KR101784946B1 - Offshore platform supporting apparatus and method for manufacturing the same - Google Patents

Abstract

Thereby providing an offshore structure supporting apparatus. The support structure for supporting an offshore structure includes a support column having two or more support columns arranged side by side, a side connection part connecting the two support pillars joined to the side surface of the support column and a hollow space formed by the support column and the side connection part And a central connecting portion connecting the two or more supporting columns to each other.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an offshore structure supporting apparatus and a method for manufacturing the same,

The present invention relates to an offshore structure supporting apparatus.

Structures installed in the sea are called offshore structures. Offshore structures can be installed not only on the sea but also on the seabed. The offshore structures can be divided into fixed, semi-submerged, and floating offshore structures depending on the depth of the installation.

The fixed offshore structure has a form to support the hull by using a fixed structure connecting the sea floor to the offshore structure. The semi-submergible offshore structure or the floating offshore structure is supported by the buoyant body, It has a form to lock down.

Korean Patent Publication No. 10-2014-0003834 (Apr. 1, 2014)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for supporting an offshore structure.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, an aspect of an apparatus for supporting an offshore structure according to the present invention is characterized in that two or more side support columns are arranged side by side, And a central connection portion connecting the two or more support pillars to each other in a hollow space formed by the support column and the side connection portion.

The supporting pillars include a joining groove formed along the major axis on both sides opposite to each other and a first connecting means formed along the major axis on the other side where the joining groove is not formed.

The plate-shaped side connection portion is inserted into one side edge of the joint groove and welded to the side surface of the support column by welding.

The first connecting means formed on the supporting column and the second connecting means formed on the central connecting portion are constituted by hooking grooves or hooking protrusions mutually interposed between the supporting pillar and the central connecting portion as the hooking protrusion is inserted into the hooking groove, Jamming is performed.

An aspect of a method of manufacturing an offshore structure supporting apparatus of the present invention includes the steps of arranging two or more supporting columns side by side, connecting side supporting portions to side surfaces of the supporting columns to connect two adjacent supporting columns And connecting the at least two support pillars to each other in a hollow space formed by the support column and the side connection portion.

The supporting pillars include a joining groove formed along the major axis on both sides opposite to each other and a first connecting means formed along the major axis on the other side where the joining groove is not formed.

The plate-shaped side connection portion is inserted into one side edge of the joint groove and welded to the side surface of the support column by welding.

The first connecting means formed on the supporting column and the second connecting means formed on the central connecting portion are constituted by hooking grooves or hooking protrusions mutually interposed between the supporting pillar and the central connecting portion as the hooking protrusion is inserted into the hooking groove, Jamming is performed.

The details of other embodiments are included in the detailed description and drawings.

1 is a view showing an offshore structure.
2 is a view showing a support pipe constituting the leg of the offshore structure shown in Fig.
3 is a view illustrating an apparatus for supporting an offshore structure according to an embodiment of the present invention.
4 is a cross-sectional view of an offshore structure support apparatus according to an embodiment of the present invention.
5 and 6 are cross-sectional views illustrating an apparatus for supporting an offshore structure according to another embodiment of the present invention.
7 is a view showing a support column according to an embodiment of the present invention.
8 is a view illustrating a center connection portion according to an embodiment of the present invention.
9 is a view showing a center connection part according to another embodiment of the present invention.
10 is a flowchart illustrating a method of manufacturing an offshore structure supporting apparatus according to an embodiment of the present invention.
11 is a view for explaining the step S1010 of FIG.
Figs. 12 to 14 are diagrams for explaining the step S1020 of Fig.
FIGS. 15 and 16 are views for explaining the step S1030 of FIG.
17 is a view illustrating first connecting means and second connecting means according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

1 is a view showing an offshore structure.

The offshore structure can be installed not only on the sea but also on the seabed. Depending on its depth, it can be divided into fixed sea structure, semi-submergible sea structure and floating sea structure.

The fixed offshore structure has a form to support the hull by using a fixed structure connecting the sea floor to the offshore structure. The semi-submergible offshore structure or the floating offshore structure is supported by the buoyant body, It has a form to lock down.

Fixed offshore structures include fixed platforms or jack-up rigs. The fixed platform represents a structure that is fixed to a file embedded in the seabed, and the jack-up rig has a separately configured leg and represents a structure in which the leg is fixed to the sea floor. Thus, a stationary offshore structure represents a structure that is secured to a specific location on the sea level by securing steel columns, such as piles or legs, to the seafloor.

Fixed offshore structures can be used to pull crude oil or gas from the seabed while fixedly located at certain points in the sea.

1 shows a jack-up rig 10 of a stationary offshore structure with legs 11 being shown.

2 is a view showing a support pipe constituting the leg of the offshore structure shown in Fig.

The legs 11 of the offshore structure 10 may include a support pipe 20 extending from the offshore structure 10 to the seabed and a reinforcement pipe connecting the support pipes, Fig.

Referring to FIG. 2, the support pipe 20 may include a support portion 21 and a side connection portion 22.

The support portion 21 is a steel plate having a thickness of a predetermined size or more and plays a role of supporting the offshore structure 10. Therefore, even if the load of the offshore structure 10 is transmitted to the support portion 21, it is preferable that the shape of the support portion 21 be maintained without being deformed.

The side connecting portion 22 serves to supplement the supporting force of the supporting portion 21 so that the shape of the supporting portion 21 is maintained. The side connection portion 22 may have a semicylindrical shape as an iron plate and may be welded to both sides of the support portion 21 by welding.

On the other hand, the length of the support pipe 20 is determined according to the distance between the sea floor and the sea floor, thereby determining the length of the support portion 21. [ Further, as described above, the support portion 21 has a relatively large volume and weight because it is an iron plate having a thickness of a certain size or more. Accordingly, a great deal of cost is incurred in transporting the support portion 21 to a place for assembling the support pipe 20. [

The supporting part according to the embodiment of the present invention is composed of a plurality of parts, and the supporting part is formed by assembling, so that the transportation cost can be reduced.

FIG. 3 is a view showing an apparatus for supporting an offshore structure according to an embodiment of the present invention, and FIG. 4 is a sectional view of an offshore structure supporting apparatus according to an embodiment of the present invention.

The offshore structure supporting apparatus 100 of the present invention can be used as a part constituting the leg 11 by performing the role of the support pipe 20 described above and may serve as a file for fixing the fixed platform.

3 and 4, an offshore structure supporting apparatus 100 includes a support post 110, a side connection portion 120, and a center connection portion 130.

The support pillars 110 serve to support the offshore structure 10. The material of the support pillars 110 may be iron, but is not limited thereto. However, even if the load of the offshore structure 10 is transmitted to the support column 110, it is preferable that the support column 110 maintains its shape without being deformed.

Two or more support pillars 110 may be arranged side by side in an offshore structure supporting apparatus 100. The combination of the supporting column 110 and the side connecting portion 120 has a cylindrical shape as a whole, and a plurality of supporting pillars 110 can be disposed along the circumference of the cylinder.

3 and 4, two support posts 110 may be included to constitute the offshore structure support apparatus 100, and three or four support posts 100, as shown in FIGS. 5 and 6, (210, 310) may be included to constitute the marine structure supporting apparatuses (200, 300). The shapes of the side connection portions 120, 220 and 320 and the center connection portions 130, 230 and 330 may be determined depending on the number of the support pillars 110, 210 and 310. Specifically, the shape of the side connection portions 120, 220, and 320 can be determined so that the overall shape has a cylindrical shape, and one central connection portion 130, 230, The shape of the central joints 130, 230, and 330 can be determined.

Hereinafter, an explanation will be given mainly to an offshore structure supporting apparatus 100 composed of two supporting columns 110.

The side connection part 120 is joined to the side surface of the support column 110 and serves to connect the two support pillars 110 adjacent to each other. Accordingly, the shape of the support column 110 is maintained and the support force of the support column 110 can be complemented.

In the case where there are two support pillars 110, the side connection portion 120 may have a semi-cylindrical shape as shown in FIG. Thus, the combination of the support pillars 110 and the side connection part 120 has a cylindrical shape as a whole. In this case, the shape of the side connection part 120 can be determined so that the combination of the supporting column and the side connection part 120 can have a cylindrical shape as a whole.

The material of the side connection portion 120 may be iron, but is not limited thereto. However, the support pillars 110 and the side connection portions 120 may be joined to each other by welding, and the side connection portions 120 are preferably made of iron.

The central connection part 130 serves to connect two or more support pillars 110 to each other in a hollow space formed by the support pillars 110 and the side connection parts 120. As shown in the figure, the combination of the support pillars 110 and the side connection part 120 has a cylindrical shape as a whole, and the space is separated from the inside and the outside of the cylinder. The central connection part 130 connects the support columns 110 to each other within the cylinder to prevent deformation of the support column 110 according to the load of the offshore structure 10. [ Specifically, the center connection portion 130 can prevent the support posts 110 from being deformed by the load of the offshore structure 10, thereby changing the distance between the support posts 110. [

7 is a view showing a support column according to an embodiment of the present invention.

Referring to FIG. 7, the support column 110 may have a joint groove 111 and a connecting means 112.

The joining grooves 111 may be formed along the major axis on opposite sides of the support pillars 110. The shape of the joint groove 111 may be a semi-cylindrical shape, but is not limited thereto.

The bonding grooves 111 serve to improve bonding efficiency between the support pillars 110 and the side connection portions 120. The plate-like side connection portion 120 is connected to the side surface of the support column 110 by welding with one side edge inserted into the connection groove 111. The side connection portion 120 is in contact with the side connection portion 120 The area of the weld bead is increased. As a result, the supporting column 110 and the side connecting portion 120 can be more firmly joined.

The connecting means 112 may be formed along the major axis on the other side where the connecting groove 111 is not formed. The connecting means 112 is coupled with another connecting means 132 formed at the central connecting portion 130 to connect the supporting column 110 and the central connecting portion 130. Hereinafter, the connecting means 112 formed on the support column 110 is referred to as a first connecting means, and the connecting means 132 formed on the central connecting portion 130 is referred to as a second connecting means.

The first connecting means 112 formed on the supporting column 110 and the second connecting means 132 formed on the central connecting portion 130 are constituted by the interlocking grooves or the interlocking protrusions and when the interlocking protrusions are inserted into the interlocking grooves So that engagement between the support column 110 and the center connection part 130 can be performed.

Details of the coupling between the first connecting means 112 and the second connecting means 132 will be described later with reference to FIG. 15 and FIG.

8 is a view illustrating a center connection portion according to an embodiment of the present invention.

Referring to FIG. 8, the central connecting portion 130 includes a body 131 and a second connecting means 132. The body 131 serves to prevent deformation of the support pillars 110 connected to the central connection part 130. [ Specifically, the body 131 can prevent the distance between the support pillars 110 from being changed by deforming the support pillars 110. For this, the body 131 is preferably made of a material having a strength greater than a certain level.

The second connection unit 132 is coupled with the first connection unit 112 formed on the support column 110 to connect the center connection unit 130 to the support column 110. For example, the first connecting means 112 may have the form of a locking groove (see FIG. 7), and the second connecting means 132 may have the form of a locking protrusion. In this case, the connection between the central connection portion 130 and the support column 110 can be performed by inserting the second connection means 132, which is a latching protrusion, into the first connection means 112, which is a latching groove.

It is preferable that the engaging protrusion and the engaging groove are formed in a similar size after the engaging projection is inserted into the engaging groove and the entrance of the engaging groove is formed smaller than the engaging projection.

The material of the center connection part 130 may be iron, and the body 131 and the second connection part 132 may be integrally formed as shown in FIG. That is, the molten metal may be injected into the metal mold having the shape of the central connecting portion 130, so that the central connecting portion 130, in which the body 131 and the second connecting means 132 are integrated, can be manufactured.

According to another embodiment of the present invention, the body 131 constituting the central connection part 130 and the second connection part 132 may be separately provided and then combined.

9 is a view showing a center connection part according to another embodiment of the present invention.

Referring to FIG. 9, the central connecting portion 140 may include a body 141 and a second connecting means 142.

The body 141 and the second connection means 142 may be separately provided and may be combined with each other to form one central connection portion 140. [ For example, the body 141 of the same material and the second connection means 142 may be joined by welding, and the second connection means 142 may be formed on the side surface of the body 141 using welding beads It is possible.

Since the body 141 and the second connecting means 142 are separately provided, it is easier to transport the body 141 and the second connecting means 142.

Hereinafter, the integral central connection portion 130 will be mainly described.

10 is a flowchart illustrating a method of manufacturing an offshore structure supporting apparatus according to an embodiment of the present invention.

In order to manufacture an offshore structure supporting apparatus 100, first, the support pillars 110 may be disposed. Specifically, two or more support pillars 110 may be arranged side by side on the ground.

When the supporting pillars 110 are disposed, the side connecting portions 120 are joined to the side surfaces of the supporting pillars 110 to connect the two supporting pillars 110 adjacent to each other.

When the side connecting portions 120 are all connected between the supporting pillars 110, the central connecting portion 130 is connected to the supporting pillars 110.

Hereinafter, each step included in FIG. 10 will be described in detail.

11 is a view for explaining the step S1010 of FIG.

Referring to FIG. 11, two or more support pillars 110 may be disposed. FIG. 11 shows that two support pillars 110 are disposed on the ground, but more than one support pillars 110 may be disposed. When the number of the support pillars 110 is three or more, the support pillars 110 may be disposed at regular intervals by a separate arrangement means (not shown).

In arranging the support pillars 110, the support pillars 110 may be arranged such that the first connection means 112 are opposed to each other. In addition, the distance between the support pillars 110 can be determined according to the size of the center connection part 130. [ Specifically, the distance between adjacent surfaces of the support pillars 110 may be the same as or similar to the width of the body 131 of the center connection portion 130.

Figs. 12 to 14 are diagrams for explaining the step S1020 of Fig.

12 and 13, one side edge of the side connection part 120 is inserted into the joint groove 111 of the support column 110 and the side connection part 120 is welded to the support column 110 by welding have.

A portion of the side connection portion 120 is inserted into the welding groove 111 and the welding is performed so that the welding bead 400 contacting the supporting column 110 and the side connecting portion 120, The area is increased.

The welding operation for joining the support column 110 and the side connection portion 120 can be performed at both the a position and the b position. That is, the operator can perform the welding operation along the major axis direction of the support column 110 and the side connection portion 120 at the position a and the position b.

In the case where the shape of the support portion 21 is as shown in Fig. 2, since the space at the position a is not large enough, the welding operation can be performed only at the b position and the welding operation can not be performed at the a position. On the other hand, since the welding operation is performed in both the a position and the b position, the coupling force between the support column 110 and the side connection portion 120 can be enhanced.

Referring to FIG. 14, after one side connecting portion 120 is coupled, the remaining side connecting portions 120 are coupled.

The welding operation can be performed for both the a-position and the b-position with respect to the remaining side connecting portions 120 as well.

FIGS. 15 and 16 are views for explaining the step S1030 of FIG.

Referring to FIGS. 15 and 16, when the coupling between the support column 110 and the side connection part 120 is completed, the central connection part 130 is connected to the support column 110.

The connection between the support pillars 110 and the center connection part 130 can be performed by inserting the second connection part 132 of the center connection part 130 into the first connection part 112. Specifically, after inserting one end of the second connecting means 132 into the inlet of the first connecting means 112, the central connecting portion 130 is slid in the longitudinal direction, (130) can be performed. The cross section formed along the major axis direction of the first connection means 112 is the same so that one end of the second connection means 132 is inserted through the entrance of the first connection means 112 and slidable to the opposite side exit, Likewise, the cross section formed along the longitudinal direction of the second connecting means 132 may be the same.

Since the second connecting means 132 as the engaging protrusion is inserted into the first connecting means 112 as the engaging groove, the two supporting posts 110 can be connected through the central connecting portion 130 without performing a separate welding operation such as welding So that they can be connected to each other.

Although the first connecting means 112 has the shape of the latching groove and the second connecting means has the shape of the latching protrusion, the first connecting means has the shape of the latching protrusion, It may have the shape of a groove.

17 is a view illustrating first connecting means and second connecting means according to another embodiment of the present invention.

17, the first connecting means 512 formed on the support column 510 has a latching protrusion shape and the second connecting means 532 formed on the central connecting portion 530 has a latching groove shape Respectively.

In this case, after inserting one end of the first connecting means 512 into the inlet of the second connecting means 532, the central connecting portion 530 is slid in the longitudinal direction to push the supporting column 510 and the central connecting portion 530 may be performed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100, 200, 300: Marine structure support device
110, 210, 310: support pillars
120, 220, 320:
130, 140, 230, 330:
111:
112, 512: first connection means
131, 141: Body
132, 142, 532: a second connecting means
400: weld bead

Claims (8)

Two or more support columns disposed side by side;
A side connection portion joined to a side surface of the support column and connecting adjacent two support pillars; And
And a central connecting portion connecting the two or more support pillars to each other in a hollow space formed by the supporting column and the side connecting portion,
Wherein the support column has first connecting means along a long axis,
Wherein the first connecting means and the second connecting means formed on the central connecting portion are constituted by hooking grooves or hooking projections mutually,
Wherein the engaging protrusion is inserted into the engaging groove to engage the supporting column and the center connecting portion as the central connecting portion is slid in the longitudinal direction of the supporting column. The method according to claim 1,
Wherein the supporting columns have joint grooves along the major axis on opposite sides of the other side where the first connecting means is not formed. 3. The method of claim 2,
Wherein the plate-like side connection part is inserted into one side edge of the joint groove and welded to a side surface of the support column by welding. delete Arranging two or more support columns side by side;
Connecting the side connecting portions to the side surfaces of the supporting columns to connect the two adjacent supporting columns; And
And connecting the two or more support pillars to each other using a center connection portion in a hollow space formed by the support column and the side connection portion,
Wherein the support column has first connecting means along a long axis,
Wherein the first connecting means and the second connecting means formed on the central connecting portion are constituted by hooking grooves or hooking projections mutually,
Wherein the engaging protrusion is inserted into the engaging groove to engage the supporting column and the center connecting portion as the central connecting portion is slid in the longitudinal direction of the supporting column. 6. The method of claim 5,
Wherein the support column has a joint groove along a major axis on opposite sides of the other side of the other side where the first connection means is not formed. The method according to claim 6,
Wherein the plate-like side connection portion is joined to a side surface of the support column by welding with one side edge inserted into the joining groove. delete

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