 or the bracket 6, one end of the elastic member 73 is connected to the housing 4, and the other end is connected to the rotating ring 5 or the bracket 6. In other words, one of the first sleeve 71 and the second sleeve 72 can slide relative to the other, thereby driving the housing 4 to move toward or away from the rotating ring 5 and the bracket 6 to absorb the impact energy of the water flow.

[0042] Furthermore, the elastic member 73 is elastically supported between the rotating ring 5 and the shell 4, and between the bracket 6 and the shell 4. When the shell 4 moves toward or away from the rotating ring 5 and the bracket 6, the elastic member 73 undergoes elastic deformation to absorb the impact energy of the water flow. At the same time, the elastic member 73 can also restore the deformation so that the shell 4 can return to its initial position, thereby allowing the shell 4 to be evenly distributed on the periphery of the pile foundation to protect the pile foundation.

[0043] Specifically, the inner diameter of one of the first sleeve 71 and the second sleeve 72 is the same as the outer diameter of the other. That is, the elastic member 73 is supported inside the first sleeve 71 and the second sleeve 72, and when the first sleeve 71 and the second sleeve 72 are slidably matched, a sealing structure can be formed between the first sleeve 71 and the second sleeve 72 to prevent water from entering the first sleeve 71 and the second sleeve 72, thereby ensuring the service life of the elastic member 73.

[0044] In some embodiments, a first slide groove is provided on one side of the rotating ring 5 close to the base 1 and extends in a circumferential direction, and a second slide groove is provided on one side of the base 1 close to the rotating ring 5 and extends in a circumferential direction, and the first slide groove and the second slide groove are opposite to each other to form an annular groove structure, and a rolling member 8 is provided in the annular groove structure.

[0045] It can be understood that the depth of the second slide groove is less than the height of the rolling element 8, so that the rolling element 8 can exceed the notch of the second slide groove and enter the first slide groove, thereby enabling the rotating ring 5 to rotate relative to the base 1. In specific implementation, the rotating ring 5 can be embedded in the second slide groove, so that the rotating ring 5 can be set on the outer side wall of the base 1 at a fixed height.

[0046] Specifically, the rolling element 8 can be a ball or a cylindrical roller. Of course, the ring groove structure can also be a sliding element such as a slider, which is not limited in the present disclosure, as long as the rotating ring 5 can rotate relative to the base 1 and drive the shell 4 and the flexible layer 3 to rotate to adapt to water flows from different directions. Figure 2 As shown, the annular groove structure may be single or multiple, and the present disclosure does not limit this. It may be specifically configured according to actual needs. Multiple annular groove structures may be distributed at intervals along the height direction of the base 1.

[0047] In some embodiments, reference Figure 1 As shown, one end of the housing 4 corresponding to the rotating ring 5 is formed as a large end 41, and one end of the housing 4 corresponding to the bracket 6 is formed as a small end 42, and the surfaces of the small end 42 on both sides along the extension direction of the bracket 6 are formed as arc surfaces concave toward the bracket 6. That is to say, under the action of water flow, the small end 42 of the housing 4 can be pushed to rotate along the direction of the water flow, so that the housing 4 can always face the incoming direction of the water flow with the large end 41. At the same time, the fluid in the cavity 31 moves from the large end 41 to the small end 42 and gathers at the arc surface, so that the flexible layer 3 is deformed and simulates the shape of the flow around. The fluid can provide a strong supporting force to resist the impact resistance of the external water flow and improve the protection ability.

[0048] In specific implementation, a fluid inlet 32 ​​is provided at a position corresponding to the large end 41 of the flexible layer 3, and a fluid outlet 33 is provided at a position corresponding to the small end 42 of the flexible layer 3. Both the fluid inlet 32 ​​and the fluid outlet 33 are provided with a one-way valve, and the water flow can only enter the cavity 31 from the large end 41 through the fluid inlet 32, and be discharged from the small end 42 through the fluid outlet 33. It can be understood that when the fluid inlet 32 ​​is opened, the flow rate of the water flow is different, and the amount of water that can enter the cavity 31 after the water flow passes through is different. By adjusting the amount of water in the cavity 31, the flexible layer 3 can adaptively simulate the form of the flow to adapt to the current wave flow size.

[0049] Specifically, a rigid plate 9 is provided at the position corresponding to the large end 41 of the flexible layer 3, and the fluid inlet 32 ​​is provided on the rigid plate 9, which can support the fluid inlet 32 ​​so that the fluid inlet 32 ​​can face the incoming direction of the water flow, thereby ensuring the water inlet speed. There are multiple fluid inlets 32, and the water in the water area can be poured into the cavity 31 at the fastest speed.

[0050] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0051] The above are only specific embodiments of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A scour protection structure, characterized in that: It comprises a base (1), pile legs (2) and a protection assembly, wherein the base (1) is arranged on the pile legs (2), and the base (1) is an annular structure so as to be sleeved on the pile foundation; The protective component is arranged around the periphery of the base (1) and is rotatably connected to the base (1); a flexible layer (3) is arranged around the periphery of the protective component, and a cavity (31) is formed between the flexible layer (3) and the protective component; the cavity (31) is filled with a fluid, and the fluid can move in the cavity (31) so that the flexible layer (3) can deform and adaptively simulate the shape of the flow.

2. The scour protection structure according to claim 1, characterized in that: The protective component comprises a shell (4), the shell (4) is provided with a mounting hole, the base (1) is inserted into the mounting hole, the flexible layer (3) is arranged around the outer periphery of the shell (4), and the center of the mounting hole is staggered with the center of the shell (4).

3. The scour protection structure according to claim 2, characterized in that: The housing (4) is provided with a rotating ring (5), the rotating ring (5) is rotatably connected to the base (1), the rotating ring (5) is an annular structure, and the inner hole of the rotating ring (5) is formed as the mounting hole; A bracket (6) is provided on a side of the rotating ring (5) away from the base (1); the bracket (6) is extended along the radial direction of the rotating ring (5) and in a direction away from the rotating ring (5); and the shell (4) is arranged around the outer periphery of the rotating ring (5) and the bracket (6).

4. The scour protection structure according to claim 3, characterized in that: The protective component further comprises a plurality of telescopic parts (7), the two ends of some of the telescopic parts (7) being respectively connected to the shell (4) and the rotating ring (5), and the two ends of another portion of the telescopic parts (7) being respectively connected to the shell (4) and the bracket (6), so that the shell (4) can move relative to the rotating ring (5) and the bracket (6).

5. The scour protection structure according to claim 4, characterized in that: The telescopic member (7) comprises a first sleeve (71), a second sleeve (72) and an elastic member (73), wherein one of the first sleeve (71) and the second sleeve (72) is sleeved on the periphery of the other, and the first sleeve (71) and the second sleeve (72) are sleeved together on the periphery of the elastic member (73); The first sleeve (71) is connected to the shell (4), the second sleeve (72) is connected to the rotating ring (5) or the bracket (6), one end of the elastic member (73) is connected to the shell (4), and the other end is connected to the rotating ring (5) or the bracket (6).

6. The scour protection structure according to claim 5, characterized in that: The inner diameter of one of the first sleeve (71) and the second sleeve (72) is the same as the outer diameter of the other.

7. The scour protection structure according to claim 3, characterized in that: A first slide groove is provided on one side of the rotating ring (5) close to the base (1) and extends in a circumferential direction, and a second slide groove is provided on one side of the rotating ring (5) close to the base (1) and extends in a circumferential direction, wherein the first slide groove and the second slide groove are opposed to each other to form a ring groove structure, and a rolling element (8) is provided in the ring groove structure.

8. The scour protection structure according to claim 3, characterized in that: One end of the shell (4) corresponding to the rotating ring (5) is formed as a large end (41), and one end of the shell (4) corresponding to the bracket (6) is formed as a small end (42), and surfaces on both sides of the small end (42) along the extension direction of the bracket (6) are formed as arc-shaped surfaces recessed toward the bracket (6).

9. The scour protection structure according to claim 8, characterized in that: A fluid inlet (32) is provided at a position of the flexible layer (3) corresponding to the large end (41), and a fluid outlet (33) is provided at a position of the flexible layer (3) corresponding to the small end (42), and both the fluid inlet (32) and the fluid outlet (33) are provided with a one-way valve.

10. The scour protection structure according to claim 9, characterized in that: A rigid plate (9) is arranged at a position of the flexible layer (3) corresponding to the large end (41), and the fluid inlet (32) is arranged on the rigid plate (9), and there are multiple fluid inlets (32).

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