CN119434321A - Offshore wind power pile foundation scouring disaster treatment and protection device and construction method - Google Patents
Offshore wind power pile foundation scouring disaster treatment and protection device and construction method Download PDFInfo
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- CN119434321A CN119434321A CN202510049093.5A CN202510049093A CN119434321A CN 119434321 A CN119434321 A CN 119434321A CN 202510049093 A CN202510049093 A CN 202510049093A CN 119434321 A CN119434321 A CN 119434321A
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Abstract
The invention discloses a device for treating and protecting scouring disasters of a foundation of an offshore wind power pile and a construction method, and relates to the technical field of offshore wind power; in order to solve the problem that secondary scouring is caused by easy loss of rubble in a rubble protection scheme, the technical scheme is provided, wherein the scheme comprises an offshore wind power pile foundation and a scouring protection component sleeved on the offshore wind power pile foundation, a scouring pit is arranged at the periphery of the offshore wind power pile foundation, an underlying soil body filling layer is paved between the scouring pit and the scouring protection component, a foundation protection layer and a reinforcing protection layer are paved at the top of the scouring protection component in sequence, and the scouring protection component is of a grid screen structure. The invention has the advantages of simple structure, convenient construction, low cost, obvious effect and the like, and can be widely applied to the field of scouring disaster treatment and protection of offshore wind power pile foundations. The device and the method also provide powerful technical support and guarantee for the development of the offshore wind power industry.
Description
Technical Field
The invention relates to the technical field of ocean wind power, in particular to a device for treating and protecting scouring disasters of an offshore wind power pile foundation and a construction method.
Background
Offshore wind power has the remarkable characteristics of high wind speed, rich wind energy resources, stable wind direction, low turbulence intensity and the like, and becomes an important direction for the development of clean energy sources worldwide. Compared with land wind power, the offshore wind power has higher power generation efficiency, can effectively avoid occupying land resources, and has relatively small influence on ecological environment. With the continuous breakthrough of the deep open sea development technology, the application field of offshore wind power is further expanded, powerful power is injected for energy structure transformation and green low-carbon economic development, and a wide development prospect is shown.
However, the construction of offshore wind farms can alter the hydrodynamic environment of the ocean around the pile foundation, causing the soft sediments to gradually be washed away by ocean currents, forming scour pits. The flushing pit is affected by multiple factors, and the dynamic process is complex. When ocean currents pass through the pile foundation, the flow velocity of the face is obviously increased due to the blocking effect, so that the shearing force of the bed surface exceeds the shearing strength of the soil body, and initial scouring is generated. Over time, the flushing pit gradually deepens and expands to the periphery, and although the flushing strength gradually weakens, the backfilled sediment is loose and is easy to be subjected to the secondary flushing effect of subsequent ocean currents. The formation of the flushing pit not only weakens the embedding effect of the pile foundation and reduces the bearing capacity, but also can cause wider marine geological disasters and seriously threaten the safe operation of wind power facilities. In order to solve the problems, the current widely-used pile foundation scouring disaster treatment method is to directionally throw stones, and natural stones such as stone blocks or pebbles are put into scouring pits around the pile foundation to form a protective layer structure so as to slow down further scouring.
Patent publication number CN113700047a discloses a scouring protection device for a marine wind power generation single pile foundation, which comprises a backfill rubble layer surrounding the periphery of the single pile foundation, a conical pile layer above the seabed surface and a soil-entering pile layer below the seabed surface, and a buffer layer coated on the surface of the conical pile layer. A cultivation space for cultivating the fish fries is formed between the cultivation net cage and the cultivation ropes which surround the buffer layer.
The patent with the publication number of CN118375188A discloses an anti-scouring device for offshore wind power pile foundations and a construction method thereof, which have better anti-scouring effect on the premise of ensuring lower economic cost and construction difficulty, can realize effective protection of the scouring of the offshore wind power pile foundations, and have better structural stability and are not easy to run off to generate secondary scouring.
The prior art scheme can play a scouring protection role, especially a secondary scouring protection role, to a certain extent, on the ocean wind power generation single pile foundation, but the main point is the scouring protection, the scouring disasters which have occurred cannot be effectively treated, and the manufacturing cost of structural materials is high. The construction process needs a separate underwater installation program, the construction technology is complex, the installation position of the mechanism is difficult to accurately control, the overall size is small, and the protection effect is limited. In addition, the existing device is higher than the seabed by a certain height, has larger structural pores, and is easy to further change the flow field distribution near the foundation, thereby causing potential secondary flushing of the foundation.
Therefore, the research and development of a more efficient, stable and reliable protection scheme has important significance for improving the safety and long-term stability of the offshore wind power pile foundation.
Disclosure of Invention
The invention aims to provide a device for treating and protecting scouring disasters of a foundation of an offshore wind power pile and a construction method, and aims to solve the problem that a flint is easy to run off and secondary scouring is generated in the existing flint protection scheme.
The technical scheme for solving the technical problems is as follows:
The device comprises an offshore wind power pile foundation and a scouring protection component sleeved on the offshore wind power pile foundation, wherein a scouring pit is arranged on the periphery of the offshore wind power pile foundation, a bottom soil body filling layer is paved between the scouring pit and the scouring protection component, a foundation protection layer and a reinforcing protection layer are paved on the top of the scouring protection component in sequence, and the scouring protection component is of a grid screen structure.
Preferably, the flush guard assembly includes a first screen portion and a second screen portion, the first screen portion and the second screen portion being assembled by a plurality of connecting bolts.
Preferably, the flushing protection assembly comprises a plurality of plastic plates which are crossed with each other to form a cross shape, wherein holes are formed between the plastic plates, and sediment pumping holes are formed in the holes at intervals.
Preferably, the middle part of the scouring protection assembly is provided with an annular hoop, and the scouring protection assembly is sleeved on the outer side of the offshore wind power pile foundation through the annular hoop.
Preferably, the flushing protection component is provided with a cross-shaped reinforcing rib.
A construction method of a scouring disaster treatment and protection device for an offshore wind power pile foundation comprises the following steps:
S1, assembling and sleeving a scouring protection device, namely sleeving two parts of a first screen part and a second screen part of a prefabricated scouring protection assembly on the outer side of a offshore wind power pile foundation through annular hoops, connecting the two parts into a complete annular structure by using connecting bolts, and sinking the scouring protection device to the sea bed surface along the pile foundation under the action of gravity and partially embedding the scouring protection device into a sea bed soil body;
S2, pumping and filling the bottom soil body, namely pumping the sand with good grading into an erosion pit between the erosion protection device and the offshore wind power pile foundation through a pumping hole arranged on the erosion protection device until the sand fills the whole erosion pit to form a bottom soil body filling layer;
S3, paving a foundation protection layer, namely uniformly paving a layer of small-particle-size broken stone on the upper surface of the flushing protection device and the upper part of the bottom soil body filling layer to form the foundation protection layer covered by broken stone, wherein the particle size of the broken stone is larger than that of sand of the bottom soil body filling layer;
S4, constructing a reinforcing protective layer, namely, further uniformly paving a layer of large stone on the upper part of the foundation protective layer to form the reinforcing protective layer of the stone counterweight, wherein the particle size of the stone is larger than that of broken stone of the foundation protective layer.
Preferably, the flushing protection device is a three-dimensional plastic grid screen with certain rigidity, and comprises a plastic plate, holes, annular hoops, pumping holes and reinforcing ribs, wherein the reinforcing ribs are connected with the annular hoops and the plastic plate to form a grid-shaped structure.
Preferably, in step S1, the external diameter of the scour protection device is 2-3 times of the diameter of the pile body structure of the offshore wind pile foundation, and the overall thickness of the scour protection device is determined according to the soil texture and ocean current velocity of the seabed at the position where the wind pile foundation is to be installed.
Preferably, in step S2, the grain size of the sand is required to meet the corresponding underwater pumping requirement, so as to ensure that the sand can rapidly fill the pit at the bottom of the pile foundation through the pumping process.
Preferably, in step S3, the foundation protection layer is laid in a ring shape, the radius of which is larger than the external dimension of the scouring protection device, and is a gentle slope stack, and the maximum laying thickness near the wind pile foundation is 0.5-1.5 m.
Preferably, in step S4, the reinforcing protection layer is also a gentle slope pile body, the maximum laying thickness near the wind pile foundation is 0.5-1.5 m, and the included angle between the reinforcing protection layer and the axis of the offshore wind pile foundation is 30-70 °.
The invention has the following beneficial effects:
The flushing protection device is sleeved on the pile foundation, and the device naturally slides downwards under the action of gravity and is tightly attached to the flushing pit, so that direct flushing of water flow on the pile foundation is effectively isolated. The design not only simplifies the installation process, but also ensures the close contact between the protection device and the pile foundation, and improves the protection effect.
The layered reinforcement structure enhances stability, firstly, sand with good grading is filled in the erosion pit in a pumping mode, and uniform support is provided for a pile foundation. Then, the upper surface of the flushing protection device is covered with gravels with larger particle sizes to form a stable basic protection layer. The broken stone layer can resist the scouring of water flow and further improve the stability of the whole structure through the interlocking effect among particles. And finally, throwing the block stone on the basic protective layer to form a weight layer, so that the anti-scouring capability of the structure is further enhanced.
The scouring protection device adopted by the technical scheme is easy to construct, and the stone throwing material is easy to obtain, so that the construction cost and the construction difficulty are greatly reduced. Meanwhile, the design of the layered reinforcing structure also simplifies the construction flow and improves the construction efficiency.
The technical scheme not only effectively reduces the risk of scouring damage of soil around the offshore wind power pile foundation, but also enhances the overall stability and reliability of the structure by forming a layered reinforcing structure with distinct grain size distribution. The structure can resist strong water flow scouring and avoid the problem of secondary scouring caused by material loss.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a device for treating and protecting a scouring disaster of a foundation of an offshore wind pile;
FIG. 2 is a schematic diagram of a scour protection apparatus for a foundation scour disaster management and protection apparatus for offshore wind piles according to the present invention;
fig. 3 and 4 are schematic diagrams of a scour protection device and a wind pile foundation assembly of the scour disaster management and protection device for the offshore wind pile foundation of the present invention;
The reference numerals shown in fig. 1 to 4 are respectively denoted by 1-underfill layer, 2-flush protection, 3-foundation protection, 4-reinforcement protection, 5-wind pile foundation, 6-plastic plate, 7-aperture, 8-annular anchor ear, 9-pumping hole, 10-reinforcing rib, 11-connecting bolt.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1-4, a specific implementation manner of the device for treating and protecting the scouring disaster of the foundation of the offshore wind power pile is as follows:
The invention provides a device for treating and protecting scouring disasters of an offshore wind power pile foundation, and aims to solve the problem of structural instability of the existing offshore wind power pile foundation caused by scouring. The device comprises an offshore wind power pile foundation 5 and a scouring protection assembly 2 sleeved on the offshore wind power pile foundation, and effective treatment and protection of scouring disasters are realized through a designed structural hierarchy and a construction method.
First, the offshore wind pile foundation 5 is installed vertically on the sea floor with the axial direction up and down as a foundation portion of the entire apparatus. On the periphery of the offshore wind pile foundation 5, a flushing pit is often formed due to the flushing action of seawater. In order to treat the erosion phenomenon, a bottom soil filling layer 1 is paved between an erosion pit and an erosion protection component 2. The filling layer is mainly composed of sand with good grading, and is filled into the erosion pit through a specific pumping process until the sand fills the whole erosion pit to form a compact bottom soil filling layer 1. The grain size of the sand is required to meet the corresponding underwater pumping requirement so as to ensure that the sand can rapidly fill the erosion pit at the bottom of the pile foundation through a pumping process.
The scour protection assembly 2 is the core of the device according to the invention, which is designed as a grid screen structure comprising a first screen portion and a second screen portion. The two parts are assembled by means of a plurality of connecting bolts 11, forming a complete ring-shaped structure. The scouring protection component 2 can be made of plastic or other rubber, resin materials and the like, and the materials have good corrosion resistance and certain rigidity and can meet the use requirements in a long-term marine environment.
The particular construction of the flush guard assembly 2 includes a plurality of plastic panels 6 intersecting one another to form a cross, with apertures 7 formed between the plastic panels 6. The existence of the holes 7 ensures that the scouring protection assembly 2 has certain water permeability while maintaining the structural strength, thereby being beneficial to the natural flow and exchange of the seawater. To further enhance the structural strength of the flush guard assembly 2, sets of cross-shaped reinforcing bars 10 are also provided thereon. The annular hoop 8 and the plastic plate 6 are connected through the reinforcing ribs 10 to form a grid structure, so that the overall rigidity and stability of the scouring protection assembly 2 are effectively improved.
The middle part of the scouring protection assembly 2 is provided with an annular hoop 8, which is a key part for connecting the scouring protection assembly 2 with the offshore wind power pile foundation 5. The annular hoop 8 is made of steel, plastic or other rubber, resin materials and the like, is in a circular shape, and is enclosed by two sections of circular arcs to form a containing space. The radial dimension of the accommodating space is matched with the outer diameter of the target offshore wind power pile foundation 5, and when the annular hoop 8 is sleeved and fixed on the outer side of the target offshore wind power pile foundation 5. Through the design of annular staple bolt 8, wash out protection component 2 can closely laminate in the outside of offshore wind power pile foundation 5, forms effectual wash out protection.
In addition, the flushing protection assembly 2 is also provided with sediment pumping holes 9 which are distributed at intervals. The arrangement of these pumping holes 9 allows sand to pass smoothly through the erosion shield assembly 2 into the erosion pit as the fill-in soil is pumped. Meanwhile, the distribution and the number of the pumping holes 9 are well designed to ensure that sand can be uniformly and compactly filled into the whole erosion pit to form a compact bottom soil filling layer 1.
On top of the scour protection assembly 2, a base protection 3 and a reinforcement protection 4 are laid in sequence. The foundation protection layer 3 is a broken stone covering layer which is paved on the upper surfaces of the scouring protection device 2 and the bottom filling layer 1 and is arranged on the outer side of the offshore wind power pile foundation 5 in a surrounding mode. The particle size of the broken stone is larger than that of the sand of the bottom soil filling layer 1, and is usually 5-10 times that of the bottom sand filling layer 1, so that the broken stone layer can form an effective protective barrier. The base protective layer 3 is laid in a ring shape, and the radius of the base protective layer is larger than the outer dimension of the scouring protective device 2, generally 1.1-1.3 times the outer dimension of the scouring protective device 2, so as to form a sufficient protective range. Meanwhile, the foundation protection layer 3 is a gentle slope stacking body, and the maximum laying thickness near the wind power pile foundation 5 is 0.5-1.5 m so as to provide enough protection thickness.
The reinforcing protection layer 4 is a block stone weight layer, is paved on the upper part of the foundation protection layer 3, and is arranged on the outer side of the offshore wind power pile foundation 5 in a surrounding mode. The particle size of the stone block is larger than that of the broken stone of the base protective layer 3 and is 10-20 times of that of the base protective layer 3, so that the stability and weight of the protective layer are further enhanced. The coverage area of the reinforcement shield layer 4 is larger than the outer dimension of the base shield layer 3, which is generally 1.1-1.5 times the outer dimension of the base shield layer, so as to form a larger shield range. Meanwhile, the reinforcing protective layer 4 is also a gentle slope stacking body, the maximum paving thickness of the position close to the wind power pile foundation 5 is 0.5-1.5 m, and the included angle range between the reinforcing protective layer and the axis of the offshore wind power pile foundation 5 is 30-70 degrees, so that a reasonable protective angle is formed.
The invention also provides a construction method of the offshore wind power pile foundation scouring disaster treatment and protection device. The method comprises the following steps:
Firstly, assembling and sleeving the flushing protection device. The first screen grid part and the second screen grid part of the prefabricated scouring protection assembly 2 are sleeved on the outer side of the offshore wind power pile foundation 5 through annular hoops 8. In the sleeving process, it is necessary to ensure that the scour protection can be tightly attached to the outer side of the offshore wind pile foundation 5 and connect the two parts into a complete annular structure through the connecting bolts 11. The external diameter of the flushing protection device is 2-3 times of the structure diameter of the 5 pile bodies of the offshore wind power pile foundation, so that the flushing protection device can completely cover a flushing pit and form effective protection. Meanwhile, the whole thickness of the scouring protection device is required to be determined according to the soil quality of the seabed and the ocean current speed of the position where the wind power pile foundation is required to be installed, and is generally 500-1000 mm, so that the scouring protection device is ensured to have enough strength and stability.
And then pumping and filling the soil body at the bottom layer. Sand is pumped into the erosion pit between the erosion shield 2 and the offshore wind pile foundation 5 through a pumping hole 9 arranged on the erosion shield 2. During the pumping process, it is necessary to ensure that the sand can be uniformly and compactly filled into the entire erosion pit to form a compact bottom soil filling layer 1. The grain size of the sand is required to meet the corresponding underwater pumping requirement so as to ensure that the sand can rapidly fill the erosion pit at the bottom of the pile foundation through a pumping process.
And then laying a basic protection layer. And uniformly paving a layer of small-particle-size broken stone on the upper surface of the flushing protection device 2 and the upper part of the bottom soil body filling layer 1 to form a base protection layer 3 covered by the broken stone. The particle size of the broken stone is larger than that of the sand of the bottom soil filling layer 1 so as to ensure that the broken stone layer can form an effective protective barrier. The base protection layer 3 is laid in a ring shape with a radius larger than the outer dimensions of the scour protection 2 to form a sufficient protection area. Meanwhile, the foundation protection layer 3 is a gentle slope stacking body, and the maximum laying thickness near the wind power pile foundation 5 is 0.5-1.5 m so as to provide enough protection thickness.
And finally, constructing a reinforcing protective layer. A layer of stone blocks is further evenly paved on the upper part of the foundation protective layer 3 to form a reinforcing protective layer 4 of the stone block counterweight. The particle size of the stone block is larger than that of the broken stone of the base protective layer 3 so as to further enhance the stability and weight of the protective layer. The coverage of the reinforcing armor layer 4 must be greater than the outer dimensions of the base armor layer 3 to provide a greater armor range. Meanwhile, the reinforcing protective layer 4 is also a gentle slope stacking body, the maximum paving thickness of the position close to the wind power pile foundation 5 is 0.5-1.5 m, and the included angle range between the reinforcing protective layer and the axis of the offshore wind power pile foundation 5 is 30-70 degrees, so that a reasonable protective angle is formed.
In the construction process, the following points need to be noted:
Firstly, the external diameter and the whole thickness of the scouring protection device need to be carefully designed according to the specific conditions of the offshore wind power pile foundation, the soil quality of the seabed, the ocean current speed and other environmental factors. To ensure that the erosion shield is able to completely cover the erosion pit and form an effective shield while having sufficient strength and stability.
Secondly, when the bottom soil body is pumped and filled, the sand can be ensured to be uniformly and compactly filled into the whole erosion pit. This can be achieved by a rational setting of the position and number of pumping holes 9, as well as controlling the pumping speed and pressure. Meanwhile, the grain size of the sand is strictly controlled to meet the requirement of underwater pumping.
Finally, when the foundation protective layer and the reinforcement protective layer are paved, parameters such as particle sizes of broken stones and block stones, paving thickness and coverage range and the like are required to be ensured to meet design requirements. Can be realized by selecting materials, strictly controlling construction quality and carrying out necessary detection and monitoring.
In addition, the scour prevention device system for the offshore wind power pile foundation is installed by adopting a conventional marine construction process. Can realize the on-shore prefabrication and the offshore hoisting assembly construction of the flushing protection device. Greatly saves the construction time and cost, improves the construction efficiency and has better environmental benefit. Before construction, the peripheral seabed water flow and seabed soil mass of the offshore wind power pile foundation are required to be scanned so as to determine the range of the flushing pit, the material, the size and other parameters of the flushing protection device. The material is then transported to the designated location by the installation vessel and the assembly and installation of the flush guard is performed. And then carrying out the steps of pumping filling of the soil body at the bottom layer, laying of a foundation protection layer, construction of a reinforcement protection layer and the like. And finally, the installation of the scouring protection system is completed, an annular accumulation body with a certain repose angle is formed, and the accumulation body is annularly arranged around the offshore wind power pile foundation.
In summary, the device for treating and protecting the scouring disaster of the offshore wind power pile foundation and the construction method thereof provided by the invention realize effective treatment and protection of the scouring disaster through the carefully designed structural layers and construction steps. The device has the advantages of simple structure, convenient construction, low cost, obvious effect and the like, and can be widely applied to the field of scouring disaster treatment and protection of offshore wind power pile foundations. Meanwhile, the device and the method also provide powerful technical support and guarantee for the development of the offshore wind power industry.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The scouring disaster treatment and protection device for the offshore wind pile foundation is characterized by comprising an offshore wind pile foundation (5) and a scouring protection assembly (2) sleeved on the offshore wind pile foundation, wherein a scouring pit is arranged on the periphery of the offshore wind pile foundation (5), an underlying soil body filling layer (1) is paved between the scouring pit and the scouring protection assembly (2), a foundation protection layer (3) and a reinforcing protection layer (4) are paved at the top of the scouring protection assembly (2) in sequence, the scouring protection assembly (2) is of a grid screen structure, the scouring protection assembly (2) comprises a plurality of plastic plates (6) which are crossed with each other to form a cross, holes (7) are formed between the plastic plates (6), and silt pumping holes (9) are formed in the holes (7) at intervals.
2. Offshore wind pile foundation scour disaster management and protection device according to claim 1, characterized in that the scour protection assembly (2) comprises a first screen section and a second screen section, which are assembled by means of a plurality of connecting bolts (11).
3. The offshore wind pile foundation scouring disaster management and protection device according to claim 1, wherein the middle part of the scouring protection assembly (2) is provided with an annular hoop (8), and the scouring protection assembly (2) is sleeved outside the offshore wind pile foundation (5) through the annular hoop (8).
4. The offshore wind pile foundation scouring disaster management and protection device according to claim 1, wherein the scouring protection assembly (2) is provided with a cross-shaped reinforcing rib (10).
5. A method of constructing a device for managing and protecting a scour disaster of a foundation of an offshore wind pile according to any one of claims 1 to 4, comprising the steps of:
S1, assembling and sleeving a scouring protection device, namely sleeving a first screen part and a second screen part of a prefabricated scouring protection assembly (2) on the outer side of a offshore wind power pile foundation (5) through annular hoops (8), connecting the two parts into a complete annular structure by using connecting bolts (11), and sinking the scouring protection device to the seabed surface along the pile foundation under the action of gravity and partially embedding the scouring protection device into a seabed soil body;
S2, pumping to fill the bottom soil body, namely pumping sand into an erosion pit between the erosion protection device and the offshore wind power pile foundation (5) through a pumping hole (9) arranged on the erosion protection device until the sand fills the whole erosion pit to form a bottom soil body filling layer;
S3, paving a foundation protection layer (3), namely uniformly paving a layer of small-particle-size broken stone on the upper surface of the flushing protection device and the upper part of the bottom soil filling layer to form the foundation protection layer (3) covered by broken stone, wherein the particle size of the broken stone is larger than that of sand of the bottom soil filling layer;
S4, constructing a reinforcing protective layer (4), namely uniformly paving a layer of stone block on the upper part of the foundation protective layer (3) to form the reinforcing protective layer (4) of the stone block counterweight, wherein the particle size of the stone block is larger than that of broken stone of the foundation protective layer (3).
6. The method for controlling and protecting a scour disaster of an offshore wind pile foundation according to claim 5, wherein in the step S1, the outer diameter of the scour protection device is 2-3 times the diameter of the pile body structure of the offshore wind pile foundation (5), and the overall thickness of the scour protection device is determined according to the soil quality of the seabed and the ocean current velocity at the position where the wind pile foundation is to be installed.
7. The method for controlling and protecting a scour disaster of a foundation of a offshore wind farm pile according to claim 5, wherein in step S2, the grain size of the sand is required to meet the corresponding underwater pumping requirement, so as to ensure that the sand can rapidly fill the scour pit at the bottom of the pile foundation through a pumping process.
8. The method for controlling and protecting a scour disaster of a foundation of a offshore wind pile according to claim 5, wherein in the step S3, the foundation protection layer (3) is laid in a ring shape, the radius of which is larger than the outer dimension of the scour protection device, and is a gentle slope stack, and the maximum laying thickness near the foundation of the wind pile is 0.5-1.5 m.
9. The method for controlling and protecting the scouring disaster of the foundation of the offshore wind power pile according to claim 5, wherein in the step S4, the reinforcing protection layer (4) is also a gentle slope stack, the maximum laying thickness near the foundation of the wind power pile is 0.5-1.5 m, and the included angle between the reinforcing protection layer and the axis of the foundation (5) of the offshore wind power pile is 30-70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510049093.5A CN119434321B (en) | 2025-01-13 | Offshore wind power pile foundation scour disaster control and protection device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510049093.5A CN119434321B (en) | 2025-01-13 | Offshore wind power pile foundation scour disaster control and protection device and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119434321A true CN119434321A (en) | 2025-02-14 |
| CN119434321B CN119434321B (en) | 2025-04-18 |
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