KR20150009780A - Suction Pile, Assembly thereof and Offshore Wind Power Generator using the same - Google Patents

Abstract

The present invention relates a suction pile, a suction pile assembly, and an offshore wind power facility thereof. More specifically, the present invention can enhance the pull-out bearing capacity while not improving the resistance by using an internal support in a predetermined shape. Accordingly, the suction pile includes: a body which is formed in a hollow cylinder having a closed upper end, open lower end, and side parts surrounded by walls of a cylinder surface and includes outlets formed on a side of the upper plate to suck the sea water; and an internal support which is arranged on the inner part of the upper end or the wall and is formed in the length direction of the body. The present invention can minimize the increase in the penetration resistance while enhancing the pull-out bearing capacity.

Description

Technical Field [0001] The present invention relates to a suction file, a suction file assembly, and an offshore wind power generator using the same,

The present invention relates to a suction file, a suction file assembly, and an offshore wind power generation facility, and more particularly, to a suction file, a suction file assembly, and an offshore wind power generation system that improve a pull- Power generation facilities.

Suction Pile is a file installed by using the pressure difference between the inside and outside of the file generated by discharging the fluid such as water or air inside the file to the outside. It has been used on the sea floor and is used for marine fixed and floating structure supports or anchors such as oil drilling platforms, offshore wind power bases. FIG. 1 is a photograph of a conventional suction file, and FIG. 2 is a conceptual view showing a penetration state of a conventional suction file as a longitudinal section. As shown in Figs. 1 and 2, the shape of the suction file 1 is such that the upper end is closed by the upper plate and the lower end of the cup is folded down so that suction pressure can be easily applied. The largest one of the suction piles (1) constructed to date is 32m in diameter and 37m in length, and is constructed on the sea floor at depths of 300m and used as the foundation of the oil drilling platform. At this time, the suction file (1) may have a discharge port and an injection port on the top plate or side surface of the upper part for discharging and injecting water, and a ring for use as a point of action in drawing may be provided at the center or the side of the upper part.

As shown in Fig. 2, the installation mechanism of the suction file 1 is as follows. When the suction file 1 is placed on the submarine layer 7, the lower end of the file is intruded to the submarine layer 7 to a certain depth by the self weight of the file. In this state, the water in the suction file (1) is drained to the outside by using a drainage device installed on the head of the suction file (1). Since the structure of the suction file 1 except for the lower end of the file is completely blocked by the water flow, the drainage water can be introduced only through the seabed layer 7 at the lower end of the suction paddle 1. However, since the permeability of the seabed ground is very low, the drainage water is prevented from being introduced and restored, so that the pressure inside the suction paddle 1 is lower than the pressure outside the suction paddle 1. As a result, a pressure difference between the inside and the outside of the suction file 1 is generated, and thereby the suction file 1 is intruded.

These suction files can be installed regardless of the size of the suction file. (1) The installation equipment is simple, and there is an example of installation at a depth of 1600m at maximum without being restricted by the depth of water. (2) (3) The installation speed is fast enough to allow installation of 1 unit in a few hours. (4) The water can be drawn into the suction file and the pressure can be pulled out. (5) It is advantageous in that the penetration resistance is reduced by the seepage of the seabed layer at the lower end of the suction pavement when installed.

In addition, the structure using such a suction file can be installed (1) regardless of the depth of water, (2) can be installed in a short period of 1 to 2 days, and can be installed in a submarine ground, (3) Since the inside of the suction file becomes airtight after installation, suction pressure is generated in the suction file due to the drawing, and the suction pressure acts as resistance force (or ground force) (4) there is no need to improve the ground (especially, there is a soft ground in the surface layer and a glass layer in the lower layer, which is sandy soil in the lower layer), (5) the preceding load and the load There is an advantage of being able to experiment.

In such a suction file, there is a possibility that the suction file is eccentric due to the drawing load when the structure is installed. This is because the pull-out force corresponding to the pull load is generated only by the outer wall of the conventional suction file. Once it is eccentric, it is very difficult to solve, and installing the structure in such a state that the shaft is not maintained will cause problems in operation of the equipment.

Conventionally, US 6,227,138 B1, WO 1999022983 A1, EP 2 049 388 B1 and the like have been disclosed in relation to suction files. However, these prior arts also suffer from the drawback supporting force generated only by the cylindrical wall body, so that the problem that the structure is provided in the suction pile to cause a problem in the pulling supporting force corresponding to the pulling load when the load is applied,

For this purpose, it is possible to suggest a method of forming a structure on the outer, outer, or top plate of the suction file, but the drawability of the structure may be deteriorated due to the increased penetration resistance due to the structure.

Also, it is possible to propose a method of inserting a pile-type support into the suction pile after the suction file is inserted. This is because the process of inserting the pile is further added, If the suction is not performed at the same time, there is a disadvantage that the penetration resistance is greatly increased when the pile is inserted. Also, unlike the case of inserting a suction file, there is no pipe input driven by the pressure difference between inside and outside by suction. Therefore, a stronger tube input is required than when a suction file is inserted. In addition, if the pile insertion space is not separately formed during the pile insertion, it is more difficult to insert the inserted pile vertically than by inserting the suction pile. Even if the pile inserting space is separately constructed, there is a disadvantage that the workability is lowered because the pile can be easily inserted only when a device capable of disturbing the bottom layer is provided.

Also, it is possible to provide a submarine floor disturbance device with an internal camera inside the suction file, but it has a disadvantage in that it is complicated in structure, is expensive to manufacture, has a long manufacturing period, and is difficult to manufacture.

Therefore, there is a need for a suction file that can minimize the penetration resistance while improving the pull-out support force and minimizing the construction steps and has a simple structure.

US 6,227,138 B1 WO 1999022983 A1 EP 2 049 388 B1

Accordingly, the present invention has been made to solve the above-described problems.

A first object of the present invention is to provide a suction file which is the basis of a marine structure such as an offshore wind power generation facility for improving a pull-out supporting force without increasing the resistance using a certain type of inner support.

A second object of the present invention is to provide a suction file assembly that is the basis of a marine structure, such as an offshore wind power plant, for enhancing the pull-out force without increasing the resistance using a certain type of inner support .

A third object of the present invention is to provide an offshore wind power generation facility using a suction pile for enhancing the pulling force without increasing the resistance by using a predetermined type of inner support.

Hereinafter, specific means for achieving the object of the present invention will be described.

A first object of the present invention is to provide a suction file which comprises a hollow cylinder having an upper end closed by an upper plate, a lower end opened and a side surrounded by a wall of a cylindrical surface, A main body having an outlet; And an internal support provided in the main body and formed in the longitudinal direction of the main body.

The inner support may be formed of at least one hollow cylinder that is coupled to or extends from the lower surface of the upper plate and is provided in parallel with the wall.

And an inner hole, which is a plurality of holes formed in the cylindrical surface of the inner support.

Wherein the inner support is composed of a plurality of hollow cylinders which are coupled with the upper end and protrude in the longitudinal direction of the main body and are provided in parallel with the wall, Axis. ≪ / RTI >

Wherein the inner support is composed of a plurality of hollow cylinders coupled to the upper end and protruding in the longitudinal direction of the main body and provided in parallel with the wall so that the center axes of the plurality of hollow cylinders are spaced apart from each other by a predetermined distance Lt; / RTI >

The inner support may include a plurality of support plates which are vertically protruded in the radial direction inside the wall and extend in the longitudinal direction of the main body.

The plurality of support plates may gradually increase in thickness from the lower end to the upper end.

And an inner hole that is a plurality of holes formed in the plurality of support plates.

The plurality of support plates may be formed of a plurality of pairs symmetrical with respect to the central axis of the main body.

The plurality of support plates may gradually protrude upward from the lower end to the upper end.

The inner support may include at least one column having a lower surface of the upper plate vertically protruding in the longitudinal direction of the body.

The lower portion of the column may gradually decrease in diameter as it goes to the lower end portion.

The second object of the present invention can be achieved by providing a suction file assembly in which a top plate of a plurality of suction files is arranged to be positioned on one plane and the top plates are mutually connected and fixed.

The plurality of suction files may be configured so that the cylindrical surfaces of each side contact with each other.

A plurality of suction files according to the present invention arranged such that the upper end is positioned on one plane; And a polygonal connecting plate provided at the upper end, wherein the suction plate may be provided at each end of the connecting plate in a predetermined number.

A third object of the present invention is to provide a rotation device comprising a blade; A nacelle for housing a generator that generates power by rotation of the rotary part; A tower installed in the vertical direction and installed at the upper end of the nacelle; And a marine foundation for supporting the tower, the marine foundation being secured to the underside of the sea floor, wherein the marine foundation is achieved by providing an offshore wind power plant comprising a suction file according to the present invention. have.

As described above, the present invention has the following effects.

First, according to the present invention, there is an effect that the pull-out supporting force repulsive to the pull-out load during the load operation is improved, so that it is not eccentric.

Secondly, according to the present invention, since the support is provided inside, the strength of the inner subsoil layer is weakened by the seepage of the submarine bed at the lower end of the suction file due to the suction, and the penetration resistance is not increased.

Thirdly, according to the present invention, it is possible to improve the pull-out holding force while minimizing an increase in penetration resistance.

Fourthly, according to the present invention, when a plurality of cells are provided in the interior, pressure distribution and flow of water between cells can be controlled to control intrusion.

Fifthly, according to the present invention, a plurality of suction pads can be arranged close to each other because the outer protruding member is minimized, thereby improving the density of suction puffs and increasing the overall pulling force.

Sixth, according to the present invention, since the internal cross-sectional area of resistance is increased in a state in which the external shape is maintained, the cost of the equipment required can be reduced and the supply and demand can be facilitated.

Seventh, according to the present invention, there is an effect that various types of supports can be installed in the suction piles, and the optimum support can be installed according to the material and structure of the submarine floor.

Eighth, according to the present invention, since the steps are completed by one construction without the need of performing several construction steps, the efficiency of construction is maximized.

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, And shall not be interpreted.
1 shows a photograph of a conventional suction file,
FIG. 2 is a conceptual view showing a state of penetration of a conventional suction file as a longitudinal section,
3 is a bottom perspective view of a suction file according to the first embodiment of the present invention,
4 is a bottom perspective view of a suction file according to a second embodiment of the present invention,
5 is a bottom perspective view of a suction file according to a third embodiment of the present invention,
6 is a bottom perspective view of a suction file according to a fourth embodiment of the present invention,
7 is a longitudinal sectional view of a suction file according to a fifth embodiment of the present invention,
8 is a longitudinal sectional view of a suction file according to a first modification of the present invention,
9 is a longitudinal sectional view of a suction file according to a second modification of the present invention,
10 is a plan view showing a suction file assembly according to the first embodiment of the present invention,
11 is a plan view showing a suction file assembly according to a second embodiment of the present invention,
12 is a perspective view of an offshore wind power generation facility according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following detailed description of the operation principle of the preferred embodiment of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, it includes not only a case where it is directly connected but also a case where the other part is indirectly connected with another part in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

2, the tube input of the suction file 1 will be a value obtained by adding the product of the weight of the suction file 1 itself and the inner and outer pressure difference and the cross sectional area, and the intrusion resistance force is the suction file 1, Is determined by the tip resistance acting on the bottom end tip and the main surface friction acting on the side wall. If the tube input of the suction file 1 is larger than the intrusion resistance force, the suction file 1 is intruded. The tube input of the suction file 1 is proportional to the square of the diameter, while the penetration resistance is proportional to the diameter. 1), the larger the diameter, the smaller the pressure difference can be installed. Based on this, we consider below.

< Suction file >

The suction file 1 according to an embodiment of the present invention may be composed of a main body 5 and an inner support 10.

The main body 5 may be formed in a cylindrical shape such that the upper end is closed with the upper plate and the lower end is open like the conventional suction puff 1. [ As a result, it can be composed of a top plate and a cylindrical wall. In order to perform the purpose and function of the conventional suction file 1, a discharge port and an injection port may be provided on the upper plate or the side surface for discharging and injecting water. As shown in FIG.

The wall may be formed in a columnar shape like a normal suction file 1, and the upper plate may be formed in a plate like the conventional suction file 1, or may be integrally formed with a structure such as a marine power generation facility.

The inner support 10 is provided on the lower surface of the upper plate or inside the wall, and may be formed in the longitudinal direction of the main body. As a result, the eccentricity of the suction pile 1 is prevented and the workability is improved. As a result of the increase of the cross-sectional area in contact with the seabed layer 7, the pulling support force is improved after the installation to stabilize the installed structure, (1) is minimized, the mutual interference is minimized. Therefore, a plurality of suction pads (1) are provided at a close distance, and the suction pads So that the overall pull-out force efficiency is increased.

In addition, with respect to the penetration resistance, conventionally, a support base is provided on the outside of the suction pile 1 to increase the tip area and the side surface area contacting the bottom layer 7, so that the tip resistance force and the main surface resistance force are increased. As a result, there is a disadvantage that the input of the tube is lowered.

However, according to the present invention, the effect of the suction of the internal seawater of the suction file (1) can be sufficiently utilized by providing a support base inside the suction file (1). At this time, the above-mentioned effect of suctioning the seawater in the suction file 1 is not caused by the ground breakage or the instantaneous plasticity of the sea bed layer 7 obtained due to the seepage occurring in the lower end seabed layer 7 of the suction file 1 (Plasticity). That is, the penetration resistance force generated by providing the support in the inside is relatively lower than the penetration resistance force generated by installing the support on the outside.

In addition, with respect to the pull-out support force generated when the pull-out load is applied after the installation of the suction pile 1 is completed, conventionally, only the outer wall resisted the pull-out load or resisted the pull-out load together with the outer support. However, because of the lack of the pullout support force only by the outer wall, and because the outer support is implemented externally, there is a problem that the penetration resistance increases and the outer shape increases. Therefore, the form is limited, .

However, according to the present invention, it is possible to relatively freely implement the shape of the support since the support member is installed inside and the increase of the penetration resistance is not a problem. This makes it possible to realize an optimum shape of the inner support 10 in accordance with the use of the suction file 1 and the material and structure of the seabed layer 7.

Hereinafter, an embodiment according to the shape of the inner support 10 will be described. The first, second, and third embodiments show that the inner support member 10 is cylindrical, and the fourth and fifth embodiments show the inner support member 10 in the form of a plate. The first and second modified examples each have a cylindrical shape and a plate-like shape, in which a tool (hole), that is, an inner hole 15, which is a hole, is provided or is partially made thin. At this time, it is preferable that the thickness of the inner support 10 is made thinner than the wall of the body 5. [

At this time, in all the embodiments and modifications, it is obvious that a taper process can be performed to minimize the penetration resistance.

&Lt; Embodiment 1 >

3 is a bottom perspective view of the suction file according to the first embodiment of the present invention. 3, the inner support 10 of the suction file 1 according to the first embodiment of the present invention is coupled or extended with the upper plate of the upper end of the main body 5 and protrudes in the longitudinal direction of the main body 5 And a hollow cylindrical column provided parallel to the wall.

In this case, an effect of improving the pull-out support force in all directions occurs. In addition, since the inner support 10 divides the interior into two sections, it is possible to implement pressure distribution, passage and control between the sections by providing valves and pumps as internal passages connecting the sections and the sections. When it is confirmed that the suction file 1 is eccentric at the time of penetration, the pump is operated to utilize the pressure difference between the sections, or it is advantageous to center the sea bed layer 7 again.

At this time, the inner support 10 may have the same length as the main body 5 of the suction paddle 1 to support the entire length of the suction paddle 1, ), And the material and structure of the sea bed layer (7).

When the main body 5 is longer than the main body 5, the pulling support force is improved but the penetration resistance is increased and the supply and demand may be inconvenient. When the deep portion of the sea bed layer 7 is composed of a layer having a hard material, it can be installed in this manner.

In the case of a configuration shorter than the main body, there is an advantage that the increase in the penetration resistance is smaller than that in the above case although the improvement of the pull-out support force is less. If the submarine layer 7 is a single layer or the upper part of the submarine layer 7 is composed of a layer having a hard material, it can be installed in this way.

The non-hollow column can also achieve the predetermined object according to the first embodiment of the present invention. In addition, it is possible to minimize the penetration resistance of the suction paddle 1 by making the bottom of the pillar sharp. However, the inside of the suction file (1) is not divided into a plurality of sections.

&Lt; Embodiment 2 >

4 is a bottom perspective view of a suction file according to a second embodiment of the present invention. 4, the inner support 10 of the suction paddle 1 according to the second embodiment of the present invention is joined or extended with the upper plate of the upper end of the main body 5 to protrude in the longitudinal direction of the main body 5 , And a plurality of hollow cylinders provided parallel to the wall may be configured to overlap so as to share an axis.

According to the second embodiment of the present invention, the inside of the suction file 1 can be constituted by a plurality of sections, through which the suction file 1 can be inserted more precisely through the inter- Eccentricity can be prevented. The pulling support force is improved but the penetration resistance can be increased as compared with the case where the inner support rods 10 are made of a single cylinder.

The non-hollow column may also achieve the predetermined object according to the second embodiment of the present invention. In addition, it is possible to minimize the penetration resistance of the suction paddle 1 by making the bottom of the pillar sharp. However, the inside of the suction file (1) is not divided into a plurality of sections.

&Lt; Third Embodiment >

5 is a bottom perspective view of a suction file according to a third embodiment of the present invention. 5, the inner support 10 of the suction file 1 according to the third embodiment of the present invention is joined or extended with the upper plate of the upper end of the main body 5 to protrude in the longitudinal direction of the main body 5 And a plurality of cylinders spaced apart from each other such that a plurality of hollow cylinders provided in parallel with the wall do not overlap with each other.

According to the third embodiment of the present invention, the inside of the suction file 1 can be constituted by a plurality of sections, the sections are evenly distributed in the lateral direction, (1) Eccentricity at the time of intrusion can be prevented. That is, it is easy to prevent the eccentricity by controlling the pressure in the section in the inclining direction or the opposite direction when the suction file 1 is intruded. The pulling support force is improved but the penetration resistance can be increased as compared with the case where the inner support rods 10 are made of a single cylinder.

The non-hollow column can also achieve the predetermined object according to the third embodiment of the present invention. In addition, it is possible to minimize the penetration resistance of the suction paddle 1 by making the bottom of the pillar sharp. However, the inside of the suction file (1) is not divided into a plurality of sections.

<Fourth Embodiment>

6 is a bottom perspective view of a suction file according to a fourth embodiment of the present invention. As shown in FIG. 6, the inner support 10 may include a plurality of support plates which are vertically protruded in the radial direction inside the wall and extend in the longitudinal direction of the main body 5. The length, height, thickness and shape of the support plate may be set differently depending on the use of the suction pile 1 and the material and structure of the seabed layer 7. However, if the inner support 10 is formed to be symmetrical with respect to the center axis of the main body 5, the pulling support force can be improved in various angles.

At this time, the inner support 10 may have the same length as the main body 5 of the suction paddle 1 to support the entire length of the suction paddle 1, ), And the material and structure of the sea bed layer (7).

When the main body 5 is longer than the main body 5, the pulling support force is improved but the penetration resistance is increased and the supply and demand may be inconvenient. When the deep portion of the sea bed layer 7 is composed of a layer having a hard material, it can be installed in this manner.

In the case of a configuration shorter than the main body, there is an advantage that the increase in the penetration resistance is smaller than that in the above case although the improvement of the pull-out support force is less. If the submarine layer 7 is a single layer or the upper part of the submarine layer 7 is composed of a layer having a hard material, it can be installed in this way.

When the inner support 10 is formed from such a plate, a significant difference in effect may occur compared to a case where the inner support 10 is installed in the form of a cylinder. This is because the inner support 10 is provided on the wall of the upper part of the main body 5, not on the upper plate. The structure of the seabed layer 7 is grasped through various probes or drilling and then the inner support 10 is placed in the form of an anchor at a position corresponding thereto or the height or thickness of the inner support 10 is changed, It is possible to minimize the penetration resistance and reduce the amount of the member to be used, thereby increasing the economical efficiency and maximizing the pulling force. The fifth embodiment will be described below with reference to the shape of the anchor.

<Fifth Embodiment>

7 is a longitudinal sectional view of a suction file according to a fifth embodiment of the present invention. As shown in Fig. 7, the inner support 10 may be composed of a plurality of support plates which are vertically protruded in the radial direction inside the wall and extend in the longitudinal direction of the main body 5, &Lt; / RTI &gt; That is, it gradually protrudes higher from the lower end to the upper end, and has a shape close to a right triangle.

Since the anchor shape is penetrated from the lower end of the projection height at the time of penetration of the suction pile (1), penetration resistance is minimized, and when the pullout load is received, the anchor shape is supported by the upper end having a high projection height, Effect can be obtained. This is an effect comparable to the case where the inner support 10 is implemented in the form of a cylinder as well as when the outer support is implemented. However, the thickness of the inner support 10 may be increased for a similar purpose from the lower end to the upper end.

The inner support 10 according to the fifth embodiment may have four or more rows of the anchor-type support plates symmetrically with respect to the center axes of the main body 5, and may consist of one to five anchor- have. Further, it is obvious that the heat may not be formed in the same direction as the longitudinal direction of the main body 5, but may be constituted by threaded lines or other arrangements. At this time, the determination of the arrangement of the inner support rods 10 should be made in accordance with the use of the suction paddle 1 and the material and structure of the seabed layer 7.

&Lt; First Modified Example and Second Modified Example &

FIG. 8 is a longitudinal sectional view of a suction file according to a first modified example of the present invention, and FIG. 9 is a longitudinal sectional view of a suction file according to a second modified example of the present invention. 8 and 9, the suction file 1 according to the first or second modified embodiment of the present invention has a hole in the form of the inner support 10 described above, that is, an inner hole 15) can be configured. A first modification of the present invention is a modification of the first, second and third embodiments in which the inner hole 15 is formed in the cylindrical inner support 10, and the second modification of the present invention is the same as the fourth and fifth embodiments And the inner hole 15 is formed in the plate-like inner support frame 10 along the longitudinal direction.

It is advantageous in that the inner hole 15 is formed to reduce the amount of member used to increase the economical efficiency and to reduce the penetration resistance due to the reduction of the area of the inner support 10. [ However, it is possible to select the most effective inner hole 15 according to the use of the suction file 1 and the material and structure of the seabed layer 7. That is, the inner hole 15 may be polygonal, circular, elliptical, or linear.

Instead of such an inner hole 15, the inner support 10 may have a partially thinner portion. In such a case where the thickness of the inner support 10 is partially different from the inner diameter of the inner hole 15, it is advantageous in that the economic efficiency is increased due to the reduction of the amount of the member used as in the inner hole 15 and the penetration resistance is reduced due to the reduction of the area of the inner support 10. However, the most effective form of the thinner portion can be selected depending on the use of the suction file 1 and the material and structure of the seabed layer 7. That is, the thin-walled portion may be selected from polygonal, circular, elliptical, and linear shapes.

< Suction file  Assemblies>

FIG. 10 is a plan view showing a suction file assembly according to a first embodiment of the present invention, and FIG. 11 is a plan view showing a suction file assembly according to a second embodiment of the present invention. 10 and 11, the suction file assembly 3 according to an embodiment of the present invention may include a suction file 1 and a linkage 20. The suction padding 1 according to the present invention minimizes the external protruding member, so that there is no restriction on the installation interval and the number of the suction padding members, so that a large number of suction paddles 1 can be installed at a close distance There is an effect to be. This leads to an increase in the overall pull-out force efficiency.

The suction file (1) is as described in the first, second, third, fourth and fifth embodiments and the first and second modifications. The suction pile assembly 3 according to the first embodiment of the present invention can be connected and fixed to each other on the upper plate and arranged so that the cylindrical surfaces thereof face each other is advantageous in terms of the density of the suction pads 1, . In the suction file assembly 3 according to the second embodiment of the present invention, when the upper and lower plates are not directly connected and fixed to each other, a connecting rod 20 having a polygonal shape may be separately provided.

The linkage 20 can be formed in the form of a polygon, and it is preferable that the linkage 20 is formed in the form of a tripod. In the second embodiment of the present invention, as shown in FIG. 11, the connecting rod 20 of the tripod and the two suctioned suction pads 1 provided at the respective vertexes are formed.

<Offshore wind power generation facility>

12 is an offshore wind power generation facility according to an embodiment of the present invention. 12, The offshore wind power generation facility 100 according to an embodiment of the present invention includes a suction file 1, a tower 30, a blade 32, and a nose cell 34 according to an embodiment of the present invention. .

The tower 30, the blades 32, and the nacelle 34 are components of a conventional offshore wind farm. However, according to the embodiment of the present invention, it may be combined with a suction file 1 having an inner support 10 according to an embodiment of the present invention at the lower end of the tower. That is, the suction file 1 according to one embodiment of the present invention can be assembled and used as a suction file assembly 3 as a marine foundation of the offshore wind power generation facility 100.

A suction file assembly 3 having a tripod connection 20 or a plurality of suction files 1 may be installed on the gravity bases of the offshore wind turbine 100 according to an embodiment of the present invention. A hybrid foundation bonded to the caisson can be used.

The arrangement of the internal supports 10 described above is not limited to the drawings, but is preferably determined depending on the use of the suction paddle 1 and the material and structure of the seabed layer 7.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects only as illustrative and not restrictive. 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 should be construed as being included in the scope of the present invention.

1: Suction file
3: Suction file assembly
5: Body
7: Submarine layer
10: Inner support
15: Inner hole
20: Links
30: Towers
32: Blade
34: Nussel
100: offshore wind power facility

Claims (16)

In the suction file,
A main body having an upper end closed by an upper plate, a lower end opened, a side wall formed by a hollow cylindrical body surrounded by a wall of a cylindrical surface, and an outlet for sucking seawater therein; And
An inner support provided in the main body and formed in the longitudinal direction of the main body;
.
The method according to claim 1,
Wherein the inner support comprises at least one hollow cylindrical body joined or extended with the lower surface of the top plate and provided parallel to the wall.
3. The method of claim 2,
An inner hole which is a plurality of holes formed in the cylindrical surface of the inner support;
Further comprising a suction file.
The method according to claim 1,
The inner support includes:
A plurality of hollow cylinders connected to the upper end portion and protruding in the longitudinal direction of the main body and provided in parallel with the wall body,
And the central axes of the plurality of hollow cylinders are respectively aligned with the central axis of the main body.
The method according to claim 1,
The inner support includes:
A plurality of hollow cylinders connected to the upper end portion and protruding in the longitudinal direction of the main body and provided in parallel with the wall body,
And the center axes of the plurality of hollow cylinders are spaced apart from each other by a predetermined distance.
The method according to claim 1,
Wherein the inner support base comprises a plurality of support plates which are vertically protruded in the radial direction inside the wall and extend in the longitudinal direction of the main body.
The method according to claim 6,
Wherein the plurality of support plates are gradually thickened from the lower end to the upper end.
The method according to claim 6,
An inner hole which is a plurality of holes formed in the plurality of support plates;
Further comprising a suction file.
The method according to claim 6,
Wherein the plurality of support plates are composed of a plurality of pairs mutually symmetrical with respect to the central axis of the main body.
The method according to claim 6,
Wherein the plurality of support plates gradually protrude upward from the lower end to the upper end.
The method according to claim 1,
The inner support includes:
And the lower surface of the upper plate is formed of at least one column vertically protruding in the longitudinal direction of the main body.
12. The method of claim 11,
Wherein the lower portion of the column is gradually reduced in diameter toward the lower end portion.
A suction file assembly, wherein a top plate of a suction file according to any one of claims 1 to 12 is arranged to be positioned on one plane, and the top plates are mutually connected and fixed.
14. The method of claim 13,
Wherein the plurality of suction files are configured such that the side faces of the sides are in contact with each other.
12. A suction file according to any one of claims 1 to 12, wherein the suction file is disposed such that its upper end is positioned on one plane. And
A polygonal connecting plate provided at the upper end;
/ RTI &gt;
And the suction plate is provided at each end of the connection plate in a predetermined number.
A rotating part including a blade; A nacelle for housing a generator that generates power by rotation of the rotary part; A tower installed in the vertical direction and installed at the upper end of the nacelle; And a marine foundation secured to the underside to support the tower, the marine foundation comprising:
The offshore wind turbine power plant according to any one of the preceding claims, wherein the offshore foundation includes a suction file according to any one of claims 1 to 12.

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