CN113774951A - Offshore wind power foundation with turbulence nails - Google Patents
Offshore wind power foundation with turbulence nails Download PDFInfo
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- CN113774951A CN113774951A CN202111087572.4A CN202111087572A CN113774951A CN 113774951 A CN113774951 A CN 113774951A CN 202111087572 A CN202111087572 A CN 202111087572A CN 113774951 A CN113774951 A CN 113774951A
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- 230000007423 decrease Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009991 scouring Methods 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 239000013535 sea water Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 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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Abstract
The invention provides an offshore wind power foundation with turbulence nails, which comprises a pile foundation and the turbulence nails, wherein the pile foundation comprises a first part and a second part which are mutually connected in the length direction of the pile foundation, the second part is embedded in a seabed, the seabed is provided with a seabed surface, and the first part is positioned above the seabed surface; the turbulence nails are at least arranged on the first portion, the turbulence nails protrude from the outer peripheral surface of the first portion along the first direction, the first direction is orthogonal to the length direction of the pile foundation, the ratio of the size of the turbulence nails in the length direction of the pile foundation to the size of the turbulence nails in the circumferential direction surrounding the pile foundation is greater than or equal to 1/2 and less than or equal to 2, the turbulence nails are arranged in the length direction of the pile foundation and/or in the circumferential direction surrounding the pile foundation at intervals, the outer diameter of the first portion is d, and the interval between adjacent turbulence nails is greater than or equal to 0.25d and less than or equal to 1.0 d. The offshore wind power foundation with the turbulence nails has the advantages of good turbulence effect, higher stability and the like.
Description
Technical Field
The invention relates to the field of offshore wind power, in particular to an offshore wind power foundation with turbulence nails.
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 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 turbulence nails, which can effectively disturb the tidal current.
The offshore wind power foundation with the spoiler nail according to the present invention comprises:
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 vortex nail, the vortex nail is established at least on the first portion, the vortex nail is followed the outer peripheral face of first portion is outstanding along first direction, first direction quadrature in the length direction of pile foundation, the vortex nail is in size on the length direction of pile foundation rather than encircleing the ratio more than or equal to 1/2 and less than or equal to 2 of the ascending size in circumference of pile foundation, the vortex nail is a plurality of, and is a plurality of the vortex nail is in on the length direction of pile foundation and/or encircleing the interval is arranged in circumference of pile foundation, the external diameter of first portion is d, and is adjacent interval more than or equal to 0.25d less than or equal to 1.0d between the vortex nail.
According to the offshore wind power foundation, the turbulence nails are utilized to 'break up' the tidal current, so that the flow speed and the direction of the tidal current near the pile foundation are changed, the energy of the tidal current is further dissipated to a certain extent, larger horseshoe-shaped vortex cannot be generated in front of the pile foundation, and the formation of the horseshoe-shaped vortex is restrained at the source. And set up the grit around the vortex nail can protect pile foundation effectively to can avoid scouring the formation in hole, and then make pile foundation 1 more stable.
In some embodiments, two adjacent turbulence pins in the length direction of the pile foundation are staggered, the interval between the two adjacent turbulence pins in the circumferential direction around the pile foundation is 0.25d to 1.0d,
and/or, the two adjacent turbulence nails are staggered in the circumferential direction around the pile foundation, and the distance between the two adjacent turbulence nails in the length direction of the pile foundation is 0.1d to 0.4 d.
In some embodiments, the plurality of turbulence nails are divided into a plurality of columns, each column of the turbulence nails comprises a plurality of the turbulence nails arranged at equal intervals along the length direction, the plurality of columns of the turbulence nails are arranged along the circumferential direction, and two adjacent columns of the turbulence nails are staggered in the circumferential direction.
In some embodiments, the density of turbulators increases in a direction toward the surface of the ocean 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 turbulators distributed on the front surface and the back surface is greater than the density of the turbulators distributed on the two side surfaces.
In some embodiments, the size of a part of the turbulence spikes is different from the size of the rest of the turbulence spikes, and the turbulence spikes with different sizes are alternately arranged on the outer circumferential surface of the first portion.
In some embodiments, the turbulator pins include one or more of hemispherical turbulator pins, triangular turbulator pins, square turbulator pins, cylindrical turbulator pins, and tapered turbulator pins,
wherein the surface of the hemispherical turbulence nail is hemispherical, the sectional area of the hemispherical turbulence nail is reduced from the outer peripheral surface of the first part along the first direction,
the cross section of the triangular turbulence nail is triangular, and the axial direction of the triangular turbulence nail is along the length direction of the pile foundation or along the first direction,
the cross section of the square turbulence nail is square, and the axial direction of the square turbulence nail is along the first direction,
the section of the cylindrical turbulence nail is circular, and the axial direction of the cylindrical turbulence nail is along the length direction of the pile foundation or along the first direction,
the cross-sectional area of the tapered turbulator pin decreases from the outer circumferential surface of the first portion in the first direction.
In some embodiments, the plurality of turbulence nails include a plurality of hemispherical turbulence nails, triangular turbulence nails, square turbulence nails, cylindrical turbulence nails, and tapered turbulence nails, and the plurality of types of turbulence nails are alternately arranged on the outer circumferential surface of the first portion.
In some embodiments, the turbulator pin is also disposed on the second portion.
In some embodiments, a dimension of the spoiler nail in the first direction is a thickness of the spoiler nail, and the thickness of the spoiler nail is 0.1m to 0.4 m.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic illustration of an offshore wind farm according to an embodiment of the first aspect of the present invention.
Fig. 2 is an enlarged schematic view at Z in fig. 1.
FIG. 3 is a schematic illustration of an offshore wind farm according to an embodiment of the second aspect of the present invention.
FIG. 4 is a schematic illustration of an offshore wind farm according to an embodiment of the third aspect of the present invention.
FIG. 5 is a schematic view of an offshore wind farm according to a fourth aspect embodiment of the present invention.
FIG. 6 is a schematic illustration of an offshore wind farm according to an embodiment of the fifth aspect of the present invention.
FIG. 7 is a schematic illustration of an offshore wind farm according to an embodiment of the sixth aspect of the present invention.
Fig. 8 is a schematic view of an offshore wind farm according to a seventh aspect embodiment of the present invention.
Reference numerals:
an offshore wind power foundation 100; pile foundations 1; a first portion 11; a second portion 12; a turbulence pin 2; the sea bed surface 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 power foundation 100 according to an embodiment of the invention is described below with reference to fig. 1-8, the offshore wind power foundation 100 comprising a pile foundation 1 and a spoiler pin 2.
The pile foundation 1 comprises a first part 11 and a second part 12 connected to each other in the length direction thereof, the second part 12 being buried in the seabed, the seabed having a seabed surface 3, the first part 11 being located above the seabed surface 3;
the turbulence nails 2 are at least arranged on the first portion 11, the turbulence nails 2 protrude from the outer peripheral surface of the first portion 11 along a first direction, the first direction is orthogonal to the length direction of the pile foundation 1, the ratio of the size of the turbulence nails 2 in the length direction of the pile foundation 1 to the size of the turbulence nails 2 in the circumferential direction around the pile foundation 1 is greater than or equal to 1/2 and less than or equal to 2, the turbulence nails 2 are multiple, the turbulence nails 2 are arranged at intervals in the length direction of the pile foundation 1 and/or in the circumferential direction around the pile foundation 1, the outer diameter of the first portion 11 is d, and the interval between the adjacent turbulence nails 2 is greater than or equal to 0.25d and less than or equal to 1.0 d.
In order to make the technical solution of the present application easier to understand, the technical solution of the present application will be further described below by taking as an example that the length direction of the pile foundation 1 coincides with the up-down direction, wherein the up-down direction is shown in fig. 1.
As known to those skilled in the art, the conventional pile foundations 1 are hollow cylindrical structures, and the sea bed surface 3 is the interface between seawater and underwater sand. A first part 11 and a second part 12 connected to each other are provided in order in the up-down direction of the pile foundation 1. The first part 11 of the pile foundation 1 is located in the sea water above the sea bed surface 3 and the second part 12 of the pile foundation 1 is buried in the sand below the sea bed surface 3. The spoiler nail 2 is fixed on the outer circumferential surface of the first portion 11.
It will be appreciated that in other embodiments, turbulator pegs are provided on both the first and second portions.
In order to make the technical solution of the present application easier to understand, the technical solution of the present application is further described below by taking the example that the first direction coincides with the radial direction of the pile foundation 1.
The radial direction of the pile foundation 1 is a direction perpendicular to the center line of the pile foundation 1, i.e., the radial direction of the pile foundation 1 is perpendicular to the outer circumferential surface of the pile foundation 1. The turbulence nails 2 are fixed on the outer peripheral surface of the pile foundation 1 and extend along the radial direction of the pile foundation 1.
The dimension of the turbulence nail 2 in the vertical direction is the length L of the turbulence nail 2, the dimension of the turbulence nail 2 in the circumferential direction of the pile foundation 1 is the width M of the turbulence nail 2, and L is 0.5-2 times of M, for example, L can be 0.5 times, 1 time, 1.5 times, 1.8 times, 2 times of M and the like.
A plurality of vortex nails 2 are arranged at intervals in the outer circumference of the pile foundation 1, and are also arranged at intervals in the up-down direction of the pile foundation 1. The first portion 11 has an outer diameter d, which ranges from 5 to 8 meters. For example, d is 5 meters, 6 meters, 6.5 meters, 7 meters, 8 meters, etc., preferably, d is 6 meters.
As shown in fig. 2, the interval between two adjacent spoiler nails 2 is e, where e is a linear distance between the central positions o of two adjacent spoiler nails 2 in space. e is 0.1 to 0.4 times d. For example, e can be 0.1d, 0.2d, 0.35d, 0.4d, and the like.
According to the offshore wind power foundation 100 provided by the embodiment of the invention, the turbulence nails 2 are utilized to 'break up' the tidal current, so that the flow speed and the direction of the tidal current near the pile foundation 1 are changed, the energy of the tidal current is further dissipated to a certain extent, and a large horseshoe-shaped vortex is not generated in front of the pile foundation 1, so that the formation of the horseshoe-shaped vortex is suppressed at the source. And set up the grit around vortex nail 2 can protect pile foundation 1 effectively to can avoid scouring the formation in hole, and then make pile foundation 1 more stable.
Therefore, the offshore wind power foundation 100 according to the embodiment of the invention has the advantages of good turbulence effect, higher stability and the like.
In some embodiments, two adjacent turbulence pins 2 are staggered in the length direction of the pile foundation 1, and the distance between the two adjacent turbulence pins 2 in the circumferential direction around the pile foundation 1 is 0.25d to 1.0 d.
And/or two adjacent turbulence nails 2 are staggered in the circumferential direction around the pile foundation 1, and the distance between the two adjacent turbulence nails 2 in the length direction of the pile foundation 1 is 0.1 d-0.4 d.
For the technical solution of the present application to be more easily understood, the height of the turbulator pins 2 is defined as the dimension from the turbulator pins 2 to the bottom surface of the pile foundation 1.
In the field of mathematics, the peripheral surface of a cylinder is divided into a plurality of lines parallel to the central line of the cylinder, and the lines are the generatrices of the cylinder. In order to make the technical scheme of the application easier to understand, a bus of the pile foundation 1 is defined as a straight line parallel to the center line of the pile foundation 1 on the outer peripheral surface of the pile foundation 1, and the turbulence nails 2 arranged on the bus of the same pile foundation 1 are defined as a row of turbulence nails 2.
As shown in fig. 1, 3 and 4, a plurality of turbulence nails 2 are distributed at intervals in the vertical direction to form a row of turbulence nails 2, the number of each row of turbulence nails 2 is the same, and a plurality of rows of turbulence nails 2 are distributed at intervals on the outer peripheral surface of the pile foundation 1.
The heights of the uppermost turbulence nail 2 in each row of turbulence nails 2 are different from the heights of the uppermost turbulence nail 2 in the adjacent row of turbulence nails 2, so that a plurality of rows of turbulence nails 2 are arranged on the outer peripheral surface of the pile foundation 1 in a staggered mode. For example, one row of the turbulence nails 2 is an A row, one row of the turbulence nails 2 adjacent to the A row of the turbulence nails 2 is a B row, the number of the turbulence nail 2 on the top of the A row of the turbulence nails 2 is A1, the numbers of the turbulence nails 2 on the top of the A row of the turbulence nails 2 are A2, A3 and A4 … in sequence, the number of the turbulence nail 2 on the top of the B row of the turbulence nails 2 is B1, the numbers of the turbulence nails 2 on the bottom of the B row of the turbulence nails 2 are B2, B3 and B4 … in sequence, A1 and B1 are not at the same height, further the A2 and the B2 are not at the same height, and the A row of the turbulence nails 2 and the B row of the turbulence nails 2 are arranged in a staggered mode in the circumferential direction of the pile foundation 1.
Further, in the circumferential direction of the pile foundation 1, there are turbulence pins 2 in columns C, D, E, F, etc. The turbulence pins 2 such as a1, B1, C1, D1, E1, F1 and the like can be arranged according to a certain rule, for example, the turbulence pins 2 such as a1, B1, C1, D1, E1, F1 and the like are arranged on the outer peripheral surface of the pile foundation 1 in a spiral rising manner. Alternatively, the spoiler nails 2 such as a1, B1, C1, D1, E1, F1, etc. may also be arranged randomly.
The distance between A1 and B1 in the up-down direction is 0.1d to 0.4d (wherein d is the pile foundation outer diameter), for example, the distance between A1 and B1 in the up-down direction is 0.1d, 0.2d, 0.3d, 0.4d, etc. It should be noted that, in each row of the turbulence nails 2, two adjacent turbulence nails 2 may be arranged at equal intervals, may also be arranged according to a certain rule, or may be arranged at random intervals. For example, in column A, the spacing between A1 and A2 is one value and the spacing between A2 and A3 is another value, which may or may not be equal.
It should be noted that in other embodiments, the number of two adjacent rows of turbulators may not be the same. For example, one row is provided with X turbulence nails, and the other row is provided with Y turbulence nails. Alternatively, a plurality of turbulators may be closely arranged together.
From this, can be according to certain law staggered arrangement between a plurality of vortex nails 2, also can arrange at random between a plurality of vortex nails 2, and then form diversified crisscross form on the surface of pile foundation 1 to can choose for use the vortex nail 2 of different crisscross forms according to the waters of difference, and then more effectually carry out the vortex to the trend, realize the diversification of marine wind power basis 100.
The case where the spoiler pins 2 are arranged at equal intervals will be briefly described below.
In some embodiments, the plurality of turbulence nails 2 are divided into a plurality of columns, each column of turbulence nails 2 includes a plurality of turbulence nails 2 arranged at equal intervals along the length direction, the plurality of columns of turbulence nails 2 are arranged along the circumferential direction, and two adjacent columns of turbulence nails 2 are staggered in the circumferential direction.
As shown in fig. 1, multiple rows of turbulence pins 2, such as A, B, C, D, E, F, are arranged on the outer circumferential surface of the pile foundation 1, and the intervals between two adjacent turbulence pins 2 in each row of turbulence pins 2 are equal. The spacing between a1 and a2, the spacing between a2 and A3, the spacing between A3 and a4, etc. are all equal. The spoilers 2 are regularly and alternately arranged, A1, C1, E1 and the like are at the same height, and B1, D1, F1 and the like are at the other height. The spacing between a1 and B1, the spacing between B1 and C1, the spacing between C1 and D1, etc. are all equal. From this, the regular equipartition of a plurality of vortex nails 2 is on the outer peripheral face of pile foundation 1 to be convenient for workman's processing vortex nail 2.
In the related technology, the position of the pile foundation close to the surface of the sea bed is the main place where the vortex is formed, the impact force of the tide on the pile foundation is larger, and the number of scouring pits caused by the vortex is larger.
In some embodiments, the density of turbulators 2 increases in a direction closer to the deck surface 3.
For example, as shown in fig. 4, the density of the spoiler nail 2 is gradually increased in the vicinity of the sea floor surface 3. Therefore, the design can carry out tidal current on the tidal current in a targeted manner so as to dissipate the energy of the vortex, and further the energy of the vortex can be dissipated before reaching the seabed surface 3, so that the formation of a scouring pit can be greatly reduced.
In the related art, the offshore wind power foundation is arranged in a shallow water area, in which the tidal current is mainly close to the coastline or far away from the coastline along a direction approximately perpendicular to the coastline when the tide rises and falls, so that the side of the pile foundation facing the coastline and the side opposite to the coastline are places where the tidal current mainly impacts. In the two places of the pile foundation, the impact force of the borne tide is larger, and the number of the scouring pits caused by the vortex is larger. The extending direction of the other two side surfaces of the pile foundation is consistent with the tide direction, and the tide mainly has friction and smaller impact force on the other two side surfaces of the pile foundation.
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 turbulators 2 distributed on the front surface and the back surface is greater than the density of the turbulators 2 distributed on the two side surfaces.
For example, the front face of the first portion 11 is the face facing away from the shoreline, and the back face of the first portion 11 is the face facing the shoreline. The density of the turbulence pins 2 arranged on the front and back of the pile foundation 1 is higher than that of the remaining two side surfaces of the pile foundation 1. For example, the density of the turbulence pins 2 arranged on the front surface and the side surface of the pile foundation 1 is 2 times that of the remaining two side surfaces. Therefore, the offshore wind power foundation 100 can not only have strong anti-scouring capacity, but also reduce the manufacturing cost and the manufacturing difficulty.
It will be appreciated that the front and back faces of the first portion 11 may be reversed, and in other embodiments the front face of the first portion 11 is the face facing the shoreline and the back face of the first portion 11 is the face facing away from the shoreline.
In some embodiments, a portion of the turbulence pins 2 has a different size from the remaining portion of the turbulence pins 2, and the turbulence pins 2 having different sizes are alternately arranged on the outer circumferential surface of the first portion 11.
As shown in fig. 2, the dimension of the turbulence nail 2 in the up-down direction is the length L of the turbulence nail 2, the dimension of the turbulence nail 2 in the circumferential direction of the pile foundation 1 is the width M of the turbulence nail 2, and the dimension of the turbulence nail 2 in the radial direction of the pile foundation 1 is the thickness N of the turbulence nail 2.
The first part 11 of the pile foundation 1 is provided with a plurality of turbulence nails 2, the dimensions of the turbulence nails 2 of the first part 11 are L1, M1 and N1, the rest turbulence nails 2 are arranged on the second part 12 of the pile foundation 1, the dimensions of the turbulence nails 2 of the second part 12 are L2, M2 and N2, and the values of L1, M1 and N1 are larger than the values of L2, M2 and N2, so that the turbulence nails 2 of the first part 11 can effectively disturb the tide.
In some embodiments, the turbulator pins 2 include one or more of hemispherical turbulator pins 2, triangular turbulator pins 2, square turbulator pins 2, cylindrical turbulator pins 2, and conical turbulator pins 2,
wherein, the surface of the hemispherical turbulence nail 2 is hemispherical, and the sectional area of the hemispherical turbulence nail 2 is reduced from the outer peripheral surface of the first part 11 along the first direction;
the cross section of the triangular turbulence nail 2 is triangular, and the axial direction of the triangular turbulence nail 2 is along the length direction of the pile foundation 1 or along a first direction;
the cross section of the square turbulence nail 2 is square, and the axial direction of the square turbulence nail 2 is along the first direction;
the section of the cylindrical turbulence nail 2 is circular, and the axial direction of the cylindrical turbulence nail 2 is along the length direction of the pile foundation 1 or along a first direction;
the cross-sectional area of the tapered spoiler pin 2 decreases in the first direction from the outer circumferential surface of the first portion 11.
As shown in fig. 1, 2-8, the turbulator pins 2 are in the shape of a common geometric body, such as a hemisphere, polyhedron, cylinder, cone, etc.
It will be appreciated that in other embodiments, the turbulator pegs may be of irregular geometry, and the axial direction of the turbulator pegs may be a curved direction intersecting the surface of the pile foundation along which the turbulator pegs extend.
From this, thereby set up the diversified vortex nail 2 of shape and increase the irregularity of vortex nail 2, and then can deal with the trend and the horseshoe vortex of multiple energy gradient, strengthened marine wind power basis 100's adaptability. Moreover, the turbulence nails 2 of different types are alternately distributed, so that turbulence effects of the turbulence nails 2 of different types can be mutually superposed, the impact reduction effect of the turbulence nails 2 is further enhanced, and the anti-scouring capability of the offshore wind power foundation 100 is enhanced.
In some embodiments, the plurality of turbulence nails 2 include a plurality of hemispherical turbulence nails 2, triangular turbulence nails 2, square turbulence nails 2, cylindrical turbulence nails 2, and tapered turbulence nails 2, and the plurality of types of turbulence nails 2 are alternately arranged on the outer circumferential surface of the first portion 11.
As shown in fig. 8, the turbulence nails 2 of different shapes can be arranged on each pile foundation 1, and the turbulence nails 2 of different shapes can be arranged in different areas and also can be alternately arranged, so that the diversified design of the offshore wind power foundation 100 can adapt to different sea areas, and the anti-scouring capability of the offshore wind power foundation 100 is enhanced.
In some embodiments, the spoiler pin 2 is also disposed on the second portion 12.
As shown in fig. 1, 2-8, the spoiler nail 2 on the second portion 12 is positioned adjacent to the deck surface 3 of the second portion 12.
When the scour pit is not formed, the turbulence pins 2 of the second portion 12 can increase the friction force between the pile foundation 1 and the seabed, thereby improving the stability of the pile foundation 1.
When the scouring pit is formed on the sea bed surface 3 near the offshore wind power foundation 100, the second part 12 originally positioned below the sea bed surface 3 is exposed due to the formation of the scouring pit, the scouring effect can be effectively reduced due to the turbulence nails 2 arranged on the second part 12, the scouring pit is prevented from continuing to extend downwards, and the anti-scouring performance of the offshore wind power foundation 100 is enhanced.
In some embodiments, the dimension of the spoiler nail 2 in the first direction is the thickness of the spoiler nail 2, and the thickness of the spoiler nail 2 is 0.1m to 0.4 m.
As shown in fig. 2, the thickness dimension of the spoiler pin is denoted by N, and when the spoiler pin 2 is a regular geometric body, the thickness of the spoiler pin 2 is the dimension of the spoiler pin 2 in the radial direction; when the turbulator pins 2 are irregular geometric bodies, the thickness of the turbulator pins 2 is the maximum dimension of the turbulator pins 2 in the radial direction.
For example, the thickness of the spoiler pin 2 is 0.1m, 0.2m, 0.3m, 0.4m, or the like.
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 power foundation with turbulator nails, 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 vortex nail, the vortex nail is established at least on the first portion, the vortex nail is followed the outer peripheral face of first portion is outstanding along first direction, first direction quadrature in the length direction of pile foundation, the vortex nail is in size on the length direction of pile foundation rather than encircleing the ratio more than or equal to 1/2 and less than or equal to 2 of the ascending size in circumference of pile foundation, the vortex nail is a plurality of, and is a plurality of the vortex nail is in on the length direction of pile foundation and/or encircleing the interval is arranged in circumference of pile foundation, the external diameter of first portion is d, and is adjacent interval more than or equal to 0.25d less than or equal to 1.0d between the vortex nail.
2. The offshore wind turbine foundation with turbulator pins of claim 1, wherein two adjacent turbulator pins are staggered in the length direction of the pile foundation, the distance between the two adjacent turbulator pins in the circumferential direction around the pile foundation is 0.25d to 1.0d,
and/or two adjacent turbulence nails are staggered in the circumferential direction around the pile foundation, and the distance between the two adjacent turbulence nails in the length direction of the pile foundation is 0.1 d-0.4 d.
3. The offshore wind power foundation with spoiler nails as recited in claim 2, wherein the spoiler nails are divided into a plurality of rows, each row of the spoiler nails comprises a plurality of spoiler nails arranged at equal intervals along the length direction, the plurality of rows of spoiler nails are arranged along the circumferential direction, and two adjacent rows of spoiler nails are staggered in the circumferential direction.
4. The offshore wind turbine foundation with turbulator nails of claim 1, wherein the density of the turbulator nails increases toward a direction proximate the surface of the seabed.
5. The offshore wind power foundation with turbulator nails of claim 1, wherein the outer peripheral surface of the first portion includes a front surface facing the direction of current, a back surface opposite to the front surface, and two side surfaces, and the turbulator nails distributed on the front surface and the back surface have a density greater than the density of the turbulator nails distributed on the two side surfaces.
6. The offshore wind power foundation with turbulator nails of claim 1, wherein a portion of the turbulator nails are different in size from the remaining portion of the turbulator nails, and the turbulator nails of different sizes are alternately arranged on the outer circumferential surface of the first portion.
7. The offshore wind farm with turbulator nails of any one of claims 1-6, wherein the turbulator nails comprise one or more of hemispherical turbulator nails, triangular turbulator nails, square turbulator nails, cylindrical turbulator nails, conical turbulator nails,
wherein the surface of the hemispherical turbulence nail is hemispherical, the sectional area of the hemispherical turbulence nail is reduced from the outer peripheral surface of the first part along the first direction,
the cross section of the triangular turbulence nail is triangular, and the axial direction of the triangular turbulence nail is along the length direction of the pile foundation or along the first direction,
the cross section of the square turbulence nail is square, and the axial direction of the square turbulence nail is along the first direction,
the section of the cylindrical turbulence nail is circular, and the axial direction of the cylindrical turbulence nail is along the length direction of the pile foundation or along the first direction,
the cross-sectional area of the tapered turbulator pin decreases from the outer circumferential surface of the first portion in the first direction.
8. The offshore wind power foundation with turbulator nails of claim 7, wherein the plurality of turbulator nails include a plurality of hemispherical turbulator nails, triangular turbulator nails, square turbulator nails, cylindrical turbulator nails, and tapered turbulator nails, and the plurality of turbulator nails are alternately arranged on the outer peripheral surface of the first portion.
9. The offshore wind farm with turbulators nails of claim 1, wherein the turbulators nails are further disposed on the second portion.
10. The offshore wind power foundation with turbulator nails of claim 1, wherein the turbulator nails have a dimension in the first direction that is a thickness of the turbulator nails, the thickness of the turbulator nails being 0.1m to 0.4 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087572.4A CN113774951A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power foundation with turbulence nails |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087572.4A CN113774951A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power foundation with turbulence nails |
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| CN113774951A true CN113774951A (en) | 2021-12-10 |
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| CN202111087572.4A Pending CN113774951A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power foundation with turbulence nails |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503079A (en) * | 2021-07-21 | 2021-10-15 | 东北电力大学 | Winding type spiral spoiler for restraining wind direction vibration of web member of steel pipe tower |
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| CN113186967A (en) * | 2021-05-18 | 2021-07-30 | 华能国际电力江苏能源开发有限公司 | Offshore wind power single-pile foundation device capable of preventing scouring |
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| CN201292540Y (en) * | 2008-11-19 | 2009-08-19 | 中交公路规划设计院有限公司 | Heave block type bridge foundation wave eliminating device |
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| CN113186986A (en) * | 2021-05-18 | 2021-07-30 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power single-pile foundation scouring protection device |
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Application publication date: 20211210 |
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