CN110344435A - A kind of neritic area blower foundation using bladder-type magnetic rheology elastic body - Google Patents
A kind of neritic area blower foundation using bladder-type magnetic rheology elastic body Download PDFInfo
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- CN110344435A CN110344435A CN201910629650.5A CN201910629650A CN110344435A CN 110344435 A CN110344435 A CN 110344435A CN 201910629650 A CN201910629650 A CN 201910629650A CN 110344435 A CN110344435 A CN 110344435A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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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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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/17—Geometrical or physical properties including an electric conductive element
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0045—Composites
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- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- 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
-
- 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
- Y02E10/728—Onshore wind turbines
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Abstract
A kind of neritic area blower foundation using bladder-type magnetic rheology elastic body of the invention, comprising: back taper pedestal, bottom plate, abutment wall and fixing seat；Bottom plate is fixed on the upper surface of back taper pedestal, abutment wall be tubular construction and be disposed around bottom plate upper surface edge, fixing seat is set in abutment wall and is fixed on the center of bottom plate, fixing seat includes the inner cylinder being arranged concentrically and outer cylinder, bladder-type magnetic rheology elastic body is filled between inner cylinder and outer cylinder, winding electromagnetic coil outside bladder-type magnetic rheology elastic body, the diameter of inner cylinder is matched with blower fan tower barrel for installing blower fan tower barrel, multiple floors are provided between the outer cylinder and abutment wall of fixing seat, space in abutment wall is divided into multiple cavities by floor, external loads are filled in cavity.The present invention is easy for construction by, to apply magnetic field to magnetic rheology elastic body, changing the rigidity and damping on basis to solenoid, can absorb sound, noise reduction, practical.
Description
Technical field
The invention belongs to offshore wind turbine technical field of power generation, with being related to a kind of shallow sea using bladder-type magnetic rheology elastic body
Area's blower foundation.
Background technique
China has a vast territory, seashore wire length, offshore wind energy resource very abundant.Offshore wind energy resource very abundant.It is marine
Wind power plant has many advantages, such as that wind speed is big, effective generating dutation is long, is not take up land, is close apart from load center, has and well may be used
Development prospect.Currently, offshore wind farm construction is in the ascendant in the world, domestic offshore wind farm has also formally been started to walk, and urgent need catches up with and surpasses state
Border advanced level.
The blower foundation of marine wind electric field at present, there are mainly three types of structures:
1, a large diameter steel pipe pile directly single-pile foundation: is squeezed into sea bed as blower foundation.At present to build up
The overwhelming majority all uses single-pile foundation in marine wind electric field.The major advantage of single-pile foundation is that structure type is simple, easy for construction,
Major defect is that adaptability is not strong.With the fast development of Wind turbines manufacturing technology, single-machine capacity constantly increases, the list needed
Stake diameter is increasing, and pile foundation lifts and squeezes into difficulty and also increases with it.On the other hand, single-pile foundation horizontal rigidity is relatively
It is low, the requirement for meeting blower to horizontal distortion is difficult in the poor place of sea bed geological conditions.Domestic neritic area surface layer is mostly
The application of mud or muck soil, single-pile foundation is very limited.
2, more pile leader body panel bases: the structure similar with offshore oil jacket platform is used, is first put in sea bed
The steel structure platform being made of steel member is set, steel-pipe pile is then squeezed by the spud leg casing on platform.More pile leader framves
Basis is to adapt to Wind turbines single-machine capacity and constantly increase a kind of basis knot used to soil rigidity with high requirement
Structure, its advantage is that horizontal rigidity is big, the disadvantage is that later period operation and maintenance cost is high due to causing to involve great expense using steel construction.Separately
On the one hand, by the way of due to being driven piles after first placing jacket, before piling, jacket is difficult to essence by wave current effect
Really leveling positioning, it is difficult to meet the stringent flatness requirement that blower tall and slender structure lifting in top proposes basis, need to use
Additional connector carries out secondary leveling, increases the difficulty and structural complexity of construction.
3, High-Rise Pile Cap Foundation: the basis uses more steel-pipe piles, and uses a biggish reinforced concrete pile cap, will
Steel-pipe pile and the changeover portion of superstructure connect.This structure level rigidity is big, and crashworthiness is good, changeover portion leveling side
Just.But this structure due to arrangement of pile foundation in smaller range, foundation pile stress is larger.Cushion cap area is larger simultaneously, works as cushion cap
It needs to bear biggish Wave Load when elevation is lower.
Above-mentioned three kinds of offshore wind turbine foundations, have the shortcomings that different, do not adapt to the quick hair of Wind turbines manufacturing technology
Exhibition.Difficulty of construction is big for above-mentioned technology, structure is complicated, structural instability, material utilization amount are big and cannot absorb making an uproar for blower generation
Sound is greatly limited.
Summary of the invention
The object of the present invention is to provide a kind of neritic area blower foundations using bladder-type magnetic rheology elastic body, to solve
Difficulty of construction is big for existing offshore wind turbine foundation, structure is complicated, structural instability, material utilization amount are big and cannot absorb blower production
The problem of raw noise.
The present invention provides a kind of neritic area blower foundation using bladder-type magnetic rheology elastic body, comprising: back taper bottom
Seat, bottom plate, abutment wall and fixing seat；The bottom plate is fixed on the upper surface of the back taper pedestal, and the abutment wall is tubular construction
And it is disposed around the edge of the upper surface of bottom plate, the fixing seat is set in abutment wall and is fixed on the center of bottom plate, fixing seat packet
The inner cylinder being arranged concentrically and outer cylinder are included, bladder-type magnetic rheology elastic body, institute are filled between the inner cylinder and outer cylinder
Winding electromagnetic coil outside bladder-type magnetic rheology elastic body is stated, the diameter of inner cylinder is matched with blower fan tower barrel for installing blower tower
Cylinder, is provided with multiple floors, the space in abutment wall is divided into multiple chambers by floor between the outer cylinder and abutment wall of the fixing seat
Body, cavity is interior to be filled with external loads；
The magnetic rheology elastic body each component according to weight ratio include: 100~150 parts of rubber matrix, magnetic-particle 600~
700 parts, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, 130~220 parts of fill material, wherein fill material includes plasticising
20~30 parts of agent, 30~50 parts of dispersing agent, 50~60 parts of expanding material, 10~20 parts of reinforcing agent, physics silica gel pore former 10~30
Part, 10~30 parts of waterproofing agent；The reinforcing agent is fume colloidal silica.
In the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body, the magnetic-particle is selected
Micron order carbonyl iron dust and silicon-steel powder, the two ratio are 25:1, select this magnetic-particle in the premise for guaranteeing saturation magnetization
Under improve magnetic permeability, reduce eddy-current loss.
In the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body, the vulcanizing agent be selenium,
Tellurium, peroxide or sulphur, vulcanization accelerator are alkali metal oxide.
In the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body, the plasticizer is diformazan
Base silicone oil, the dispersing agent are methyl anyl alcohol or polyurethane, and the expanding material is carboxylation carbon nanotube or maleic anhydride, the object
Managing silica gel pore former is YQ-100Y, YQ-505Y or ES100W, and waterproofing agent is fatty acid metal salts.
In the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body, the back taper pedestal is
Conical structure, the bottom plate are cylindrical structure, and the abutment wall is cylindrical shape, and back taper pedestal, bottom plate, abutment wall and floor are all
For steel-concrete combined structure.
In the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body, the external loads are stone
Block.
In the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body, the electromagnetic coil passes through
The connection of the generator of conducting wire and blower.
A kind of neritic area blower foundation using bladder-type magnetic rheology elastic body of the invention at least has following benefit
Effect:
1, cylindrical foundation Practical Condition is wide, is suitable for sand, cohesive soil or muck soil.Save steel using amount, construction technology
Simply, can land integrative installation technology, then check destination, be not necessarily to a large amount of lifting machines, save installation cost；In mud
It is in place by self weight and negative pressure method for sinking, that is, mountable in matter soil, it can be by breaking ground measure sinking just in more closely knit sand
Position, speed of application is fast, and construction speed is not by environmental influence.
2, abutment wall and fixing seat are connected by floor, not only can guarantee the stabilization of structure, moreover it is possible to form multiple independent chambers
Body uniformly places external loads in cavity and is conducive to base fixed.
3, in the inner cylinder of fixing seat and outer cylinder filling magnetic rheology elastic body and in its external winding electromagnetic coil, coil
It is connected by the generator of conducting wire and blower, applies magnetic field to magnetorheological fluid elastomer after energization, adjust magnetorheological fluid elastomer
Damping and rigidity, to increase the stability of blower, moreover it is possible to reduce blower generation noise can reduce fan operation during
The noise of generation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body；
Fig. 2 is the top view of the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body；
Fig. 3 is the cross-sectional view of the neritic area blower foundation of the invention using bladder-type magnetic rheology elastic body.
Specific embodiment
With reference to the accompanying drawings and detailed description to a kind of shallow sea using bladder-type magnetic rheology elastic body of the invention
Regional blower foundation is described in further detail.
As shown, a kind of neritic area blower foundation using bladder-type magnetic rheology elastic body of the invention, comprising: fall
Sloped footing 1, bottom plate 2, abutment wall 3 and fixing seat 4.The bottom plate 2 is fixed on the upper surface of the back taper pedestal 1, the side
Wall 3 be tubular construction and be disposed around bottom plate 2 upper surface edge, the fixing seat 4 is set in abutment wall 3 and is fixed on bottom plate
2 center.Fixing seat 4 includes the inner cylinder 41 being arranged concentrically and outer cylinder 42, is filled out between the inner cylinder 41 and outer cylinder 42
Filled with bladder-type magnetic rheology elastic body 6,6 outside winding electromagnetic coil 8 of bladder-type magnetic rheology elastic body, the diameter of inner cylinder 41 with
Blower fan tower barrel is matched for installing blower fan tower barrel.Multiple floors 5 are provided between the outer cylinder 42 and abutment wall 3 of the fixing seat 4,
Space in abutment wall 3 is divided into multiple cavities 7 by floor 5, is filled with external loads in cavity 7.
When it is implemented, 6 each component of bladder-type magnetic rheology elastic body according to weight ratio include: rubber matrix 100~
150 parts, 600~700 parts of magnetic-particle, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, 130~220 parts of fill material,
Wherein fill material include 20~30 parts of plasticizer, 30~50 parts of dispersing agent, 50~60 parts of expanding material, 10~20 parts of reinforcing agent,
10~30 parts of physics silica gel pore former, 10~30 parts of waterproofing agent；The reinforcing agent is fume colloidal silica.
When it is implemented, the magnetic-particle selects micron order carbonyl iron dust and silicon-steel powder, the two ratio is 25:1, is selected
This magnetic-particle improves magnetic permeability under the premise of guaranteeing saturation magnetization, reduces eddy-current loss.
When it is implemented, the vulcanizing agent is selenium, tellurium, peroxide or sulphur, vulcanization accelerator is alkali metal oxide.
When it is implemented, the plasticizer is dimethicone, the dispersing agent is methyl anyl alcohol or polyurethane, the increasing
Holding agent is carboxylation carbon nanotube or maleic anhydride, and the physics silica gel pore former is YQ-100Y, YQ-505Y or ES100W, waterproof
Agent is fatty acid metal salts.
When it is implemented, the back taper pedestal 1 is conical structure, the bottom plate 2 is cylindrical structure, the abutment wall
3 be cylindrical shape, and back taper pedestal 1, bottom plate 2, abutment wall 3 and floor 5 are all steel-concrete combined structure, i.e., external is steel construction,
Internal fill concrete.The external loads are stone.
When it is implemented, the electromagnetic coil 8 is connected by the generator of conducting wire and blower.By wind turbine power generation, aweather
Electromagnetic coil 8 in machine basis is powered, and applies magnetic field to bladder-type magnetic rheology elastic body 7, to change entire blower foundation
Rigidity and damping.Wind-force is bigger, and the electric current of generation is bigger, so that the magnetic flux generated is bigger, blower foundation rigidity is bigger, blower
It is more stable.The adverse circumstances such as high wind can be resisted using this blower foundation, it is adaptable.
When it is implemented, bladder-type magnetic rheology elastic body is prepared with the following method:
Step 1: weighing by following component proportion: 100~150 parts of rubber matrix, 600~700 parts of magnetic-particle, vulcanizing agent
16~25 parts, 4~5 parts of vulcanization accelerator, 130~220 parts of fill material, wherein fill material include 20~30 parts of plasticizer,
30~50 parts of dispersing agent, 50~60 parts of expanding material, 10~20 parts of reinforcing agent, 10~30 parts of physics silica gel pore former, waterproofing agent 10
~30 parts；
Step 2: rubber matrix, magnetic-particle and all fill materials being put into rubber mixing machine, mechanical uniform stirring 20
Minute, then it is placed in deaeration in vacuum barrel at 80 DEG C, then be injected into aluminium-making mould；
Step 3: vulcanizing agent and vulcanization accelerator being poured into mold and vulcanized 20 minutes at 150 DEG C, is applied at the same time
Magnetic induction intensity is that the magnetic field 0.4T prepares anisotropic bladder-type magnetic rheology elastic body.
Offshore wind turbine foundation construction is simple of the invention, project amount is small, stable structure, saves steel using amount, has saved peace
Dress up this.Using back taper pedestal, back taper pedestal and bottom plate sunk to by self weight and negative pressure method for sinking marine in mud
Matter soil, i.e., mountable in place, speed of application is fast, and construction speed is not by environmental influence.And it joined the magnetorheological bullet of bladder-type
Property body, to coil power supply after to elastomer apply magnetic field, can adjust bladder-type magnetic rheology elastic body damping and rigidity, with increase
The stability of blower can also absorb the noise of blower generation to have the function that noise abatement.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of neritic area blower foundation using bladder-type magnetic rheology elastic body characterized by comprising back taper bottom
Seat, bottom plate, abutment wall and fixing seat；The bottom plate is fixed on the upper surface of the back taper pedestal, and the abutment wall is tubular construction
And it is disposed around the edge of the upper surface of bottom plate, the fixing seat is set in abutment wall and is fixed on the center of bottom plate, fixing seat packet
The inner cylinder being arranged concentrically and outer cylinder are included, bladder-type magnetic rheology elastic body, institute are filled between the inner cylinder and outer cylinder
Winding electromagnetic coil outside bladder-type magnetic rheology elastic body is stated, the diameter of inner cylinder is matched with blower fan tower barrel for installing blower tower
Cylinder, is provided with multiple floors, the space in abutment wall is divided into multiple chambers by floor between the outer cylinder and abutment wall of the fixing seat
Body, cavity is interior to be filled with external loads；
The magnetic rheology elastic body each component includes: 100~150 parts of rubber matrix, magnetic-particle 600~700 according to weight ratio
Part, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, 130~220 parts of fill material, wherein fill material includes plasticizer
20~30 parts, 30~50 parts of dispersing agent, 50~60 parts of expanding material, 10~20 parts of reinforcing agent, 10~30 parts of physics silica gel pore former,
10~30 parts of waterproofing agent；The reinforcing agent is fume colloidal silica.
2. applying the neritic area blower foundation of bladder-type magnetic rheology elastic body as described in claim 1, which is characterized in that institute
It states magnetic-particle and selects micron order carbonyl iron dust and silicon-steel powder, the two ratio is 25:1, this magnetic-particle is selected to guarantee to be saturated
Magnetic permeability is improved under the premise of the intensity of magnetization, reduces eddy-current loss.
3. applying the neritic area blower foundation of bladder-type magnetic rheology elastic body as described in claim 1, which is characterized in that institute
Stating vulcanizing agent is selenium, tellurium, peroxide or sulphur, and vulcanization accelerator is alkali metal oxide.
4. applying the neritic area blower foundation of bladder-type magnetic rheology elastic body as described in claim 1, which is characterized in that institute
State plasticizer be dimethicone, the dispersing agent be methyl anyl alcohol or polyurethane, the expanding material be carboxylation carbon nanotube or
Maleic anhydride, the physics silica gel pore former are YQ-100Y, YQ-505Y or ES100W, and waterproofing agent is fatty acid metal salts.
5. applying the neritic area blower foundation of bladder-type magnetic rheology elastic body as described in claim 1, which is characterized in that institute
Stating back taper pedestal is conical structure, and the bottom plate is cylindrical structure, and the abutment wall is cylindrical shape, back taper pedestal, bottom
Plate, abutment wall and floor are all steel-concrete combined structure.
6. applying the neritic area blower foundation of bladder-type magnetic rheology elastic body as described in claim 1, which is characterized in that institute
Stating external loads is stone.
7. applying the neritic area blower foundation of bladder-type magnetic rheology elastic body as described in claim 1, which is characterized in that institute
Electromagnetic coil is stated to connect by the generator of conducting wire and blower.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439033A (en) * | 2022-03-08 | 2022-05-06 | 中国石油大学(华东) | Reinforced concrete self-sinking umbrella-shaped mudflat wind power foundation and installation method thereof |
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| CN208870071U (en) * | 2018-08-30 | 2019-05-17 | 天津大学 | A kind of assembly gravity type offshore wind basis |
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Application publication date: 20191018 |