WO2020141797A1

WO2020141797A1 - Buoyancy body for marine structure

Info

Publication number: WO2020141797A1
Application number: PCT/KR2019/018488
Authority: WO
Inventors: 이장섭
Original assignee: 동원철강 주식회사
Priority date: 2019-01-04
Filing date: 2019-12-26
Publication date: 2020-07-09
Also published as: CN113226916A; KR102014812B1

Abstract

The present invention relates to a buoyancy body for a marine structure, which has watertight bulkheads welded therein so as to form independent watertight spaces such that predetermined buoyancy is maintained when the marine structure is damaged. The buoyancy body comprises: a buoyancy tube including a plurality of watertight bulkheads provided in a regular interval along a lengthwise direction thereof to form independent watertight spaces therein so as to provide buoyancy; seawater wave-turning recesses formed at lengthwise opposite end portions of the buoyancy tube as recesses having a predetermined depth from the ends of the end portions to outermost watertight bulkheads, so as to induce waves to be turned after hitting the outermost watertight bulkheads; a plurality of seawater passing holes formed in the circumferential surfaces of the lengthwise opposite end portions of the buoyancy tube through the buoyancy tube to communicate with the seawater wave-turning recesses so as to allow seawater to pass therethrough; and a plurality of fixing hooks installed on opposite outer surfaces or one outer surface of the buoyancy tube.

Description

Buoyant body for offshore structures

The present invention relates to a buoyancy body for offshore structures, and more specifically, the buoyancy body itself is formed of a watertight bulkhead inside and a tube formed with a fixed ring and a connection ring on the outside, so that it can be installed without a separate connection socket as well as when damaged. It relates to a buoyancy body for offshore structures that can maintain a constant buoyancy.

Floating structures floating on the sea are used for a variety of purposes.

Among them, the buzan bridge for docking the ship refers to the buzan bridge, a mooring facility built at the waterside to dock the ship, and a bridge connecting the land and the buzan bridge. It is widely used as a part of port facilities by facilitating docking of ships regardless of fluctuations.

In addition, as a floating structure, there is a cage farm installed on the sea for aquaculture of various marine products.

The floating marine structure is installed on the sea to float in water using a buoyant body made of a hollow tube having a hollow space formed therein.

For example, the floating bridge is made of floating hollow buoyant body made of floating water, and a floor reinforcement plate made of reinforced concrete, steel plate, wood, and resin is placed on top of it, so that passengers can board and unload cargo easily. have.

Since the buoyant bridge is integral with the buoyant body and its upper part is completely sealed with a top plate such as concrete, it has a heavy weight disadvantage and cannot be disassembled after assembly, making it difficult to install the buzan bridge by moving it through land. there is a problem.

Therefore, it is common to provide a plurality of buoyancy pipes, install the buoyancy pipes to be connected to each other by separate connection brackets, and manufacture a floating bridge by combining the bottom bracket with the connection bracket and the buoyancy pipe.

Examples of maritime structures such as floating bridges manufactured using connecting brackets, Patent Registration Nos. 1448948 (brackets for connecting buoyant bodies and floating bridges using them), No. 1536278 (buoyant body support holders for installing additional buoyancy bodies and the same) Marine floating structures used), No. 1806193 (sea floating structures with reduced rolling and improved resilience) are disclosed.

However, the above-described offshore structure has a problem in that the buoyancy body is integrally formed, and when the partial damage to the buoyancy body occurs, the offshore structure itself may sink due to leakage.

To solve this, as shown in Patent Registration No. 1471014 (Buoyant Pipe Connection Socket for Offshore Floating Structures), by connecting and installing multiple buoyancy pipes using a connection socket, it is possible to maintain a constant buoyancy even if a portion of the buoyancy pipe is damaged. The technology has been disclosed.

However, in the case of the above technology, it is possible to maintain a certain buoyancy, but since a connection socket must be provided, the structure is complicated, the production time is long, and there is a problem in that efficiency is not good, such as inconvenience in operation.

In addition, the buoyancy body is easily shaken by seawater movement and waves as it is simply floating in seawater, and especially when the waves collide, its pressure directly acts to cause damage (both end parts and bottom surfaces by shaking) There is a problem in that there is a hole that is severely shaken as well as there is a hole.

The present invention was devised to solve the above-mentioned problems, and the buoyant body having a plurality of watertight spaces has a simple structure without using a separate connection socket by manufacturing a tube body having a plurality of watertight bulkheads formed therein. It can be formed, and by forming seawater wave grooves and seawater passage holes on both circumferential surfaces and both ends, a part of the waves introduced into both ends of the buoyancy tube breaks through and the other part is re-circulated to reduce the power of the secondary waves The idea is to provide a buoyant body for offshore structures.

In addition, in the case of installing the anti-slip plate on the upper surface of the buoyancy tube, the present invention provides an anti-skid plate installed by extruding the anti-skid plate on the upper surface of the buoyancy tube and integrally forming it together with the buoyancy tube. It is to provide a buoyancy body for offshore structures that can be easily manufactured.

The solution of the present invention for achieving the above object is provided with a plurality of watertight bulkheads 11 at regular intervals along the longitudinal direction, the outer circumferential surface is fused to the inner surface to be integrally formed, and the watertight bulkhead 11 A plurality of watertight spaces 12 are independently formed to provide a buoyancy tube 10 to provide buoyancy; It is formed with a groove of a predetermined depth from the end to the outermost watertight bulkhead 11 at both ends in the longitudinal direction of the buoyancy pipe 10, through the both ends of the buoyancy pipe 10 in a state where the lower part is submerged in seawater A seawater breaking groove (20) that induces a wave introduced into the inside to be broken after hitting the outermost watertight bulkhead (11); The buoyancy pipe 10 is formed to pass through the buoyancy pipe to the circumferential surfaces of both end portions in the longitudinal direction of the buoyancy pipe 10 to communicate with the seawater breaking groove 20, and a part of seawater and waves introduced into the seawater breaking groove passes through the buoyancy pipe 10 ) A plurality of seawater passage holes 30 guiding to exit in the circumferential direction; A plurality of buoyancy pipes 10 are installed on both outer surfaces or one outer surface of the buoyancy pipe 10, and the buoyancy pipes and buoyancy pipes that are arranged in parallel in the width direction by passing or binding the connecting means 60 are fixed to each other by connecting or fixing them. When the bottom reinforcement plate 51 is installed on the upper side of the buoyancy pipe 10 and the bottom reinforcement plate 51 is connected to each other to secure the hook (40); consists of.

At this time, the buoyancy tube 10 has a cross section so that the lower portion has an arc shape.

'It is preferably formed in a shape.

Here, the buoyancy pipe 10, by introducing the watertight bulkhead 11 at regular intervals during the extrusion molding process of the pipe forming an outer shape, the entire outer circumferential surface of the watertight bulkhead is fused to the inner surface of the buoyancy pipe while each watertight bulkhead is fused. After forming a plurality of watertight spaces (12) to be formed and cut to a set length, it is produced by cutting so that the seawater breaking grooves (20) are formed on both sides.

On the other hand, an anti-slip plate 50 made of a resin material is installed on the upper surface of the buoyancy tube 10, and the anti-slip plate 50 is integral with the buoyancy tube through extrusion molding on the upper surface of the buoyancy tube 10. It is preferable to form.

According to the buoyant body for the offshore structure having the above-described configuration, it is possible to provide a plurality of watertight spaces in the buoyancy pipe without the use of a connection socket, so that it is easy to manufacture and the structure is simple, thereby significantly reducing the production cost. There is.

In addition, as the seawater breaking groove and the seawater passing hole are formed on both sides and both sides of the buoyancy pipe, they are effectively broken even if the waves collide, and some are escaped through the seawater passing hole, and some are reverted through the seawater breaking groove and secondary. The strength of the wave is reduced or canceled while colliding with the wave coming in, and the seawater moves smoothly while being submerged in the seawater, so that the flow, such as rolling, is minimized, and the floating state can be more stably maintained. It has the effect of preventing damage.

In addition, when the anti-slip plate is installed on the upper surface of the buoyancy tube, the anti-slip plate is extruded on the produced buoyancy tube and integrally formed together, so that it can be easily produced in a short time and can also reduce manufacturing cost. .

1 is a perspective view of a buoyancy body for a marine structure according to the present invention,

2 is a cross-sectional view taken along line A-A in FIG. 1,

Figure 3 is a cross-sectional view of the water-tight bulkhead of the'T' fusion according to the invention,

4 is a cross-sectional view taken along line B-B of FIG. 1,

Figure 5 is a connection state in the width direction of the buoyancy for offshore structures according to the present invention,

Figure 6 is a longitudinal connection state of the buoyancy body for offshore structures according to the invention,

Figure 7 is a state diagram integrally formed by extruding a non-slip plate on the upper surface of the buoyancy tube according to the present invention,

Figure 8 is a state diagram showing an embodiment of a floating bridge is installed buoyancy body according to the present invention.

Hereinafter, a buoyant body for a marine structure according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 8, the buoyancy body for offshore structures according to the present invention is a buoyancy body for floating buoyancy by providing buoyancy so that a marine structure such as a floating pier or aquaculture can be installed on the sea.

The buoyancy body includes a buoyancy tube 10 having a plurality of watertight spaces 12 formed therein, a seawater swelling groove 20 formed on both sides of the buoyancy tube 10, and a seawater swelling groove 20. It consists of a seawater passage hole 30 formed in communication and a fixing ring 40 formed on the outer surface of the buoyancy tube 10.

The buoyancy pipe 10 is formed with a plurality of watertight bulkheads 11 at regular intervals along the longitudinal direction therein to form a plurality of watertight spaces 12 therein.

It is preferable that the watertight bulkhead 11 is formed by drawing inside during the production of the tube body forming the buoyancy tube 10.

That is, in the process of extruding a pipe forming an external shape, the watertight bulkhead 11 is introduced into the inside at regular intervals so that the entire outer circumferential surface of the watertight bulkhead is fused to the inner surface of the tube body, so that a plurality of watertight spaces between each watertight bulkhead ( 12) is to form the tube body to be formed, and cut the molded tube body to a predetermined length to produce the buoyancy tube 10.

The plurality of watertight spaces 12 are formed by the watertight bulkhead 11, so that even if a part of the buoyancy pipe is flooded and the watertight space of the damaged part is flooded, the buoyancy is maintained by the remaining watertight spaces, thereby preventing sinking. .

Here, the watertight bulkhead 11 may have a cross-sectional shape of'┃' as shown in FIG. 2 or a'T' shape as shown in FIG. 3.

When the watertight bulkhead 11 is formed in a'T' type, it is for reinforcing the upper portion of the buoyancy pipe 10, and when a considerable pressure is applied from the upper side of the buoyancy pipe, such as when a lot of load is loaded depending on the application. This is to prevent damage to the buoyancy tube.

As such, the watertight bulkhead 11 may be provided in a suitable form according to the purpose of the offshore structure to which the buoyant body is applied.

The buoyancy pipe 10 may be manufactured in a transportable length (approximately 1 m to a length (m) according to a user's request), and the watertight bulkhead 11 may be a space required by a user (approximately 0.5 to a user's request) The gap (m)) may be provided to be fusionally provided inside the buoyancy pipe 10.

The seawater circumferential groove 20 is formed at both ends in the longitudinal direction of the buoyancy tube 10 and has a certain depth from the end to the outermost watertight bulkhead 11 for the introduction of seawater in the state installed on the sea. It is formed as a groove, and is provided so that a lower portion is submerged in seawater.

The seawater breaking groove 20 is prevented from being shaken by the buoyant pipe 10 by the incoming seawater as the seawater is in the lower part, thereby minimizing the flow of the buoyant body to maintain a more stable floating state. It will help you.

In addition, as the seawater breaking groove 20 is formed to a certain depth, when the wave is drawn into the seawater breaking groove, the incoming seawater hits the outermost watertight bulkhead 11 and then breaks out again.

The seawater passing hole 30 is formed to communicate with the seawater breaking groove 20 by penetrating the surface of the buoyant pipe on both circumferential surfaces of the buoyant pipe 10 in the longitudinal direction.

By forming the seawater passage hole 30, the lower part of the buoyancy tube 10, that is, the part submerged in seawater, communicates through the seawater passage hole through the seawater circulating groove, thereby minimizing the shaking of the buoyancy tube 10. It has the effect of minimizing or preventing the ripples of seawater when rolling or shaking of offshore structures.

In addition, when the waves hit both ends of the buoyancy pipe 10 in which the seawater breaking groove and the seawater passing hole are formed, the waves introduced into the seawater breaking groove hit the circumferential surface of the buoyancy tube in which a plurality of seawater passing holes 30 are formed. Even though it is split, it breaks finely as it passes through the seawater passage hole and escapes in the circumferential direction of the buoyant pipe, and partly breaks again in the direction facing the seawater breaking groove (the direction of entering the wave), colliding with the second wave By reducing or canceling the force (intensity) of the waves, it is possible to minimize the shaking of the offshore structure while reducing the damage of the buoyancy pipe that may be caused by the impact of the waves.

The fixing ring 40 is fixed by connecting the buoyancy tube and the buoyancy tube arranged parallel to each other in the width direction, or by connecting the buoyancy tube and the bottom reinforcement plate 51 installed above the buoyancy tube to each other to fix it. It is provided to give.

The fixed ring 40 may be formed in plural on each side of the buoyancy tube 10, or may be installed in plural on only one outer surface, and in the form of a ring formed with holes in the up and down direction to pass or bind the connecting means. It is preferably provided.

When the fixed ring 40 is formed on both sides of the buoyancy tube, the fixed ring may be formed to be located on the same horizontal line on each side of the buoyancy tube, as shown in Figures 4 and 5 on both sides of the buoyancy tube It is formed to be staggered at different heights, and is arranged parallel to each other, so that the fixing rings installed in the buoyancy pipes can be engaged with each other when fitted with the buoyancy pipes provided adjacently.

The connecting means may use a rope or a bolt and a nut.

At this time, the buoyancy pipe 10 needs to be interconnected in the longitudinal direction in addition to the interconnection in the width direction when manufacturing a relatively large offshore structure.

To this end, connecting rings 45 are formed on both outer surfaces in the longitudinal direction of the buoyancy tube 10. The connecting ring 45 is a ring shape in which holes are formed in the left and right directions on the inside, and the adjacent buoyancy pipes can be connected to each other by connecting means such as a rope or a stainless bolt and a nut.

The linking rings 45 are formed to be two or more rather than one, so that they are not easily separated in the state of being connected by the connecting means, while maintaining a reduced connection state.

And in the present invention, the buoyancy pipe 10 is not limited in its shape, but the cross section is so that the lower portion has an arc shape to effectively install the bottom reinforcement plate 51 installed on the upper side while being less affected by seawater.

'It is preferably formed in a shape.

That is, in the prior art, while using a buoyancy tube made of a cylindrical body, each buoyancy tube is connected to a separate connection bracket formed on the top of the plate, and a bottom reinforcement plate such as a scaffold is formed on the top of the connection bracket to form a buoyancy body. In the present invention, the buoyancy tube itself is to be able to form a buoyancy body in a flat top to directly install the anti-slip plate, such as a floor reinforcement plate or a footrest.

The reason why this is possible is that in the present invention, the buoyancy pipe does not need to use a separate connection bracket because it forms a watertight space 12 by drawing a watertight bulkhead 11 therein during the extrusion molding process of the pipe. And also the cross section when forming the pipe.

'It is possible because it can be extruded into a shape.

The bottom reinforcement plate 51 may be formed of any one of reinforced concrete, steel plate, wood, and resin material, and the bottom reinforcement plate is manufactured separately and then supported on the upper surface of the buoyancy tube 10 Can be installed by combining and assembling.

Of course, on the upper side of the bottom reinforcement plate 51, a finishing plate may be additionally installed according to the type of offshore structure.

On the other hand, in the present invention, a non-slip plate 50 made of a resin material may be installed on the upper surface of the buoyancy pipe 10. In this case, the anti-skid plate is directly extruded and attached to the upper surface of the buoyancy pipe to attach it to the buoyancy pipe. It can be integrally formed.

The non-slip plate 50 to be extruded may be integrally formed along the longitudinal direction of the buoyancy tube 10 by extruding it to an area equal to or greater than the upper area of the buoyancy tube 10.

The anti-slip plate 50 can be installed when used alone without the combination of a separate floating structure such as a cage farm, and the bottom reinforcement plate 51 is a floating bridge, a mooring facility, and a marine cargo loading facility or barge. When used in structures such as, it is installed for the purpose of reinforcing the bottom surface.

In the case of the bottom reinforcement plate 51, it will be preferable to be provided in a direction orthogonal to the buoyancy tube for reinforcement.

In the present invention, the buoyancy pipe 10 is produced by buoyant pipes by cutting the fusion-molded tube body by a predetermined length by inserting a watertight bulkhead 11 therein during the extrusion molding process of the pipe. In this case, it would be desirable to cut the middle portion of the watertight space 12 so that the seawater swelling grooves 20 are formed on both sides.

As described above, there is an advantage in that it is possible to easily form a seawater breaking groove through a process of cutting a pipe having a watertight space formed therein, which is possible because it is formed by extruding a pipe constituting a buoyancy pipe in the present invention.

Here, the space of the seawater breaking groove 20 formed on both sides of the buoyancy pipe may be formed smaller through an additional process such as cutting both ends of the buoyancy pipe after cutting the pipe.

According to the present invention configured as described above, a plurality of watertight spaces are formed inside the buoyancy pipe, so that even if a part is submerged due to damage, sinking can be prevented as buoyancy is maintained due to the remaining watertight space, and seawater passes through the seawater. It is possible to maintain a stable floating state while minimizing the buoyancy of buoyancy pipes by entering the seawater breaking groove through and passing through the opening or the seawater entering the seawater breaking groove through the seawater passage hole. When it collides, it breaks into fine pieces and passes through the seawater passage hole, thereby preventing damage to the buoyancy pipe caused by the waves while preventing the phenomenon of waves rising from the buoyancy pipe from rising.

Claims

A plurality of watertight bulkheads 11 are provided at regular intervals along the longitudinal direction, and the outer circumferential surface is fused to the inner surface to be integrally formed, and the watertight bulkheads 11 independently form a plurality of watertight spaces 12 A buoyancy tube 10 providing buoyancy;

It is formed with a groove of a predetermined depth from the end to the outermost watertight bulkhead 11 at both ends in the longitudinal direction of the buoyancy pipe 10, through the both ends of the buoyancy pipe 10 in a state where the lower part is submerged in seawater A seawater breaking groove (20) that induces a wave that is introduced into the inside to be broken after hitting the outermost watertight bulkhead (11);

The buoyancy pipe 10 is formed to pass through the buoyancy pipe to the circumferential surfaces of both end portions in the longitudinal direction of the buoyancy pipe 10 to communicate with the seawater breaking groove 20, and a part of seawater and waves introduced into the seawater breaking groove passes through the buoyancy pipe 10 ) A plurality of seawater passage holes 30 guiding to exit in the circumferential direction;

A plurality of buoyancy pipes 10 are installed on both outer surfaces or one outer surface of the buoyancy pipe 10, and the buoyancy pipes and buoyancy pipes arranged in parallel in the width direction by passing or binding the connecting means 60 are fixed to each other by connecting or fixing them. When the bottom reinforcement plate 51 is installed on the upper side of the buoyancy pipe 10 and the bottom reinforcing plate 51 to connect to each other to secure the fixing ring (40);

Buoyancy body for offshore structures, characterized in that consisting of.
According to claim 1,

For the offshore structure of the buoyancy pipe 10, a connecting ring 45 is formed to connect the buoyancy pipe and the buoyancy pipe to each other in the longitudinal direction using connection means 60 on the outer surfaces of both ends in the longitudinal direction. Buoyancy body.
According to claim 1,

The buoyancy tube 10 has a cross section so that the lower portion has an arc shape.
'A buoyant body for offshore structures, characterized in that formed in a shape.
According to claim 1,

The buoyancy pipe 10 is drawn between the watertight bulkheads while the entire outer circumferential surface of the watertight bulkhead is fused to the inner surface of the buoyancy pipe by introducing the watertight bulkheads 11 at regular intervals during the extrusion molding process of the pipe forming the outer shape. A buoyancy body for a marine structure, characterized in that it is manufactured by cutting a pipe formed to form a plurality of watertight spaces 12 to a predetermined length, and cutting so that the seawater breaking grooves 20 are formed on both sides.
According to claim 1,

An anti-slip plate 50 made of a resin material is installed on the upper surface of the buoyancy pipe 10, and the anti-slip plate 50 is integral with the buoyancy pipe through extrusion molding on the upper surface of the buoyancy pipe 10. A buoyant offshore structure characterized by forming.
According to claim 1,

The watertight bulkhead 11 is a floating structure buoyancy body characterized in that the cross-sectional shape is formed in a'T' type or'T' type for the upper reinforcement of the buoyancy tube (10).