KR101865511B1 - One body type jacket support structure for offshore wind turbine - Google Patents
One body type jacket support structure for offshore wind turbine Download PDFInfo
- Publication number
- KR101865511B1 KR101865511B1 KR1020170125870A KR20170125870A KR101865511B1 KR 101865511 B1 KR101865511 B1 KR 101865511B1 KR 1020170125870 A KR1020170125870 A KR 1020170125870A KR 20170125870 A KR20170125870 A KR 20170125870A KR 101865511 B1 KR101865511 B1 KR 101865511B1
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- Prior art keywords
- jacket
- integral
- leg
- offshore wind
- file
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
- E02B17/022—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform adapted to travel on the bottom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/006—Platforms with supporting legs with lattice style supporting legs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
Abstract
Description
The present invention relates to an integral offshore wind jacket support structure. And more particularly, to an offshore wind jacket supporting structure in which an upper jacket portion, a lower jacket portion, and a flanging piece are integrally formed.
In general, marine structures are various structures that can be installed on the sea with bases fixed on the seabed. Representative examples are marine oil drilling platforms and offshore wind power generators.
And the offshore structure includes an offshore wind force supporting structure fixed to the seabed, and these offshore structures and offshore wind support structures are also used in the same concept, so that the offshore wind force supporting structure described below is based on this view .
The offshore wind force supporting structure generally comprises a lower structure fixed to the sea bed to form a foundation structure, a deck for installing the upper structure on the upper side of the lower structure, and an upper structure installed on the deck.
The substructure can be divided into monopile type, tripod type, dolphin type, jacket type, floating type according to its shape.
Among them, the dolphin type and the jacket type have a relatively stable structure with respect to the wave force acting horizontally on the lower structure, which corresponds to the high preference type.
An offshore wind power support structure with a general jacket-type substructure has a structure in which a leg composed of a steel pipe is placed on the sea floor, a brace member is provided between the legs and the leg to form a three-dimensional truss structure, It is a form to be installed.
In the conventional two-stage detachable support structure, when the jacket type lower structure (lower jacket portion) is seated on the sea floor and four jacket files are installed in the jacket leg, when the jacket type lower structure is not leveled, Is installed obliquely. As a result, the entire horizontal offshore wind supporting structure including the jacketed substructure is subjected to a horizontal load in addition to the gravity load unlike the design load, which causes the offshore wind supporting structure to maintain the unstable overall installation state.
In a conventional offshore wind power support structure, a transition piece is defined as a tower foundation installed on the upper part of a deck. Accordingly, it is general to install the upper deck leg directly on the jacket file on the lower side of the deck Attempts have been made to maintain the deck level by installing a transition piece between the bar, jacket file and the top of the deck.
As a result, if the four jacket files are not leveled on the jacket leg, the deck can not be leveled, so that the entire offshore wind supporting structure including the jacketed substructure becomes inclined. In other words, the method of connecting the transition piece with the tower after aligning the level with the tower on top of the deck may cause serious accidents as well as minor accidents in the operation of the corresponding offshore wind power support structure.
In addition, conventional jacket type substructure uses grouting method for binding of jacket legs and jacket files on the sea floor and binding of jacket files and gypsum under the sea floor. In such a grouting method, , It is possible to work only when the marine condition is good and there is a possibility that the marine pollution and related civil petition related to the marine pollution accompanied by the marine pollution will occur. Therefore, the construction period of the jacketed substructure may be increased.
FIG. 1 shows a construction photograph of a conventional two-stage separated offshore wind
2 is a photograph showing a state where the
Fig. 3 is a photograph showing the
FIG. 4A is a photograph showing installation of the
As shown in FIGS. 4A and 4B, since the
As a result, in the conventional two-stage separated offshore wind
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a two- , And to provide an integrated offshore wind jacket supporting structure capable of reducing the shortening of construction time and construction cost, securing the soundness of the structure and quality of painting, and reducing the risk of accident of manpower accident (no need for manpower in connection and painting) .
In addition, according to the embodiment of the present invention, since there is no upper / lower connection portion in the manufacturing process, it is possible to increase the structural safety, and it is unnecessary to manufacture auxiliary marine work facilities other than the jacket. The present invention has been made to solve the above problems.
According to the embodiment of the present invention, it is possible to shorten the loading time because it is integrated in the transportation process, and it is possible to efficiently use the loading space of the transportation barge, thereby enabling mass shipment. In comparison with the existing two- The wind power jacket structure of the present invention can reduce the size of the wind power jacket structure by about 5 days.
In addition, according to the embodiment of the present invention, since the integrated offshore wind jacket supporting structures are collectively installed in the installation process, the installation time can be shortened and the marine condition can be coped with and the marine work for connecting the jacket is unnecessary, Etc.), and it is an object of the present invention to provide an integrated offshore wind jacket supporting structure capable of reducing the number of days of installation by about 30% (about 35 days) compared with the conventional two-stage separation type.
According to an embodiment of the present invention, there is provided an integrated offshore wind jacket supporting structure capable of omitting the grouting operation during the installation process and preventing marine pollution and prolonged construction period accompanying with the existing grouting operation. There is a purpose.
According to an embodiment of the present invention, a foundation plate for maintaining a stable and rigid support state of an offshore wind force supporting structure from a lateral force of a bird, a wave or the like while preventing a sliding phenomenon is provided as a permanent attachment The present invention provides an integrated offshore wind jacket supporting structure capable of functioning as a structure.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.
An object of the present invention is to provide an offshore wind jacket supporting structure comprising: a plurality of integral jacket legs in which a lower jacket leg, an upper jacket leg and a deckleg are manufactured as one unit; A plurality of jacket brace members connected between the plurality of integral jacket legs to form a truss structure; A deck coupled to the inside of a plurality of integral jacket leg tops; And a tower base projecting downwardly from the deck and coupled to one end of the upper end portion and the upper end of the integral jacket leg via a top brace and coupled to one side of the lower end portion and one side of the integral jacket leg via the lower end brace, Wherein the jacket portion, the upper jacket portion, and the transition piece are integrally manufactured and transported to the site so as to be installed as an integral offshore wind jacket supporting structure.
When the integral jacket support structure is mounted on the sea surface, the integrated jacket leg is inserted into the integral jacket leg, and a part of the lower end of the jacket is penetrated into the bottom of the sea bottom to support the integral off- A plurality of jacket files; And a crown plate inserted into the jacket file and positioned at the upper end of the integral jacket leg and welded to integrate the integral jacket leg and the jacket file.
Further, the crown plate has a triangular concave-convex portion on the upper side with respect to the longitudinal direction of the jacket pile, and is welded between the concave-convex portion and the jacket file and between the lower surface of the crown plate and the integral jacket leg, . ≪ / RTI >
In addition, the integrated jacket leg may include a spacer disposed on the inner surface of the integral jacket leg at a predetermined distance from each other in the longitudinal direction so that the jacket file can be maintained at the center.
It further includes a base plate coupled to the lower ends of the plurality of integral jacket legs in such a manner that the lower ends of the plurality of integral jacket legs pass therethrough and having a plurality of intrusion skirts .
The jacket file is installed between the jacket file protruded to the upper portion of the integral jacket leg and the upper end of the integral jacket leg so as to relatively displace the tower base relative to the jacket file, And a vertical degree adjusting means for adjusting the vertical direction.
A mounting portion mounted on a connection portion between the integral jacket leg and the brace member for coupling the integral jacket leg and the brace member and partially surrounding the outer peripheral surface of the integral jacket leg in a circumferential direction; And a bracket connector formed of a socket through which the end of the brace member is inserted.
Compared with the conventional two-stage separated offshore wind jacket supporting structure according to the embodiment of the present invention, an auxiliary facility other than the jacket (platform) is unnecessary, the air shortening and the construction cost are reduced, the structural integrity and the painting quality can be secured It has the effect of reducing the risk of worker accident (no need for connection and painting workforce).
In addition, according to the embodiment of the present invention, since there is no upper / lower connection portion in the manufacturing process, it is possible to increase the structural safety, and it is unnecessary to manufacture auxiliary marine work facilities other than the jacket. Day).
According to the embodiment of the present invention, it is possible to shorten the loading time because it is integrated in the transportation process, and it is possible to efficiently use the loading space of the transportation barge, thereby enabling mass shipment. In comparison with the existing two- About 5 days).
In addition, according to the embodiment of the present invention, since the integrated offshore wind jacket supporting structures are collectively installed in the installation process, the installation time can be shortened and the marine condition can be coped with and the marine work for connecting the jacket is unnecessary, Etc.) is good and the installation days can be reduced by about 30% (taking about 35 days) compared to the existing two-stage separation type.
In addition, according to the embodiment of the present invention, it is possible to omit the grouting operation during the installation process, thereby preventing the marine pollution and the prolonged construction period which have been accompanied by the existing grouting operation.
According to an embodiment of the present invention, a foundation plate for maintaining a stable and rigid support state of an offshore wind force supporting structure from a lateral force of a bird, a wave or the like while preventing a sliding phenomenon is provided as a permanent attachment It has an effect of functioning as a structure.
It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and, together with the description, serve to explain the principles of the invention. And shall not be interpreted.
FIG. 1 is a view showing a construction photograph of a conventional two-stage separated offshore wind jacket supporting structure,
FIG. 2 is a photograph showing a state in which a lower jacket portion and an upper jacket portion of a conventional two-stage separated offshore wind jacket supporting structure are loaded on a transportation barge,
FIG. 3 is a photograph showing a conventional two-stage separable offshore wind jacket supporting structure in which a lower jacket portion and an upper jacket portion are transported by a shipping barge,
FIG. 4A is a photograph showing the installation of the lower jacket portion of the conventional two-stage separated offshore wind jacket supporting structure,
FIG. 4B is a photograph showing installation of the upper jacket portion of the conventional two-stage separated offshore wind jacket supporting structure,
5 is a perspective view of an integrated offshore wind jacket supporting structure according to an embodiment of the present invention,
6 is a partial cross-sectional view of an upper side of an integrated offshore wind jacket supporting structure according to an embodiment of the present invention;
7A is a perspective view of a portion where a crown plate is installed between a jacket file and an integral jacket leg according to an embodiment of the present invention,
FIG. 7B is a sectional view taken along line AA in FIG. 6,
FIG. 8 is a perspective view of an integrated offshore wind jacket supporting structure provided with a foundation plate according to an embodiment of the present invention;
9 is a plan sectional view of a jacket according to an embodiment of the present invention,
10 is a perspective view of a brace connector according to an embodiment of the present invention,
11 is a perspective view of a cross connector according to an embodiment of the present invention,
12A is a perspective view of an integrated offshore wind jacket supporting structure according to an embodiment of the present invention,
FIG. 12B illustrates a step of preparing an integrated offshore wind jacket supporting structure according to an embodiment of the present invention,
12C is a view illustrating a state where an integrated offshore wind jacket supporting structure according to an embodiment of the present invention is loaded on a transportation barge,
12D is a view illustrating a state in which an integrated offshore wind jacket supporting structure according to an embodiment of the present invention is transported through a shipping barge,
FIG. 12E is a view illustrating a state where an integrated offshore wind jacket supporting structure according to an embodiment of the present invention is installed on the sea;
12F is a view showing a state in which a jacket file is inserted into each of the integral jacket legs;
13A is a bottom cross-sectional view when a conventional main jacket file and a pin jacket file are inserted and grouted,
FIG. 13B is a cross-sectional view illustrating a state in which a jacket file is inserted according to an embodiment of the present invention;
14 is a view illustrating a state in which the integral jacket leg and the jacket file are connected through the crown plate according to the embodiment of the present invention,
15 is a view illustrating a state in which the vertical degree is adjusted through the vertical degree adjusting means according to the embodiment of the present invention,
16 is a perspective view of an integrated offshore wind jacket support structure constructed according to an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.
In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.
Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.
The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.
In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.
Hereinafter, the structure and function of the integrated offshore wind
5, the integrated offshore wind
The integrated offshore wind
As shown in FIG. 5, the
In addition, the transition piece is also manufactured in an integrated form when it is manufactured, not in connection with the installation in the field. That is, in the integrated offshore wind
6 is a partial cross-sectional view of an upper part of an integrated offshore wind
The integrated offshore wind
6 and 7A, the
As shown in FIGS. 6 and 7A, the
7B, a plurality of
All the forces generated at the upper portion of the
8 is a perspective view of an integrated offshore wind
At this time, the
The
In other words, the intruding
As a result, it is possible to increase the number of days that can be worked on the basis of the great resistance against the lateral force even at a higher crest compared to when the
In addition, since the offshore wind
9 is a top cross-sectional view of a jacket according to an embodiment of the present invention. 10 is a perspective view of the
9, a
This
In other words, when the
Particularly, in the case where the
For this configuration, in the embodiment, the
On the other hand, the end of the
11 is a perspective view of a cross connector according to an embodiment of the present invention. The
The
Hereinafter, a construction method of the integrated offshore wind
First, an integrated offshore wind
According to the integrated offshore wind
In addition, according to the integrated offshore wind
The at least one integrated offshore wind
Then, the integral offshore wind
According to the embodiment of the present invention, it is possible to shorten the shipping time because it is integrated in the transportation process, and it is possible to efficiently utilize the loading barge of the transportation barge, thereby enabling mass shipment. In comparison with the existing two- About 5 days).
Then, the offshore wind
Then, the
FIG. 13A is a cross-sectional view of the undersurface in the case where the
13A, in the case of installing or constructing the conventional offshore wind
The
14 is a view showing a state in which the
Therefore, according to the embodiment of the present invention, it is possible to omit the grouting operation in the installation process, thereby preventing the marine pollution and the prolonged construction period which have been accompanied by the existing grouting operation.
The
15 is a view showing a state in which the vertical degree is adjusted through the vertical degree adjusting means 70 according to the embodiment of the present invention.
The
The
Therefore, after the
According to the embodiment of the present invention, since the integrated offshore wind
It should be noted that the above-described apparatus and method are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .
1: Conventional offshore wind jacket supporting structure
2: upper jacket part
3: Lower jacket portion
4: Transition piece
5: Securing device
6: Transportation barge
7: Lifting system
8: Offshore Wind Turbine Platform
10: One-piece jacket leg
11: Spacer
20: Brace member
21: Horizontal brace member
22: inclined brace member
23: Brace connection
24:
25: Socket
26: Cross connector
27:
30: Crown plate
31:
32:
40: jacket file
51: Deck
52: Tower foundation
53: upper brace
54: bottom brace
60: base plate
61: Intrusive skirt
62: First aspect
63: second side
70: Verticality adjusting means
71: Hydraulic device
72: first fixing part
73: Second fixing part
74: grip member
100: Integrated offshore wind support structure
Claims (7)
A plurality of integral jacket legs in which the lower jacket legs and upper jacket legs and deck legs are fabricated as one unit;
A plurality of jacket horizontal brace members and a warp brace member connected between the plurality of integral jacket legs to form a truss structure;
A deck coupled to the inside of a plurality of integral jacket leg tops; And
And a tower base coupled to one side of the lower end portion and one side of the integral jacket leg through a lower brace, the lower base portion projecting to the lower side of the deck, the upper base portion being connected to one end of the upper end portion and the upper end of the integral jacket leg,
The lower jacket portion, the upper jacket portion, and the transition piece are integrally manufactured and transported to the site,
A plurality of jacket piles for supporting the integrated offshore wind jacket supporting structure by being inserted into the integral jacket leg and partially penetrating into the seabed ground after the integral jacket legs of the integrated offshore wind jacket supporting structure are seated on the sea surface, ; And
And a crown plate inserted into the jacket file and positioned at the upper end of the integral jacket leg and welded to integrate the integral jacket leg and the jacket file,
Wherein the crown plate is integrally formed with an uneven portion of a triangular structure on an upper side with respect to a longitudinal direction of the jacket pile and is welded between the uneven portion and the jacket file and between the lower surface of the crown plate and the integral jacket leg,
And a spacer disposed on the inner surface of the integral jacket leg at a predetermined distance from each other along the longitudinal direction so that the jacket file can be maintained at the center,
And a base plate coupled to a lower end of the plurality of integral jacket legs in such a manner as to allow the lower ends of the plurality of integral jacket legs to pass therethrough and having a plurality of intrusion skirts provided on a lower end face thereof,
A jacket file protruded to the upper portion of the integral jacket leg after insertion of the jacket file and a jacket file provided between the upper end of the integral jacket leg so as to relatively displace the tower base relative to the jacket file, And adjusting means for adjusting the vertical direction,
A mounting portion mounted on a connection portion between the integral jacket leg and the brace member for coupling the integral jacket leg and the brace member and partially surrounding the outer peripheral surface of the integral jacket leg in a circumferential direction, And a brace connecting hole formed of a socket into which the end of the brace member is inserted.
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KR1020170125870A KR101865511B1 (en) | 2017-09-28 | 2017-09-28 | One body type jacket support structure for offshore wind turbine |
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KR1020170125870A KR101865511B1 (en) | 2017-09-28 | 2017-09-28 | One body type jacket support structure for offshore wind turbine |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200048152A (en) * | 2018-10-29 | 2020-05-08 | 엘티삼보 주식회사 | Ground improvement method for offshore jacket structure construction and ground improvement method for offshore pile construction |
KR102130549B1 (en) | 2019-12-31 | 2020-07-07 | (주)해바람에너지 | Construction method and Substructure for offshore structures |
KR102409585B1 (en) | 2020-12-16 | 2022-06-20 | 삼강엠앤티 주식회사 | Rigging platform |
KR20220086415A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | Leg shoe for jacket |
KR20220086413A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | X-brace mounting auxiliary device and jacket manufacturing method using the same |
KR20220086417A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | Leg joint position correcting apparatus |
KR20220086414A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | J-tube position correcting apparatus and wind power generator manufacturing method using the same |
KR20220086416A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | assistance apparatus for lifting |
CN116892217A (en) * | 2023-09-05 | 2023-10-17 | 广州文船重工有限公司 | Construction method of offshore wind power jacket sheet fork |
Citations (1)
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KR101646493B1 (en) * | 2015-08-20 | 2016-08-12 | (주)젠텍엔지니어링 | Offshore wind power substructure and installation method for jacket type substructure thereof |
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2017
- 2017-09-28 KR KR1020170125870A patent/KR101865511B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101646493B1 (en) * | 2015-08-20 | 2016-08-12 | (주)젠텍엔지니어링 | Offshore wind power substructure and installation method for jacket type substructure thereof |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200048152A (en) * | 2018-10-29 | 2020-05-08 | 엘티삼보 주식회사 | Ground improvement method for offshore jacket structure construction and ground improvement method for offshore pile construction |
KR102207398B1 (en) * | 2018-10-29 | 2021-01-26 | 엘티삼보 주식회사 | Ground improvement method for offshore jacket structure construction and ground improvement method for offshore pile construction |
KR102130549B1 (en) | 2019-12-31 | 2020-07-07 | (주)해바람에너지 | Construction method and Substructure for offshore structures |
KR102409585B1 (en) | 2020-12-16 | 2022-06-20 | 삼강엠앤티 주식회사 | Rigging platform |
KR20220086415A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | Leg shoe for jacket |
KR20220086413A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | X-brace mounting auxiliary device and jacket manufacturing method using the same |
KR20220086417A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | Leg joint position correcting apparatus |
KR20220086414A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | J-tube position correcting apparatus and wind power generator manufacturing method using the same |
KR20220086416A (en) | 2020-12-16 | 2022-06-23 | 삼강엠앤티 주식회사 | assistance apparatus for lifting |
CN116892217A (en) * | 2023-09-05 | 2023-10-17 | 广州文船重工有限公司 | Construction method of offshore wind power jacket sheet fork |
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