KR101659783B1 - Hybrid type concrete foundation of offshore wind turbine using composite of concrete and steel sleevee and fabrication method thereof - Google Patents
Hybrid type concrete foundation of offshore wind turbine using composite of concrete and steel sleevee and fabrication method thereof Download PDFInfo
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- KR101659783B1 KR101659783B1 KR1020150079665A KR20150079665A KR101659783B1 KR 101659783 B1 KR101659783 B1 KR 101659783B1 KR 1020150079665 A KR1020150079665 A KR 1020150079665A KR 20150079665 A KR20150079665 A KR 20150079665A KR 101659783 B1 KR101659783 B1 KR 101659783B1
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- steel sleeve
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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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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/91—Mounting on supporting structures or systems on a stationary structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/95—Mounting on supporting structures or systems offshore
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
Abstract
Description
The present invention relates to an offshore wind power concrete foundation, and more particularly, to a hybrid type offshore wind power generation concrete foundation structure composed of a concrete structure and a steel pipe pile, Method and an installation method.
Today, due to the excessive use of fossil fuels, environmental pollution has become more serious and there is a growing interest in environmentally friendly renewable green energy. These renewable green energy have natural constraints and are less economical than fossil energy. However, they are attracting attention as alternative energy because they are environmentally friendly and can solve fossil energy depletion and environmental pollution problems. Among these new energy sources, wind power generation, which is a representative green energy, is already in operation in domestic as well as overseas. Due to the enlargement of wind turbine and expansion of the complex due to expansion of power generation capacity, it is transformed from onshore wind power generation to offshore wind power generation .
The offshore wind power generation system has a relatively high portion of the project cost for the offshore structure than the turbine, so that the construction and installation cost of the foundation structure accounts for at least 30% of the total cost and 50% when the depth is deepened.
The existing foundation of existing offshore wind power generation system has been mainly applied with steel structure, but the manufacturing cost is rapidly increased due to the cost increase of steel material, so it is not easy to secure economical efficiency by applying it to a large capacity turbine and deep water depth have.
Meanwhile, a gravity type concrete foundation structure capable of securing structural stability and economical efficiency has been developed and applied to solve the disadvantages of the steel foundation structure, but the existing gravity type concrete foundation structure is large and the weight of the main body is excessive The cost of transportation and installation can be rather increased and there is a disadvantage that it is not suitable for the terrain where soft ground settlement occurs.
Therefore, there is an urgent need for development and application of economical offshore wind turbine concrete foundation structures by a new type that can overcome the shortcomings of gravity type concrete foundation structures and steel foundation structures of existing offshore wind power generation systems.
SUMMARY OF THE INVENTION The present invention has been made in view of the technical background as described above and it is an object of the present invention to solve the problems of the background art described above, It can not be said to have been publicly known to the general public before.
The present invention has been made in order to solve the problems inherent in the conventional offshore wind turbine foundation structure as described above, and it is an object of the present invention to provide a concrete structure and a composite structure of a steel pipe pile, The present invention provides an economical new type offshore wind power generation concrete foundation structure and a manufacturing method thereof.
Another object of the present invention is to provide a new type of offshore wind turbine concrete foundation structure optimized for durability and workability by increasing the resistance against deformation, vibration, fatigue strength and corrosion by the composite structure of concrete structure and steel pipe pile and manufacturing method thereof .
Another object of the present invention is to provide a concrete structure and a steel sleeve as a connector for reinforcing a dissimilar material composite structure of a steel pipe pile as means for accomplishing the above objects.
It is still another object of the present invention to provide a method of installing a new type offshore wind power concrete foundation structure to achieve the above objects.
In order to achieve the above object, the present invention provides an offshore wind turbine concrete foundation structure, which is installed on a seabed to support an upper structure made up of an offshore wind turbine nacelle, a blade and a tower, A concrete structure having a plurality of shaft holes arranged to be arranged in a longitudinal direction; A steel pipe pile inserted into the shaft hole to support the concrete structure in a state fixed to the seabed ground and installed on the seabed ground; And a dissimilar material composite reinforcing connector member interposed between the shaft hole and the steel pipe pile to form a composite structure of the concrete structure and the steel pipe pile.
According to the present invention, the connector member comprises a steel sleeve, which is respectively installed in the shaft hole of the concrete structure so as to allow penetration of the steel pipe pile, and a grouting material filled between the steel sleeve and the steel pipe pile.
According to another aspect of the present invention, the connector member includes a steel sleeve installed in the shaft hole of the concrete structure so as to allow the steel pipe pile to be inserted therethrough, a core member provided in the concrete structure to connect the respective steel sleeves, And a grouting material filled between the steel sleeve and the steel pipe pile.
The steel sleeve includes a shear connection member having a plurality of unit studs formed to protrude from the outer circumferential surface of the cylindrical body and spaced apart from each other by a predetermined distance so as to be inserted into the concrete structure and arranged in a radial multi-layered structure.
In addition, the steel sleeve is provided with a plurality of shear connection members protruded so as to be arranged in a continuous strip shape on the inner circumferential surface so as to serve as an anti-activity wall of the concrete structure.
According to another aspect of the present invention, the concrete structure has a plurality of leg flanges projected radially to be evenly spaced on the outer periphery of the block-shaped body, and a shaft hole inserted into the leg flange to penetrate the steel pipe pile Configuration.
The steel sleeve having the above-described construction according to the present invention may be provided as a separate unit unit component and may be provided as a connector member for connecting a steel pipe-pile composite structure of an offshore wind power generation concrete foundation structure according to the present invention.
According to the present invention, the concrete structure and the steel sleeve are formed of a dissimilar material composite structure through a precast manufacturing process.
It is preferable that a stiffener such as a reinforcing bar is provided between the studs in the transverse direction and the longitudinal direction around the steel sleeve.
According to another aspect of the present invention, there is provided a method of manufacturing a concrete structure for an offshore wind power concrete concrete structure, the method comprising the steps of: forming a body of the concrete structure and installing a mold on the outer periphery of the concrete structure; Installing the steel sleeve, installing a reinforcement between the formwork and the steel sleeve, pouring concrete between the outer periphery of the concrete structure, the formwork and the steel sleeve, and removing the formwork .
In order to accomplish the above object, the present invention provides a method of installing a marine wind power concrete foundation structure, comprising the steps of: conveying a concrete structure composed of a steel sleeve by a precast manufacturing process to a sea floor, ; Placing the steel pipe pile coaxially aligned and inserted into the shaft hole of the steel sleeve provided in the concrete structure, and installing the pile in the sea bed in parallel with the piling and drilling operations; Performing a joint operation between the steel pipe pile and the reinforcing bar network; Placing a grouting material between the steel sleeve of the concrete structure and the steel pipe pile; And cutting and removing the upper projecting portion of the steel pipe pile.
According to another aspect of the present invention, there is provided a method of installing an offshore wind power concrete foundation structure according to the present invention, comprising the steps of: installing and excavating a steel pipe pile on a seabed ground at an offshore wind power generator installation location; Conveying the concrete structure having the steel sleeve synthesized by the precast manufacturing process to the sea; Placing a concrete structure on a seabed so that a steel pipe pile is coaxially aligned and inserted into a steel sleeve shaft hole of the concrete structure; Performing a joint operation between the steel pipe pile and the reinforcing bar network; Placing a grouting material between the steel sleeve of the concrete structure and the steel pipe pile; And cutting and removing the upper projecting portion of the steel pipe pile.
According to the present invention, the following effects can be obtained.
Firstly, it is possible to provide a very economical new type offshore wind turbine concrete foundation structure because the production period and cost can be greatly reduced by the composite structure of the concrete structure and the steel pipe pile.
Second, it is possible to provide a new type offshore wind turbine concrete foundation structure optimized to improve stability and durability by increasing the resistance against deformation, vibration, fatigue strength and corrosion by the composite structure of concrete structure and steel pipe pile.
Third, it is possible to provide a new type offshore wind power concrete foundation structure that can improve the accuracy of vertical control in the construction process by reducing the construction period and improving the construction efficiency by the composite structure of the concrete structure and the steel pipe pile have.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view schematically showing a basic structure for offshore wind power concrete according to the present invention. FIG.
BACKGROUND OF THE
BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a concrete structure for a wind power generator, and more particularly,
FIG. 4 is a schematic plan view illustrating an essential portion of a basic structure for a concrete offshore wind power generator according to the present invention shown in FIGS. 1 and 2. FIG.
FIG. 5 is a partially cutaway perspective view schematically showing a steel sleeve installed as a connector for dissimilar composite reinforcement of a basic structure for offshore wind power generation concrete according to the present invention shown in FIGS. 1 to 4. FIG.
FIG. 6 is a schematic side view showing an essential part of a basic structure of an offshore wind power generation concrete according to the present invention, which is enlarged; FIG.
FIG. 7 is a plan view schematically illustrating a manufacturing process of a basic structure for offshore wind power generation concrete according to the present invention, which is extracted from a main part according to a process sequence; FIG.
FIG. 8 is a schematic perspective view illustrating a main part of a marine wind power generation concrete foundation structure according to another embodiment of the present invention. FIG.
FIG. 9 is a schematic perspective view illustrating a concrete type of a concrete structure base of an offshore wind power generation concrete foundation structure according to the present invention.
FIGS. 10A to 10F are schematic flowcharts for explaining an installation method of a basic structure of an offshore wind power generation concrete according to the present invention by a post-piling method. FIG.
FIG. 11 is a schematic construction flowchart illustrating a method of installing a basic structure of an offshore wind power generation concrete according to the present invention by a pre-piling method. FIG.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a basic structure for an offshore wind power concrete according to the present invention will be described in detail with reference to the accompanying drawings. The following description and accompanying drawings are for the purpose of understanding the technical structure and operation of the present invention, and parts that can be easily implemented by those skilled in the art can be omitted.
1 and 2, a marine wind power
The
A shaft hole is formed in each of the
The
In the present invention, the
According to another aspect of the present invention, the
The
3 to 6, the
The
The
The
The
Accordingly, the
That is, the structure of the
It is preferable that the
The
The
5,
According to an aspect of the present invention, reinforcing
The
Therefore, it is preferable that the
According to the present invention, the
Referring to FIG. 7A, a steel mold 110D is installed to form a flange on the outer periphery of a
Then, a
In the next step, as shown in Fig. 7C, reinforcing
In the next step, as shown in FIGS. 7D and 7E, the concrete 110C is cured by curing and then the
That is, in order to construct the offshore wind power generation
FIG. 8 is a schematic perspective view illustrating a concrete structure and a steel sleeve according to another embodiment of the present invention.
According to the embodiment illustrated in FIG. 8, the
That is, the
FIGS. 10 and 11 are flowcharts for explaining a post-piling method and a pre-piling method for installing an offshore wind power generation concrete foundation structure according to the present invention, respectively.
Referring to FIG. 10, the method of installing the offshore wind power generation concrete foundation structure according to the present invention is as follows. First, referring to FIG. 10 (a), a
10 (b), the
Next, referring to FIG. 10C, a joint operation between the steel bar N and the
Referring to FIG. 10D, a grouting material is laid between the
Referring to FIGS. 10 (e) and 10 (f), the upper projecting portion of the
Referring to FIG. 11, in the method of installing the basic structure for offshore wind power concrete according to the present invention, the
In the next step, the
The
In the next step, the joining operation between the reinforcing net N and the
Next, a grouting material is laid between the
In the next construction step, the upper protrusion of the
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that various modifications may be made, and such modifications are intended to fall within the scope of the appended claims.
100: Offshore wind power concrete foundation structure
110: Concrete structure
110B: Base portion of the concrete structure
110C: cone hollow part of concrete structure
110R-1: Cylinder hollow part of concrete structure
110R-2: Ring portion of concrete structure
111: Leg flange
120: Steel pipe pile
130: connector member
131: Steel sleeve
131B: weld bead (shere key)
131S: Stud (shear connector)
132: Grouting material
133: Stiffener (rebar)
Claims (23)
A concrete structure having a plurality of shaft holes formed so as to be evenly spaced on the outer periphery of the block-shaped body;
A steel sleeve provided in a state of being in contact with the shaft hole by a precast manufacturing process to form the concrete structure and the dissimilar material composite structure;
A steel pipe pile inserted into the steel sleeve in such a manner that the concrete structure is fixed to a seabed ground, And
A grouting material disposed between the steel sleeve and the steel pipe pile at a bottom of the steel pipe so as to form a dissimilar material composite reinforcing connector member for forming the composite structure of the concrete structure, the steel sleeve and the steel pipe pile; Wherein the foundation structure comprises at least one of the following.
Wherein the steel sleeve comprises a unit unit connected to each other by an arc-shaped steel support plate installed as a core member in the concrete structure.
Wherein the steel sleeve comprises a shear connector made of a plurality of unit studs formed to protrude from an outer circumferential surface of a cylindrical body and arranged in a radial multi-layer arrangement structure so as to be inserted into the concrete structure, Foundation structure.
Wherein the steel sleeve is provided with a plurality of shear connectors formed so as to be arranged in a continuous strip shape on the inner circumferential surface so as to serve as an anti-activity wall of the concrete structure.
Wherein a reinforcing material is provided between the studs in the transverse and longitudinal directions around the steel sleeve.
Wherein the concrete structure has a plurality of leg flanges projected radially to be evenly spaced on the outer periphery of the block-shaped body, and a shaft hole inserted into the leg flange so as to penetrate the steel pipe pile, structure.
And a plurality of studs protruding from the outer circumferential surface of the cylindrical body in a radial multi-layer arrangement structure and inserted into the concrete structure, as a shear connection member,
Wherein the cylindrical body is formed as a unit structure unit connected by a steel support plate. ≪ RTI ID = 0.0 > 20. < / RTI >
Wherein a plurality of shear connectors are arranged on the inner circumferential surface of the cylindrical body so as to be arranged in a continuous strip shape protruding to act as an anti-activity wall of the concrete structure. .
A steel sleeve is installed so as to be inscribed in a central shaft hole of a plurality of leg flanges provided to radially protrude from the outer periphery of the concrete block body during a precast production process,
Wherein the steel sleeve is formed as a unit structure connected in multiple arrangements by at least two steel support plates and the steel support plate is installed as a core material in a concrete concrete block body. Concrete base of foundation supporting structure.
Wherein the steel sleeve is provided with a shear connector having a plurality of unit studs formed to protrude from the outer circumferential surface of the cylindrical body so as to be spaced apart from the concrete base so as to be set in a state of being infiltrated into the concrete base, Concrete Bases of Base Support Structures for Offshore Wind Power Generation.
Characterized in that the steel sleeve is provided with a plurality of shear keys on the inner circumferential surface to act as an anti-active wall of a steel pile engaged to be inserted into the hollow.
Wherein the shear key comprises a plurality of weld beads protruding from the inner circumferential surface of the steel sleeve so as to be arranged in a continuous strip shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150079665A KR101659783B1 (en) | 2015-06-05 | 2015-06-05 | Hybrid type concrete foundation of offshore wind turbine using composite of concrete and steel sleevee and fabrication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150079665A KR101659783B1 (en) | 2015-06-05 | 2015-06-05 | Hybrid type concrete foundation of offshore wind turbine using composite of concrete and steel sleevee and fabrication method thereof |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160119811A Division KR20160143599A (en) | 2016-09-20 | 2016-09-20 | Hybrid type concrete foundation of offshore wind turbine using composite of concrete and steel sleevee and fabrication method thereof |
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| KR101659783B1 true KR101659783B1 (en) | 2016-09-26 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013212A (en) * | 2016-07-25 | 2016-10-12 | 福建永福电力设计股份有限公司 | Offshore wind turbine tower foundation structure and installation method |
| CN106760870A (en) * | 2016-12-12 | 2017-05-31 | 国网山东省电力公司电力科学研究院 | A kind of power transmission tower column foot anti-corrosion method |
| CN108547312A (en) * | 2018-05-30 | 2018-09-18 | 江苏融宝达新能源科技有限公司 | The blower foundation of steel truss structure |
| CN109295994A (en) * | 2018-11-06 | 2019-02-01 | 重庆大学 | A kind of full assembled composite structure wind-power tower basis |
| CN112961967A (en) * | 2021-02-03 | 2021-06-15 | 四川大学 | Single-side cold extrusion fatigue strengthening device and method for orifice of open pore structure |
| CN113026796A (en) * | 2021-03-17 | 2021-06-25 | 上海久坚加固科技股份有限公司 | Foundation reinforcing structure and method for foundation of wind power generation tower |
| KR20220043498A (en) | 2020-09-29 | 2022-04-05 | 현대건설주식회사 | Pre-filing construction apparatus and construction method of offshore jacket foundation structure |
| US11427344B2 (en) | 2019-03-01 | 2022-08-30 | Pratt & Whitney Canada Corp. | Cooling system configurations for an aircraft having hybrid-electric propulsion system |
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| CN115467361A (en) * | 2022-09-14 | 2022-12-13 | 中国电建集团福建省电力勘测设计院有限公司 | Offshore overhead transmission line foundation structure and construction method thereof |
| US11535392B2 (en) | 2019-03-18 | 2022-12-27 | Pratt & Whitney Canada Corp. | Architectures for hybrid-electric propulsion |
| US11574548B2 (en) | 2019-04-25 | 2023-02-07 | Pratt & Whitney Canada Corp. | Aircraft degraded operation ceiling increase using electric power boost |
| US11628942B2 (en) | 2019-03-01 | 2023-04-18 | Pratt & Whitney Canada Corp. | Torque ripple control for an aircraft power train |
| US11667391B2 (en) | 2019-08-26 | 2023-06-06 | Pratt & Whitney Canada Corp. | Dual engine hybrid-electric aircraft |
| US11697505B2 (en) | 2019-03-01 | 2023-07-11 | Pratt & Whitney Canada Corp. | Distributed propulsion configurations for aircraft having mixed drive systems |
| US11732639B2 (en) | 2019-03-01 | 2023-08-22 | Pratt & Whitney Canada Corp. | Mechanical disconnects for parallel power lanes in hybrid electric propulsion systems |
| US11738881B2 (en) | 2019-10-21 | 2023-08-29 | Hamilton Sundstrand Corporation | Auxiliary power unit systems |
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| CN106013212A (en) * | 2016-07-25 | 2016-10-12 | 福建永福电力设计股份有限公司 | Offshore wind turbine tower foundation structure and installation method |
| CN106760870A (en) * | 2016-12-12 | 2017-05-31 | 国网山东省电力公司电力科学研究院 | A kind of power transmission tower column foot anti-corrosion method |
| CN106760870B (en) * | 2016-12-12 | 2019-04-09 | 国网山东省电力公司电力科学研究院 | A kind of power transmission tower column foot anti-corrosion method |
| CN108547312A (en) * | 2018-05-30 | 2018-09-18 | 江苏融宝达新能源科技有限公司 | The blower foundation of steel truss structure |
| CN109295994A (en) * | 2018-11-06 | 2019-02-01 | 重庆大学 | A kind of full assembled composite structure wind-power tower basis |
| CN109295994B (en) * | 2018-11-06 | 2021-05-04 | 重庆大学 | Full-assembly type wind power tower cylinder foundation with combined structure |
| US11628942B2 (en) | 2019-03-01 | 2023-04-18 | Pratt & Whitney Canada Corp. | Torque ripple control for an aircraft power train |
| US11639228B2 (en) | 2019-03-01 | 2023-05-02 | Pratt & Whitney Canada Corp. | Engine layouts and associated compartmentalization for aircraft having hybrid-electric propulsion system |
| US11732639B2 (en) | 2019-03-01 | 2023-08-22 | Pratt & Whitney Canada Corp. | Mechanical disconnects for parallel power lanes in hybrid electric propulsion systems |
| US11427344B2 (en) | 2019-03-01 | 2022-08-30 | Pratt & Whitney Canada Corp. | Cooling system configurations for an aircraft having hybrid-electric propulsion system |
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| US11574548B2 (en) | 2019-04-25 | 2023-02-07 | Pratt & Whitney Canada Corp. | Aircraft degraded operation ceiling increase using electric power boost |
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