KR101774401B1 - Support structure of offshore wind turbines and structure method thereof - Google Patents

Abstract

The present invention relates to a suction bucket having a cylindrical suction bucket which is formed with an opening and is formed with an upper surface to be closed and whose side is protruded upward from the upper surface at a certain height so as to be inserted into the sea floor by vacuum suction. A conical support having a ring-shaped member formed on an inner surface of the protruding side surface of the protruding side of the suction bucket and having a hollow inside and a flange inserted outside of the protruded side; An extended portion formed to extend in a predetermined length so as to protrude from the upper portion of the support portion and formed with a hollow therein; The present invention provides an offshore wind turbine support structure that is separated from the offshore wind turbine support structure having a height of several tens of meters to reduce the cost of constructing the support structure By shortening the time and increasing the structural stability by adjusting the verticality of the supporting structure, it is possible to support the offshore wind turbine stably.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an offshore wind turbine support structure,

The present invention relates to a construction field, and more particularly, to an offshore wind power support structure.

In general, an offshore structure is a structure that is installed on the ground in order to install various objects on the sea.

These offshore structures are always subjected to external forces due to waves, tides, winds and the like, and as a result, these offshore wind power support structures are often formed of a concrete material that is most resistant to external forces and resistant to corrosion.

1 is a perspective view showing a structure in which a conventional offshore wind power generation structure is installed on the sea.

As the problem of the noise caused by the wind power generation structure of the land is pointed out, an attempt is made to construct and use the wind power generation structure at sea.

As shown in FIG. 1, a conventional wind power generation structure is formed of a concrete material as a whole, and includes a main body 1 in which a power generation facility is installed, a tower 2 installed at an upper portion thereof, And a braid 3 provided on the outer circumferential surface.

A conical protrusion 4 is formed in the lower part of the main body 1 to prevent the main body 1 from being conducted by a strong wind force, a wave, an earthquake or the like in the sea. In order to prevent the overall sliding of the structure, The sliding prevention portion 5 is also formed.

However, such a conventional wind power generation structure requires excessive cost due to the use of many steel materials, excessive labor and cost are required for its manufacture and construction, and structural stability is not excellent.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a wind turbine supporting structure capable of stably supporting an offshore wind turbine by reducing the cost and time required for constructing an offshore wind power generation support structure, The present invention relates to an offshore wind power support structure capable of supporting an offshore wind turbine.

In order to solve the above-described problems, the present invention provides a suction bucket having a cylindrical suction bucket part formed to have an opening formed therein and closed at an upper surface thereof, the side surface of which is protruded upward from the upper surface by a predetermined height, ; A conical support having a ring-shaped member formed on an inner surface of the protruding side surface of the protruding side of the suction bucket and having a hollow inside and a flange inserted outside of the protruded side; An extended portion formed to extend in a predetermined length so as to protrude from the upper portion of the support portion and formed with a hollow therein; The present invention proposes an offshore wind power support structure including the above-mentioned structure.

Here, a plurality of portions along the circumferential direction of the ring-shaped member may be formed with a reinforcing wing wall that contacts the upper surface of the ring-shaped member and contacts the inner surface of the suction bucket portion.

At least one or more grouting holes capable of grouting the concrete may be formed between the inner surface of the flange and the outer surface of the protruding side surface of the suction bucket portion on the surface of the ring-shaped member.

In addition, at least one overflow confirmation hole may be formed on the surface of the ring-shaped member so as to confirm the amount of concrete that is grouted between the inner surface of the flange and the outer surface of the protruded side surface of the suction bucket.

In addition, the ring-shaped member may be formed on the inner surface of the flange.

The height of the protruding side surface of the suction bucket portion may be the same as the length of the flange disposed downward from the position where the ring-shaped member is formed.

In addition, the right buckling preventing member may be embedded in the upper and lower sides of the upper surface at a position where the upper surface of the suction bucket part is in contact with the side surface of the suction bucket part.

In addition, a plurality of studs may be installed on the outer surface of the right leg deformation preventing member to reinforce the strength between the right leg deformation preventing member and the suction bucket.

The suction bucket unit may be provided at the center of the upper surface thereof with position confirmation means for confirming the position where the suction bucket unit is inserted into the bottom surface.

The positioning means may include a vertical cable having one end connected to the upper side of the suction bucket portion and extending in the sea direction and disposed perpendicularly to the upper surface of the suction bucket portion and a vertical cable provided on the vertical cable, And may have a float perpendicular to the upper surface.

In addition, the upper surface may be removed before the support portion is installed after the suction bucket portion is installed, and the inside of the suction bucket portion and the support portion may be filled with the gravel.

In order to solve the above-described problems, the present invention provides a method for disposing a suction bucket according to an embodiment of the present invention, comprising: a first step of inserting the suction bucket part into a sea floor; A second step of removing the upper surface of the suction bucket part; A third step of disposing the support portion around the upper portion of the suction bucket portion so that the ring-shaped member is seated on the upper side of the protruded suction bucket portion; A fourth step of pouring concrete between the inner surface of the support part and the outer surface of the suction bucket part to integrate the suction bucket part and the support part; A fifth step of back filling the inside of the suction bucket part and the inside of the support part; This paper proposes a method for constructing a marine wind power generation structure.

The present invention provides a technique for installing a marine wind power generation concrete supporting structure having a height of several tens of meters by separating it from the sea, thereby reducing the cost and time required for constructing the supporting structure .

In addition, the present invention can stably support the offshore wind turbine generator by increasing the structural stability of the offshore wind turbine structure by forming the side surface of the support portion to protrude upward from the upper surface of the constant height support portion, There is an effect that can be.

Further, the present invention has an effect that the lifetime of the offshore wind power generation structure can be improved by reinforcing the right-angled portion of the support portion by providing separate right and left deformation preventing members on the upper and lower sides of the area where the upper surface and the side surface of the support portion mutually contact .

1 is a perspective view showing a structure in which a conventional offshore wind power generation structure is installed on the sea,
2 is a perspective view illustrating a structure of an offshore wind power generator supporting structure according to an embodiment of the present invention,
3 is an exploded perspective view of an offshore wind power generator supporting structure according to an embodiment of the present invention,
FIG. 4 is an exploded perspective view of an offshore wind power generator supporting structure according to an embodiment of the present invention,
5 is a longitudinal sectional view showing a structure of an offshore wind power generator supporting structure according to an embodiment of the present invention,
6 is a sectional view taken along line VI-VI in Fig. 5,
7 is a longitudinal sectional view showing a state in which a suction bucket part of an offshore wind power generating supporting structure according to an embodiment of the present invention is inserted into a sea floor,
FIG. 8 is a construction flowchart sequentially illustrating a process of installing an offshore wind power generator supporting structure according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view showing a structure of an offshore wind power generating supporting structure according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of an offshore wind power generating supporting structure according to an embodiment of the present invention, 5 is a longitudinal sectional view showing the structure of an offshore wind power generating support structure according to an embodiment of the present invention, and FIG. 5 is a longitudinal sectional view showing a structure of an offshore wind power generating support structure according to an embodiment of the present invention. 6 is a cross-sectional view taken along line VI-VI in FIG. 5, and FIG. 7 is a longitudinal sectional view showing a state in which a suction bucket part of an offshore wind power generator supporting structure according to an embodiment of the present invention is inserted into a sea floor, FIG. 8 is a construction flowchart sequentially illustrating a process of installing an offshore wind power generator supporting structure according to an embodiment of the present invention.

As shown in these drawings, the offshore wind power generation supporting structure according to the present invention is formed such that when it is inserted into a seabed surface by vacuum suction, the opening is formed and the upper surface is closed and the side surface is formed on the upper side of the upper surface 110 A cylindrical suction bucket part 100 formed to protrude at a predetermined height; A hollow member 220 is formed on the inner surface of the flange 230 and is seated on the upper surface of the protruding side surface of the suction bucket part 100. The flange 230 is inserted into the protruded side of the flange 230 Shaped support portion 200; And an extension part 300 having a hollow 310 formed in the upper part of the support part 200 so as to protrude to the sea and extending in a predetermined length.

The suction bucket part 100 is a member which is inserted into the bottom of the sea using a vacuum formed therein to stably support the support part 200 and the extension parts 300 provided thereon, And a lower surface is formed into a cylindrical shape having an opening.

A plurality of suction holes 111 are formed in the upper surface 110 of the suction bucket part 100 to connect the suction bucket part 100 to the bottom surface of the suction bucket part 100, Respectively.

The side surface of the suction bucket part 100 protrudes upward from the upper surface 110 so that the lower surface of the upper surface 110 of the suction bucket part 100 contacts the bottom surface of the suction bucket part 100 Is projected to the upper portion of the sea floor at a certain height.

The side surface of the suction bucket part 100 is protruded from the bottom surface at a predetermined height so that when the supporting part 200 is installed on the upper surface of the suction bucket part 100, the lower surface of the supporting part 200 is supported in contact with the sea floor Like member 210 provided on the inner side of the support part 200 is seated on the upper surface of the suction bucket part 100 so that the weight of the support part 200 can be dispersed and stably supported, Thereby making it possible to stably support the offshore wind turbine generator.

The height of the protruded side of the suction bucket part 100 is preferably the same as the length of the flange 230 disposed downward from the position where the ring-shaped member 210 is formed.

The upper surface 110 of the suction bucket part 100 is formed on the upper part of the suction bucket part 100 so that the upper surface 110 and the sea bottom surface are completely in contact with each other when the suction bucket part 100 is mounted on the sea floor, It is possible to securely support the offshore wind turbine generator.

The upper surface of the suction bucket part 100 is filled in the interior of the offshore wind power generating structure by filling up the soil after the suction bucket part 100 is completely intruded into the sea floor to thereby improve the supporting force, It is desirable to prevent sinkage of the battery 100.

The upper and lower sides of the upper surface 110 of the suction bucket part 100 at a position where the upper surface 110 of the suction bucket part 100 is in contact with the side surface of the suction bucket part 100, Is installed.

The right buck part deformation preventing member 120 is installed in the concrete inside the concrete when the concrete is laid in the formwork for manufacturing the suction bucket part 100, Is most effective in reinforcing strength.

A plurality of studs 121 are provided on the outer surface of the right leg deformation preventing member 120 so as to reinforce the strength between the right leg deformation preventing member 120 and the suction bucket portion 100, The strength between the suction bucket part 120 and the suction bucket part 100 can be reinforced.

The support part 200 is formed in a conical shape and the lower part thereof is coupled to the periphery of the suction bucket part 100 to support an offshore structure such as a wind power generator. And an extension part 300 is provided on the upper surface.

The support portion 200 includes the flange 240 extending from the lower circumferential surface of the conical member downward by a predetermined length so that when the support portion 200 is installed on the suction bucket portion 100, It is effective to disperse the supporting force so that the suction bucket part 100 can be stably supported.

The supporting part 200 has a separate ring-shaped member 210 protruding inwardly in the radial direction on the inner surface thereof and extending along the circumferential direction and seated on the protruding side surface of the suction bucket part 100, And is inserted into the outer surface of the body 100.

The ring-like member 210 is formed on the inner surface of the flange 230 so that the sides of the suction bucket part 100 protruding from the upper part of the upper surface 110 are separated from the flange 230, So that a spacing space portion can be formed between the inner surface and the protruding side surface of the suction bucket portion 100.

It is effective to allow the suction bucket part 100 and the support part 200 to firmly engage with each other by integrating the concrete in the separated space part by grouting.

The reinforcing wing wall 240 is formed at a plurality of locations along the circumferential direction of the ring-shaped member 210 so as to contact the upper surface of the ring-shaped member 210 and to contact the inner surface of the suction bucket part 100.

The reinforcing wing wall 240 is formed in the shape of a triangle and the reinforcing wing wall 240 is formed of the same concrete material as the supporting portion 200 and is integrally formed with the supporting portion 200.

It is effective that the reinforcing wing walls 240 are spaced apart from each other by a predetermined distance so that the resistance force transmitted to the ring-shaped member 210 is uniformly distributed due to the load of the support portion 200.

At least one grouting hole 211 for grouting concrete is formed between the inner surface of the flange 230 and the outer surface of the protruded side surface of the suction bucket part 100 through the plate surface of the ring- Allow the concrete to be routed to the part.

The surface of the ring-like member 210 is provided with at least one overflow check hole 212 (see FIG. 2) that can confirm the amount of concrete filled in grouting between the inner surface of the flange 230 and the outer surface of the protruding side surface of the suction bucket 100 As shown in Fig.

The grouting hole 211 and the overflow confirmation hole 212 are provided on the plate surface of the ring-shaped member 210 so that the grouting hole 211 and the overflow confirmation hole 212 are alternately It is effective to arrange it in the enemy.

The extension part 300 extends upward from the upper surface of the support part 200 along the height direction to support the offshore structure such that a marine structure such as a wind power generator is seated on the upper surface thereof.

The upper end of the extension part 300 may be formed to have a greater width than other areas to widen the contact area with the anchored marine structure and the hollow part 210 of the support part 200 may be formed inside the extension part 300. [ It is preferable that a separate hollow 310 is formed so as to be communicated with the hollow shaft 310.

The formation of the hollows 210 and 310 in the support part 200 and the extension part 300 can reduce the weight of the support part 200 and the extension part 300 to facilitate transportation and installation.

The side surface of the suction bucket part 100 may be provided with positioning means 400 for confirming the position where the suction bucket part 100 is inserted into the bottom surface.

 The position confirming means 400 is connected to the clamping ring 410 provided at one side of the suction bucket unit 100 and extends vertically and is connected to a vertical cable (not shown) disposed perpendicularly to the upper surface of the suction bucket unit 100 And a float 430 provided on the vertical cable 420 so that the vertical cable 420 is perpendicular to the upper surface of the suction bucket part 100.

The method for constructing the offshore wind power generating supporting structure on the underside of the wind power generating supporting structure according to an embodiment of the present invention is as follows.

After the installation of the suction bucket part 100, the part of the surface of the sea bed is removed to form the installation groove. Then, the installation groove is filled with the gravel-like soil again. So that the vertical view can be easily modified when the bucket part 100 is tilted to one side.

In the case where the bottom surface of the seabed is soft, the process of forming such an installation groove is omitted and the suction bucket part 100 is seated directly on the seabed surface, and then the vertical buoy part 100 is inserted So that it can be installed.

After the filling of the soil such as sand is completed and the suction bucket part 100 is mounted on the installation groove, the suction bucket part 100 is connected to the suction hole 111 formed on the upper surface of the suction bucket part 100, So that the suction bucket part 100 is gradually inserted into the bottom of the sea bed.

When the suction bucket part 100 is completely installed, the support part 200 is inserted into the outer side of the side surface of the suction bucket part 100 protruding upward from the upper surface 110 of the suction bucket part 100, The lower surface of the ring-shaped member 210 provided on the inner surface of the supporter 200 and the upper surface of the side surface protruding above the upper surface 110 of the suction bucket part 100 are in contact with each other, So that the bucket part 100 can stably support the support part 200.

In this state, since the lower end of the flange 230 provided on the supporter 200 is supported in contact with the seabed surface, the resisting force due to the load of the supporter 200 is uniformly dispersed, Thereby supporting the support portion 200.

After the support part 200 is seated on the upper side of the suction bucket part 100, the concrete 110 is poured and cured in the spacing space part surrounded by the inner surface of the support part 200 and the outer surface of the suction bucket part 100, So that the part 100 and the supporting part 200 are integrated.

At this time, the concrete is poured through the grouting hole 211 formed through the plate surface of the ring-shaped member 210, and the amount of concrete poured is confirmed through the overflow confirmation hole 212, So that it can be inserted into the spacing space formed between the outer surface of the suction bucket part 100 and the inner surface of the support part 200.

Thereafter, the upper surface 110 of the position determining means 400 and the suction bucket portion 100 is removed, and the support portion 200 is formed on the inner surface of the suction bucket portion 100 and the support portion 200, The installation of the offshore wind power support structure is completed by installing an offshore structure such as a wind power generator on the upper surface of the extension part 300 formed integrally with the support part 200 and extending upward from the sea level .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

100: Suction bucket part 110: Upper surface
200: support part 210: ring-shaped member
211: grouting ball 212: overflow ball
220: hollow 230: flange
240: reinforcing wing wall 300: extension part
310: Hollow 400: Positioning means
410: fastening ring 420: vertical cable
430: float

Claims (12)

A cylindrical suction bucket unit 100 having an opening formed in such a manner as to be inserted into the sea floor by vacuum suction and having an upper surface closed and a side surface protruding upward from the upper surface 110;
A hollow member 220 is formed on the inner surface of the flange 230 and is seated on the upper surface of the protruding side surface of the suction bucket part 100. The flange 230 is inserted into the protruded side of the flange 230 Shaped support portion 200;
An extension part 300 formed by extending a predetermined length so as to protrude in the upper part of the support part 200 and having a hollow 310 therein; Including,
The right buckling preventing member 120 is embedded on the upper side and the lower side of the upper surface 110 at a position where the upper surface 110 of the suction bucket part 100 is in contact with the side surface of the suction bucket part 100 And a plurality of studs 121 are installed on the outer surface of the right leg deformation preventing member 120 to reinforce the strength between the right leg deformation preventing member 120 and the suction bucket portion 100 And,
The ring-shaped member 210 is formed on the inner surface of the flange 230 and the height of the protruding side surface of the suction bucket part 100 is larger than the height of the flange 230 disposed below the ring- Is formed to have the same length as the length of the wind turbine support structure. The method according to claim 1,
And a plurality of reinforcing vanes 240 contacting the upper surface of the ring-shaped member 210 and contacting the inner surface of the suction bucket part 100 are formed at a plurality of locations along the circumferential direction of the ring- Offshore wind power support structure. The method according to claim 1,
At least one grouting hole 211 through which the concrete can be grouted is formed between the inner surface of the flange 230 and the outer surface of the protruding side surface of the suction bucket part 100 through a plate surface of the ring- Offshore wind power support structure. The method of claim 3,
At least one overflow check hole (not shown) is formed on the surface of the ring-shaped member 210 so as to confirm the amount of concrete that is grouted between the inner surface of the flange 230 and the outer surface of the protruded side surface of the suction bucket portion 100 212) is formed to penetrate through the wind turbine support structure. delete delete delete delete The method according to claim 1,
And a position confirming means 400 for confirming a position where the suction bucket portion 100 is inserted into the bottom surface is provided at the center of the upper surface 110 of the suction bucket portion 100. [ Support structure. 10. The method of claim 9,
The position determining means 400 includes a vertical cable (not shown) which is connected to a clamping ring 410 provided at one end of the suction bucket unit 100 and extends in the sea direction and is disposed perpendicularly to the upper surface of the suction bucket unit 100 And a float 430 installed on the vertical cable 420 so that the vertical cable 420 is perpendicular to the upper surface of the suction bucket part 100. [ structure. The method according to claim 1,
The upper surface 110 is removed before the support portion 200 is installed after the suction bucket portion 100 is installed and the inside of the suction bucket portion 100 and the support portion 200 are filled with the gravel Offshore wind power support structure. A method of constructing an offshore wind power support structure for constructing an offshore wind power support structure according to any one of claims 1 to 4 and 9 to 11 on a seabed surface,
A first step of inserting the suction bucket part (100) into the bottom surface of the suction bucket part (100) by placing the suction bucket part (100) in a vacuum state after the suction bucket part (S1);
A second step S2 of removing the upper surface 110 of the suction bucket part 100;
A third step (S3) of disposing the support part (200) around the upper part of the suction bucket part (100) so as to be seated on the side surface of the suction bucket part (100) protruding from the ring member (210);
A fourth step S4 of pouring concrete between the inner surface of the support part 200 and the outer surface of the suction bucket part 100 to integrate the suction bucket part 100 and the support part 200;
A fifth step (S5) of filling up the inside of the suction bucket part (100) and the inside of the support part (200);
Wherein the support structure comprises at least one of the following:

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