KR20170014374A

KR20170014374A - Anchoring apparatus

Info

Publication number: KR20170014374A
Application number: KR1020150107582A
Authority: KR
Inventors: 임인규
Original assignee: 삼성중공업 주식회사
Priority date: 2015-07-29
Filing date: 2015-07-29
Publication date: 2017-02-08
Also published as: KR101722176B1

Abstract

An anchoring device is disclosed. According to an aspect of the present invention, there is provided an anchor apparatus including an anchor body having a hollow portion formed therein, an anchor head detachably coupled to the anchor body to open and close the hollow portion, a first connecting line connecting the anchor body and the anchor head, And at least one plate coupled to the anchor head or first connection line so as to extend radially outwardly of the anchor body when the anchor head is detached.

Description

ANCHORING APPARATUS

The present invention relates to an anchoring device.

To collect marine resources such as crude oil or natural gas, a variety of offshore structures are built onshore. These marine structures float on the sea, so it is necessary to restrict the movement or fix the position of the marine structure, and accordingly, the foundation for supporting the marine structure is installed on the submarine ground.

The bases supporting marine structures can be classified in various ways according to the installation method. A foundation pile or anchor installed inthe bottom of the seabed can be driven pile, suction pile, drag anchor or drop anchor or torpedo anchor depending on the way of penetrating into the seabed. And so on.

Since the foundation pile or anchor penetrated into the seabed to support the offshore structure is installed in water, construction time and cost may be considerable depending on the depth of the pile or anchor, or the characteristics of the seabed.

Published patent application No. 10-2012-0064774 (published on June 20, 2012)

Embodiments of the present invention are intended to provide an anchoring device capable of improving resistance to pulling force.

According to an aspect of the present invention, there is provided an anchor body including an anchor body having a hollow portion formed therein, an anchor head detachably coupled to the anchor body to open and close the hollow portion, a first connecting line connecting the anchor body and the anchor head, And at least one plate coupled to the anchor head or the first connection line so as to extend radially outwardly of the anchor body when the anchor head is disengaged.

Here, the anchor body may include a body portion formed in a columnar shape and a tip portion formed in a hemispherical or conical shape and coupled to one end of the body portion, and the hollow portion may be formed in a cylindrical shape in the body portion.

The at least one plate may be formed in a curved surface shape corresponding to the shape of the inner peripheral surface of the hollow portion.

The anchor head further includes an installation line coupled to the anchor head, wherein the anchor head can be disengaged from the anchor body by a signal applied through the installation line.

The anchor head further includes a mooring line coupled to the anchor head, wherein the anchor head can be separated from the anchor body by the tension of the mooring line.

And each of the at least one plate may be coupled to the first connection line by a plurality of second connection lines branched at the first connection line.

According to the embodiments of the present invention, since the plate accommodated in the anchor body and extending radially outwardly from the anchor body when the anchor body is completely inserted is included, the contact area in the underwater floor is increased, The resistance against the pulling force of the device can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a manner in which an anchoring apparatus according to an embodiment of the present invention is introduced into a seabed. FIG.
2 is a view showing an appearance of the anchoring device shown in Fig.
3 is a perspective view showing an anchoring apparatus according to an embodiment of the present invention;
4 is a view showing a state in which the plate is drawn out and radially expanded in the anchoring device shown in Fig.
5 is an enlarged view of the plate in the anchoring device shown in Fig.
6 is a view showing a state in which the anchoring apparatus shown in Fig. 3 is introduced into a seabed. Fig.
7 is a view showing a state in which the plate of the anchoring device shown in Fig. 6 is expanded. Fig.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, when a component is referred to as "comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise. Also, throughout the specification, the term "on" means to be located above or below the object portion, and does not necessarily mean that the object is located on the upper side with respect to the gravitational direction.

In addition, the term " coupled " is used not only in the case of direct physical contact between the respective constituent elements in the contact relation between the constituent elements, but also means that other constituent elements are interposed between the constituent elements, Use them as a concept to cover each contact.

It is also to be understood that the terms first, second, etc. used hereinafter are merely reference numerals for distinguishing between identical or corresponding components, and the same or corresponding components are defined by terms such as first, second, no.

The sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an embodiment of an anchoring apparatus according to the present invention will be described in detail with reference to the accompanying drawings. In the following description with reference to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, A duplicate description will be omitted.

FIG. 1 is a view showing a manner in which an anchoring apparatus according to an embodiment of the present invention is introduced into a seabed ground, and FIG. 2 is a view showing an outer appearance of the anchoring apparatus shown in FIG.

1 and 2, an anchoring apparatus 100 according to the present embodiment is an apparatus for restricting or fixing the position of an offshore structure or ship 50 floated on the sea, The anchor body 110 supported in the seabed ground S by the intrusion and friction with the material in the ground and the mooring line for transmitting the fixing force or supporting force by the anchor body 110 to the offshore structure or the ship 50 (M).

As shown in FIG. 1, the anchor body 110 is free fall from the bottom surface at a predetermined height H, and is introduced into the seabed ground S. The deeper penetration of the anchor body 110 into the seabed ground S can increase the resistance to the vertical load or the pulling force applied to the anchor body 110. [

The anchor body 110 can be introduced into the seabed ground S by potential energy having a predetermined height H from the sea floor and the larger the potential energy of the anchor body 110 Can be penetrated deeper into the seabed sole (S).

However, the anchor body 110 receives a resistance force generated by the friction with the seawater during the falling of the water, penetrates the seabed ground S and transmits the resistance force generated by the friction with the surrounding ground during the movement in the ground Receive. The depth of penetration of the anchor body 110 can be increased by reducing the frictional force generated for different reasons in the anchor body 110 and increasing the initial potential energy of the anchor body 110.

It is possible to increase the drop height of the anchor body 110 in order to increase the potential energy of the anchor body 110. This can increase the accuracy of the position where the anchor body 110 should be intruded, .

One of the other measures for increasing the potential energy is to design the weight of the anchor body 110 to be large. For example, the anchor body 110 may be formed of a material having a high specific gravity, or may be filled with a material having a high specific gravity within the anchor body 110, or a ballast may be inserted into the anchor body 110 You can fill it in.

Referring to FIG. 1, an anchoring apparatus 100 according to an embodiment of the present invention will be described in detail. First, an anchoring apparatus 100 is mounted on a submarine ground S) to a point spaced apart by a predetermined height (H). That is, the anchor body 110 is positioned at the dropping point.

The height H of the anchor body 110 separated from the seabed ground S or the height of the anchor body 110 depends on the magnitude of the vertical load applied to the anchor body 110 and the accuracy of the penetration depth or penetration point of the anchor body 110 The design can be changed appropriately according to the tolerance range.

The drop line D and the mooring line M are coupled to the anchor body 110 descended from the seabed ground S to a predetermined height H. [ The mooring line M is a line connecting the anchor body 110 and the offshore structure or the ship 50 penetrated into the seabed ground S so that the depth of the installation area and the penetration depth of the anchor body 110 are considered And the drop line D may be constructed in consideration of the required drop height of the anchor body 110. [

The anchor body 110 can freely fall by its own weight and is penetrated into the seabed sole S through the seabed ground S by cutting the fall line D coupled to the anchor body 110. [ The mooring line M is connected to the anchor body 110 penetrated into the seabed ground S and the marine structure or the ship 50 is fixed or restricted in its movement through the mooring line M .

As described above, the anchor body 110 receives a resistance force due to friction with seawater during dropping in the water, and the vertical movement of the anchor body 110 due to the current flowing around the anchor body 110 during the drop The accuracy of the installation area may be degraded.

As shown in FIG. 2, the anchor body 110 may be formed in a torpedo or streamlined structure that receives less resistance in the fluid in order to reduce the resistance force applied to the anchor body 110 during dropping in water.

In addition, the anchor apparatus 100 according to the present embodiment may further include a wing portion 200 radially disposed on an outer circumferential surface of the anchor body 110 to maintain the anchor body 110 in a vertical position. That is, the wing portion 200 can restrict the inclination of the anchor body 110 while the anchor body 110 falls.

The center of gravity of the anchor body 110 is positioned at the tip of the anchor body 110 rather than the center of gravity of the anchor body 110 by forming the end of the anchor body 110 (the one end of the anchor body first making contact with the underside ground) The verticality of the anchor body 110 can be improved.

FIG. 3 is a perspective view showing an anchoring apparatus according to an embodiment of the present invention, and FIG. 4 is a view showing a state in which a plate is drawn out and radially expanded in the anchoring apparatus shown in FIG.

3 and 4, an anchor apparatus 100 according to the present embodiment includes an anchor body 110, an anchor head 120, a first connection line 130, and a plate 140, (150) and a mooring line (160).

The anchor body 110 is a part forming an overall appearance of the anchor apparatus 100 according to the present embodiment and includes a hollow portion 115 formed therein and is introduced into the seabed by the falling method. The anchor body 110 penetrates the bottom of the seabed and penetrates into the bottom of the seabed so that it can be supported in the seabed so as to resist the pulling force applied to the anchor body 110 by the friction with the surrounding ground.

The hollow portion 115 formed inside the anchor body 110 may extend along the longitudinal direction L of the anchor body 110 and one end of the hollow portion 115 may be opened . The hollow portion 115 may be formed integrally along the longitudinal direction L of the anchor body 110 or may be formed along the longitudinal direction L only in a part of the anchor body 110.

Meanwhile, the anchor body 110 may include a body portion 111 and a tip portion 112. The body portion 111 is formed in a columnar shape and the distal end portion 112 is formed in a hemispherical or conical shape to be coupled to one end of the body portion 111. [ The body portion 111 and the tip portion 112 may be formed separately and joined together through a mechanical fastening method or a joining method such as welding, or may be integrally formed to form a single body.

The anchor body 110 has a longitudinal direction L and a radial direction r intersecting therewith. The body portion 111 is formed to extend in the longitudinal direction L of the anchor body 110, Is coupled to or formed at one end of the body portion 111 along the longitudinal direction L of the anchor body 110. Meanwhile, the anchor body 110 may be introduced into the seabed ground in the longitudinal direction L of the anchor body 110.

The hollow portion 115 may be formed in a cylindrical shape inside the body portion 111. That is, the hollow part 115 may be formed to extend in the longitudinal direction L in the body part 111 of the anchor body 110, and the cross-sectional shape of the hollow part 115 may be a Sectional shape.

The tip portion 112 may be coupled to one end of the body portion 111 and an opening may be formed at the other end of the body portion 111. At this time, the hollow part 115 formed inside the body part 111 can be opened to the outside through the opening formed in the tartan of the body part 111.

The tip portion 112 is a portion that is first penetrated into the bottom of the seabed when the anchor body 110 penetrates into the bottom of the seabed. The front end portion 112 is formed into a tapered shape toward a hemispherical, conical, or open end so as to easily penetrate into the bottom of the seabed through the bottom of the anchor body 110, that is, the anchor body 110 of the anchor body 110 .

In addition, since the shape of the tip portion 112 is formed in a tapered shape toward the hemisphere, cone, or tip, the resistance against the fluid generated in the anchor body 110 during dropping in water can be reduced.

The anchor head 120 is detachably coupled to the anchor body 110 to open and close the hollow portion 115 formed in the anchor body 110. When the anchor body 110 includes the body portion 111 and the tip portion 112 and the hollow portion 115 is formed in the body portion 111, the tip portion 112 is formed at one end of the body portion 111, And the anchor head 120 is coupled to the other end of the body part 111 so that the anchor head 120 can cover the hollow part 115 formed in the body part 111. [

The diameter of the anchor head 120 may be substantially the same as the diameter of the anchor body 110 to which the anchor head 120 is coupled. The anchor head 120 can be coupled to the anchor body 110 to close the hollow portion 115 formed in the anchor body 110 and the anchor head 120 can be separated from the anchor body 110, So that the portion 115 can be opened.

The first connection line 130 connects the anchor body 110 and the anchor head 120 to prevent the anchor head 120 from being separated from the anchor body 110. The anchor head 120 may be detached from the anchor body 110, but is not allowed to be detached from the anchor body 110. That the anchor head 120 is separated from the anchor body 110 means that the physical contact between the anchor head 120 and the anchor body 110 is released.

The first connection line 130 connects the anchor head 120 and the anchor body 110 such that the anchor head 120 is positioned within a certain range from the anchor body 110. One end of the first connection line 130 is coupled to the anchor body 110 and the other end of the first connection line 130 is coupled to the anchor head 120. The first connection line 130 may be coupled to the anchor body 110 and the anchor head 120 by various methods.

For example, the first connection line 130 may be coupled to the anchor body 110 and the anchor head 120, respectively, or may be coupled to the anchor body 110 and the anchor head 120, A lug for coupling with the first connection line 130 is formed, and the first connection line 130 can be fastened to the lug. The first connection line 130 may be a chain, a cable, or a wire.

The first connection line 130 may be received in the hollow portion 115 formed in the anchor body 110 before the anchor head 120 is separated from the anchor body 110. The first connection line 130 may be received in the hollow portion 115 and may not be exposed to the outside when the anchor body 110 is dropped. The length of the first connection line 130 may be longer than the length of the anchor head 120, The allowable separation distance of the body 110, and the like.

The plate 140 is accommodated in the hollow portion 115 formed in the anchor body 110 and the anchor head 120 is detached from the anchor body 110 to be drawn out of the anchor body 110, To the anchor head 120 or the first connection line 130 so as to expand radially by friction with the anchor head 120.

As described above, the anchor body 110 penetrated into the seabed ground can resist the vertical load or the pulling force applied to the anchor body 110 by the friction with the surrounding ground, Or to limit the movement or position of an offshore structure or vessel floating on the sea.

The anchor body 110 can increase the depth of penetration into the seabed so that the resistance against the pulling force can be improved and the contact area between the anchor body 110 and the surrounding ground can be increased to improve the resistance against the pulling force.

However, if the size of the anchor body 110 is increased, the manufacturing cost of the anchor body 110 is increased, and when the anchor body 110 is dropped, The resistive force due to friction with sea water increases, and when penetrating into the seabed, the penetration depth can be reduced due to the increase of resistivity.

Since the anchor body 100 according to the present embodiment includes the plate 140 that is drawn out to the outside after the anchor body 110 is inserted into the bottom of the sea floor, The area in contact with the surrounding ground can be increased.

3 and 4, the plate 140 is inserted into the hollow portion 115 formed inside the anchor body 110 during the dropping of the anchor body 110 in the water and into the bottom of the anchor body 110 (See FIG. 3), and when the penetration of the anchor body 110 into the bottom of the seabed is completed, it is drawn out to the outside of the anchor body 110 (see FIG. 4) have.

The plate 140 may be coupled to the anchor head 120 such that the anchor head 120 is separated from the anchor body 110 or may be selectively coupled to the first connection line 130 connected to the anchor head 120. [ . That is, the plate 140 may be directly coupled to the anchor head 120 or may be indirectly coupled to the anchor head 120 through the first connection line 130.

The plate 140 is separated from the anchor body 110 by being separated from the anchor body 110 to be drawn out to the outside of the anchor body 110 and can be radially expanded by friction with the surrounding ground of the anchor body 110 have.

4, when the plate 140 is drawn out to the outside of the anchor body 110 and radially expanded, the contact area with the surrounding ground is increased to increase the bearing capacity of the anchor body 110 in the ground , So that the resistance of the anchoring device 100 to the pulling force can be improved.

Before the anchor head 120 is separated from the anchor body 110, the contact area of the anchor head 120 with the surrounding ground is limited to the area of the outer surface of the anchor body 110, The plate 140 accommodated in the anchor body 110 is drawn out to the outside of the anchor body 110 so as to be radially expanded so that not only the area of the outer circumferential surface of the anchor body 110 but also the inner circumferential surface of the anchor body 110 Since the contact area can be as large as the area of the plate 140 and the area of the plate 140, the frictional force with the surrounding ground can be greatly improved. As a result, the total supporting force of the anchoring device 100 Can be improved.

The anchor apparatus 100 according to the present embodiment may further include an installation line 150 coupled to the anchor head 120 and further includes a mooring line 160 coupled to the anchor head 120 It is possible.

The anchor head 120 is connected to the anchor body 110 and the anchor head 120 through an installation line 150. The installation line 150 connects the anchor body 110 with the anchor head 120, The engagement with the anchor body 110 can be released.

The anchor head 120 stops the anchor body 110 in the seabed so that the penetration depth of the anchor body 110 is determined before the anchor body 110 is dropped in the water and before the penetration of the anchor body 110 into the seabed ground is completed So that it can not be separated from the anchor body 110 before it is assembled.

The anchor head 120 may be fixed to the anchor body 110 through various methods so as to maintain the engagement with the anchor body 110. For example, the anchor head 120 may be coupled to the anchor body 110 by a fastening member, or may be fixed to the anchor body 110 by a magnetic force through an electromagnet, Can be fixed.

The installation line 150 may apply an unlocking signal according to the coupling method to release the coupling between the anchor head 120 and the anchor body 110. [ For example, when the anchor head 120 is coupled and fixed to the anchor body 110 by the magnetic force through the electromagnet, the supply of the current flowing through the electromagnet is cut off so that the coupling between the anchor head 120 and the anchor body 110 Can be released.

The mooring line 160 is coupled to the anchor head 120 and the anchor head 120 can be separated from the anchor body 110 by pulling the mooring line 160. The anchor head 110 is disengaged from the anchor body 110 by a signal applied through the installation line 150 and is released from the anchor body 110 by the pulling force applied to the anchor head 120 through the mooring line 160. [ (Not shown).

5 is an enlarged view of the plate in the anchoring device shown in Fig.

Referring to FIG. 5, the plate 140 may be formed in various shapes, but may be formed to correspond to the shape of the inner circumferential surface of the hollow portion 115 in which the plate 140 is received. In this case, the plate 140 can be more efficiently accommodated in the hollow portion 115, and even when the plate 140 is drawn out to the outside of the anchor body 110 through the hollow portion 115, So that it can be more easily drawn out without being in contact with the inner circumferential surface of the housing.

For example, when the hollow portion 115 in which the plate 140 is received is formed in a cylindrical shape, the plate 140 may be formed in a curved shape so as to correspond to the shape of the inner peripheral surface of the hollow portion 115. In this case, the plate 140 includes convex and concave surfaces facing each other. The plate 140 may be disposed so that the convex surface of the plate 140 faces the inner circumferential surface of the hollow portion 115 and be accommodated in the hollow portion 115.

3 and 4, a plurality of plates 140 may be provided, and each of the plurality of plates 140 may include a plurality of second connection lines 135 branched from the first connection line 130, To the first connection line 130, respectively.

The second connection line 135 is coupled to the first connection line 130 in a branched configuration in the first connection line 130 and each of the plurality of plates 140 is connected to the first connection line 130 through the second connection line 135. [ And may be coupled to the connection line 130. The second connection line 135 may be branched at different points of the first connection line 130 and only a part of the plurality of second connection lines 135 may be branched from the first connection line 130 130 at the same point.

The second connection line 135 may be received in the hollow portion 115 formed in the anchor body 110 before the anchor head 120 is separated from the anchor body 110, . The second connection line 135 may be received in the hollow portion 115 and may not be exposed to the outside when the anchor body 110 falls, and the lengths of the second connection lines 135 may be different from each other.

Meanwhile, as shown in FIG. 5, each of the plurality of plates 140 may be coupled to the second connection line 135 at a plurality of points. Each of the plurality of plates 140 may be coupled with the second connection line 135 at a plurality of points to maintain a more stable arrangement structure.

Specifically, when the plate 140 is coupled with the second connection line 135 at the concave surface of the plate 140, it can receive a greater resistance force in the ground. However, when the plate 140 is coupled with the second connection line 135 at a single point, the plate 140 is reversed in the process of being radially extended from the hollow portion 115, 140 may be arranged to receive frictional resistance in the ground.

When the plate 140 is coupled to the second connection line 135 at a plurality of points, it is possible to limit the reversal of the arrangement of the plate 140 in the process of extending the plate 140 radially outwardly, 2 connection line 135 may further include an auxiliary connection line 137 that is branched at one end and is coupled to each vertex of the plate 140.

FIG. 6 is a view showing a state in which the anchoring apparatus shown in FIG. 3 is introduced into the seabed ground, and FIG. 7 is a view showing a state in which the plate of the anchoring apparatus shown in FIG. 6 is expanded.

A method of installing the anchoring apparatus 100 according to the present embodiment will be described with reference to Figs. 6 and 7. Fig.

The anchor body 110 including the front end portion 112 and the body portion 111 and having a hollow portion formed therein is inserted into the seabed ground S by a falling method. An anchor head 120 covering a hollow portion formed inside the anchor body 110 is coupled to the rear end of the anchor body 110. An installation line 150 and a mooring line 160 are formed in the anchor head 120, .

When the anchor body 110 is completely inserted, a signal for disconnecting the anchor head 120 and the anchor body 110 is applied through the installation line 150, and the anchor body 120 and the anchor body 110 are separated from each other, The anchor head 120 is separated from the anchor body 110 by pulling the mooring line 160.

When the anchor head 120 is separated from the anchor body 110, the first connection line 130 and the first connection line 130 housed in the anchor body 110 or the plate coupled to the anchor head 120 (140) is drawn out of the anchor body (110). When the mooring line 160 is further pulled, the plate 140 drawn out to the outside can be radially expanded by the friction with the surrounding ground.

Since the anchoring device 100 according to the present embodiment changes its shape after the penetration into the seabed ground S is completed and the contact area with the material in the ground increases, the resistance to the pulling force of the anchoring device 100 can be improved And the shape of the anchorage device 100 can be maintained because the shape of the anchorage device 100 is not changed until the intrusion into the seabed ground S is completed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

50: Offshore structures or ships, etc. 100: Anchoring devices
110: anchor body 111:
112: tip portion 115: hollow portion
120: anchor head 130: first connection line
135: Second connection line 137: Secondary connection line
140: Plate 150: Installation line
160: Moirring line 200:

Claims

An anchor body having a hollow portion formed therein;
An anchor head detachably coupled to the anchor body to open and close the hollow portion;
A first connection line connecting the anchor body and the anchor head; And
And at least one plate coupled to the anchor head or the first connection line so as to extend radially outwardly of the anchor body when the anchor head is detached.

The method according to claim 1,
Wherein the anchor body includes:
A body portion formed in a columnar shape; And
And a distal end portion formed in a hemispherical or conical shape and coupled to one end of the body portion,
Wherein the hollow portion is formed in a cylindrical shape in the body portion.

3. The method of claim 2,
Wherein the at least one plate is formed in a curved surface shape corresponding to the shape of the inner peripheral surface of the hollow portion.

4. The method according to any one of claims 1 to 3,
And an installation line coupled to the anchor head,
Wherein the anchor head is disengaged from the anchor body by a signal applied through the installation line.

4. The method according to any one of claims 1 to 3,
And a mooring line coupled to the anchor head,
Wherein the anchor head is separated from the anchor body by the tension of the mooring line.

4. The method according to any one of claims 1 to 3,
Wherein each of the at least one plate is coupled to the first connection line through a plurality of second connection lines branched at the first connection line.