Anti-scour protection device for ocean pile foundation

Abstract

The utility model discloses an ocean pile foundation anti-scour protection device, which relates to the technical field of offshore pile foundation engineering, and comprises a pile foundation, an attachment mechanism is arranged on the outer wall of the pile foundation, a protection seat is arranged at the bottom of the pile foundation, a fixed bottom plate is arranged on the outer wall of the protection seat, and a turbulent flow mechanism is arranged at the top of the fixed bottom plate. And a bionic sea grass mechanism is arranged on the outer wall of the fixed bottom plate. Through cooperation of the fixing plate, the first connecting piece, the shrinkage pipe, the supporting rod, the second connecting piece, the spoiler and the grating, when ocean current impacts the pile foundation, the ocean current can be shunted by the grating arranged on the surface of the spoiler, when the ocean current is too large, the spoiler rotates around the fixing plate, the second connecting piece is driven to extrude the supporting rod, and therefore the pile foundation is protected. The supporting rod slides on the inner wall of the contraction pipe to extrude the reset spring, the contraction pipe rotates around the first connecting piece to form a triangle so that ocean current can be divided into two halves, ocean current impact is relieved, damage to the turbulent flow mechanism is relieved, the structure is simple, practicability is high, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of marine pile foundation engineering technology, specifically to a marine pile foundation anti-scour protection device. Background Technology

[0002] my country's offshore wind power industry has developed rapidly, and its installed capacity now ranks among the world's top. Offshore wind turbine foundation structures include monopile foundations, jacket foundations, high-pile cap foundations, and floating foundations. Early offshore wind turbines mostly used monopile foundations. After the monopile foundation is driven into operation, it alters the hydrodynamic conditions of its location, such as waves and currents, disrupting the original sediment balance and causing erosion of the seabed around the monopile foundation. This erosion is mainly caused by horseshoe-shaped eddies formed around the monopile after the current bypasses it, as well as erosion eddies behind the monopile. Since offshore wind turbine monopile foundations are located in a marine environment, the mud surface of the foundation bed around the pile will experience localized erosion under the dynamic forces of wind, waves, and currents, affecting the stability of the monopile foundation structure.

[0003] CN211898581U discloses an anti-scouring protection device for offshore wind turbine pile foundations. The anti-scouring protection device includes a retaining ring and a corrosion-resistant curtain arranged around the outer periphery of the retaining ring. A first ballast and a second ballast are arranged at intervals on the corrosion-resistant curtain. The first ballast is in the same radial direction as the retaining ring, and the second ballast is in the same circumferential direction as the retaining ring. Seaweed-like material is arranged on the corrosion-resistant curtain.

[0004] To address the issue of sediment loss from pile foundations due to ocean current erosion, existing technologies employ a method of arranging corrosion-resistant seaweed-like materials on a corrosion-resistant curtain. However, this still results in situations where ocean currents directly impact the pile foundations, exacerbating fatigue damage to the pile foundation structure. Utility Model Content

[0005] The purpose of this invention is to provide a marine pile foundation anti-scour protection device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A marine pile foundation anti-scour protection device includes a pile foundation, an attachment mechanism provided on the outer wall of the pile foundation, a protective seat provided at the bottom of the pile foundation, a fixed base plate provided on the outer wall of the protective seat, a turbulence-disrupting mechanism provided on the top of the fixed base plate, and a biomimetic seaweed mechanism provided on the outer wall of the fixed base plate.

[0008] The turbulence mechanism includes a fixed plate, the bottom of which is fixedly connected to a fixed base plate, and a connector is fixedly connected to both sides of the fixed plate. A shrink tube is rotatably connected to the middle of the connector.

[0009] A further improvement of this utility model is that a return spring is fixedly connected to the bottom surface of the inner wall of the shrink tube, and a support rod is fixedly connected to the end of the return spring away from the shrink tube.

[0010] A further improvement of this utility model is that: the support rod is slidably connected to the inner wall of the contraction tube, the end of the support rod away from the return spring is rotatably connected to a second connector, and a spoiler is fixedly connected to one side of the second connector.

[0011] A further improvement of this utility model is that one side of the spoiler is rotatably connected to the fixed plate, and the surface of the spoiler is provided with a grille.

[0012] A further improvement of the present invention is that the protective base includes a splicing block, one side of which is movably connected to a fixed base plate, a deposition hole is formed on the surface of the splicing block, an insertion hole is formed on one side of the splicing block, and an insertion block is fixedly connected to the other side of the splicing block.

[0013] A further improvement of the present invention is that the attachment mechanism includes a fixing ring, the inner wall of the fixing ring is fixedly connected to the pile foundation, the bottom of the fixing ring is fixedly connected to an attachment rope, and the attachment rope is movably connected to the outer wall of the pile foundation.

[0014] A further improvement of the present invention is that the biomimetic seaweed mechanism includes a fixed rod, one end of which is fixedly connected to a fixed base plate, connecting rings are fixedly connected to both sides of the fixed rod, and a floating belt is fixedly connected to the top of the fixed rod.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a marine pile foundation anti-scour protection device, which is made of a fixed plate, a first connector, a contraction tube, a support rod, a second connector, a spoiler, and a grid. When the ocean current impacts the pile foundation, it will be diverted by the grid on the surface of the spoiler. When the ocean current is too large, the spoiler will rotate around the fixed plate, causing the second connector to squeeze the support rod. The support rod slides on the inner wall of the contraction tube to squeeze the return spring. The contraction tube rotates around the first connector to form a triangle, which divides the ocean current into two halves, thus reducing the impact of the ocean current and reducing the damage to the spoiler mechanism. The structure is simple, practical, and has a long service life.

[0017] 2. This utility model provides a marine pile foundation anti-scour protection device, which uses a combination of a fixing ring, splicing blocks, sedimentation holes, and insert blocks. The splicing blocks are hollow concrete structures. Adjacent splicing blocks are connected by interlocking between the insert holes and insert blocks. After assembly on shore, the device can be transported to the construction site and installed by hoisting as a whole. After being laid around the perimeter of a single pile foundation, it can adapt to seabed soil deformation. The sedimentation holes and the attachment ropes on the pile foundation surface can facilitate sediment deposition, marine organism attachment and growth, promote marine organism reproduction, and form a marine organism habitat, thereby forming a protective shell for the pile foundation. This device is easy to install, saves materials, and increases volume.

[0018] 3. This utility model provides a marine pile foundation anti-scour protection device, which uses a fixed rod, a connecting ring, and a floating belt in combination. In use, the floating belt is used to imitate seaweed, with one end fixedly connected to the fixed rod. The fixed rod is connected as a whole by the connecting ring, which is convenient to install and not easily moved by ocean currents, allowing the other end to be set freely. In this way, the floating belt will float back and forth under the action of seawater. When the floating belt encounters the seabed current around the pile foundation, it can reduce the current velocity through its own movement, thereby reducing the sediment carrying capacity of the current. After the sediment carrying capacity of the current is reduced, the sediment will accumulate near the connecting ring and the pile foundation, and the sediment accumulation can enhance the stability of the pile foundation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the attachment mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the protective base of this utility model;

[0022] Figure 4 This is a schematic diagram of the turbulence-disrupting mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the biomimetic seaweed mechanism of this utility model.

[0024] In the diagram: 1. Pile foundation; 4. Fixed base plate; 2. Attachment mechanism; 21. Fixing ring; 22. Attachment rope; 3. Protective seat; 31. Splicing block; 32. Sedimentation hole; 33. Insertion hole; 34. Insertion block; 5. Turbulence mechanism; 51. Fixing plate; 52. Connector 1; 53. Contraction tube; 54. Return spring; 55. Support rod; 56. Connector 2; 57. Turbulence plate; 58. Grille; 6. Bionic seaweed mechanism; 61. Fixing rod; 62. Connecting ring; 63. Floating belt. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments:

[0026] Example 1

[0027] like Figure 1-5 As shown, this utility model provides a marine pile foundation anti-scour protection device, including a pile foundation 1, an attachment mechanism 2 provided on the outer wall of the pile foundation 1, a protective seat 3 provided at the bottom of the pile foundation 1, a fixed base plate 4 provided on the outer wall of the protective seat 3, a turbulence-disrupting mechanism 5 provided on the top of the fixed base plate 4, and a biomimetic seaweed mechanism 6 provided on the outer wall of the fixed base plate 4; the turbulence-disrupting mechanism 5 includes a fixed plate 51, the bottom of the fixed plate 51 is fixedly connected to the fixed base plate 4, and connecting parts 52 are fixedly connected to both sides of the fixed plate 51. A contraction tube 53 is rotatably connected to the middle of a 52. A return spring 54 is fixedly connected to the bottom surface of the inner wall of the contraction tube 53. A support rod 55 is fixedly connected to the end of the return spring 54 away from the contraction tube 53. The support rod 55 is slidably connected to the inner wall of the contraction tube 53. A connector 56 is rotatably connected to the end of the support rod 55 away from the return spring 54. A spoiler 57 is fixedly connected to one side of the connector 56. One side of the spoiler 57 is rotatably connected to the fixed plate 51. A grille 58 is provided on the surface of the spoiler 57.

[0028] In this embodiment, when the ocean current impacts the pile foundation, it will be diverted by the grid 58 on the surface of the spoiler 57. When the ocean current is too large, the spoiler 57 will rotate around the fixed plate 51, causing the second connector 56 to squeeze the support rod 55. The support rod 55 slides on the inner wall of the contraction tube 53 to squeeze the reset spring 54. The contraction tube 53 rotates around the first connector 52, forming a triangle that divides the ocean current into two halves, thus reducing the impact of the ocean current and reducing the damage to the spoiler mechanism 5.

[0029] Example 2

[0030] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the protective base 3 includes a splicing block 31, one side of the splicing block 31 is movably connected to the fixed base plate 4, the surface of the splicing block 31 is provided with a deposition hole 32, one side of the splicing block 31 is provided with an insertion hole 33, and the other side of the splicing block 31 is fixedly connected to an insertion block 34. The attachment mechanism 2 includes a fixing ring 21, the inner wall of the fixing ring 21 is fixedly connected to the pile foundation 1, the bottom of the fixing ring 21 is fixedly connected to an attachment rope 22, and the attachment rope 22 is movably connected to the outer wall of the pile foundation 1.

[0031] In this embodiment, the splicing block 31 is a hollow concrete structure. The connection between adjacent splicing blocks 31 is achieved through the interlocking of the insertion holes 33 and the insertion blocks 34. After being assembled on shore, it can be shipped to the construction site and installed by hoisting as a whole. After being laid around the monopile foundation, it can adapt to the deformation of the seabed soil. Through the sedimentation holes 32 and the attachment ropes 22 on the surface of the pile foundation 1, it can facilitate the deposition of sediment, the attachment and growth of marine organisms, promote the reproduction of marine organisms, form a marine organism habitat, and thus form a protective shell for the pile foundation.

[0032] Example 3

[0033] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, the bionic seaweed mechanism 6 includes a fixing rod 61, one end of the fixing rod 61 is fixedly connected to the fixing base plate 4, the two sides of the fixing rod 61 are fixedly connected to the connecting rings 62, and the top of the fixing rod 61 is fixedly connected to the floating belt 63.

[0034] In this embodiment, a floating strip 63 is used to mimic seaweed. One end of the floating strip 63 is fixedly connected to a fixed rod 61, which is connected as a whole by a connecting ring 62. This facilitates installation and prevents the floating strip 63 from being moved by ocean currents, allowing the other end to be freely positioned. Under the influence of seawater, the floating strip 63 will float back and forth. When the floating strip 63 encounters seawater currents around the pile foundation, its own movement reduces the current velocity, thereby reducing the sediment-carrying capacity of the current. This reduced sediment-carrying capacity causes sediment to accumulate near the connecting ring 62 and the pile foundation.

[0035] The working principle of this marine pile foundation erosion protection device will be explained in detail below.

[0036] like Figure 1-5As shown, during use, a floating strip 63 is used to mimic seaweed. One end of the floating strip 63 is fixedly connected to a fixed rod 61, which is connected as a whole by a connecting ring 62. This facilitates installation and prevents the floating strip 63 from being moved by ocean currents, allowing the other end to be freely positioned. Under the influence of seawater, the floating strip 63 will float back and forth. When the floating strip 63 encounters seawater currents around the pile foundation, it can reduce the current velocity through its own movement, thereby reducing the sediment-carrying capacity of the current. This reduced sediment-carrying capacity allows sediment to accumulate near the connecting ring 62 and the pile foundation. The splicing block 31 is a hollow concrete structure. Adjacent splicing blocks 31 are connected through the interlocking of the insertion holes 33 and the insertion blocks 34. After assembly on shore, the splicing block 31 can be shipped to the construction site. After the overall hoisting and installation are completed, it can adapt to the deformation of the seabed soil after being laid around the single pile foundation. Through the sedimentation holes 32 and the attachment ropes 22 on the surface of the pile foundation 1, it can facilitate the deposition of sediment, the attachment and growth of marine organisms, promote the reproduction of marine organisms, and form a marine organism habitat, thus forming a protective shell for the pile foundation. When the ocean current impacts the pile foundation, it will be diverted by the grid 58 on the surface of the spoiler 57. When the ocean current is too large, the spoiler 57 will rotate around the fixed plate 51, driving the second connector 56 to squeeze the support rod 55. Through the support rod 55 sliding on the inner wall of the contraction tube 53, the return spring 54 is squeezed. The contraction tube 53 rotates around the first connector 52, forming a triangle that divides the ocean current into two halves, reducing the impact of the ocean current and reducing the damage to the spoiler mechanism 5.

[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A marine pile foundation scour protection device, comprising a pile foundation (1), characterized in that: The outer wall of the pile foundation (1) is provided with an attachment mechanism (2), the bottom of the pile foundation (1) is provided with a protective seat (3), the outer wall of the protective seat (3) is provided with a fixed base plate (4), the top of the fixed base plate (4) is provided with a turbulence mechanism (5), and the outer wall of the fixed base plate (4) is provided with a biomimetic seaweed mechanism (6). The turbulence mechanism (5) includes a fixed plate (51), the bottom of which is fixedly connected to a fixed base plate (4), and connecting parts (52) are fixedly connected to both sides of the fixed plate (51). A shrink tube (53) is rotatably connected to the middle of the connecting parts (52).

2. The marine pile foundation scour protection device according to claim 1, characterized in that: A return spring (54) is fixedly connected to the bottom surface of the inner wall of the shrink tube (53), and a support rod (55) is fixedly connected to the end of the return spring (54) away from the shrink tube (53).

3. The marine pile foundation scour protection device according to claim 2, characterized in that: The support rod (55) is slidably connected to the inner wall of the contraction tube (53). The end of the support rod (55) away from the return spring (54) is rotatably connected to the second connector (56). A spoiler (57) is fixedly connected to one side of the second connector (56).

4. The marine pile foundation scour protection device according to claim 3, characterized in that: One side of the spoiler (57) is rotatably connected to the fixed plate (51), and the surface of the spoiler (57) is provided with a grille (58).

5. The marine pile foundation scour protection device according to claim 1, characterized in that: The protective base (3) includes a splicing block (31), one side of which is movably connected to the fixed base plate (4), a deposition hole (32) is provided on the surface of the splicing block (31), an insertion hole (33) is provided on one side of the splicing block (31), and an insertion block (34) is fixedly connected to the other side of the splicing block (31).

6. The marine pile foundation scour protection device according to claim 1, characterized in that: The attachment mechanism (2) includes a fixing ring (21), the inner wall of which is fixedly connected to the pile foundation (1), and an attachment rope (22) is fixedly connected to the bottom of the fixing ring (21), and the attachment rope (22) is movably connected to the outer wall of the pile foundation (1).

7. The marine pile foundation scour protection device according to claim 1, characterized in that: The biomimetic seaweed mechanism (6) includes a fixing rod (61), one end of which is fixedly connected to a fixing base plate (4), connecting rings (62) are fixedly connected to both sides of the fixing rod (61), and a floating belt (63) is fixedly connected to the top of the fixing rod (61).

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