CN114059576A - Offshore wind turbine layout design method considering scouring protection - Google Patents

Offshore wind turbine layout design method considering scouring protection Download PDF

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CN114059576A
CN114059576A CN202210051566.1A CN202210051566A CN114059576A CN 114059576 A CN114059576 A CN 114059576A CN 202210051566 A CN202210051566 A CN 202210051566A CN 114059576 A CN114059576 A CN 114059576A
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offshore wind
row
wind turbine
wave
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CN114059576B (en
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葛洪丽
李华军
梁丙臣
张黎邦
李子翰
章祥和
周承霖
魏浩强
吕英康
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Ocean University of China
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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
    • E02D27/10—Deep foundations
    • E02D27/12—Pile foundations
    • E02D27/16—Foundations formed of separate piles
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/22—Foundations specially adapted for wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F30/00—Computer-aided design [CAD]
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    • G06F2113/00—Details relating to the application field
    • G06F2113/06—Wind turbines or wind farms
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    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/727—Offshore wind turbines

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Abstract

The invention discloses an offshore wind turbine layout design method considering scouring protection, which relates to the technical field of coastal engineering and is characterized in that the diameter of a basic structure is determined based on a selected wind turbine type; determining individual rows of wind farm after micro-addressing of offshore wind farmNumber of pile foundations NxAnd the number N of single-row pile foundationsy(ii) a Obtaining wave field statistical elements within the field: wavelength lambda and wave direction theta; determining row spacing of single pile foundation of wind power plant
Figure 559704DEST_PATH_IMAGE001
Row spacing
Figure 742424DEST_PATH_IMAGE002
And arrangements thereof. The arrangement in the form can effectively reduce the acceleration field of the field, and compared with the conventional linear arrangement, the arrangement can not only reduce the wave field distribution in the field, but also effectively reduce the wave field distribution before and after the structure, thereby reducing the wave load of the pile foundation and weakening the hydraulic elements causing scouring. The invention can reduce the structure cost of the foundation of the offshore wind turbine device and can also reduce the scouring protection cost of the foundation of the wind power generation device.

Description

Offshore wind turbine layout design method considering scouring protection
Technical Field
The invention relates to the technical field of coastal engineering, in particular to a layout design method of an offshore wind turbine considering scouring protection.
Background
As the development of world offshore wind power begins to enter a large-scale development stage, the heat tide of the construction of China offshore wind power plants also comes with the development of world offshore wind power. In the aspect of offshore wind power, the third national wind energy resource general survey conducted by the China weather service and the development and reform Commission shows that about 7.5 hundred million kilowatts of offshore developable wind energy is located in the east coast of China, so that the offshore developable wind energy has huge resource development potential and good development and utilization market conditions, but because the east coast area of China is often influenced by natural disasters such as typhoon and the like, the construction conditions and the opening difficulty are more complicated than those in foreign countries.
The offshore wind turbine generator system has the advantages that a plurality of supporting structures are adopted in the offshore wind turbine generator system, the single-pile foundation is a foundation structure which is most widely applied, statistical data show that the proportion of the single-pile foundation in the offshore wind turbine foundation is more than 65%, and the research on the design and analysis method of the single-pile foundation has important engineering application significance.
The pile foundation of offshore wind power is affected by tide or ocean current, and eddy current is formed around the pile foundation. The larger the pile foundation is, the larger the flow resisting area is, and the higher the eddy speed is; the closer to the pile foundation, the greater the water flow rate. So that the sand and sand are more easily washed near the pile foundation. The local scouring not only affects the sediment deposition around the foundation, but also changes the vibration frequency of the structure, and even reduces the lateral bearing capacity and the anti-seismic performance of the structure. Therefore, how to adopt proper protection measures and reduce local scouring around the foundation is one of the important problems to be faced when designing the offshore wind power single-pile foundation.
In order to control the pile erosion and ensure the structure safety, a plurality of anti-erosion protection measures are provided at present. The anti-scour measures are mainly classified into two categories, one is a measure for improving the anti-scour capability of the bed surface arranged on the bed surface around the bottom of the pile, and the other is a measure for weakening the hydraulic elements (such as descending water flow and horseshoe vortex) causing scour by arranging around the pile or changing the shape of the pile. These two types of measures are also referred to as bed-surface-strengthening measures (bed-reinforcing measures) and water-flow-controlling measures (flow-alternating measures), respectively. The common bed surface strengthening measures include multiple protection measures such as riprap, mattress sinking, gabion and the like. These protective measures have been widely used in the protection of bridges against impacts. The riprap protection measures are widely applied as the protection measures of the foundation of the wind power generation device in the marine environment. And water flow control measures, such as horizontal partition plates, foundation expansion, impact reduction piles, sand blocking sills, sleeves, tetrahedral frame groups, column body slotting and the like.
But the initial investment cost and the operation and maintenance cost of such protection measures are high.
Disclosure of Invention
In view of the above, the invention provides a layout design method of an offshore wind turbine considering scouring protection, which combines a sinusoidal grating equation, a multi-slit grating theory and a crystal Bragg resonance law with the practical application of the basic layout of an offshore wind turbine device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a layout design method for an offshore wind turbine considering scouring protection comprises the following steps:
s1, determining the diameter of the base structure based on the selected fan type;
s2, determining the number of pile foundations of a single row of the wind power plant after micro-site selection of the offshore wind power plant
Figure 5306DEST_PATH_IMAGE001
And the number of single-row pile foundations
Figure 889824DEST_PATH_IMAGE002
；
S3, obtaining wave field statistical elements in the field: wavelength of light
Figure 138402DEST_PATH_IMAGE003
Direction of wave
Figure 205715DEST_PATH_IMAGE004
；
S4, determining row spacing of single-pile foundation of wind power plant
Figure 488929DEST_PATH_IMAGE005
Row spacing
Figure 780233DEST_PATH_IMAGE006
And arrangements thereof.
Preferably, the step S1 specifically includes: the diameter of the foundation structure is mainly determined by the allowable overall frequency of the fan type.
Preferably, the step S2 specifically includes:
and S21, determining the range of the field according to the influence factors such as landform, dominant wind direction, dominant wind energy direction, ground obstacles and the like.
S22, determining the number of pile foundations of a single row of the wind power plant according to the field area range, the total installed capacity and the single machine capacity
Figure 516108DEST_PATH_IMAGE001
And the number of single-row pile foundations
Figure 183850DEST_PATH_IMAGE002
。
Preferably, the step S4 specifically includes:
s41, control element pile row spacing of single pile
Figure 820105DEST_PATH_IMAGE005
The projection distance between the piles on the x axis meets the Bragg resonance law:
Figure 282311DEST_PATH_IMAGE007
wherein
Figure 505482DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 711335DEST_PATH_IMAGE003
for the purpose of the corresponding wavelength(s),
Figure 703562DEST_PATH_IMAGE008
the number of single pile foundations in each row;
s42, controlling element pile row pitch of single pile
Figure 602248DEST_PATH_IMAGE006
The projection distance between piles on the y axis meets the light intensity main-level small formula:
Figure 578294DEST_PATH_IMAGE009
wherein
Figure 322259DEST_PATH_IMAGE004
Planning of blocking waves for a sea area to be shelteredThe wave direction of the waves is such that,
Figure 933107DEST_PATH_IMAGE003
for the purpose of the corresponding wavelength(s),
Figure 737115DEST_PATH_IMAGE010
the number of the single pile foundations in each row;
s43, the arrangement form of the offshore wind power single-pile foundation is a periodic form, wherein the wavelength of the control element is controlled
Figure 934878DEST_PATH_IMAGE011
The grating theory is satisfied, namely:
Figure 482534DEST_PATH_IMAGE012
wherein
Figure 121457DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 361945DEST_PATH_IMAGE003
the amplitude A is a non-control element for the corresponding wavelength, and satisfies
Figure 285820DEST_PATH_IMAGE013
。
Preferably, the offshore wind power single pile foundation arrangement form of the step S43 is a sine periodic form, wherein the control element is a sine wave length
Figure 637167DEST_PATH_IMAGE011
The grating theory is satisfied, namely:
Figure 458492DEST_PATH_IMAGE012
wherein
Figure 869882DEST_PATH_IMAGE004
Planning of blocking waves for a sea area to be shelteredThe wave direction of the waves is such that,
Figure 776658DEST_PATH_IMAGE003
the sinusoidal amplitude A is a non-controlling element for the corresponding wavelength, and is generally satisfied
Figure 666116DEST_PATH_IMAGE013
And (4) finishing.
Preferably, the single pile can be rectangular pile or round pile, the size of the single pile is a non-control element, wherein the width (rectangular pile) or the diameter (round pile) a of the single pile satisfies the requirement
Figure 607528DEST_PATH_IMAGE014
And is
Figure 189819DEST_PATH_IMAGE015
And (4) finishing.
Advantageous effects
The invention can modulate the wave field in and around the field by utilizing the structural characteristics of the wind turbine when the offshore wind turbine is arranged, so that the wave field distribution is reduced, the load of a single pile foundation is reduced, and the hydraulic elements causing scouring are weakened. Therefore, the invention can reduce the structural cost of the foundation of the offshore wind turbine device and also can reduce the protection cost of the foundation of the wind power generation device.
According to the invention, the modulation effect of the multi-pile structure arranged in a sine curve on waves is utilized to prevent the wind turbine foundation of the field area from resonating with the waves, and the waves are subjected to dispersion with high diffraction efficiency in the transmission process, so that energy dissipation is generated, the wave field distribution in and around the field is reduced, the load of a single-pile foundation is reduced, and the hydraulic elements causing scouring are weakened.
By designing the layout form of the foundation of the offshore wind turbine device, the invention not only avoids the resonance between the wind turbine device and the waves in the field region, but also reduces the wave field distribution in the field region, thereby directly reducing the structural strength of the wind turbine foundation and weakening the hydraulic elements causing scouring. The structure cost of the foundation of the offshore wind turbine device is reduced, and the scouring protection cost of the foundation of the wind power generation device can be reduced. The present invention may be sinusoidal in form, but is not limited to any arrangement that satisfies the grating equation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic diagram of the basic layout of the present invention;
FIG. 3 is a schematic diagram of a wave field distribution effect of a non-sinusoidal offshore wind turbine installation base provided in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a wave field distribution effect of a sinusoidal offshore wind turbine device based on an embodiment of the present invention;
remarking: the distribution of the wave velocity potential function is given in fig. 3 and 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, 2, and 4, the embodiment discloses a layout design method of an offshore wind turbine with consideration of erosion protection, which includes the following steps:
s1, determining the diameter of the base structure based on the selected fan type;
s11, the diameter of the foundation structure is mainly determined by the complete machine frequency allowed by the fan type, and the diameter of the foundation structure is determined to be 0.4m in the embodiment.
S2, for offshore wind powerDetermining the number of the pile foundations of the single row of the wind power plant after microcosmic site selection
Figure 82426DEST_PATH_IMAGE001
And the number of single-row pile foundations
Figure 775576DEST_PATH_IMAGE002
；
The method comprises the following specific steps:
and S21, determining the range of the field according to the influence factors such as landform, dominant wind direction, dominant wind energy direction, ground obstacles and the like.
S22, determining the number of pile foundations of a single row of the wind power plant according to the field area range, the total installed capacity and the single machine capacity
Figure 305914DEST_PATH_IMAGE001
And the number of single-row pile foundations
Figure 59106DEST_PATH_IMAGE002
. The number of the pile foundations of the single row of the wind power plant is determined in the embodiment
Figure 940475DEST_PATH_IMAGE001
Number of piles of 57 and single row
Figure 437315DEST_PATH_IMAGE002
Is 4.
S3, obtaining wave field statistical elements in the field: wavelength of light
Figure 556581DEST_PATH_IMAGE003
Direction of wave
Figure 713631DEST_PATH_IMAGE004
(ii) a Wavelength of light
Figure 82295DEST_PATH_IMAGE003
112m, wave direction
Figure 117247DEST_PATH_IMAGE004
Is 90。。
S4、Determining row spacing of single pile foundation of wind power plant
Figure 887757DEST_PATH_IMAGE005
Row spacing
Figure 717173DEST_PATH_IMAGE006
And the arrangement form is that the row spacing of the single pile foundation of the embodiment is
Figure 573133DEST_PATH_IMAGE005
1m, row pitch of
Figure 411776DEST_PATH_IMAGE006
2m, the arrangement form is a sine periodic form.
The method comprises the following specific steps:
s41, control element pile row spacing of single pile
Figure 771213DEST_PATH_IMAGE005
The projection distance between the piles on the x axis meets the Bragg resonance law:
Figure 535645DEST_PATH_IMAGE016
wherein
Figure 613322DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 255656DEST_PATH_IMAGE003
for the purpose of the corresponding wavelength(s),
Figure 758DEST_PATH_IMAGE008
the number of single pile foundations in each row;
s42, controlling element pile row pitch of single pile
Figure 171977DEST_PATH_IMAGE006
The projection distance between piles on the y axis meets the light intensity main-level small formula:
Figure 2529DEST_PATH_IMAGE009
wherein
Figure 182975DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 517004DEST_PATH_IMAGE003
for the purpose of the corresponding wavelength(s),
Figure 640817DEST_PATH_IMAGE010
the number of the single pile foundations in each row;
s43, the arrangement form of the offshore wind power single-pile foundation is a sine periodic form, wherein the sine wavelength of the control element
Figure 693086DEST_PATH_IMAGE017
(m) satisfies the grating theory, namely:
Figure 411644DEST_PATH_IMAGE012
wherein
Figure 865759DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 644359DEST_PATH_IMAGE003
the corresponding wavelength. The sine amplitude A is a non-control element and generally satisfies
Figure 183924DEST_PATH_IMAGE013
Then the method is finished;
s44, the single pile is a round pile, and the diameter of the single pile is 0.4 m. In practical application, the single pile can be rectangular pile or round pile, the size of the single pile is a non-control element, wherein the width (rectangular pile) or the diameter (round pile) a of the single pile satisfies the requirement
Figure 706173DEST_PATH_IMAGE014
And is
Figure 14794DEST_PATH_IMAGE018
And (4) finishing.
Fig. 3 is a comparative example, in which the linear arrangement is the arrangement form of a conventional offshore wind turbine, the row pitch and the column pitch of the piles in the figure do not satisfy the steps S41, S42, and S43, and fig. 4 is the arrangement form of the sinusoidal equidistant offshore wind power adopted in the present embodiment. The arrangement is as shown in fig. 2, and the sine wave length of the row pitch, the column pitch and the pile combination respectively satisfy the steps S41, S42 and S43. Compare in traditional offshore wind turbine arrangement form, through the modulation effect of many pile foundations of sinusoidal equidistant dispersion to the wave, can avoid the fan device basis in field and wave to take place resonance, and make the wave produce the phase difference in the transmission process, thereby take place high diffraction dispersion, produce energy consumption, not only can reduce the wave field distribution in the field, can also effectively reduce the wave field distribution before the structure with behind the structure, thereby reduce the wave load of pile foundation, weaken the water conservancy key element that causes the erode.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A layout design method for an offshore wind turbine considering scouring protection is characterized by comprising the following steps:
s1, determining the diameter of the base structure based on the selected fan type;
s2, determining the number of pile foundations of a single row of the wind power plant after micro-site selection of the offshore wind power plant
Figure 328224DEST_PATH_IMAGE001
And the number of single-row pile foundations
Figure 581350DEST_PATH_IMAGE002
；
S3, obtaining wave field statistical elements in the field: wavelength of light
Figure 71238DEST_PATH_IMAGE003
Direction of wave
Figure 601576DEST_PATH_IMAGE004
；
S4, determining row spacing of single-pile foundation of wind power plant
Figure 885927DEST_PATH_IMAGE005
Row spacing
Figure 298454DEST_PATH_IMAGE006
And arrangements thereof.
2. The offshore wind turbine layout design method considering scouring protection as claimed in claim 1, wherein the step S1 specifically includes:
and S11, determining the diameter of the base structure by the complete machine frequency allowed by the fan type.
3. The offshore wind turbine layout design method considering scouring protection as claimed in claim 1, wherein the step S2 specifically includes:
s21, determining the influence factors of the field area range, including: landform, main wind direction, main wind energy direction and ground obstacle;
S22determining the number of pile foundations of a single row of the wind power plant according to the field area range, the total installed capacity and the single machine capacity
Figure 903616DEST_PATH_IMAGE001
And the number of single-row pile foundations
Figure 350778DEST_PATH_IMAGE002
。
4. The offshore wind turbine layout design method considering scouring protection as claimed in claim 1, wherein the step S4 specifically includes:
s41, control element pile row spacing of single pile
Figure 9292DEST_PATH_IMAGE005
The projection distance between the piles on the x axis meets the Bragg resonance law:
Figure 174695DEST_PATH_IMAGE007
wherein
Figure 68701DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 370370DEST_PATH_IMAGE003
for the purpose of the corresponding wavelength(s),
Figure 199785DEST_PATH_IMAGE008
the number of single pile foundations in each row;
s42, controlling element pile row pitch of single pile
Figure 586904DEST_PATH_IMAGE006
The projection distance between piles on the y axis meets the light intensity main-level small formula:
Figure 35334DEST_PATH_IMAGE009
wherein
Figure 457088DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 457405DEST_PATH_IMAGE003
for the purpose of the corresponding wavelength(s),
Figure 331821DEST_PATH_IMAGE010
the number of the single pile foundations in each row;
s43, the arrangement form of the offshore wind power single-pile foundation is a periodic form, wherein the wavelength of the control element is controlled
Figure 567630DEST_PATH_IMAGE011
The grating theory is satisfied, namely:
Figure 843890DEST_PATH_IMAGE012
wherein the wave direction of the waves is planned to be blocked for the sea area to be sheltered,
Figure 15109DEST_PATH_IMAGE003
the amplitude A is a non-control element for the corresponding wavelength, and satisfies
Figure 376820DEST_PATH_IMAGE013
。
5. The offshore wind turbine layout design method considering scouring protection as claimed in claim 4, wherein the offshore wind power single pile foundation layout in step S43 is in a sine periodic form, and the sine wavelength of the control elements
Figure 665588DEST_PATH_IMAGE011
The grating theory is satisfied, namely:
Figure 61934DEST_PATH_IMAGE014
wherein
Figure 669633DEST_PATH_IMAGE004
Planning to block the wave direction of the waves for the intended sheltering sea area,
Figure 315378DEST_PATH_IMAGE003
the sine amplitude A is a non-control element for the corresponding wavelength and satisfies
Figure 830673DEST_PATH_IMAGE013
。
6. The layout design method for the offshore wind turbine with consideration of scouring protection according to any one of claims 1 to 5, wherein the single pile is a rectangular pile or a circular pile, the size of the single pile is an uncontrolled element, and the width of the rectangular pile or the diameter a of the circular pile satisfies the requirement
Figure 284788DEST_PATH_IMAGE015
And is
Figure 860126DEST_PATH_IMAGE016
And (4) finishing.
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