KR101645362B1 - Jacket support structure for offshore wind turbine using precast housing and suction pile and the construction method - Google Patents

Jacket support structure for offshore wind turbine using precast housing and suction pile and the construction method Download PDF

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Publication number
KR101645362B1
KR101645362B1 KR1020140023616A KR20140023616A KR101645362B1 KR 101645362 B1 KR101645362 B1 KR 101645362B1 KR 1020140023616 A KR1020140023616 A KR 1020140023616A KR 20140023616 A KR20140023616 A KR 20140023616A KR 101645362 B1 KR101645362 B1 KR 101645362B1
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house
leg
suction
jacket
file
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KR1020140023616A
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Korean (ko)
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KR20150101834A (en
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경갑수
정지영
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한국해양대학교 산학협력단
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Priority to KR1020140023616A priority Critical patent/KR101645362B1/en
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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
    • E02B17/0004—Nodal points
    • 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
    • E02B2017/0091—Offshore structures for 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wind Motors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)

Abstract

The present invention relates to a support structure for a jacket capable of installing a wind power generation facility on the seabed, a PC house constructed to enable quick and convenient construction of the stiffness and buckling of an operation load, an offshore wind jacket supporting structure using a suction file, The PC house is integrally formed at the upper and lower ends of the legs so that the jacket is penetrated through the seabed to the seabed so that it is structurally stable and quick to construct an offshore wind jacket supporting structure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind turbine jacket supporting structure using a PC house and a suction file,

The present invention relates to an offshore wind jacket supporting structure using a PC house and a suction file, and a construction method thereof. More specifically, the present invention relates to a jacket supporting structure capable of installing a wind power generation facility on a seabed ground, which is capable of effectively restraining stress and displacement against an operating load, To a jacket supporting structure and a method of construction thereof.

Generally, a wind turbine generating power using wind is constructed such that a blade (propeller) is installed on a rotary shaft of a generator, and power generation can be performed using rotational force generated as the blade rotates by the wind.

Such a wind turbine is a device for converting wind energy into electric energy, and is usually composed of a blade, a transmission, and a generator.

Here, the blade is a device for converting wind energy into mechanical energy by being rotated by the wind, and the transmission device transmits the rotational force generated by the blade to the transmission gear through the central rotation axis and increases to the rotation speed required by the generator, The generator is a device that converts the mechanical energy generated by the blade into electric energy.

Such a wind turbine generator is easy to operate and manage because it is simple in structure and installation, and can be operated unmanned and automated.

In the past, the installation of wind turbines was mainly performed on land, but due to problems such as wind resources, aesthetics, and location constraints, it is in recent trends to construct (simplify) wind turbines (offshore wind generators) on a large scale.

However, in order to construct the offshore wind turbine safely, there is a demand for a safe installation method for the blades and towers to be installed in a high position. The lifetime of offshore wind turbines is about 20 years, and it is common to apply a capacity of 3 ~ 5MW or more, which is larger than that on land.

The offshore wind power generator is generally provided with a transition piece (TP) on an upper part of a foundation, and a wind turbine including a tower, a nacelle and a blade is installed on the transition piece. do.

The foundation may be broadly classified into a concrete concrete caisson type, a mono-pile type, a jacket type, and a floating type.

First, the concrete caisson type as a foundation is a type used in an early offshore wind power generator because it is easy to manufacture and install. It can be used at a relatively shallow water depth of 6 ~ 10m and maintains its position by friction force of its own weight and sea floor. At this time, the base diameter of concrete caisson type is about 12 ~ 15m.

Next, the mono-pile type is the most widely used method, and can be installed at a depth of 25 to 30 m. This is economically advantageous when used in a large-scale complex by fixing large-diameter piles on the sea floor by driving or drilling. At this time, the base diameter of the monofile type is about 3 to 3.5 m.

Next, the jacket type as a base part is a type that is showing a lot of interest in the present state of the offshore wind turbine generator complex, and can be installed at a water depth of 20 to 80 m.

This type is a method of fixing to the sea floor with a pile or pile supporting a jacket (leg, bracing). It is a large-scale ocean structure, has high track record and high reliability, and is economically advantageous when used in the construction of a large-scale offshore wind turbine generator as in the mono-pile type.

Finally, the floating type as a foundation is a mandatory task for future deep-sea wind power generation, and many wind turbine companies are studying to be able to install at a depth of 40 ~ 900m.

Figs. 1A and 1B show the installation of a jacket 10, a leg 20, a bracing 30, a transition piece (usually TP) used for a jacket type in the base of an offshore wind turbine generator, .

In other words, it can be seen that four jacket files 10 are to be installed on the seabed ground, but are constructed in the form of a slant file.

The jacket file 10 is installed on the bottom of the sea so that the legs 20 are extended to the upper part of the jacket 10. The legs 20 are inclined to be gathered toward the upper part of the legs 20, As shown in FIG.

The connecting portion between the leg 20 and the bracing member 30 uses a connector called CAN, for example.

The jacket generally includes the legs 20 and the bracing member 30.

At this time, the legs 20 extend so as to protrude above the sea surface, and the upper deck 40 is installed on the exposed upper surface.

The upper deck 40 is formed in the shape of a rectangular flat plate, and a transition piece (usually TP) in the form of a hollow tube is installed on the upper surface of the upper deck 40.

Thus, a transition piece (usually TP) is provided with a tower, and a nacelle and a blade are installed at an upper end of the tower.

At this time, the upper deck 40 has an advantage that it is assembled with H-shaped steel material or the like in the sea, but its weight is not large. However, it is a disadvantage in construction of an offshore wind power generator by using the weight of the jacket.

However, if the weight of the upper deck becomes larger, the cross-section of a file (for example, a skirt file) supporting the jacket as well as the jacket must be designed together with a larger weight, There is a problem that construction becomes difficult.

Therefore, even when the base portion is constructed by using the weight of the upper deck in the jacket-type foundation portion of the offshore wind power generator, increase in stress and displacement of the jacket due to the self weight of the upper deck can be suppressed, A jacket file for supporting a jacket can be constructed quickly and reliably, thereby providing a more efficient and economical PC house, and a technical problem of providing an offshore wind jacket supporting structure using the suction file and a construction method thereof.

In order to achieve the above object, according to the present invention, there is provided a jacket type (leg + bracing material) base of an offshore wind power generator,

First, an upper PC house is used as an upper deck installed at an upper end of a leg constituting a jacket, and a transition piece (usually TP) is integrally formed at a central portion of the upper PC house.

The upper PC house is formed, for example, in the form of a rectangular plate, so that a hollow portion (S, a structure capable of injecting seawater into the interior) is formed in the inside so as to adjust its own weight. So that the efficiency of construction of the jacket-type foundation part of the offshore wind power generator by the suction file is enhanced.

In addition, the upper PC house is provided with a leg upper receiving pipe so that it can be easily integrated with the upper end of the leg, and a transition piece (usually TP) is integrally formed at the central portion, To enable rapid construction.

In this case, the upper PC house can be adjusted so that the load transmitted to the jacket does not become too large, so that stress and displacement of the jacket are not largely generated. In order to adjust the weight of the jacket, a hollow portion S is formed in the upper PC house, The hollow part (S) has a ballast function so that it can adjust the weight of the upper PC house.

Second, the weight of the upper PC house is transmitted to a file through a leg and a bracing member. Since the suction file is constructed using the self weight of the stone file, the size of the suction file is made to have a considerable diameter. However, if the size of the suction file is made too large, economical efficiency and workability are poor. Therefore, Effective construction of suction file was made possible by using self weight.

At this time, the sucking file is integrated with the lower PC house at the lower end of the leg of the jacket so that a quick and efficient jacket and suction file can be constructed.

Since the jacket type base portion of the offshore wind turbine according to the present invention can be installed directly on the upper end portion of the leg, the upper PC house having the function of the upper deck for installing the tower can be shortened, It is very easy to secure the work space (installation space of the tower, etc.)

When the upper PC house is installed, it is possible to minimize the bracing material on the upper portion of the jacket because the upper portion of the legs can be restrained to each other, thereby effectively controlling the stress and displacement of the jacket. .

In addition, since a suction file (SUCTION PILE) can be constructed using the lower PC house, a more effective and economical suction file construction becomes possible.

In addition, by using the lower PC house integrated with the suction file on the jacket support, the stability of the foundation installed on the seabed ground is increased, and when considering the weight of the lower PC house, the construction and efficiency of the suction file according to the ground characteristics (clay, sand) .

In addition, the connection between the upper and lower PC houses and the jacket can be more reliably integrated by applying the pre-purging process, which is advantageous for maintenance.

FIGS. 1A and 1B are perspective views of an offshore wind force lower jacket supporting structure having a conventional jacket-
FIGS. 2A and 2B are a perspective view and an installation front view of an offshore wind force lower jacket supporting structure using a PC house and a suction file according to the present invention,
FIGS. 3A, 3B, 3C and 3D are detailed configurations of upper and lower PC houses and suction files of the present invention,
4A and 4B are flowcharts of a method for constructing an offshore wind jacket supporting structure using a PC house and a suction file.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Offshore Wind Jacket Supporting Structure (100) of the Present Invention)

2A and 2B are a perspective view and an installation front view of an offshore wind jacket supporting structure 100 using a PC house and a suction file according to the present invention.

First, the offshore wind jacket supporting structure 100 of the present invention has a technical configuration corresponding to a jacket file, a jacket (leg, bracing material), and a top deck.

That is, the offshore wind jacket supporting structure 100 of the present invention uses a suction file 110 formed integrally with the lower PC house 120 as a jacket file and uses the upper PC house 150 as an upper deck, Legs 130 and a bracing member 140 and a transition piece TP.

The suction file 110 is formed integrally with the lower PC house 120 at the lower end of the leg 130 constituting the jacket type offshore wind jacket supporting structure 100 according to the present invention. There are technical features.

Such a suction file 110 has no restriction on installation depth, has a merit of relatively simple installation, and economical efficiency can be secured since heavy equipment is not required. Particularly useful for sandy soil or clayey soils.

The suction file 110 refers to a file installed by using a pressure difference between inside and outside of a file generated by discharging a fluid such as water or air inside a file (steel or concrete) to the outside. The shape of the suction file is such that the upper part is sealed and the lower part is opened to easily apply a negative pressure.

When the suction file 110 is placed on the submarine ground, the lower end of the file penetrates to a certain depth of the sea floor due to the self weight of the suction file. In this state, the water inside the suction file is drained to the outside by using the sound pressure device installed on the head of the suction file.

Since the structure of the suction file is completely shut off the flow of water except for the lower part, the pressure inside the suction file is lowered as the fluid such as water or air inside is discharged to the outside. As a result, there is a pressure difference between the inside and the outside of the suction file, and the base is intruded by the self weight of the suction file.

At this time, the resistance which interferes with the penetration of the suction file is determined by the end bearing force and the frictional force at the lower end of the suction file, and if the tube input is larger than the resistance force, the base is intruded.

For a certain depth of penetration, the induction force of the suction pile is proportional to the square of the cross-sectional area of the suction pile and the pressure difference between the inside and the outside, but the resistance is proportional to the diameter. Do.

The present invention relates to a suction paddle 110 which is manufactured to have a relatively large diameter and which can be easily connected to the leg 130 as the diameter increases, The lower PC house 120 is integrated with the upper end of the suction paddle 110 to effectively resist buckling of the connecting portion between the leg and the suction pads 110 caused by the suction force.

As shown in FIG. 2B, the bottom surface of the lower PC house 120 is in contact with the bottom of the seabed so that the suction pile 110 is integrated with the bottom of the lower PC house 120.

The leg 130 is then extended to the upper PC house 150 such that it is inclined from the central portion of the lower PC house 120 toward the transition piece 160. The lower end of the leg 130 and the upper end of the suction paddle 110 may be embedded in the lower PC house 120. The lower end of the leg 130 may be connected to the upper surface of the suction paddle 110, A function to make the suction file 110 integrally connected to the jacket including the leg 130 in advance so that the load transmitted to the leg 130 can be effectively transferred to the suction file 110 .

By using the lower PC house integrated with the suction file on the jacket support, the stability of the foundation installed on the seabed ground is increased and the suction file using the weight of the lower PC house can be constructed.

Next, the bracing member 140 is installed between the legs 130, which are installed so that the upper ends of the bracing members 140 are assembled to each other. (120) to the suction file (110).

The bracing member 140 has a structure in which the legs 130 are restrained by the horizontal member at the lower end and the upper end of the legs 130 so as to effectively resist buckling or displacement of the upper and lower ends of the legs.

The bracing material 140 may be installed in the form of a conventional Warren I, II or X bracing (or a combination thereof) and may be a steel material installed between the legs 130, such as a can, Thereby connecting the legs 130 with each other. Preferably, the most advantageous economically most advantageous shape of Warren I is best suited to the present invention.

Next, as the upper deck, the upper PC house 150 is integrally formed with a transition piece (TP) 160, which is made of precast concrete.

Therefore, it is not necessary to separately install the transfer piece (TP, 160) and it is installed in the form of a rectangular plate, which is very advantageous for securing work space for installation of towers and the like immediately after installation.

Since the upper PC house 150 is manufactured as precast concrete, its own weight is transmitted to the suction file 110 through the legs 130, which is very useful for penetrating the bottom of the suction pile having the characteristic of using its own weight.

At this time, it is preferable that the weight of the upper PC house 150 can be adjusted in consideration of the field conditions and the like. In the present invention, particularly, a plurality of hollow portions S are formed inside the upper PC house 150, Respectively.

This adjustment is made possible through an injection pipe (not shown) that allows the hollow portion S to be in an empty space or to introduce seawater or the like from the outside, so that the hollow portion S plays a role of providing a ballast function.

Also, the leg upper receiving pipe 151 for inserting the upper end portion of the leg is also embedded in advance so as to facilitate the connection with the leg 130, so that the upper end of the leg can be easily inserted and installed so that the economical efficiency due to the workability and quick installation can be secured. .

A transition piece TP 160 is integrally formed at the center of the upper PC house 150 and the transition piece TP 160 is formed as a circular tube or circular ring as a kind of socket for installing a tower .

In this way, the offshore wind jacket supporting structure 100 of the present invention is constructed such that the suction paddle 110 and the legs 130 are installed using the lower PC house 120, the legs are vertically and vertically confined by the bracing member 140, It can be seen that the upper PC house 150 in which the transition piece TP is integrally formed at the upper end of the leg 130 protruded above the sea level is installed as the upper deck.

[Lower PC house 120 and upper PC house 150 of the present invention]

FIGS. 3A to 3D are diagrams showing detailed configurations of a lower PC house 120 and an upper PC house 150 of the present invention, respectively.

3A and 3B illustrate a connection structure between the lower PC house 120 and the legs 130 and the suction pads 110. As shown in FIG.

Here, the meaning of the PC refers to the pre-cast, and the lower PC house 120 is constructed so that the leg 130 and the suction file 110, which constitute the jacket in advance, are integrally formed with each other in the PRECAST CONCRETE manufacturing method, 130 and the upper end of the suction paddle 110. [

The suction file 110 uses a tube-shaped file whose upper surface is closed, and a suction hole 111 for discharging air or the like is formed on the upper surface.

At this time, it can be seen that a leg lower insertion tube 112 is formed in the form of a circular ring on the upper surface of the suction pile around the suction hole 111. Concrete and non-shrinkage mortar are formed on the outer and inner circumferential surfaces of the leg lower insertion tube 112 A large number of oil-repellent unmelting materials 113 for synthesizing the filler are installed.

The lower leg insertion tube 112 is installed in advance so that the suction hole 111 is located on the upper side of the suction file 110 and the upper surface of the suction file 110 and the upper surface of the leg lower insertion tube 112 And the upper end of the suction file 110 is integrated by the lower PC house 120. In this case,

The lower end of the leg 130 is inserted into the inner space of the lower leg insertion tube 112. When the bottom surface of the leg 130 is brought into contact with the upper surface of the suction pile around the suction hole 111, It can be seen that the leg 130 and the suction pile 110 are integrated by the lower PC house 120 by injecting into the inner space of the leg lower insertion tube 112.

3C and FIG. 3D illustrate detailed configuration diagrams of the upper PC house 150 and the leg 130, wherein the PC is also referred to as a precast, wherein the upper PC house 150 is a precast concrete (PRECAST CONCRETE) method.

In the upper PC house 150, a hollow portion S is formed so that the weight of the upper PC house 150 can be adjusted, so that the concrete placed in the hollow portion S is excluded.

It will be appreciated that a plurality of such hollows S may be disposed between the corners of the upper PC house 150.

It has been shown that it is possible to introduce seawater into the internal space due to the hollow portion S to have a ballast function.

Also, the upper leg insertion pipe 151 is formed in consideration of the inclination of the leg 130 so that the upper end of the leg 130 is inserted into both corner portions and fixed with a filler such as non-shrinkage concrete. The perforation pre-sealing material 153 is formed on the inner side surface and the outer circumferential surface of the upper leg insertion pipe 151, thereby enhancing the composite performance with the filler such as non-shrinkage concrete and concrete.

A transition piece TP 160 is formed on a central portion of the upper PC house 150 so that the bottom surface of the ring-shaped transition piece TP and the bottom surface of the upper PC house 150 coincide with each other, And 160 extend upwardly from the bottom surface of the upper PC house 150 so as to protrude.

The upper end of the upper PC house 150 is also provided with a pneumatic joint end stop 163 so as to ensure sufficient integration with the upper PC house 150.

The lower end of the tower 200 is inserted into the transition piece TP 160 and the tower 200 and the upper PC house 150 are integrated with each other by a filler such as non-shrinkage concrete.

The upper PC house 150 of the present invention is manufactured in advance and installed to insert the upper end of the leg 130 and then the tower 200 is inserted into the transition pieces TP of the upper PC house 150 It is understood that the construction is performed by the method.

[Construction Method of Offshore Wind Jacket Supporting Structure (100) Using PC House and Suction File of the Present Invention)

4A and 4B illustrate a construction flowchart of an offshore wind jacket supporting structure 100 using a PC house and a suction file according to the present invention.

First, in the present invention, the jacket including the legs 130 and the brazing material 140 is assembled and manufactured in advance in a factory or the like. It will be appreciated that the upper and lower ends of the bracing member 140 will be determined according to the length of the legs 130 and that an upper brace frame is used to restrain the legs 130 at the upper end. There is no need to use a brace frame, and the upper brace frame is also useful for seating the upper PC house.

At this time, it can be seen that the lower PC house 120 and the suction file 110 are integrally formed at the lower end of the leg 130. Thus, the offshore wind jacket supporting structure of the present invention is constructed such that the lower PC house 120, And the jacket including the legs 130 and the bracing member 140 is used to move it in the sea, and then the lower PC house 120 is sucked to the bottom of the sea floor by its own weight, So that the suction file 110, which is integrated with the bottom surface,

Such a suction operation is a process of pumping air and seawater through the suction hole 111 of the suction paddle 110 to the outside, but a suction line may be separately installed through the inside of the leg although it is not shown.

As a result, when the suction file 110 is completely inserted into the bottom PC house 120, the bottom PC house 120 contacts the bottom surface of the bottom of the sea bottom, and the jacket is stably installed on the bottom of the seabed.

4B, the upper end of the leg 130 is inserted into the upper leg insertion pipe 151 of the upper PC house 150, and then the upper end of the leg is integrated with the upper PC house 150, The jacket support structure 100 is installed.

This can be done simply by injecting a filler such as non-shrinkage concrete into the upper leg insertion pipe 151 into which the upper end of the leg is inserted.

Although the upper PC house 150 of the present invention may be integrally installed on the upper end of the leg 130 installed at the site in advance, the upper PC house 150 of the upper end of the leg 130 may be integrally assembled, The wind jacket supporting structure 100 can be installed (refer to claim 7).

This approach would be suitable for installation of a small offshore wind jacket support structure 100. This can be determined in consideration of the rapid construction and the size of the offshore wind jacket supporting structure.

Next, a lower end of the tower 200 is integrated with a transition piece TP installed in the upper PC house 150, and a wind power generation facility including a nacelle and a blade is installed at the upper end of the tower 200 And install the final offshore wind power generator.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Offshore wind jacket support structure
110: Suction file 111: Suction hole
112: leg lower insertion tube 113:
120: Lower PC house
130: Leg
140: Bracing material
150: Top PC House
151: leg upper insertion tube
160: Transition piece (TP)
200: Tower

Claims (9)

A jacket including a bracing member 140 that is a steel material installed between the legs 130 and the legs 130;
A lower PC house 120 formed around the lower end of the leg 130 and the upper end of the suction pile 110 so that the leg 130 and the suction pile 110 are integrated with each other; And
And a rectangular upper PC house 150 having a hollow portion S formed therein so that an upper end of the leg 130 is inserted and connected and a transition piece 160 is integrally formed at a central portion thereof and its own weight can be adjusted ,
The leg 130 extends from the central portion of the lower PC house 120 to the upper PC house 150 so as to be inclined toward the transition piece 160,
The upper end of the suction paddle 110 is sealed and the lower end of the suction paddle 110 is opened so that a suction hole 111 is formed on the upper surface and a lower leg insertion pipe 112 is formed on the upper surface around the suction hole 111, The inner side of the lower leg insertion tube 112 is filled with a filler so that the lower end of the leg 130 is inserted into the lower leg insertion tube 112 so as to be in contact with the upper surface of the suction pile 110, The suction pads 110 are integrated with each other by the lower PC house 120,
The upper PC house 150 is formed such that an upper leg insertion pipe 151 into which the upper end of the leg 130 is inserted is embedded and the transition piece 160 is embedded in the central part of the upper PC house 150, The upper end of the upper PC housing 150 is inserted into the upper leg insertion pipe 151 of the upper PC house 150 and the filler is filled inside the upper leg insertion pipe 151, (150) are integrated with each other, a PC house and an offshore wind jacket supporting structure using a suction file. delete The method according to claim 1,
A PC house for enhancing the composite performance of the concrete and the filler by forming the perforated pre-sintering material 113 on the outer and inner circumferential surfaces of the leg lower insertion tube 112 and the outer circumferential surfaces of the leg lower end, structure. delete The method according to claim 1,
A PC house for enhancing the composite performance of the concrete and the filler by forming the pre-pervious perforation on the outer circumferential surface and the inner circumferential surface of the upper leg insertion pipe 151 and the outer circumferential surface of the transition piece 160, and a marine wind jacket support structure. delete The jacket including the legs 130 and the bracing member 140 is formed on the land so that the upper ends of the suction pads 110 connected to the lower ends of the legs 130 of the jacket are integrated with each other, Installing a rectangular upper PC house (150) on the jacket so as to form a lower PC house (120) around the upper end of the file (110) and to insert and integrate the upper end of the leg (130); And
The upper PC house 150, the lower PC house 120 and the suction paddle 110 are installed in such a manner that the jacket is integrally formed at the upper and lower ends of the legs and is seated on the bottom of the sea by its own weight, So that the suction file is penetrated through the bottom of the seabed,
The upper end of the suction paddle 110 is sealed and the lower end of the suction paddle 110 is opened so that a suction hole 111 is formed on the upper surface and a lower leg insertion pipe 112 is formed on the upper surface around the suction hole 111, The inner side of the lower leg insertion tube 112 is filled with a filler so that the lower end of the leg 130 is inserted into the lower leg insertion tube 112 so as to be in contact with the upper surface of the suction pile 110, The suction pads 110 are integrated with each other by the lower PC house 120,
The upper PC house 150 is formed such that a leg upper insertion tube 151 into which an upper end of the leg 130 is inserted is embedded and a transition piece 160 TP is embedded in the central part, The upper end of the leg 130 is inserted into the upper leg insertion pipe 151 of the upper PC house 150 and the upper end of the leg 130 is inserted into the upper leg insertion pipe 151, A method of constructing an offshore wind jacket supporting structure using a PC house and a suction file, the upper PC house (150) being integrated with each other. delete delete
KR1020140023616A 2014-02-27 2014-02-27 Jacket support structure for offshore wind turbine using precast housing and suction pile and the construction method KR101645362B1 (en)

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