KR102630863B1 - An unit buoyancy body and a floating structure assembly method using the buoyancy body - Google Patents

Abstract

A unit buoyancy body according to an embodiment of the present invention includes a foam buoyancy body made by foaming and molding a synthetic resin material into a predetermined shape; One or more through holes penetrating the interior of the foamed buoyant body in a predetermined direction; and a coating layer formed to a predetermined thickness by spraying a preset composition on the surface of the foamed buoyant body.

Description

Unit buoyancy body and floating structure assembly method using unit buoyancy body {AN UNIT BUOYANCY BODY AND A FLOATING STRUCTURE ASSEMBLY METHOD USING THE BUOYANCY BODY}

The present invention relates to a unit buoyancy body and a method of assembling a floating structure using the unit buoyancy body. Specifically, each unit buoyancy body is manufactured by the same method as the present invention described later, and the present invention similarly described later. It is a floating structure made by successively assembling several of the above unit buoyancy bodies, each manufactured using the same method, and is a small barge for various purposes such as storing various fishing gear in a sea fish farm or collecting and temporarily storing farmed marine products. This relates to a unit buoyancy body that can be used for various purposes such as a small boat, small pontoon, raft, etc., and a method of assembling a floating structure using the unit buoyancy body.

In general, a buoyant body floats by buoyancy in an aquaculture facility in the coastal sea and is connected to a net or growth plate, or performs the function of a buoy, and comes in various shapes and forms such as spherical, cylindrical, or square.

These buoyant bodies are mainly manufactured by foaming rubber or synthetic resin materials. Representative examples include PEP (Expanded Polyethylene) made of expanded polyethylene, EPP (Expanded Polypropylene) made of expanded polypropylene, An example is EPS (Expanded Polystyrene), which is expanded polystyrene.

The above materials have the characteristic of being very light in weight compared to a certain volume because small air pores are formed inside them due to porous bubbles during foam molding, enabling great buoyancy.

However, since conventional foam buoyants are mostly organic compounds based on various plastic materials such as rubber or polymer compounds, damage due to corrosion and deterioration caused by strong ultraviolet rays of sunlight occurs relatively quickly on the water surface, and furthermore, in the ocean, Corrosion caused by salt in seawater is added, so the service life as a buoyant body is not long, and in particular, problems of environmental pollution arise, such as microplastics, which are environmental pollutants due to deterioration and corrosion, leaching out and dispersing into the water.

In addition, the above-mentioned foam buoyants have a weak surface strength, so they are easily deformed or damaged by external shock like a sponge, and are also used to construct floating structures for various purposes such as small pontoons, rafts, and small barges floating on the surface of the sea. In manufacturing, there were many difficulties, especially in the task of connecting and combining multiple foam buoyancy bodies as described above in succession.

Meanwhile, the following prior art documents only disclose information about eco-friendly buoys for foam molding and their manufacturing methods, but do not disclose the technical gist of the present invention.

Republic of Korea Patent Publication No. 10-1880951

The unit buoyancy body and the method of assembling a floating structure using the same according to an embodiment of the present invention aim to solve the following problems in order to solve the above-mentioned problems.

By increasing the surface strength of the unit buoyancy body, deformation and damage of the unit buoyancy body can be prevented, and unit buoyancy bodies and floating structures using the same can be guaranteed for the speed and ease of modular assembly through continuous connection of multiple unit buoyancy bodies. Assembly method is provided.

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

A unit buoyancy body according to an embodiment of the present invention includes a foam buoyancy body made by foaming and molding a synthetic resin material into a predetermined shape; One or more through holes penetrating the interior of the foamed buoyant body in a predetermined direction; and a coating layer formed to a predetermined thickness by spraying a preset composition on the surface of the foamed buoyant body.

The through hole includes at least one first through hole formed through the foamed buoyant body in a horizontal direction and at least one second through hole formed through the foamed buoyant body in a longitudinal direction, and the first through hole is formed through the foamed buoyant body in a longitudinal direction. It is preferable that the ball and the second through hole are spaced apart from each other in a perpendicular direction at a preset interval.

It is preferable to further include a through-hole reinforcement pipe, the outer peripheral surface of which is formed in a shape corresponding to the inner peripheral surface of the through hole so that it can be inserted into the through hole, and the through-hole reinforcement pipe is formed with a hollow interior.

An end reinforcement material whose outer size is larger than the outer size of the through-hole reinforcement pipe by a predetermined size and wherein a hole of a predetermined size is formed in the center;

It is desirable.

The through-hole reinforcement pipe is preferably made of a fiber-reinforced plastic material.

The coating layer is preferably made of at least one of a mixture containing inorganic cement or a predetermined organic compound.

It further includes a reinforcing net formed in the form of a net and surrounding the surface of the foamed buoyant body, and the coating layer is preferably formed while the reinforcing net is wrapped around the foamed buoyant body.

In the method of assembling a floating structure using unit buoyancy bodies according to an embodiment of the present invention, two or more unit buoyancy bodies are connected and brought into contact with each other in one or both directions horizontally, vertically, or up and down vertically. It is provided so as to be continuous, but in the portion where the unit buoyancy bodies come into contact with each other, the ends of each through hole inside each unit buoyancy body or the ends of each through hole reinforcement pipe are arranged to be continuous while being in contact with each other, and the preset thickness and A long connecting wire is inserted continuously without interruption into each through hole or each through hole reinforcement pipe hollow, and two or more unit buoyancy bodies are continuously connected without interruption by the connecting wire to assemble a floating structure.

The bonding wire is preferably made of a fiber-reinforced plastic material.

The end of the coupling wire protrudes to the outside of the unit buoyancy body by a predetermined length, and the coupling wire protruding outward is provided with a nut or wedge-shaped tightening device so that the coupling wire can be tightly tightened with the tightening device. It is desirable to have it configured.

The method of assembling a unit buoyancy body and a floating structure using the unit buoyancy body according to an embodiment of the present invention increases the strength of the unit buoyancy body by forming a coating layer on the surface of the foam buoyancy body, thereby increasing the strength of the unit buoyancy body due to external environmental factors. The effect of preventing deformation and damage can be expected.

In addition, by improving the connection structure of multiple unit buoyancy bodies, it is possible to expect the effect of firmly and stably assembling floating structures of various sizes and shapes.

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

1 is an external view of a unit buoyancy body according to an embodiment of the present invention.
Figure 2 is a cross-sectional structural diagram of a unit buoyancy body according to an embodiment of the present invention.
Figure 3 is a diagram showing a through-hole reinforcement pipe inserted into a unit buoyancy body according to an embodiment of the present invention.
Figure 4 is a structural diagram showing a cross-section of various embodiments of a through-hole reinforcement pipe among the configuration of a unit buoyancy body according to an embodiment of the present invention.
Figure 5 is a plan view of the structure of a unit buoyancy body according to an embodiment of the present invention.
Figure 6 is a connection assembly diagram of a unit buoyancy body according to an embodiment of the present invention.
Figure 7 is a plan view of the assembled state of the unit buoyancy body according to an embodiment of the present invention.
Figure 8 is a cross-sectional view of a separated state of a coupling wire and a fastening device used in the process of assembling a floating structure using a unit buoyancy body according to an embodiment of the present invention.
Figure 9 is a cross-sectional view showing the tightening state of the coupling wire and the tightening device of Figure 8.
Figure 10 is a cross-sectional view of the installation state of the bonding wire used in the process of assembling a floating structure using a unit buoyancy body according to an embodiment of the present invention.
Figure 11 is an enlarged cross-sectional view of a unit buoyancy body according to another embodiment of the present invention.

Preferred embodiments according to the present invention will be described in detail with reference to the attached drawings, but identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

Additionally, when describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted. In addition, it should be noted that the attached drawings are only intended to facilitate easy understanding of the spirit of the present invention, and should not be construed as limiting the spirit of the present invention by the attached drawings.

Hereinafter, a unit buoyancy body according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

The unit buoyancy body 100 according to an embodiment of the present invention includes a foam buoyancy body 10 obtained by foaming and molding a synthetic resin material into a predetermined shape, as shown in FIGS. 1 to 3, and the foam buoyancy body 10 It is configured to include one or more through holes 11 penetrating the interior in a predetermined direction, and a coating layer 30 formed to a predetermined thickness by spraying a preset composition on the surface of the foamed buoyant body 10.

In particular, the through hole 11 includes at least one first through hole formed through the foam buoyancy body 10 in the horizontal direction and at least one second through hole formed through the foam buoyancy body 10 in the longitudinal direction. This can be done, and the above-described first through hole and second through hole may be formed to be spaced apart from each other in the vertical direction at a preset interval.

That is, when looking at the planar structural diagram of FIG. 5, the first through hole and the second through hole appear to intersect each other inside the foam buoyancy body 10, but in reality, they face each other and intersect due to the height difference between the two configurations. Each is configured to penetrate the interior of the foam buoyancy body 10 so as not to do so.

In addition, a through-hole reinforcement pipe 20 may be disposed in the through-hole 11. The through-hole reinforcement pipe 20 has a predetermined thickness and is made of a predetermined material, such as a fiber-reinforced plastic material. It is preferably made of a material that can firmly support the ball 11.

In addition, in order to be able to smoothly insert the through-hole reinforcement pipe 20 into the through-hole 11 and at the same time ensure a firm connection with the through-hole 11, the outer peripheral surface of the through-hole reinforcement pipe 20 is formed by the through-hole 11. ) is preferably formed in a shape corresponding to the inner peripheral surface of the through-hole reinforcement pipe 20, and a hollow is formed inside the through-hole reinforcement pipe 20 to accommodate the bonding wire, which will be described later.

In addition, as shown in FIGS. 3 and 4, in order to prevent the through-hole reinforcement pipe 20 from falling off from the through-hole 11, an end reinforcement member 21 is provided at the end of the through-hole reinforcement pipe 20. Can be combined, one side of the end reinforcement material 21 is inserted into the end of the through-hole reinforcement pipe 20, and the other side is formed to have a diameter larger than the diameter of the through-hole reinforcement pipe 20.

In particular, it is desirable to form a hole in the center of the end reinforcement 21 to connect the plurality of unit buoyancy bodies 100 using a connecting wire 40, which will be described later.

The coating layer 30 is intended to increase the strength of the surface of the foamed buoyant body 10, and is formed by spraying a preset composition on the surface of the foamed buoyant body 10 to coat it to a predetermined thickness.

This coating layer 30 may be made of at least one of a mixture containing inorganic cement and a preset organic compound.

In particular, a shotcrete coating layer can be considered as the coating layer 30, and this shotcrete coating layer is formed by spraying a shotcrete composition mixed with 10 to 30% by weight of fiber reinforcement at high pressure. At this time, the shotcrete composition sprayed is water and Any one of cement milk or cement paste that forms the basic mixing composition of cement, cement mortar in which sand is additionally mixed in the basic composition, and cement concrete in which sand and gravel are mixed in the basic composition can be used, and this shotcrete composition is Since this is a technology used in normal construction sites, descriptions of the specific composition and mixing ratio will be omitted.

Meanwhile, the fiber reinforcement mixed in the shotcrete composition in the present invention is thin with a diameter of 0.5 to 1 mm and a length of 3 to 50 mm, and includes steel fibers, nylon fibers, polypropylene fibers, PET fibers, and PVA ( It is preferable that any one of polyvinyl alcohol (polyvinyl alcohol) fiber, cellulose fiber, glass fiber, or carbon fiber is used.

When such high-pressure spraying of shotcrete is performed, the shotcrete composition penetrates into the foam pores on the surface of the foamed buoyant body 10 due to the spraying pressure, thereby achieving efficient surface adhesion. Shotcrete spraying is performed using the wet method among the dry and wet methods. It is desirable for this to happen.

In addition, in order to improve the functionality of shotcrete, it is desirable to add carbonitride and metallocene polyethylene components in an amount of 5 to 10% by weight of the total weight, respectively. Mixing these functional components shortens the curing time of the coating layer and improves durability. This can be strengthened, and in particular, metallocene polyethylene can show the advantage of improving the bonding force and density between paste particles through the catalytic function of cement paste.

Furthermore, in some cases, a shotcrete composition mixed with the above fiber reinforcement may be applied to the outer surface of the foamed buoyant body 10 as a plaster.

Hereinafter, the unit buoyancy body according to an embodiment of the present invention described above will be described, and a method of assembling a floating structure by combining the unit buoyancy bodies according to the present invention will be described with reference to FIGS. 6 to 10.

In the unit buoyancy body 100 according to an embodiment of the present invention, a coating layer 30 is formed on the outer surface of the foam buoyancy body 10, and a through hole reinforcement pipe 20 is provided in the through hole 11 formed inside. It is manufactured in an individual form that consists of inserts.

A floating structure can be assembled using these unit buoyancy bodies 100. As shown in FIGS. 6 and 7, a plurality of unit buoyancy bodies 100 are modularized by combining them in the vertical and horizontal directions or in a stacked form using bonding wires. Connection work is performed, which makes it possible to assemble floating structures of various shapes and structures.

That is, two or more unit buoyancy bodies 100 are provided in a continuous manner while being connected to each other in one or both directions horizontally, vertically, or up and down vertically, but in the portion where the unit buoyancy bodies 100 come into contact with each other, each unit Each through hole 11 inside the buoyancy body 100 or each through hole reinforcement pipe 20 accommodated in each through hole 11 is arranged so that the end portions on one side are in contact with each other and are continuous, and the bonding wire (40) is inserted continuously without interruption into each through hole (11) or the hollow interior of each through hole reinforcement pipe (20) so that two or more unit buoyancy bodies (100) can be combined.

At this time, the end of the coupling wire 40 protrudes to the outside of the unit buoyancy body 100 by a predetermined length as shown in FIGS. 8 and 9, and the outwardly protruding portion is provided with a tightening device such as a nut or wedge shape. By providing (41), a tightening force is applied to the bonding wire (40), thereby forming a state in which each unit buoyancy body (100) is in close contact with each other.

In addition, the bonding wire 40 may be made of flexible fiber-reinforced plastic (GFRP, CFRP, AFRP) and form a long and thin shape, as shown in FIG. 10 .

In particular, in the case of the bonding wire 40 made of fiber-reinforced plastic, corrosion is prevented even when in contact with water, especially sea water, the tensile strength is very high, and the modular assembly state between the plurality of unit buoyancy bodies 100 is maintained due to excellent flexibility. can be maintained stably.

In addition, since the through-hole reinforcement pipe 20 is inserted into the unit buoyancy body 100, the tightening force due to the tension of the coupling wire 40 is directly applied to the foam buoyancy body 10 inside the unit buoyancy body 100. It is not transmitted, and as a result, in the long term, the foamed buoyant body 10 is not contracted or deformed due to the bonding wire 40, thereby achieving a very stable support state.

Through modular connection assembly work of the unit buoyancy body 100, it is possible to easily and robustly manufacture floating structures that can be used as various work ships (small pontoons, small bi-suns, etc.) floating on the sea or barges for refrigerated warehouses. do.

Therefore, the unit buoyancy body 100 according to an embodiment of the present invention has a structure in which a preset composition is coated on the surface of the foam buoyancy body 10, so that the surface strength is strengthened and a plurality of unit buoyancy bodies 100 are formed. It can be expected that the assembly work for connection can be done more quickly and easily.

In addition, there is an advantage that the connected and assembled state of the unit buoyancy body 100 can be stably maintained by the through-hole reinforcement pipe 20 and the bonding wire 40 that are penetrated and accommodated inside the foam buoyancy body 10.

Furthermore, when the unit buoyancy bodies 100 according to an embodiment of the present invention are each independently assembled in a predetermined facility and used as independent buoyancy bodies, the through hole 11 and the penetration inside thereof are formed. The ball reinforcement pipe 20 can also serve as a place where predetermined members (such as long bolts) can be inserted for assembling the unit buoyancy body 100 of the present invention into a predetermined facility.

Meanwhile, Figure 11 shows a unit buoyancy body 100 according to another embodiment of the present invention, and the surface of the foam buoyancy body 10 is covered with a net-shaped reinforcement net 60 and a coating layer ( It can be confirmed that the coating of 30) has been formed.

At this time, the reinforcing net 60 may be made of metal or natural or synthetic resin (nylon, plastic, etc.).

When such a configuration is achieved, the bonding force and adhesion of the coating layer 30 can be improved due to the configuration of the reinforcing network 60, and flexibility is increased.

In addition, the durability of the unit buoyancy body 100 can be strengthened, and damage due to external shock can be prevented.

Above, the present invention has been described in detail using preferred embodiments, but the scope of the present invention is not limited to the specific embodiments and should be interpreted in accordance with the appended claims. Additionally, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

10: Foam buoyancy body
11: Through hole
20: Through-hole reinforcement pipe
21: End reinforcement
30: Coating layer
40: Combined wire rod
41: Tightening device
60: Reinforcement net
100: Unit buoyancy body

Claims (12)

delete delete delete delete delete delete delete In the floating structure assembly method of assembling a floating structure by combining a plurality of unit buoyancy bodies,
The unit buoyancy body includes a foam buoyancy body formed by foaming and molding a synthetic resin material into a predetermined shape, at least one first through hole formed to penetrate the interior of the foam buoyancy body in the horizontal direction, and a longitudinal direction inside the foam buoyancy body. It includes at least one second through hole formed through the first through hole and spaced apart from the first through hole in a perpendicular direction at a preset interval,
A plurality of the unit buoyancy bodies are provided so as to be continuous and connected to each other in one or both directions horizontally and vertically,
At least one end of the first through hole and the second through hole of adjacent unit buoyancy bodies is arranged to be in contact with each other and to be continuous,
A bonding wire having a preset thickness and length is inserted continuously without interruption into the interior of the first through hole and the second through hole to continuously couple a plurality of unit buoyancy bodies by the bonding wire that is continuous without a break. A method of assembling a floating structure using a characterized unit buoyancy body.
In claim 8,
A method of assembling a floating structure using a unit buoyancy body, characterized in that the bonding wire is made of a fiber-reinforced plastic material.
In claim 8,
The end of the bonding wire protrudes to the outside of the unit buoyancy body disposed on the outermost side of the floating structure by a predetermined length, and the bonding wire protruding outward is provided with a nut or wedge-shaped tightening device to fasten the bonding wire to the above. A method of assembling a floating structure using a unit buoyancy body, characterized in that it is configured to be tightly tightened with a tightening device.
In claim 8,
The unit buoyancy body has an outer circumferential surface formed in a shape corresponding to the inner circumferential surface of the first through hole and the second through hole, a hollow formed therein, and a through hole inserted into the first through hole and the second through hole. Further comprising a reinforcing pipe,
The method of assembling a floating structure, characterized in that the bonding wire is continuously inserted into the hollow interior of the through-hole reinforcement pipe so as to continuously couple a plurality of unit buoyancy bodies by the bonding wire that is continuous without interruption.
In claim 11,
A method of assembling a floating structure, characterized in that the through-hole reinforcement pipe is formed of a fiber-reinforced plastic material.