CN113789807A - Offshore wind power foundation with turbulence holes - Google Patents
Offshore wind power foundation with turbulence holes Download PDFInfo
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- CN113789807A CN113789807A CN202111096625.9A CN202111096625A CN113789807A CN 113789807 A CN113789807 A CN 113789807A CN 202111096625 A CN202111096625 A CN 202111096625A CN 113789807 A CN113789807 A CN 113789807A
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000013535 sea water Substances 0.000 description 12
- 238000009991 scouring Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000011324 bead Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 5
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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- General Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
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- Wind Motors (AREA)
Abstract
The invention discloses an offshore wind power foundation with a flow disturbing hole, which comprises a pile foundation and the flow disturbing hole, the pile foundation comprising a first portion and a second portion interconnected in the length direction thereof, the second portion being embedded in the seabed, the seabed is provided with a seabed surface, the first part is positioned above the seabed surface, the turbulence holes are at least arranged on the first part, the baffle hole penetrates through the peripheral wall of the first part along a first direction, the first direction is orthogonal to the length direction of the pile foundation, the turbulent flow holes comprise a plurality of turbulent flow holes which are arranged at intervals in the length direction of the pile foundation and/or in the circumferential direction around the pile foundation, the outer diameter of the first portion is D, and the interval between the turbulence holes is larger than or equal to 0.25D and smaller than or equal to 1D. The offshore wind power foundation with the turbulence holes has the characteristics of simple structure, convenience in installation, environmental friendliness, energy conservation and wide application range.
Description
Technical Field
The invention relates to the field of offshore wind power, in particular to an offshore wind power foundation with a spoiler hole.
Background
Wind energy is increasingly regarded by human beings as a clean and harmless renewable energy source. Compared with land wind energy, offshore wind energy resources not only have higher wind speed, but also are far away from a coastline, are not influenced by a noise limit value, and allow the unit to be manufactured in a larger scale.
The offshore wind power foundation is the key point for supporting the whole offshore wind power machine, the cost accounts for 20-25% of the investment of the whole offshore wind power, and most accidents of offshore wind power generators are caused by unstable pile foundation. Due to the action of waves and tide, silt around the offshore wind power pile foundation can be flushed and form a flushing pit, and the flushing pit can influence the stability of the pile foundation. In addition, the water flow mixed with silt near the surface of the seabed continuously washes the pile foundation, corrodes and destroys the surface of the pile foundation, and can cause the collapse of the offshore wind turbine unit in serious cases. The anti-scouring device of the currently adopted offshore wind power pile foundation is mainly a riprap protection method. However, the integrity of the riprap protection is poor, and the maintenance cost and the workload in the application process are large.
Disclosure of Invention
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
in the practical application process, because the effect of wave and morning and evening tides, the sea water is direct to marine wind power pile foundation basis erodees, the impact force direct action of sea water is on the surface of marine wind power pile foundation basis, it digs vortex structure to present decurrent book, vortex structure rolls up the deposit on the seabed, and further keep away from the place around the pile foundation with its area, it erodes the hole to have formed, the formation that erodes the hole makes the pile foundation degree of depth shallow, influence the stability of pile foundation basis, on the other hand, the sea water easily forms the corrosion pit in pile foundation surface, the corrosion pit is along with the continuous grow of sea water scour and then enlarge the influence to pile foundation surface, the destructive power strengthens gradually, can cause the collapse of marine wind turbine set when serious.
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention provides an offshore wind power foundation with a spoiler hole and good anti-scouring performance.
The offshore wind power foundation with the turbulence holes comprises a pile foundation and the turbulence holes, wherein the pile foundation comprises a first part and a second part which are connected with each other in the length direction of the pile foundation, the second part is buried in a seabed, the seabed is provided with a seabed surface, the first part is positioned above the seabed surface, the turbulence holes are at least arranged on the first part, the turbulence holes penetrate through the peripheral wall of the first part along a first direction, the first direction is orthogonal to the length direction of the pile foundation, the turbulence holes comprise a plurality of turbulence holes, the plurality of turbulence holes are arranged at intervals in the length direction of the pile foundation and/or in the circumferential direction surrounding the pile foundation, the outer diameter of the first part is D, and the interval between the turbulence holes is more than or equal to 0.25D and less than or equal to 1.0D.
According to the offshore wind power foundation with the turbulence holes, the turbulence holes are formed in the pile foundation, so that a rapid flow or a main flow in seawater is converted into a uniform slow flow, the impact of the seawater on the surface of the pile foundation is reduced, the formation of a horseshoe vortex is inhibited, and the offshore wind power foundation with the turbulence holes has good erosion resistance.
In some embodiments, two adjacent spoiler holes are staggered in the length direction of the pile foundation, the distance between the two adjacent spoiler holes in the circumferential direction around the pile foundation is 0.25D to 1.0D, and/or the distance between the two adjacent spoiler holes in the circumferential direction around the pile foundation is staggered, and the distance between the two adjacent spoiler holes in the length direction of the pile foundation is 0.2D to 0.8D.
In some embodiments, the plurality of baffle holes are divided into a plurality of rows, each baffle hole comprises a plurality of baffle holes arranged along the circumferential direction at equal intervals, the baffle holes are arranged along the length direction, and two adjacent baffle holes are staggered in the length direction.
In some embodiments, the density of the baffle holes increases toward the sea floor.
In some embodiments, the outer circumferential surface of the first portion includes a front surface facing the direction of tidal current, a back surface opposite to the front surface, and two side surfaces, and the density of the turbulence holes distributed on the front surface and the back surface is greater than the density of the turbulence holes distributed on the two side surfaces.
In some embodiments, the turbulator holes include first and second radially opposed turbulator holes in the first portion.
In some embodiments, the baffle plate is disposed on the first portion.
In some embodiments, a bead ring is provided on an outer circumferential surface of the first portion at a corresponding position of the flow-disturbing hole, the bead ring being provided around the flow-disturbing hole, the bead ring protruding from the outer circumferential surface of the first portion in the first direction.
In some embodiments, the dimension of the bead ring in the first direction is the height of the bead ring, which is 100mm to 500 mm.
In some embodiments, the orificing holes have a minor axis and a major axis, the minor axis of the orificing holes having an aperture of 300mm to 1000mm, and a ratio of the major axis to the minor axis of 1.5 to 2.5.
Drawings
Fig. 1 is a schematic structural diagram of an offshore wind power foundation with a spoiler flow aperture according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a structure of a baffle hole in some embodiments according to the invention.
FIG. 3 is a schematic diagram of a structure of a baffle hole in other embodiments according to embodiments of the present invention. Reference numerals:
pile foundation 1, first part 11, second part 12, vortex hole 2, first vortex hole 21, second vortex hole 22, reinforcing bar ring 3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An offshore wind farm with a spoiler hole according to an embodiment of the present invention is described below with reference to fig. 1.
The offshore wind power foundation with the spoiler holes according to the invention comprises a pile foundation 1 and a spoiler hole 2.
The pile foundation 1 comprises a first part 11 and a second part 12 connected to each other in its length direction, the second part 12 being buried in the seabed, the seabed having a seabed surface, the first part 11 being located above the seabed surface.
As shown in fig. 1, the pile foundation 1 is divided into a first part 11 and a second part 12 in the up-down direction, the pile foundation 1 is buried downward in the seabed, the first part 11 is located above the seabed surface, and the second part 12 is buried in the seabed under the seabed surface.
The turbulence holes 2 are at least arranged on the first portion 11, the turbulence holes 2 penetrate through the peripheral wall of the first portion 11 along the first direction, the first direction is orthogonal to the length direction of the pile foundation 1, the turbulence holes 2 comprise a plurality of turbulence holes, the turbulence holes 2 are arranged in the length direction of the pile foundation 1 and/or in the circumferential direction around the pile foundation 1 at intervals, the outer diameter of the first portion 11 is D, and the interval between the turbulence holes 2 is larger than or equal to 0.25D and smaller than or equal to 1.0D.
As shown in fig. 1, at least the first portion 11 is provided with a spoiler hole 2, the spoiler hole 2 is provided in a circumferential wall of the first portion 1 and communicates an inner space and an outer space of the first portion 11, and the spoiler hole 2 extends in a first direction orthogonal to a longitudinal direction of the pile foundation 1, in other words, the first direction may be a radial direction of the pile foundation 1, or the first direction may be a horizontal direction.
When the tide rushes to the pile foundation 1 provided with the turbulence holes 2, the turbulence holes 2 penetrate through the peripheral wall of the first part 11, so that the tide can enter the first part 11 through the turbulence holes 2, the stop resistance of the pile foundation 1 to the tide is reduced, the buffer effect is achieved, and the formation of horseshoe-shaped vortex is inhibited. In order to improve the effects of energy dissipation and impact reduction, a plurality of flow disturbing holes 2 are arranged on the peripheral wall of the first part 1, the flow disturbing holes 2 are arranged at intervals in the up-down direction, or the flow disturbing holes 2 are arranged at intervals in the circumferential direction around the pile foundation 1, or the flow disturbing holes 2 are arranged in the up-down direction and in the circumferential direction around the pile foundation 1, and the distance between every two adjacent flow disturbing holes 2 is greater than or equal to 0.25D and smaller than or equal to 1.0D. The device can quickly dissipate energy and reduce the impact after the rapid flow or the main flow in the seawater enters the turbulent flow hole 2, and convert the rapid flow or the main flow into uniform slow flow, and has the characteristics of simplicity and high efficiency.
According to the offshore wind power foundation with the turbulence holes, the turbulence holes 2 are formed in the pile foundation 1, so that a rapid flow or a main flow in seawater is converted into a uniform slow flow, the impact of the seawater on the surface of the pile foundation is reduced, the formation of a horseshoe vortex is inhibited, and the offshore wind power foundation with the turbulence holes has good erosion resistance.
In some embodiments, two adjacent turbulence holes 2 in the length direction of the pile foundation 1 are staggered, and the distance between the two adjacent turbulence holes 2 in the circumferential direction around the pile foundation 1 is 0.25D to 1.0D, and/or the distance between the two adjacent turbulence holes 2 in the circumferential direction around the pile foundation 1 is staggered, and the distance between the two adjacent turbulence holes 2 in the length direction of the pile foundation 1 is 0.2D to 0.8D.
In other words, the spoiler holes 2 arranged along the length direction of the pile foundation 1 may have different circumferential arrangement positions, the distance between two adjacent spoiler holes 2 in the circumferential direction around the pile foundation 1 is 0.25D to 1.0D, or the turbulent flow holes 2 arranged along the circumferential direction around the pile foundation 1 can have different distances from the sea level in the up-down direction, the distance between the two adjacent turbulent flow holes 2 in the up-down direction is 0.2D to 0.8D, or the turbulent flow holes 2 arranged along the length direction of the pile foundation 1 have different circumferential arrangement positions, the distance between the two adjacent turbulent flow holes 2 in the circumferential direction around the pile foundation 1 is 0.25D to 1.0D, and the turbulent flow holes 2 arranged along the circumferential direction around the pile foundation 1 have different distances from the sea level in the up-down direction, and the distance between two adjacent turbulent flow holes 2 in the up-down direction is 0.2D to 0.8D. So set up the irregularity that can increase the vortex hole 2 that sets up on the first part 11, make vortex hole 2 when facing trend and horseshoe vortex, can break up the law of flow of trend and horseshoe vortex better and break up in disorder, change rivers flow direction and velocity of flow to a greater extent upwards, strengthen the scour protection ability on marine wind power basis to make marine wind power basis can deal with the trend and the horseshoe vortex of multiple energy gradient, strengthened the adaptability on marine wind power basis.
In some embodiments, the plurality of baffle holes 2 are divided into a plurality of rows, each baffle hole 2 comprises a plurality of baffle holes 2 arranged at equal intervals along the circumferential direction, the plurality of rows of baffle holes 2 are arranged along the length direction, and two adjacent baffle holes 2 are staggered in the length direction.
As an example, a plurality of baffle holes 2 are arranged on the pile foundation 1 at intervals in the up-down direction, each baffle hole 2 comprises a plurality of baffle holes 2, and the number of baffle holes 2 in each baffle hole 2 is equal. Every drain hole 2 has different distances with the sea level in the upper and lower direction to, two adjacent drain holes 2 stagger each other in the upper and lower direction, and a plurality of drain holes 2 in every drain hole 2 are arranged along circumference equidistance. At least a part of the multiple drain holes 2 are aligned in the up-down direction. As shown in fig. 1, four turbulence holes 2 are arranged on the pile foundation 1 at intervals in the vertical direction, and the first turbulence hole 2 and the third turbulence hole 2 are aligned in the vertical direction. First vortex hole 2 and third vortex hole 2 align in the upper and lower direction specifically mean: the plurality of baffle holes 2 in the first baffle hole 2 and the plurality of baffle holes 2 in the third baffle hole 2 are opposite to each other in a one-to-one correspondence in the up-down direction.
In some embodiments, the density of turbulator holes 2 increases towards the surface of the sea bed.
During the actual use of the offshore wind power foundation, the position on the first part 11, which is closer to the surface of the sea bed, is more impacted by the tide, and the possibility of generating horseshoe-shaped vortexes is higher. Therefore, in some embodiments, the turbulence holes 2 of the first part 11 near the lower part of the sea bed surface are dense, and the turbulence holes 2 of the upper part of the first part 11 are sparse, so that the density of the turbulence holes 2 is increased towards the direction near the sea bed surface, so as to better cope with the actual situation, preferably, when the linear distance between the adjacent turbulence holes 2 is less than 0.2D, the generation of horseshoe-shaped vortex can be effectively reduced, and the linear distance between the adjacent turbulence holes 2 is gradually reduced towards the direction near the sea bed surface, so that the anti-scouring capability and the practicability of the offshore wind power foundation can be enhanced.
In some embodiments, the outer circumferential surface of the first portion 11 comprises a front surface facing the tidal current direction, a back surface opposite to the front surface, and two side surfaces, and the density of the turbulence holes 2 distributed on the front surface and the back surface is greater than the density of the turbulence holes 2 distributed on the two side surfaces.
The tidal current direction generated in the flowing process of the seawater is uneven and is influenced by monsoon climate and earth rotation, the tidal current in some sea areas flows like things and things throughout the year, and the tidal current flowing in the north and south rarely occurs. The pile foundation 1 arranged in the sea areas mainly bears the flow of things, large erosion pits are easily generated on seabed on east and west sides of the pile foundation 1, while the erosion pits generated on seabed on south and north sides are small, so that the turbulent flow holes 2 can be densely arranged on the front surface of the first part 11 facing to the direction of the flow and the back surface opposite to the front surface, and a small number of the turbulent flow holes 2 are arranged on two sides of the first part 11, preferably, the distance between the adjacent turbulent flow holes 2 on the front surface and the back surface of the outer peripheral surface of the first part 11 is 0.25D to 0.5D, and the distance between the adjacent turbulent flow holes 2 on two sides of the first part 11 is 0.5D to 1.0D, so that the offshore wind power foundation has strong anti-erosion capacity, the manufacturing cost can be reduced, and the manufacturing difficulty is reduced.
In some embodiments, the turbulator holes 2 include a first turbulator hole 21 and a second turbulator hole 22 that are diametrically opposed to each other in the first portion 11.
The first turbulence hole 21 and the second turbulence hole 22 which are opposite to each other are arranged in the radial direction of the pile foundation 1, so that the tide which enters the pile foundation through the first turbulence hole 21 can flow out from the second turbulence hole 22 in the radial direction of the pile foundation 1, the stop resistance of the pile foundation 1 to the tide can be further reduced, or the tide can be further enabled to slow down the impact effect on the pile foundation 1, the formation of a horseshoe-shaped vortex can be better inhibited, and the anti-scouring capability of the offshore wind power foundation is enhanced.
In some embodiments, the spoiler holes 2 are also provided on the second portion 12, i.e. the second portion 12 is also provided with spoiler holes 2. Optionally, the turbulating holes 2 on the second portion 12 are disposed at a position of the second portion 12 close to the sea floor surface, and preferably, the turbulating holes 2 on the second portion 12 farthest from the sea floor surface are at a distance of 0.5D to 1.0D from the sea floor surface. When the scouring pit is formed on the surface of the sea bed near the offshore wind power foundation, the second part 12 which is originally positioned below the surface of the sea bed is exposed due to the formation of the scouring pit, the scouring effect can be effectively reduced due to the turbulent flow holes 2 arranged on the second part 12, the scouring pit is prevented from continuing to extend downwards, and the scouring prevention performance of the offshore wind power foundation is enhanced.
In some embodiments, a bead ring 3 is disposed on an outer circumferential surface of the first portion 11 at a corresponding position of the spoiler hole 2, the bead ring 3 is disposed around the spoiler hole 2, and the bead ring 3 protrudes from the outer circumferential surface of the first portion 11 in the first direction.
Erosion corrosion of seawater to pile foundation 1 can begin from the position that vortex hole 2 runs through first part 11 perisporium, for the corruption that slows down the seawater, set up reinforcing bar ring 3 on the outer peripheral face of first part 11, reinforcing bar ring 3 encircles vortex hole 2 and outwards protrudes along first direction, with the anti-erosion performance of reinforcing bar ring 3 on the basis of marine wind power, reinforcing bar ring 3 is the height of reinforcing bar ring 3 from the outside proud size of the outer peripheral face of first part 11, optionally, reinforcing bar ring 3's height is 100mm to 500mm, thickness on vortex hole 2 radial is 50mm to 120mm, both can strengthen the energy dissipation of pile foundation 1 and reduce the effect of dashing, can also improve pile foundation 1's life.
The shape of the turbulent flow hole 2 on the basis of the offshore wind power influences the energy dissipation and impact reduction effects of the pile foundation 1, as shown in fig. 3, in some embodiments, the upper and lower portions of the turbulent flow hole 2 are semicircles, the middle portion of the turbulent flow hole is a square manhole, the diameter of a short shaft of the turbulent flow hole 2 is 300mm to 1000mm, and the length-width ratio is 1.5 to 2.5.
As shown in fig. 2, in other embodiments, the shape of the turbulent flow holes 2 is elliptical, the structural strength of the pile foundation 1 provided with the elliptical turbulent flow holes 2 is superior to that of the pile foundation 1 provided with the manhole-shaped turbulent flow holes 2, and when the aperture of the minor axis of the elliptical turbulent flow holes 2 is 0.05D-0.1D, the energy dissipation and impact reduction effects of the pile foundation 1 and the anti-scouring capability of the offshore wind power foundation can be further enhanced without affecting the structural performance of the pile foundation 1, and the pile foundation has the characteristics of simple structure, environmental protection, energy conservation and long service life. Preferably, when the diameter of the pile foundation 1 is 6m, the oval turbulent flow hole 2 with the minor axis aperture of 420mm is arranged on the pile foundation 1, and the energy dissipation and impact reduction effects of the pile foundation 1 and the anti-scouring capability of the offshore wind power foundation are optimal.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An offshore wind farm foundation having a spoiler hole, comprising:
a pile foundation including a first portion and a second portion interconnected in a length direction thereof, the second portion being buried in a seabed, the seabed having a seabed surface, the first portion being located above the seabed surface;
the flow disturbing holes are at least arranged on the first portion and penetrate through the peripheral wall of the first portion in the first direction, the first direction is orthogonal to the length direction of the pile foundation, the flow disturbing holes comprise a plurality of flow disturbing holes, the flow disturbing holes are arranged in the length direction of the pile foundation and/or around the periphery of the pile foundation at intervals, the outer diameter of the first portion is D, and the interval between the flow disturbing holes is larger than or equal to 0.25D and smaller than or equal to 1D.
2. Offshore wind farm with spoilers according to claim 1,
the two adjacent turbulent flow holes are staggered in the length direction of the pile foundation, the distance between the two adjacent turbulent flow holes in the circumferential direction around the pile foundation is 0.25D-1D,
and/or two adjacent spoiler holes are staggered in the circumferential direction around the pile foundation, and the distance between the two adjacent spoiler holes in the length direction of the pile foundation is 0.2D to 0.8D.
3. Offshore wind farm with spoiling holes according to claim 2,
the plurality of the turbulence holes are divided into a plurality of rows, each turbulence hole comprises a plurality of the turbulence holes which are arranged in the circumferential direction at equal intervals, the plurality of the turbulence holes are arranged in the length direction, and the adjacent two turbulence holes are staggered in the length direction.
4. Offshore wind farm with spoilers according to claim 1,
the density of the turbulent flow holes is increased towards the direction close to the sea bed surface.
5. Offshore wind farm with spoilers according to claim 1,
the outer peripheral surface of the first portion comprises a front surface facing the tide direction, a back surface opposite to the front surface and two side surfaces, and the density of the turbulence holes distributed on the front surface and the back surface is greater than that of the turbulence holes distributed on the two side surfaces.
6. Offshore wind farm with spoilers according to claim 1,
the turbulator hole includes a first turbulator hole and a second turbulator hole that are diametrically opposed to each other in the first portion.
7. Offshore wind farm with spoilers according to claim 1,
the baffle aperture is also disposed on the second portion.
8. Offshore wind farm with spoilers according to claim 1,
and a reinforcing rib ring is arranged on the outer peripheral surface of the first part at a position corresponding to the flow disturbing hole, is arranged around the flow disturbing hole and protrudes from the outer peripheral surface of the first part along the first direction.
9. Offshore wind farm with spoiling holes according to claim 8,
the size of the reinforcing rib ring in the first direction is the height of the reinforcing rib ring, and the height of the reinforcing rib ring is 100mm to 500 mm.
10. Offshore wind farm with spoiler holes according to any of the claims 1-9,
the orifice has a minor axis and a major axis, the minor axis of the orifice has an aperture of 300mm to 1000mm, and a ratio of the major axis to the minor axis is 1.5 to 2.5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111096625.9A CN113789807A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power foundation with turbulence holes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111096625.9A CN113789807A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power foundation with turbulence holes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040174A1 (en) * | 2021-09-16 | 2023-03-23 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power foundation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012013618B3 (en) * | 2012-07-10 | 2013-09-12 | Voith Patent Gmbh | Offshore power generation plant and assembly process |
| US20170167101A1 (en) * | 2015-12-09 | 2017-06-15 | Innogy Se | Pile for an offshore monopile type foundation structure |
| CN211257094U (en) * | 2019-09-04 | 2020-08-14 | 湖南工程学院 | Protection device for be used for offshore wind turbine pile foundation scour prevention |
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2021
- 2021-09-16 CN CN202111096625.9A patent/CN113789807A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012013618B3 (en) * | 2012-07-10 | 2013-09-12 | Voith Patent Gmbh | Offshore power generation plant and assembly process |
| US20170167101A1 (en) * | 2015-12-09 | 2017-06-15 | Innogy Se | Pile for an offshore monopile type foundation structure |
| CN211257094U (en) * | 2019-09-04 | 2020-08-14 | 湖南工程学院 | Protection device for be used for offshore wind turbine pile foundation scour prevention |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040174A1 (en) * | 2021-09-16 | 2023-03-23 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power foundation |
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