WO2022225217A1

WO2022225217A1 - Wave-dissipation block and marine structure to which same is applied

Info

Publication number: WO2022225217A1
Application number: PCT/KR2022/004441
Authority: WO
Inventors: 김병인; 신동인
Original assignee: 김병인; 신동인
Priority date: 2021-04-22
Filing date: 2022-03-29
Publication date: 2022-10-27
Also published as: KR20240024889A; KR20220145734A; KR102293352B1; KR102639804B1

Abstract

The present invention relates to a wave-dissipation block having improved rigidity, porosity, and interlocking performance of tetrapods. The wave-dissipation block is a tetrapod-type wave-dissipation block including four main leg portions (10) extending from a center of an imaginary tetrahedron toward each vertex of the tetrahedron, the wave-dissipation block comprising: four first beam portions (13) respectively protruding from surfaces of the main leg portions (10) in a centrifugal direction and extending, to the ends of three main leg portions (10), in a Y-shape from points where all of the three main leg portions (10) adjacent to each other in a center of the wave-dissipation block meet; six third beam portions (17) protruding from the surfaces of the main leg portions (10) in the centrifugal direction and extending, to the ends of two main leg portions (10), in an I-shape from points where the two main leg portions (10) adjacent to each other in the center of the wave-dissipation block meet; and sub-leg portions (30) connected to the ends of the main leg portions (10) and the ends of the first beam portions (13) and including three radial angle portions (40) radially extending, at intervals of 120 degrees, from an imaginary central axis of the main leg portions (10), the imaginary central axis being defined along an extension direction of the main leg portions (10).

Description

Sofa block and offshore structure to which it is applied

The present invention relates to a tetrapod-type sofa block capable of improving rigidity, porosity and interlocking performance, improving sofa performance, and providing a stable habitat for marine ecosystems.

In general, a sofa block is an offshore structure that dissipates wave energy so that high waves in the open sea do not reach the inland sea or land as they are. These sofa blocks are used in a static or difficult way for various offshore structures such as breakwaters, quay walls, and jamje.

The sofa block is evaluated for its technical value by the porosity generated by mounting the sofa block in a static or difficult way, and the K _d value determined by the shape and mounting method of the sofa block.

For example, if the sofa block is poorly designed or mounted poorly to increase the porosity, the foundation stone leaks or the sofa block moves and collides and is damaged, resulting in damage to the body.

In addition, the sofa block, the volume (tonne) is determined in response to the marine environment in which the sofa block is constructed and installed. For example, the greater the design wave height of the ocean, the greater the self-weight of the sofa block is designed.

Meanwhile, in the sofa block, the binding force (interlocking) between neighboring sofa blocks is also one of the most important factors. If the design wave height is too large, the construction cost increases significantly, resulting in an inefficient design. Conversely, if the design wave height is too tight, the sofa block is helpless at the wave height exceeding it. Therefore, the interlocking between neighboring sofa blocks is one of the most important design factors so that an appropriate design wave height can be set and the sofa blocks do not float away or are damaged even at an unexpected wave height that exceeds the design wave height. .

However, excessive interlocking is a factor that makes it difficult to install the sofa block, so an appropriate compromise is required.

The present invention has been devised to solve the above-described problems, and it is possible to secure high rigidity and porosity, and has a large wave energy dissipation ability, and a sofa block that is not difficult to install while interlocking well, a method for mounting the same, and a method thereof It aims to provide an applied offshore structure.

The technical gist of the present invention for solving the above problems is applied to a tetrapod-type sofa block including four main leg parts 10 extending from the center of a virtual tetrahedron toward each vertex of the tetrahedron.

The cross section of the main leg part 10 may be circular or regular polygonal. The regular polygon may be, for example, an equilateral triangle or a regular hexagon. Of course, the cross section does not necessarily have to be a regular polygon, and may be a general polygon (triangle, hexagon, etc.).

The main leg unit 10 may be in the form of a truncated cone whose cross section decreases from the center of the sofa block toward the end of the main leg unit 10, or may be in the form of a column having a constant cross section.

The sofa block 1 has a main goal to further include a sub-leg part 30 at the end of the main leg part 10 .

When the sub-leg part 30 protrudes long in the radial direction from the main leg part 10, a high porosity is ensured, the wave energy dissipation ability is large, and interlocking is well done, but installation is not difficult.

The sub-leg part 30 may be provided on all four main leg parts 10 . In some cases, the sub-leg part 30 may be provided only in the three main leg parts 10 , only in the two main leg parts 10 , or in only one main leg part 10 .

When the sofa block provided with the sub-leg part 30 is mounted only on a part of the main leg part 10, the main leg part 10 provided with the sub-leg part 30 is directed downward, and the sub-leg part 30 is provided. The main leg portion 10 that has not been oriented may be mounted in an upward direction.

The sub-leg part 30 may include a plurality of radial angle parts 40 extending radially from the imaginary central axis of the main leg part 10 defined along the extension direction of the main leg part 10 . can

The sub-leg part 30 may have a flat plate shape perpendicular to the central axis of the main leg part 10 .

The plurality of radial portions 40 may extend radially on a plane.

The three radial portions 40 may be provided at intervals of 120 degrees.

The cross-sectional shape of the radial angle part 40 is a rectangular shape in which a direction perpendicular to the imaginary central axis of the main leg part 10 is longer than a direction parallel to the imaginary central axis of the main leg part 10, Preferably, it may have a rectangular shape. However, the cross-sectional shape of the radial angle is not necessarily limited thereto, and as described above, if the width of the cross-section is greater than the height of the cross-section, it is of course possible to transform into various shapes such as a flat oval shape.

The strength of the three radial portions 40 may be secured by the connection portion 50 between them. The connecting portion 50 may be disposed between the two adjacent radial portions 40 to connect the two adjacent radial portions 40 . This can be understood as being like the webbing of a flipper.

The length of the connecting portion 50 radially extending from the center of the sub-leg portion 30 is equal to or greater than the length of the radial angle portion 40 extending radially from the center of the sub-leg portion 30 . can be small

The direction in which the radial angle part 40 extends from the end of the main leg part 10 may correspond to a direction in which the main leg part 10 and the remaining three main leg parts 10 adjacent to the main leg part 10 extend. have.

On the other hand, the direction in which the radial angle part 40 extends from the end of the main leg part 10 is opposite to the direction in which the other three main leg parts 10 adjacent to the main leg part 10 extend. can be

The sofa block 1 is the main leg part ( 10) protruding from the surface of the centrifugal direction, it may be provided with

beams

13 and 17 extending from the center of the sofa block to the end of the main leg portion (10).

The

beam units

13 and 17 may include a first beam unit 13 and/or a third beam unit 17 .

The first beam unit 13 may connect three adjacent main leg units 10 .

The first beam part 13 protrudes in the centrifugal direction from the surface of the main leg part 10, and the three main leg parts 10 from the point where all three neighboring main leg parts 10 meet at the center of the sofa block. It may be a Y-beam portion extending in a Y-shape to the end of the leg portion 10 .

In the sofa block of the tetrapod type, four first beam units 13 as above may be provided.

In order to maximize the effect of the beam, the first beam unit 13 may be disposed at the center of the cross-section of the main leg unit 10 , that is, at a position farthest from the central axis. Accordingly, by increasing the section modulus (Z) of the main leg portion 10, it is possible to significantly increase the strength of the main leg portion.

For example, when the cross section of the main leg part 10 is an equilateral triangle, the first beam part 13 may be disposed at a vertex of the equilateral triangle.

Also, for example, when the cross section of the main leg part 10 is a regular hexagon, the first beam part 13 may be disposed at three vertices of the regular hexagon spaced apart from each other.

The third beam unit 17 may connect two adjacent main leg units 10 .

The third beam unit 17 is protruded in the centrifugal direction from the surface of the main leg unit 10, and the two main legs from a point where two neighboring main leg units 10 meet at the center of the sofa block. It may be an I-beam part extending in an I-shape to the end of the part 10 .

In the tetrapod type sofa block, six third beam units 17 as above may be provided.

In order to maximize the effect of the beam, the third beam unit 17 may be disposed at a position farthest from the center of the cross-section of the main leg unit 10 .

For example, when the cross section of the main leg part 10 is an equilateral triangle, the third beam part 17 may be disposed at a central portion of three sides of the equilateral triangle.

For example, when the cross section of the main leg part 10 is a regular hexagon, the third beam part 17 may be disposed at the remaining three vertices of the regular hexagon where the first beam part 13 is not formed.

The sofa block 1 may further include a second beam unit 15 to reduce the thickness or size of the main leg unit 10 .

The second beam part 15 may be a central beam part formed in a portion where the two adjacent main leg parts 10 contact each other in order to reinforce the proximal ends of the two adjacent main leg parts 10 .

The second beam part 15 is protruded from the surface of the main leg part 10 in the centrifugal direction, and is made of any one along the periphery of the part where two adjacent main leg parts 10 meet at the center of the sofa block. It may extend from the center of the first beam part 13 to the center of the adjacent first beam part 13 to connect them. A central portion of the second beam unit 15 in the longitudinal direction may intersect the third beam unit 17 . Accordingly, the first to third beams may be connected to each other.

In the sofa block of the tetrapod type, six second beam units 15 as above may be provided.

The cross-sectional shape of at least one of the first beam part 13, the second beam part 15, and the third beam part 17 may vary, and may be a general polygon, square, rectangle, trapezoid, semi-circle, or semi-ellipse. . However, the shape of the cross-section is not necessarily limited to the shapes listed here.

The sofa block 1 may include a surface beam part to secure the strength of the sub-leg part 30 .

The sofa block 1 may include a back beam part in order to secure the strength of the connection part between the sub-leg part 30 and the main leg part 10 .

The sofa block 1 may include a haunchi portion 60 to secure the strength of the connection portion between the sub-leg portion 30 and the main leg portion 10 .

The radial part 40 may be connected to an end of the main leg part 10 .

The connecting part 50 may be connected to an end of the main leg part 10 .

The radiation angle part 40 may be connected to an end of the first beam part 13 , and the connecting part 50 may be connected to an end of the third beam part 17 . In this shape, the direction in which the radial angle part 40 extends from the end of the main leg part 10 is opposite to the direction in which the other three main leg parts 10 adjacent to the main leg part 10 extend. can be applied in case of

Alternatively, the radiation angle part 40 may be connected to an end of the third beam part 17 , and the connecting part 50 may be connected to an end of the first beam part 13 . In this shape, the direction in which the radial angle part 40 extends from the end of the main leg part 10 corresponds to the direction in which the other three main leg parts 10 adjacent to the main leg part 10 extend. direction can be applied.

The sub-leg part 30 is a leg part surface beam part protruding from the surface of the radial angle part 40 and extending from the center of the sub leg part 30 to the ends of the three radial angle parts 40 in a Y-shape ( 43) can be provided.

The sub-leg part 30 is a connecting part surface beam part that protrudes from the surface of the inter-connection part 50 and extends from the center of the sub-leg part 30 to the ends of the three inter-connection parts 50 in a Y-shape ( 53) can be provided.

The sub-leg part 30 includes a back-beam part 45 protruding from the rear surface of the radiation angle part 40 and extending from the circumferential surface of the main leg part 10 to the end of the radiation angle part 40 . can do.

The sub-leg part 30 includes a connecting part back beam part 55 protruding from the back surface of the inter-connection part 50 and extending from the circumferential surface of the main leg part 10 to the end of the inter-connection part 50 . can do.

The radially inner end of the back-beam portion 45 is connected to the end of the first beam portion 13 , and the radially inner end of the connecting portion back-beam portion 55 is connected to the end of the third beam portion 17 . can In this shape, the direction in which the radial angle part 40 extends from the end of the main leg part 10 is opposite to the direction in which the other three main leg parts 10 adjacent to the main leg part 10 extend. can be applied in case of

On the other hand, the radially inner end of the back-beam portion 45 is connected to the end of the third beam portion 17 , and the radially inner end of the back-beam portion 55 of the connecting portion is the first beam portion 13 . can be connected to the end. In this shape, the direction in which the radial angle part 40 extends from the end of the main leg part 10 corresponds to the direction in which the other three main leg parts 10 adjacent to the main leg part 10 extend. direction can be applied.

The cross-sectional shape of the each part surface beam part 43, the connecting part surface beam part 53, the leg part back beam part 45, or the connecting part back beam part 55 may be a general polygon, a square, a rectangle, a trapezoid, a semicircle, or a semi-ellipse. . However, the shape of the cross-section is not necessarily limited to the shapes listed here.

Reinforcing bars may be reinforced in at least one of the first beam part 13 , the second beam part 15 , and the third beam part 17 as necessary.

The heonchi part 60 may reinforce the corner portion where the back surface of the sub-leg part 30 and the circumferential surface of the main leg part 10 are connected.

Reinforcing bars may be provided on the front and back beams of the sub-leg part 30 as necessary.

The present invention further includes an offshore structure on which a plurality of sofa blocks are mounted.

The marine structure may have a structure in which the sofa blocks are mounted in a single layer, or a structure in which the sofa blocks are stacked in two layers.

As for the marine structure in which the sofa block is mounted in a single layer, the first row is upright so that the three main leg parts of the sofa block are placed on the floor surface, and in the second row adjacent to this, one main leg part of the sofa block is placed on the floor surface. It can be inverted to be

The sofa blocks of the first row are mounted so that the sofa blocks are mounted along the first direction so that the first main leg part of the sofa block faces upward and the second to fourth main leg parts are placed on the floor surface, The second main leg portion of the sofa block may be mounted to face one side in the second direction perpendicular to the first direction, and the adjacent sofa block may be mounted such that the second main leg unit faces the other side in the second direction.

In this case, the width portion occupied by the one sofa block in the second direction and the width portion occupied by the neighboring sofa block in the second direction may be mounted to correspond to each other.

The second row sofa blocks are adjacent to the first row sofa blocks in the second direction, and the sofa blocks are mounted along the first direction, and the first main leg portion of the sofa block faces downward. is placed on the second to fourth main leg portions are mounted to face upward, and the second main leg portion of any one sofa block is placed to face one side in the second direction, and the adjacent sofa block has a second main leg portion It is mounted to face the other side in the second direction, and the width portion occupied by the one sofa block in the second direction and the width portion occupied by the neighboring sofa block in the second direction may be mounted to correspond to each other.

And on the second main leg portion of the sofa block in the first row, the second main leg portion of the sofa block in the second row is disposed, on the third main leg portion and the fourth main leg portion of the sofa block in the first row, The third main leg part and the fourth main leg part of the second row sofa block may be mounted so that they are respectively arranged.

The offshore structure in which the sofa block is mounted in two layers may include first floor sofa blocks mounted on a floor surface, and second floor sofa blocks mounted on the first floor.

The first floor sofa blocks may include sofa blocks in a first row, sofa blocks in a second row, and sofa blocks in a third row, which are mounted next to each other.

The sofa blocks of the first row are mounted so that the sofa blocks are mounted along the first direction so that the first main leg part of the sofa block faces upward and the second to fourth main leg parts are placed on the floor surface, The second main leg part of the sofa block is mounted to face one side in the second direction perpendicular to the first direction, and the adjacent sofa block is mounted so that the second main leg part faces the other side in the second direction, The width portion occupied by the block in the second direction and the width portion occupied by the neighboring sofa block in the second direction may be mounted to correspond to each other.

The second row sofa blocks are adjacent to the first row sofa blocks in the second direction, and the sofa blocks are mounted along the first direction, in an arrangement and posture corresponding to the first row sofa blocks. can be mounted

The third row sofa blocks are adjacent to the second row sofa blocks in the second direction, and the sofa blocks are mounted along the first direction, in an arrangement and posture corresponding to the second row sofa blocks. can be mounted

The second-floor sofa blocks may include upper-floor sofa blocks in the first row and upper-layer sofa blocks in the second row mounted next to each other.

The upper first row sofa blocks may be mounted on the first row sofa blocks and the second row sofa blocks of the first floor.

The upper floor second row sofa blocks may be mounted on the second row sofa blocks and the third row sofa blocks of the first floor.

The upper floor first row sofa blocks are mounted so that the sofa blocks are mounted along the first direction, the first main leg part of the sofa block facing downward and the second to fourth main leg parts facing upward, The first main leg portion is placed on a portion adjacent to each other in the first row and the second row of the first floor, two adjacent four sofa blocks in the first direction and two adjacent to each other in the second direction, any one sofa block of the second main leg part is mounted to face one side in the second direction, and the adjacent sofa block is mounted so that the second main leg part faces the other side in the second direction, and the one sofa block occupies in the second direction. The width portion and the width portion occupied by the neighboring sofa block in the second direction may be mounted to correspond to each other.

The upper floor second row sofa blocks are adjacent to the first row sofa blocks in the second direction, and the sofa blocks are mounted along the first direction, and the first main leg portion of the second row and the second row of the first floor In the third row, four sofa blocks that are two adjacent in the first direction and two adjacent in the second direction are placed on adjacent parts, and mounted in an arrangement and posture corresponding to the sofa blocks in the upper floor first row. can do.

The first direction may be a direction corresponding to the inclination direction of the slope.

The sofa block of the present invention can secure the strength of the main leg portion and further increase the sofa effect and porosity due to the Y-type first beam portion and the I-type third beam portion.

The sofa block of the present invention can further secure the strength of the main leg portion and further increase the sofa effect and porosity due to the second beam portion.

The sofa block of the present invention, due to the sub-leg, has a high porosity, interlocking between neighboring sofa blocks can be made more reliably, and the sofa effect can be further increased.

The sofa block of the present invention has a high porosity due to the front beam part and the back beam part, and further secures the strength of the sub-leg part, and can further enhance the sofa effect.

In addition, in the sofa block of the present invention, since the front beam part and the back beam part are connected to the first beam part and the second beam part, the strength of the connection part of the sub-leg part and the main leg part can be further secured.

The beam part, which is a frame in the structure, has excellent functions and effects of resisting external force by itself, distributing external force, and transmitting external force while reducing the overall weight of the structure. According to the present invention, by adding beam parts (first beam part, second beam part, and third beam part) to the main leg part, the external force acting on any one main leg part is supported by itself, distributed to the other main leg part, or transmitted to the sub-leg part. It exhibits excellent functions and effects. Accordingly, the rigidity of the sofa block is significantly improved. In addition to this, the concave-convex shape added by the beam part brings about a sofa effect and an improvement in porosity, and also provides a habitat for marine life.

The functions and effects of such a beam part are the same in the case of the front beam part and the back beam part added to the sub-leg part.

The 12 radiation angles of the sub leg provided in one sofa block in the form of tetrapods interfere with the 12 radiation angles provided in the neighboring sofa blocks, the first beam and the third beam, the front beam and the back beam, and excellent interlocking effect. to perform Therefore, even if high waves act on the sofa block, the body is not destroyed. In addition, the above structure and its shape have superiority in improving porosity and sofa effect, securing mounting stability, and providing habitat for marine organisms.

In the marine structure according to the mounting method of the sofa block, the sub-leg parts provided at the front ends of the main leg parts of the neighboring sofa blocks may be interlocked with each other.

In addition, the bent shape formed in the main leg part by the sub-leg part and the

beam parts

13 and 17 may be interlocked with each other.

Accordingly, the offshore structure made of the sofa blocks has the effect of being very strongly mutually bound.

In addition, the curved shape formed by the beam part of the sub-leg part and the beam part of the main leg part greatly enhances the water current separation and breaking effect.

In addition, it can be said that the displacement resistance is very strong and stable even when high waves act. That is, it can be said that the wave implosion stability coefficient (K _D ) is very high.

In addition, the geometrical beauty of the mounted blocks is excellent.

1 to 5, 6 to 10, 11 to 15, 16 to 20, 21 to 25, 26 to 30, 31 to 35, 36 to 40, 41 45, 46 to 50, 51 to 55, and 56 to 60 are a front perspective view, a rear perspective view, a top view, a bottom view, and a front view of the sofa block of the first to twelfth embodiments, respectively.

61 to 66, and 67 to 70 are views showing the mounting structure of an offshore structure in which the sofa blocks of the twelfth embodiment are stacked one or two layers, respectively.

DESCRIPTION OF SYMBOLS 1: Sofa block 10: Main leg part 13: First beam part (Y-beam part) 15: Second beam part (connecting beam part) 17: Third beam part (I-beam part) 30: Sub leg part 40: Radiating angle part 43: Leg part Front beam part 433: Beam part tip chamfer surface 45: Back beam part 50: Interconnection part 53: Connection part surface beam part 533: Connection part beam part chamfer surface 55: Connection part back beam part 60: Heonchi part

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the embodiment, the axial direction means a direction in which the leg portion extends. This may be expressed as an extension direction or a length direction. The central axis of the leg part is an axis extending along the extension direction of the leg part and may mean an axis passing through the center of the leg part.

The circumferential direction means a direction surrounding the central axis of the leg portion. This can also be expressed as the circumferential direction.

The radial direction means a direction approaching or away from the central axis of the leg portion. Accordingly, the centripetal direction may be a direction approaching the central axis of the leg portion, and the distal direction may be a direction away from the central axis of the leg portion.

[First embodiment]

Hereinafter, a first embodiment of a sofa block according to the present invention will be described with reference to FIGS. 1 to 5 .

The sofa block of the first embodiment may be substantially in the form of a tetrapod.

That is, the sofa block 1 may have a shape including four main leg parts 10 extending from the center of the virtual tetrahedron toward each vertex of the tetrahedron.

According to the first embodiment, the shape of the cross section of the main leg part 10 (a plane cut in a plane perpendicular to the central axis of the leg part) is substantially circular. And the main leg part 10 is in the form of a truncated cone whose cross section decreases from the center of the sofa block toward the end of the main leg part 10 . That is, the main leg portion 10 has a substantially truncated cone shape.

For convenience of explanation, the main leg part facing upward when the sofa block is placed on the ground among the four main leg parts is referred to as the first main leg part, and the remaining main leg parts in contact with the ground are called the second main leg part and the third main leg part, respectively. referred to as a leg part and a fourth main leg part. However, these are referred to as such for convenience of description, and there is substantially no difference in the shapes of the first main leg part to the fourth main leg part.

A sub-leg part 30 is connected to an end of the main leg part 10 .

The sub-leg part 30 is perpendicular to the central axis of the main leg part 10 and has a flat plate shape having a predetermined thickness.

The sub-leg part 30 includes three radial angle parts 40 extending in a centrifugal direction from the central axis of the main leg part 10 . The radial angle portions 40 are arranged at intervals of 120 degrees around the central axis of the main leg portion 10 .

The three radial portions 40 are radially extended on a plane.

The cross-sectional shape of the radial angle part 40 cut in a plane perpendicular to the extension direction of the radial angle part 40 has a direction perpendicular to the imaginary central axis of the main leg part 10 in the main leg part 10 . It may be in the form of a rectangle longer than the direction parallel to the imaginary central axis of . For ease of explanation, the cross-section of the radial portion 40 may have a flat rectangular shape. Of course, as mentioned above, the cross-sectional shape is not necessarily limited thereto.

The sub-leg part 30 further includes a connection part 50 therebetween.

The connecting portion 50 may be disposed between the three radial portions 40 , respectively. That is, three connecting portions 50 may also be provided at intervals of 120 degrees. The inter-connection portion 50 is disposed between the two adjacent radial portions 40 to connect the two adjacent radial portions 40 , and the radial portion 40 has its strength by the inter-connection portion 50 . can be reinforced.

A length in which the connecting part 50 extends radially from the center of the sub-leg part 30 is smaller than a length in which the radial angle part 40 extends radially from the center of the sub-leg part 30 . Accordingly, the radial portion 40 protrudes more in the centrifugal direction than the interconnection portion 50 .

Referring to FIG. 3 , the direction in which the radial angle part 40 extends from the end of the main leg part 10 is the same as the direction in which the main leg part 10 and the remaining three main leg parts 10 adjacent to each other extend. It is the opposite direction. Then, as shown in FIG. 5 , one radial angle part 40 of the sub leg part 30 provided at the end of the second main leg part to the fourth main leg part comes into contact with the ground. This places the sofa block 1 slightly higher from the ground than the form in which the two radial portions 40 are in contact with the ground. Accordingly, the orientation of the radiation angle portion 40 increases the porosity of the sofa block 1 .

The sofa block 1 has a form protruding in the centrifugal direction from the circumferential surface of the main leg unit 10 and includes a first beam unit 13 extending in the longitudinal direction of the main leg unit 10 . .

The first beam unit 13 may have a Y-shape. Specifically, the first beam part 13 is in the form of connecting three adjacent main leg parts 10 .

The first beam part 13 protrudes in the centrifugal direction from the surface of the main leg part 10, and the three main leg parts 10 from the point where all three neighboring main leg parts 10 meet at the center of the sofa block. It is a form extending in a Y-shape to the end of the leg portion 10 . Accordingly, the first beam part 13 is formed in a portion adjacent to the first main leg part, the second main leg part, and the third main leg part, and the first main leg part, the second main leg part, and the fourth main part. The leg parts are formed in adjacent parts, and the first main leg part, the third main leg part, and the fourth main leg part are formed in adjacent parts, and the second main leg part, the third main leg part, and the fourth main leg part are formed. An addition may be formed in a neighboring site. As such, four first beam units 13 may be provided.

The first beam part 13 can further secure the strength of the main leg part 10 while reducing the area of the cross-section of the main leg part 10 , and in particular, in a radial direction from the central axis of the main leg part 10 . By being disposed at the furthest position to the, the bending rigidity of the main leg portion 10 is greatly reinforced. Since the first beam part 13 itself is made of concrete, the first beam part 13 can exert a very large resistance to compressive force or shear failure occurring along its longitudinal direction.

For example, when the first main leg unit receives an external force that bends toward the second main leg unit and the third main leg unit, the first beam unit is formed in adjacent parts of the first main leg unit, the second main leg unit, and the third main leg unit. In (13), the beam part provided in the first main leg part receives a compressive force or a shear force. As described above, since the first beam part 13 itself is made of concrete, the first beam part 13 is the first main leg part. It greatly resists the external force bending the leg. In addition, since the first beam part 13 formed in the first main leg part extends to the second main leg part and the third main leg part, the first beam part 13 extended to the second main leg part and the third main leg part. The beam part 13 exerts an effect of supporting the first beam part 13 part of the first main leg part.

In addition, for example, when the first main leg unit receives an external force that bends toward the fourth main leg unit, in the first beam unit 13 formed in a region adjacent to the first main leg unit, the second main leg unit, and the fourth main leg unit. In the beam portion provided in the first main leg portion and the first beam portion 13 formed in a region adjacent to the first main leg portion, the third main leg portion, and the fourth main leg portion, the beam portion provided in the first main leg portion compresses the compressive force. Alternatively, a shear force is applied. As described above, since the first beam part 13 itself is made of concrete, the two first beam parts 13 greatly resist the external force bending the first main leg part. In addition, since the two first beams 13 formed in the first main leg part extend to the second main leg part and the fourth main leg part, respectively, and extend to the third main leg part and the fourth main leg part, The first beam portion 13 extending to the second main leg portion and the fourth main leg portion and the first beam portion 13 extending to the third main leg portion and the fourth main leg portion are the first It exhibits the effect of supporting the two first beam parts 13 of the first main leg part.

Additionally, in the interior of the first beam part 13, reinforcing bars may be reinforced along the longitudinal direction thereof. Then, for example, when the first main leg part receives an external force bending toward the second main leg part and the third main leg part, the first beam part provided in the first main leg part, the second main leg part, and the fourth main leg part In (13), the beam of the second main leg part of the first beam part 13 provided in the first main leg part, the first main leg part, the third main leg part, and the fourth main leg part. In addition, the first main leg unit resists tensile force or shear force generated when the first main leg unit is bent toward the second main leg unit and the third main leg unit, thereby greatly resisting the external force bending the first main leg unit.

This effect will be the same even when, for example, the first main leg part receives an external force that bends toward the fourth main leg part.

In addition, the sofa block 1 further includes a second beam unit 15 . The second beam part 15 is formed at a portion where the two adjacent main leg parts 10 contact each other in order to reinforce the proximal ends of the two adjacent main leg parts 10 .

The second beam part 15 is protruded from the surface of the main leg part 10 in the centrifugal direction, and is made of any one along the periphery of the part where two adjacent main leg parts 10 meet at the center of the sofa block. It may extend from the center of the first beam part 13 to the center of the first beam part 13 adjacent thereto. In the sofa block of the tetrapod type as in the first embodiment, six second beam portions 15 as above are provided.

If necessary, reinforcing bars may also be provided in the second beam unit 15 .

Since the second beam part 15 is formed along a portion where two adjacent main leg parts 10 contact each other in the center of the sofa block, as shown in FIGS. 2 and 4, the three adjacent main leg parts 10 With the center of the meeting point, three portions of one Y-shaped first beam unit 13 are arranged at intervals of 120 degrees, and three second beam units 15 are arranged at intervals of 120 degrees. This can be said to have the same shape as when the six beam parts are arranged at intervals of 60 degrees around the part where the three neighboring main leg parts 10 meet.

Accordingly, for example, when the first main leg unit receives an external force that bends toward the second main leg unit and the third main leg unit, the first main leg unit, the second main leg unit, and the third main leg unit are formed in adjacent parts. In the first beam part 13, the beam part provided in the first main leg part resists compressive force and shear force, and a part of the first beam part 13 extending to the second main leg part and the third main leg part; The compression or shearing resistance of the second beam part 15 between the second main leg part and the third main leg part supports the compression or shearing resistance of the first beam part 13 provided in the first main leg part. In addition, if reinforcing bars are provided in the second beam part 15 , the second beam part 15 between the first main leg part and the second main leg part and the second beam part between the first main leg part and the third main leg part The tensile or shear resistance of (15) supports the first beam part 13 provided in the first main leg part.

That is, no matter which direction the main leg part receives an external force, both the first beam part 13 and the second beam part 15 extending in various directions provide sufficient resistance to the stress generated by the external force.

As such, the first beam part 13 and the second beam part 15 of the first embodiment greatly reinforce the strength of the main leg part 10, and even if the cross section of the main leg part 10 is small, the main leg part 10 to prevent breakage in the In addition, the first beam part 13 and the second beam part 15 provide rigidity that can sufficiently resist stress generated in the main leg part 10 due to the sub-leg part 30 being subjected to an external force. do.

In addition, since the first beam part 13 and the second beam part 15 provide considerable curvature to the surface of the smooth tetrapod, the wave effect is greatly increased. In addition, this shape provides an excellent habitat for marine ecosystems.

In the first embodiment, it is exemplified that the cross-sectional shapes of the first and

second beams

13 and 15 are rectangular. However, as described several times, this is only exemplary, and the cross-sectional shape may vary.

The first beam part 13 is connected to the back surface of the sub-leg part 30 connected to the end of the main leg part 10 . That is, both the main leg part 10 and the first beam part 13 are connected to the back surface of the sub leg part 30 . The first beam part 13 reinforces the strength of the connection portion between the sub-leg part 30 and the main leg part 10 . In addition, since the first beam part 13 is directly connected to the sub-leg part 30 , when the sub-leg part 30 receives an external force, the distance between the sub-leg part 30 and the main leg part 10 is In addition to reinforcing the connection part, it also resists stress generated in the main leg part 10 due to an external force applied to the sub-leg part 30 .

In one sub-leg part 30 , three first beam parts 13 are connected at intervals of 120 degrees.

According to the first embodiment, the first beam part 13 is connected to the radiation angle part 40 . Accordingly, it is possible to more stably support the radial portion 40 protruding more outward than the connecting portion 50 in the radial direction.

The sub-leg part 30 is a leg part surface beam part protruding from the surface of the radial angle part 40 and extending from the center of the sub leg part 30 to the ends of the three radial angle parts 40 in a Y-shape ( 43) is provided.

And the sub-leg part 30 is a connecting part surface beam part that protrudes from the surface of the inter-connection part 50 and extends from the center of the sub-leg part 30 to the ends of the three inter-connection parts 50 in a Y-shape. (53) is provided.

Accordingly, it can be said that six of the surface beam parts 43 and the connection part surface beam parts 53 are radially extended at intervals of 60 degrees. It has the same shape as the six beam units arranged at intervals of 60 degrees. Accordingly, the each part surface beam part 43 and the connecting part surface beam part 53 are similar to the first beam part 13 and the second beam part 15 for strength reinforcement, wave breaking ability, porosity improvement and marine ecosystem habitat space provision, etc. can exert the effect of

Also, if necessary, reinforcing bars may also be provided in the each part surface beam part 43 and the connecting part surface beam part 53 .

Then, for example, when one of the radiation angle parts 40 receives an external force and the surface beam part 43 of the corresponding radiation angle part 40 receives a compressive force or shear force, this compressive force or shear force is of the other two radiation angle parts 40 . It can be further supported by the compressive resistance of the connecting part surface beam part 53 of each part surface beam part 43 and the connecting part surface beam part 53 provided between them, and the tension of the connection part surface beam part 53 of the other two connecting parts 50 Or it may be further supported by shear resistance.

The reinforcing bars reinforced in the each part surface beam part 43 and the connecting part surface beam part 53 are connected to the reinforcing bars of the first beam part 13, so that higher strength may be secured.

The cross section of each part surface beam part 43 and the connecting part surface beam part 53 is square.

The each part surface beam part 43 and the connecting part surface beam part 53 may increase the surface curvature of the sub-leg part 30, thereby improving the sofa effect. In addition, it becomes an excellent habitat for marine ecosystems.

On the other hand, although not directly described in the description of the embodiment, a chamfer can be added to prevent breakage of the sharp corner of the sofa block and to solve the sharpness, and the cross-section of the deep corner (the corner of the structure) can be reinforced and easy Of course, it is possible to form a haunchi for demolding the formwork.

[Second embodiment]

Hereinafter, a second embodiment of the sofa block according to the present invention will be described with reference to FIGS. 6 to 10 . In describing the second embodiment, differences from the first embodiment will be mainly described. Therefore, although not directly mentioned in the description of the second embodiment, such matters may be fully understood from the description of other embodiments, for example, the first embodiment.

The sofa block of the second embodiment, in contrast to the first embodiment, further includes a back side beam part 45 of the angle part on the back surface of the radiation angle part 40 of the sub-leg part 30 . The cross section of the back-beam portion 45 is rectangular.

The back-beam part 45 protrudes from the back surface of the radiation angle part 40 and extends from the center of the sub-leg part 30 to the ends of the three radiation angle parts 40 in a Y-shape. Since the back surface of the sub-leg part 30 is connected to the end of the main leg part 10 , the centripetal end of the back-side beam part 45 is connected to the circumferential surface of the main leg part 10 . accomplish

In addition, the centripetal end of the back-beam part 45 is also connected to the end of the first beam part 13 .

Reinforcing bars may be reinforced on the back-beam portion 45 of each part. The reinforcing bars of the back beam part 45 may be connected to the reinforcing bars reinforced in the first beam part 13 . In addition, the reinforcing bars of the back-beam part 45 may be connected to the reinforcing bars of the back-beam part 43 of each part.

As such, in the present invention, while forming the sub-leg part 30 at the end of the main leg part 10, the radial angle part 40 having a relatively small cross-section is formed into the leg part surface beam part 43 and the leg part back beam part 45. can be sufficiently reinforced.

For example, when one of the radiation angle parts 40 receives an external force and the surface beam part 43 of the radiation angle part 40 receives a compressive force or a shear force, the tension or The shear resistance force supports the radial angle part 40 so that the radial angle part 40 is not deformed or damaged.

In particular, since the back-beam part 45 is connected to the first beam part 13 , it more firmly supports the radial angle part 40 elongated in the radial direction.

In addition, the back side beam part 45 of each part increases the curvature of the back surface of the sub-leg part 30, thereby improving the sofa effect.

[Third embodiment]

Hereinafter, a third embodiment of the sofa block according to the present invention will be described with reference to FIGS. 11 to 15 . In the description of the third embodiment, the differences from the second embodiment will be mainly described. Therefore, although not directly mentioned in the description of the third embodiment, such matters may be fully understood from the description of other embodiments, for example, the first or second embodiments.

The sofa block of the third embodiment, in contrast to the second embodiment, further includes a connecting part back beam part 55 on the back surface of the connecting part 50 between the sub-leg parts 30 . The cross section of the connecting part back beam part 55 is rectangular.

The connecting part back beam part 55 protrudes from the back surface of the inter-connection part 50 and extends from the center of the sub-leg part 30 to the ends of the three inter-connection parts 50 in a Y-shape. Since the back surface of the sub-leg part 30 is connected to the end of the main leg part 10 , the centripetal end of the connecting part back-beam part 55 is connected to the circumferential surface of the main leg part 10 . accomplish

A reinforcing bar may be provided in the connecting part back beam part 55 . The reinforcing bar of the connecting part back beam part 55 may be connected to the reinforcing bar reinforced in the connecting part surface beam part 53 .

A portion in which the inter-connection part 50 overlaps the end of the main leg part 10 in a radial direction is directly connected to the main leg part 10, and the inter-connection part 50 radially overlaps the main leg part 10 . A portion extending more in the centrifugal direction than the end of (10) is connected to the main leg portion (10) through the connecting portion back-beam portion (55). Accordingly, the connecting part backside beam part 55 further reinforces the connection strength between the connection part 50 between the sub-leg part 30 and the main leg part 10 .

The three back-beam parts 45 and the three connection back-beam parts 55 provided in one sub-leg part 30 may be radially arranged at intervals of 60 degrees. Accordingly, it is possible not only to further enhance the strength reinforcement effect, but also to increase the curvature of the back surface of the sub-leg part 30 , thereby improving the sofa effect.

[Fourth embodiment]

Hereinafter, a fourth embodiment of the sofa block according to the present invention will be described with reference to FIGS. 16 to 20 . In describing the fourth embodiment, differences from the second embodiment will be mainly described. Therefore, although not directly mentioned in the description of the fourth embodiment, such matters may be fully understood from the description of other embodiments, for example, the first to third embodiments.

The sofa block of the fourth embodiment is different from that of the second embodiment in that the shape of the sub-leg part 30 is the same, but the direction is rotated by 60 degrees. That is, in the sub-leg part 30 of the sofa block 1 of the fourth embodiment, as shown in FIG. 18 , the direction in which the radial part 40 extends from the end of the main leg part 10 is the A direction corresponding to the extending direction of the main leg unit 10 and the remaining three main leg units 10 adjacent to the main leg unit 10 .

Then, as shown in FIG. 20 , the two radial parts 40 of the sub-leg part 30 provided at the ends of the second main leg part to the fourth main leg part come into contact with the ground. This is, the mounting posture of the sofa block 1 is more stable than the shape of the sofa block of the second embodiment in which one radiation angle part 40 is in contact with the ground, and the self-weight of the sofa block 1 is several radiation angle parts 40 ), which has a more dispersed effect.

In addition, according to the fourth embodiment, the end of the first beam part 13 is connected to the back surface of the inter-connection part 50 of the sub-leg part 30 . At this time, if the radial extension length of the connecting portion 50 is the same as the radial height of the first beam portion 13 , the first beam portion 13 serves as the connecting portion, even the function of the beam portion 55 .

And according to the fourth embodiment, the side beam part 45 of each part of the sub leg part 30 has its radially inner end, that is, the centripetal end, not connected to the first beam part 13, but the main leg part ( 10) is connected to the circumferential surface.

[Example 5]

Hereinafter, a fifth embodiment of the sofa block according to the present invention will be described with reference to FIGS. 21 to 25 . In the description of the fifth embodiment, the differences from the first embodiment will be mainly described. Therefore, although not directly mentioned in the description of the fifth embodiment, such matters may be fully understood from the description of other embodiments, for example, the first to fourth embodiments.

The sofa block 1 of the fifth embodiment is different from the first embodiment in that the radial extension distance of the connecting portion 50 reaches the end of the radial angle portion 40 . According to this, the sub-leg part 30 forms a hexagon.

The sofa block 1 of the fifth embodiment, since the shape of the sub-leg part 30 becomes simpler than that of the first embodiment, has the advantage of being easier to manufacture. In addition, since the length of the connecting portion surface beam portion 53 becomes longer compared to the first embodiment, the sofa effect is further improved.

[Sixth embodiment]

Hereinafter, a sixth embodiment of the sofa block according to the present invention will be described with reference to FIGS. 26 to 30 . In describing the sixth embodiment, differences from the fifth embodiment will be mainly described. Therefore, although not directly mentioned in the description of the sixth embodiment, such matters may be fully understood from the description of other embodiments, for example, the first to fifth embodiments.

The sofa block 1 of the sixth embodiment further includes, on the back surface of the sub-leg part 30 , a back-beam part 45 and a back-beam part 55 in connection with the fifth embodiment. The cross-section of the back-beam section 45 and the back-beam section 55 of the connecting section are rectangular. Of course, as described above, the back beam part 45 is provided on the back surface of the radiation angle part 40 , and the back beam part 55 is provided on the back surface of the connection part 50 between them.

In other words, the sofa block 1 of the sixth embodiment is different from the third embodiment in that the radial extension distance of the connecting portion 50 reaches the end of the radial angle portion 40. may be Effects due to this difference between the sixth embodiment and the fifth embodiment are the same as those of the third embodiment.

[Seventh embodiment]

Hereinafter, a seventh embodiment of the sofa block according to the present invention will be described with reference to FIGS. 31 to 35 . Matters not directly described in the seventh embodiment may be fully understood from the description of the corresponding content in other embodiments.

Since the sofa block of the seventh embodiment is the same as that of the first embodiment in the shape of the main leg part 10 itself and the sub-leg part 30, the overlapping description will be omitted.

In comparison with the first embodiment, the sofa block of the seventh embodiment is provided with a third beam part 17 instead of the second beam part 15 being omitted.

The sofa block 1 has a shape protruding from the circumferential surface of the main leg unit 10 in the centrifugal direction, and has a first beam unit 13 and a third extending along the longitudinal direction of the main leg unit 10 . A beam portion 17 is provided.

The third beam unit 17 may have an I-shape. Specifically, the third beam unit 17 is configured to connect two adjacent main leg units 10 .

The third beam unit 17 is protruded in the centrifugal direction from the surface of the main leg unit 10, and the two main legs from a point where two neighboring main leg units 10 meet at the center of the sofa block. It is a form extending in an I-shape to the end of the part 10 . Accordingly, the third beam unit 17 includes a region adjacent to the first main leg part and the second main leg part, a part adjacent to the first main leg part and the third main leg part, and the first main leg part and the fourth main leg part. The leg parts are adjacent to each other, the second main leg part and the third main leg part are adjacent to each other, the second main leg part and the fourth main leg part are adjacent to each other, and the third main leg part and the fourth main leg part are out. may be formed on the site. At this point, six third beam units 17 may be provided.

The first beam part 13 can further secure the strength of the main leg part 10 while reducing the area of the cross-section of the main leg part 10 , and in particular, in a radial direction from the central axis of the main leg part 10 . By being disposed at the furthest position to the, the bending rigidity of the main leg portion 10 is greatly reinforced. Since the first beam part 13 itself is made of concrete, the first beam part 13 can exert a very large resistance to compressive force or shear force generated along its longitudinal direction.

The third beam unit 17 can also reduce the area of the cross-section of the main leg unit 10 and further secure the strength of the main leg unit 10 . When the cross-sectional shape of the main leg unit 17 is circular or hexagonal, the third beam unit 17 is also disposed at the position furthest from the central axis of the main leg unit 10 in the radial direction, so that the bending rigidity of the main leg unit 10 is will be greatly reinforced. When the cross-sectional shape of the main leg unit is an equilateral triangle, the third beam unit 17 is disposed at a position farthest in the radial direction from the central axis of the main leg unit 10 , so that the bending rigidity of the main leg unit 10 . will be greatly reinforced.

Since the first beam part 13 and the third beam part 17 themselves are composed of concrete, the first beam part 13 and the third beam part 17 exert a very large resistance to the compressive force or shear force generated along the longitudinal direction. can

For example, when the first main leg unit receives an external force that bends toward the second main leg unit and the third main leg unit, the first beam unit is formed in adjacent parts of the first main leg unit, the second main leg unit, and the third main leg unit. (13), a third beam unit 17 formed in a region adjacent to the first main leg unit and the second main leg unit, and third beam units 17 formed in a region adjacent to the first main leg unit and the third main leg unit. In the above, the beam parts provided in the first main leg part are subjected to compressive force or shear force. As described above, since the first beam part 13 and the third beam part 17 themselves are made of concrete, the corresponding part is the first main part. It greatly resists the external force bending the leg. In addition, since the first beam part 13 and the third beam part 17 formed in the first main leg part extend to the second main leg part and the third main leg part, the second main leg part and the third main leg part The first beam part 13 and the third beam part 17 extending to the leg part exert an effect of supporting the first beam part 13 and the third beam part 17 part of the first main leg part.

In addition, in the interior of the first beam part 13 and/or the third beam part 17, reinforcing bars may be reinforced along the longitudinal direction thereof. Then, the first beam part 13 and/or the third beam part 17 can resist tensile force and shear force.

As such, the first beam part 13 and the third beam part 17 of the seventh embodiment greatly reinforce the strength of the main leg part 10, and even if the cross section of the main leg part 10 is small, the main leg part 10 to prevent breakage in the In addition, the first beam part 13 and the third beam part 17 provide rigidity that can sufficiently resist stress generated in the main leg part 10 due to the sub-leg part 30 being subjected to an external force. do.

In addition, since the first beam portion 13 and the third beam portion 17 provide considerable curvature to the smooth surface of the tetrapod, the sofa effect is greatly enhanced.

In the seventh embodiment, it is exemplified that the cross-sectional shapes of the first beam part 13 and the third beam part 17 are rectangular.

The first beam part 13 and the third beam part 17 are connected to the back surface of the sub-leg part 30 connected to the end of the main leg part 10 . That is, the main leg part 10 , the first beam part 13 , and the third beam part 17 are all connected to the back surface of the sub leg part 30 . The first beam part 13 and the third beam part 17 reinforce the strength of the connection part between the sub-leg part 30 and the main leg part 10 . And, since the first beam part 13 and the third beam part 17 are directly connected to the sub-leg part 30, when the sub-leg part 30 receives an external force, the sub-leg part 30 and In addition to reinforcing the connection portion between the main leg parts 10 , it also resists stress generated in the main leg part 10 due to an external force applied to the sub-leg part 30 .

In one sub-leg part 30, three first beam parts 13 are connected at intervals of 120 degrees, and three third beam parts 17 are connected at intervals of 120 degrees, and the first beam part 13 and The third beam units 17 are arranged at intervals of 60 degrees.

According to the seventh embodiment, the first beam part 13 is connected to the radiation angle part 40 , and the third beam part 17 is connected to the inter-connection part 50 . Accordingly, the sub-leg part 30 can be supported more stably by both the radial angle part 40 and the connecting part 50 between them.

Accordingly, it can be said that the six surface beam portions 43 and the connecting portion surface beam portions 53 are radially extended at intervals of 60 degrees. This corresponds to the arrangement of the first beam unit 13 and the third beam unit 17 described above.

The reinforcing bars reinforced in the each surface beam part 43 and the connecting part surface beam part 53 are connected to the reinforcing bars of the first beam part 13 and the third beam part 17, so that the strength reinforcement can be made more reliably.

[Eighth embodiment]

Hereinafter, an eighth embodiment of a sofa block according to the present invention will be described with reference to FIGS. 36 to 40 . In the description of the eighth embodiment, the differences from the seventh embodiment will be mainly described.

The sofa block of the first embodiment includes a first beam unit 13 and a second beam unit 15 . And the sofa block of the seventh embodiment includes a first beam unit 13 and a third beam unit 17 . In contrast to this, the sofa block of the eighth embodiment is characterized in that it includes all of the first beam part 13 , the second beam part 15 and the third beam part 17 .

At this time, the central portions of the six second beam portions 15 cross each other with the central portions of the six third beam portions 17 . That is, the sofa block of the eighth embodiment is provided with the most diverse beams in comparison with the sofa blocks of the first and seventh embodiments, so that the strength of the main leg portion can be greatly reinforced.

[Example 9]

Hereinafter, a ninth embodiment of a sofa block according to the present invention will be described with reference to FIGS. 41 to 45 . In the description of the ninth embodiment, differences from the eighth embodiment will be mainly described.

In contrast to the eighth embodiment, the sofa block of the ninth embodiment further includes a back side beam part 45 on the back surface of the radiation angle part 40 of the sub leg part 30 . The cross section of the back-beam portion 45 is rectangular.

On the other hand, the end of the third beam part 17 is connected to the back surface of the inter-connection part 50 of the sub-leg part 30 , and the radial extension length of the inter-connection part 50 is the radial direction of the third beam part 17 . If it is set to be the same as the height, it is possible to make the third beam part 17 function as the connecting part back beam part 55 (a similar effect has been described in the fourth embodiment).

[Example 10]

Hereinafter, a tenth embodiment of the sofa block of the present invention will be described with reference to FIGS. 46 to 50 . In the description of the tenth embodiment, differences from the ninth embodiment will be mainly described.

The sofa block of the tenth embodiment is different from that of the ninth embodiment in that the shape of the sub-leg part 30 is the same, but the direction is rotated by 60 degrees. That is, in the sub-leg part 30 of the sofa block 1 of the tenth embodiment, as shown in FIG. 48 , the direction in which the radial part 40 extends from the end of the main leg part 10 is the A direction corresponding to the extending direction of the main leg unit 10 and the remaining three main leg units 10 adjacent to the main leg unit 10 .

Then, as shown in FIG. 50 , the two radial parts 40 of the sub-leg part 30 provided at the ends of the second main leg part to the fourth main leg part come into contact with the ground. This is, than the shape of the sofa block of the ninth embodiment in which one radiation angle part 40 is in contact with the ground, the mounting posture of the sofa block 1 is more stable, and the self-weight of the sofa block 1 is several radiation angle parts 40 ), which has a more dispersed effect.

Also, according to the tenth embodiment, the end of the first beam part 13 is connected to the back surface of the inter-connection part 50 of the sub-leg part 30 , and the end of the third beam part 17 is the back surface of the radiation angle part 40 . is connected with At this time, if the radial extension length of the connecting part 50 is set to be the same as the radial height of the first beam part 13, the function of the beam part 55 is also performed if the first beam part 13 is a connecting part. .

And according to the tenth embodiment, the side beam part 45 of each part of the sub-leg part 30 has a radially inner end, that is, a centripetal end thereof, connected to the third beam part 17 while being connected to the main leg part (10). connected to the perimeter of

[Example 11]

Hereinafter, an eleventh embodiment of the sofa block of the present invention will be described with reference to FIGS. 51 to 55 . In the description of the eleventh embodiment, differences from the ninth embodiment will be mainly described.

The sofa block 1 of the eleventh embodiment is different from the ninth embodiment in that the radial extension distance of the connecting portion 50 reaches the end of the radial angle portion 40 . According to this, the sub-leg part 30 forms a hexagon.

The sofa block 1 of the eleventh embodiment has the advantage of being easier to manufacture because the shape of the sub-leg part 30 becomes simpler than that of the ninth embodiment. In addition, since the length of the connecting part surface beam part 53 becomes longer compared to the ninth embodiment, the sofa effect is further improved.

In addition, the sofa block 1 of the eleventh embodiment further includes a connecting part back beam part 55 on the back side of the connecting part back beam part 55 of the sub-leg part 30, as compared with the ninth embodiment. Therefore, since the length of the connecting part back beam part 55 on the back surface of the sub-leg part 40 becomes longer, the sofa effect is further improved.

[12th embodiment]

Hereinafter, a twelfth embodiment of the sofa block of the present invention will be described with reference to FIGS. 56 to 60 . Parts not directly described in the description of the twelfth embodiment may be understood with reference to the contents of the first to eleventh embodiments.

The sofa block of the twelfth embodiment may also be substantially in the form of a tetrapod. The cross-section of the four main leg parts 10 extending radially from the center of the sofa block 1 (a plane cut in a plane perpendicular to the central axis of the leg part) may be hexagonal. In addition, the main leg portion 10 may be in the form of a truncated cone whose cross section gradually decreases from the center to the end. That is, the main leg portion 10 of the sofa block 1 of the twelfth embodiment may have a regular hexagonal truncated pyramid shape.

A first beam part 13 and a third beam part 17 are provided on the circumferential surface of the main leg part 10 . The first beam part 13 may be a Y-shaped beam part 13 connecting the three main leg parts 10 . Also, the third beam unit 17 may be an I-beam unit 17 connecting the two main leg units 10 .

All four main leg parts may have the same shape, and for convenience of explanation, the main leg part facing upward when the sofa block is placed on the ground among the four main leg parts is referred to as the first main leg part, and the remaining main legs in contact with the ground The units are referred to as a second main leg unit, a third main leg unit, and a fourth main leg unit, respectively.

Then, the Y-beam part 13 is formed in a portion adjacent to the first main leg part, the second main leg part, and the third main leg part, and the first main leg part, the second main leg part, and the fourth main leg part are formed. The first main leg part, the third main leg part, and the fourth main leg part are formed in adjacent parts, and the second main leg part, the third main leg part, and the fourth main leg part are adjacent to each other. It may be formed in the As such, four Y-beam units 13 may be provided.

And the I-beam portion 17 includes a portion adjacent to the first main leg portion and the second main leg portion, a portion adjacent to the first main leg portion and the third main leg portion, and the first main leg portion and the fourth main leg portion. Areas adjacent to each other, areas adjacent to the second main leg and the third main leg, areas adjacent to the second main leg and the fourth main leg, and areas where the third main leg and the fourth main leg are out can be formed in At this point, six third beam units 17 may be provided.

The Y-beam part 13 and the I-beam part 17 protrude from the circumferential surface of the main leg part 10 in the centrifugal direction. Looking at one main leg part 10 as a reference, the Y-beam part 13 and the I-beam part 17 may each be arranged three by one, and these are 60 degrees along the circumferential direction of the main leg part 10 . They may be arranged alternately at intervals. These Y-beam parts 13 and I-beam parts 17 may be arranged at corners (vertices) of a hexagonal or regular hexagonal cross-sectional shape of the main leg part 10 .

Then, the surface of the Y-beam part 13, the I-beam part 17, and the main leg part 10 constitutes a flat surface, so that the formwork can be manufactured more easily. In addition, if the cross-sections of the Y-beam part 13 and the I-beam part 17 protrude outward in the radial direction from the main leg part 10 are longer, and the cross-sectional area thereof is increased, the

beam parts

13 and 17 are The effect of reinforcing the main leg part 10 can be increased, and the valley shape between the Y-beam part 13 and the I-beam part 17 can further enhance the sofa effect of the sofa block.

The cross-sectional shape of the Y-beam part 13 and the I-beam part 17 is a rectangular shape, and may be an equilateral trapezoid having an approximate height longer than the width, and the height direction of the trapezoid is in the radial direction of the main leg part 10 . Correspondingly, the width direction of the trapezoid may be arranged to correspond to the circumferential direction of the main leg portion (10).

By configuring the beam section in a trapezoidal cross section in this way, demolding of the formwork can be more advantageous.

Inside the Y-beam part 13 and the I-beam part 17, reinforcing bars may be additionally reinforced as needed for strength reinforcement.

A sub-leg part 30 is connected to an end of the main leg part 10 .

The sub-leg part 30 may be in the form of a flat plate having a predetermined thickness and perpendicular to the central axis of the main leg part 10 .

The three radial portions 40 are radially extended on a plane.

The sub-leg part 30 further includes a connection part 50 therebetween.

A length in which the connecting part 50 extends radially from the center of the sub-leg part 30 is smaller than a length in which the radial angle part 40 extends radially from the center of the sub-leg part 30 . In the twelfth embodiment, in the circumferential direction, the front end of the sub-leg portion 30 may be in a form that meets or abuts the front end of the radial angle portion 40 . Then, the radial extension length of the radial portion 40 is longer than the radial extension length of the connecting portion 50, but the width of the connecting portion 50 in the circumferential direction may be greater than the width of the radial portion 40. .

According to the radial angle part 40 and the connection part 50 between them, the cross-sectional shape of the sub-leg part 30 may be a hexagonal shape.

According to the twelfth embodiment, the front end of the Y-beam portion 13 may be connected to the base end of the radiation angle portion 40, and the front end of the I-beam portion 17 may be connected to the proximal end of the inter-connection portion 50. can Accordingly, the radiation angle portion 40 may more protrude in the centrifugal direction than the Y-beam portion 13, and the connecting portion 50 may more protrude in the centrifugal direction than the I-beam portion 17. .

The Y-beam part 13 and the I-beam part 17 that protrude further in the centrifugal direction are engaged with each other between adjacent sofa blocks to increase the interlocking function.

Accordingly, the surface beam part 43 and the connection part surface beam part 53 can form six radially extending at intervals of 60 degrees. This is the same form as the six

beam parts

13 and 17 arranged at intervals of 60 degrees around the main leg part 10 . Accordingly, the each part surface beam part 43 and the connecting part surface beam part 53, like the Y-beam part 13 and the I-beam part 17, reinforce the strength, improve the breaking ability, improve the porosity, and provide a marine ecosystem habitat. effects such as That is, the surface beam part 43 and the connecting part surface beam part 53 may increase the surface curvature of the sub-leg part 30, thereby improving the sofa effect. In addition, it becomes an excellent habitat for marine ecosystems.

The reinforcing bars reinforced in the each part surface beam part 43 and the connecting part surface beam part 53 are connected to the reinforcing bars of the Y-beam part 13 and the I-beam part 17, so that higher strength may be secured.

The cross-sections of the each part surface beam part 43 and the connecting part surface beam part 53 are rectangular, and may have an equilateral trapezoidal shape.

An end chamfer surface 433 and a connection beam chamfer surface 533 may be provided at the ends of the each surface beam part 43 and the connecting part surface beam part 53, respectively. The chamfer angles of the chamfered

surfaces

433 and 533 are, as shown in FIG. 60, when the sofa block is placed on a flat ground, the front end surface of each part beam part 43, which is the tip surface of each part beam part tip chamfer surface, is It may be set to an angle capable of surface contact with the ground. And this chamfer angle may be equally applied to the connecting part beam part chamfer surface 533 .

Meanwhile, according to the twelfth embodiment, in order to reinforce the connection strength between the sub-leg part 30 and the main leg part 10, each part back beam part 45 and the connection part back beam part 55 are provided as in the eleventh embodiment. Instead, the sub-leg part 30 and the main leg part 10 provide a heonchi part 60 for reinforcing the corner where the connected part is connected.

The heonchi part 60 may be provided between the back surface of the sub-leg part 30 and the circumferential surface of the main leg part 10 . In particular, when the heonchi part 60 is formed to extend to the tip of the sub-leg part 30, and the angle between the surface of the heonchi part 60 and the surface of the main leg part 10 forms an obtuse angle, the sub-leg part Not only can the strength of the connection between (30) and the main leg part (10) be reinforced, it is easier to demold the formwork corresponding to the back surface of the sub-leg part (30) and the circumferential surface of the main leg part (10). lose

The heonchi portion 60 may include planes corresponding to each of the radial portions 40 and the connecting portions 50 between them. And the heonchi portions of the neighboring radial portion 40 and the connecting portion 50 may be interconnected without a step difference.

[Offshore structure for mounting sofa block]

The sofa block 1 of the present invention has a form further comprising a sub-leg portion 30 having three radial angle portions at the end of the main leg portion 10 of the sofa block 1 . Accordingly, as in the first, 2, 3, 5, 6, 7, 8, 9, 11, and 12 embodiments, one of the three radial parts may be made to touch the ground, and as in the fourth and tenth embodiments, 3 Two of the radiating angles may be made to touch the ground.

61 to 66 show an offshore structure in which the sofa blocks of the twelfth embodiment are laminated in a one-layer manner.

First, referring to FIG. 61 which is a perspective view and FIG. 62 which is a plan view, the sofa blocks 1 are mounted side by side in a first direction. At this time, each sofa block 1 is mounted so that the first main leg part faces upward, and the second to fourth main leg parts are placed on the ground. In addition, when mounting the sofa blocks 1 along the first direction, the second main leg portion of any one sofa block is mounted to face one side of the second direction perpendicular to the first direction, and the sofa block adjacent to this is mounted to the second direction. 2 The main leg part is mounted to face the other side in the second direction.

And the sub-leg part of the third main leg part and the sub-leg part of the fourth main leg part of one sofa block (1) are mounted so as to be in contact with or close to the center of the other sofa blocks (1) adjacent thereto in the first direction. .

And the width portion occupied by one sofa block 1 in the second direction and the width portion occupied by the other sofa block 1 adjacent thereto in the second direction are mounted to correspond to each other. That is, referring to FIG. 62 , the front end of the second main leg of one sofa block 1 and the third and fourth main leg portions of the other sofa block 1 adjacent thereto in the first direction, It may be disposed on a straight line substantially extending in the first direction.

Accordingly, the center of any one sofa block 1 and the center of the sofa block 1 adjacent thereto in the first direction may be arranged at positions slightly shifted from each other in the second direction.

Next, referring to FIG. 63 which is a perspective view and FIG. 64 which is a plan view, the second row sofa blocks are mounted adjacent to the first row sofa blocks (see FIGS. 61 and 62 ) mounted in the first direction in the second direction. . The second row sofa blocks mounted in the first direction are mounted such that the first main leg part faces downward and is mounted on the ground, and the second to fourth main leg parts face upward. In addition, when mounting the second row sofa blocks 1 along the first direction, the second main leg portion of any one sofa block is mounted to face one side in the second direction, and the adjacent sofa block is the second main leg The part is mounted to face the other side in the second direction.

And the sub-leg part of the third main leg part and the sub-leg part of the fourth main leg part of any one sofa block 1 in the second row are in contact with or close to the center of the other sofa blocks 1 adjacent thereto in the first direction. hold it so that

And the width portion occupied by any one sofa block 1 in the second row in the second direction and the width portion occupied by the other sofa block 1 adjacent thereto in the second direction are mounted to correspond to each other. That is, referring to FIG. 64 , the front end of the second main leg portion of one of the sofa blocks 1 in the second row of sofa blocks, and the third main leg portion of the other sofa block 1 adjacent thereto in the first direction, The fourth main leg portion may be disposed on a straight line substantially extending in the first direction.

Accordingly, even in the second row, the center of any one sofa block 1 and the center of the sofa block 1 adjacent thereto in the first direction may be arranged at positions slightly shifted from each other in the second direction.

And, between the sofa blocks adjacent in the second direction, on the second main leg portion of the sofa block in the first row, the second main leg portion of the sofa block in the second row is disposed, and the third main leg of the sofa block in the first row On the part and the fourth main leg part, the third main leg part and the fourth main leg part of the second row sofa block are respectively arranged.

Next, referring to the perspective views of FIGS. 65 and 66 , adjacent to the second row sofa blocks (see FIGS. 63 and 64 ) mounted in the first direction in the second direction, the third row sofa blocks are arranged in the first direction. hang along The sofa blocks of the third row mounted in the first direction are mounted to correspond to the sofa blocks of the first row again. At this time, between the sofa blocks adjacent to each other in the second direction, under the second main leg part of the sofa block in the second row, the second main leg part of the sofa block in the third row is disposed, and the third main leg part of the sofa block in the second row and under the fourth main leg part, the third main leg part and the fourth main leg part of the sofa block in the third row are arranged, respectively.

Under this rule, it is possible to stack sofa blocks in one layer.

In this case, the first direction may correspond to the inclined direction of the slope, and the second direction may correspond to the width direction of the slope. Of course, the present invention does not exclude that the first direction corresponds to the width direction of the slope and the second direction corresponds to the inclination direction of the slope.

67 to 70 show an offshore structure in which the sofa blocks of the twelfth embodiment are stacked in a two-layer manner.

In order to explain the mounting method of the first layer, first, referring to FIG. 67 which is a perspective view and FIG. 68 which is a plan view, the sofa blocks 1 are mounted side by side in the first direction. At this time, each sofa block 1 is mounted so that the first main leg part faces upward, and the second to fourth main leg parts are placed on the ground. In addition, when mounting the sofa blocks 1 along the first direction, the second main leg portion of any one sofa block is mounted to face one side in the second direction, and the second main leg portion of the adjacent sofa block is the second Mount it facing the other side of the direction.

And the width portion occupied by one sofa block 1 in the second direction and the width portion occupied by the other sofa block 1 adjacent thereto in the second direction are mounted to correspond to each other. That is, referring to FIG. 67, the front end of the second main leg of one sofa block 1, and the third and fourth main leg portions of the other sofa block 1 adjacent thereto in the first direction, It may be disposed on a straight line substantially extending in the first direction.

Next, adjacent to the sofa blocks of the first row mounted in the first direction in the second direction, the sofa blocks of the second row are mounted along the first direction. The second row sofa blocks can be mounted in the same arrangement and posture as the first row sofa blocks.

Then, adjacent to the second row sofa blocks mounted in the first direction in the second direction, the third row sofa blocks are mounted along the first direction. The sofa blocks in the third row can be mounted in the same arrangement and posture as the sofa blocks in the second row.

That is, the sofa blocks mounted on the first floor may be mounted so that the sofa blocks mounted on each row repeat the arrangement and posture corresponding to each other.

Next, in order to explain the mounting method of the second layer, referring to FIG. 69 which is a perspective view and FIG. 70 which is a plan view, in the sofa block mounted on the second floor, the first main leg part faces downward and the second to fourth The main leg part is mounted on the first layer in an upward-facing posture.

The first main leg portion of the sofa block of the second floor is mounted so that four sofa blocks adjacent to each other two in the first direction and two adjacent in the second direction in the first floor are placed on adjacent portions. For example, two sofa blocks (first and second sofa blocks) adjacent in the first direction in the first row of the first floor, and two sofa blocks in the first row adjacent in the first direction in the second row of the first floor The first main leg portion of the sofa block of the second floor is placed in a region where both sofa blocks (third and fourth sofa blocks) adjacent to (first and second sofa blocks) are also adjacent.

The sofa blocks mounted on the first row of the upper floor arranged in the first direction in the second floor are mounted so that the second main leg part of any one sofa block faces one side in the second direction, and the sofa block adjacent to it is the second main The leg portion is mounted to face the other side in the second direction.

And the width portion occupied by one sofa block 1 in the second direction and the width portion occupied by the other sofa block 1 adjacent thereto in the second direction are mounted to correspond to each other. That is, referring to FIG. 70, the front end of the second main leg part of one sofa block 1 and the third main leg part and the fourth main leg part of the other sofa block 1 adjacent thereto in the first direction, It may be disposed on a straight line substantially extending in the first direction.

In addition, among the sofa blocks mounted on the second floor, the sofa blocks of the second row of the upper floor adjacent to the first row in the second direction and mounted along the first direction, corresponding to the sofa blocks of the first row of the upper floor, are held in a position The upper floor sofa blocks of the second row are mounted on the sofa blocks of the second row and the sofa blocks of the third row of the first floor.

Then, the sub-leg part provided at the end of the second main leg part of any one sofa block in the first row of the upper floor, the first main leg part of the two sofa blocks mounted adjacent to the first row in the first direction in the first direction It is spanned between the two sub-legs respectively provided on the corresponding two sub-legs. And the sub-leg parts respectively provided at the ends of the third main leg part and the fourth main leg part of any one sofa block in the first row of the upper floor are two sofa blocks mounted adjacent to each other in the second row of the first floor in the first direction. It is placed on each of the sub-legs respectively provided on the first main leg portion of the.

In addition, the sub-leg part provided at the end of the second main leg part of the sofa block adjacent to the first row of the upper floor is on the first main leg part of the two sofa blocks mounted adjacent to the second row of the first floor in the first direction in the first direction. It spans between the two sub-legs provided respectively. And the sub-leg parts respectively provided at the ends of the third main leg part and the fourth main leg part of the neighboring sofa blocks in the first row of the upper floor are two sofa blocks mounted adjacent to each other in the first direction in the first row of the first floor. They are respectively placed on the sub-legs respectively provided on the first main leg.

When the sofa block of the embodiment is mounted as described above, the sub-leg parts provided at the front end of the main leg part of the neighboring sofa blocks are interlocked with each other, as well as formed in the main leg part by the sub-leg part and the

beam parts

13 and 17. The curved shape is interlocked with each other, and the offshore structure made of the sofa block has the effect of being very firmly interconnected.

In addition, the curved shape formed by the

beam parts

43 and 53 of the sub-leg part and the

beam parts

13 and 17 of the main leg part greatly enhances the water current separation and breaking effect.

In addition, the geometrical beauty of the mounted blocks is excellent.

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in the present specification. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention are not explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

For example, among the shapes described above, the meaning that the cross-sectional shape is square means that the cross-sectional shape is substantially square. That is, if the corner portion of the square is chamfered, it can be technically called an octagon, but the practical effect is that it has the effect of a square, so it can be substantially called a square. In addition, for example, if both sides of the square have a slight inclination angle to facilitate demolding, it can be strictly called a trapezoid, but the practical effect is that it has a square effect, so it can be said that it is also substantially square. will be.

Claims

As a tetrapod-type sofa block including four main leg parts 10 extending from the center of a virtual tetrahedron toward each vertex of the tetrahedron, the sofa block 1 comprises:

Doedoe protruding from the surface of the main leg unit 10 in the centrifugal direction, beam units (13, 17) extending from the center of the sofa block to the end of the main leg unit (10); and

and a sub-leg part 30 connected to the end of the main leg part 10 and the ends of the beam parts 13 and 17.

The sub-leg part 30 extends in a centrifugal direction from the central axis of the main leg part 10, and the sub-leg part 30 includes:

three radial angle portions 40 extending radially at intervals of 120 degrees from the central axis of the main leg portion 10;

a connecting portion 50 connecting the two adjacent radial portions 40;

a corner surface beam portion 43 protruding from the surface of the radiation angle portion 40 and extending in a Y-shape from the center of the sub-leg portion 30 to the ends of the three radiation angle portions 40; and

and a connecting part surface beam part 53 protruding from the surface of the inter-connection part 50 and extending in a Y-shape from the center of the sub-leg part 30 to the ends of the three inter-connection parts 50;

The cross-sectional shape of the radial angle part 40 is longer than the direction corresponding to the circumferential direction of the main leg part 10 is longer than the direction corresponding to the extension direction of the main leg part 10,

The length of the connecting portion 50 radially extending from the center of the sub-leg portion 30 is equal to or smaller than the length of the radial angle portion 40 extending radially from the center of the sub-leg portion 30 . ,

The radial angle portion 40 and the connecting portion 50 between the beam portion (13, 17) extends outwardly longer than the ends of the beam portion (13, 17) longer outward, sofa block.
The method according to claim 1,

The beams 13 and 17 are

Doedoe protruding from the surface of the main leg part 10 in the centrifugal direction, from the point where all three main leg parts 10 neighboring in the center of the sofa block meet to the ends of the three main leg parts 10 Y Four first beam portions 13 extending in the shape of a ruler; and

Doedoe protruding from the surface of the main leg part 10 in the centrifugal direction, from the point where two main leg parts 10 adjacent in the center of the sofa block meet to the ends of the two main leg parts 10, an I-shape Six third beam portions 17 extending in the form;

A sofa block comprising at least any one of.
The method according to claim 1,

Doedoe protruding from the surface of the main leg part 10 in the centrifugal direction, the center beam part 15 extending along the circumference of the part where two main leg parts 10 neighboring in the center of the sofa block meet; further comprising , sofa block.
The method according to claim 1,

The main leg portion 10 is a truncated truncated shape that becomes smaller in cross section from the center of the sofa block toward the end of the main leg portion 10, or a column shape having a constant cross section, a sofa block.
The method according to claim 1,

The direction in which the radial angle part 40 extends from the end of the main leg part 10 is a direction corresponding to the extending direction of the main leg part 10 and the remaining three main leg parts 10 adjacent to the main leg part 10 or a direction thereof. In the opposite direction, the sofa block.
The method according to claim 1,

The sub-leg part 30 includes a back-beam part 45 protruding from the back surface of the radiation angle part 40 and extending from the circumferential surface of the main leg part 10 to an end of the radiation angle part 40; and a connecting part back beam part 55 protruding from the back surface of the inter-connection part 50 and extending from the circumferential surface of the main leg part 10 to the end of the inter-connection part 50;
The method according to claim 1,

The sofa block further comprising a heonchi portion 60 for reinforcing the corner portion where the back surface of the sub-leg portion 30 and the circumferential surface of the main leg portion 10 are connected.
An offshore structure on which a plurality of sofa blocks of any one of claims 1 to 7 are mounted,

The sofa blocks are mounted along the first direction, and the first main leg portion of the sofa block faces upward and the second to fourth main leg portions are placed on the floor surface, and the second main leg portion of any one sofa block is mounted. The sofa block is mounted to face one side in the second direction perpendicular to the first direction, and the adjacent sofa block is mounted such that the second main leg part faces the other side of the second direction, and the one sofa block occupies in the second direction. a first row sofa blocks mounted so that a width portion and a width portion occupied by the neighboring sofa blocks in the second direction correspond to each other; and

Adjacent to the first row sofa blocks in the second direction, the sofa blocks are mounted along the first direction, and the first main leg portion of the sofa block is placed on the floor toward the bottom and the second to fourth The main leg part is mounted to face upward, and the second main leg part of any one sofa block is mounted to face one side in the second direction, and the adjacent sofa block has the second main leg part to face the other side in the second direction. and second row sofa blocks mounted so that a width portion occupied by the one sofa block in the second direction and a width portion occupied by the neighboring sofa block in the second direction correspond to each other;

On the second main leg part of the sofa block in the first row, the second main leg part of the sofa block in the second row is disposed, and on the third main leg part and the fourth main leg part of the sofa block in the first row, the first A marine structure in which the third main leg part and the fourth main leg part of the second row sofa block are respectively disposed.
8. An offshore structure on which a plurality of sofa blocks of any one of claims 1 to 7 are mounted, wherein the offshore structure includes first-floor sofa blocks mounted on a floor surface, and a second-floor sofa mounted on the first floor. including blocks,

The first floor sofa blocks are:

The sofa blocks are mounted along the first direction, and the first main leg portion of the sofa block faces upward and the second to fourth main leg portions are placed on the floor surface, and the second main leg portion of any one sofa block is mounted. The sofa block is mounted to face one side in the second direction perpendicular to the first direction, and the adjacent sofa block is mounted such that the second main leg part faces the other side of the second direction, and the one sofa block occupies in the second direction. a first row sofa blocks mounted so that a width portion and a width portion occupied by the neighboring sofa blocks in the second direction correspond to each other;

Adjacent to the first row sofa blocks in the second direction, the sofa blocks are mounted along the first direction, and second row sofa blocks are mounted in an arrangement and posture corresponding to the first row sofa blocks. ; and

Adjacent to the second row sofa blocks in the second direction, the sofa blocks are mounted along the first direction, and the third row sofa blocks are mounted in an arrangement and posture corresponding to the second row sofa blocks. including;

The second floor sofa block is:

The sofa blocks are mounted along the first direction, and the first main leg part of the sofa block faces downward and the second to fourth main leg parts face upward, and the first main leg part is mounted on the first floor of the first floor. In the first row and the second row, four sofa blocks that are two adjacent in the first direction and two adjacent in the second direction are placed on adjacent portions, and the second main leg portion of any one sofa block is positioned in the second direction. The sofa block is mounted to face one side and the adjacent sofa block is mounted so that the second main leg part faces the other side in the second direction, and the width portion occupied by the one sofa block in the second direction and the neighboring sofa block are upper floor first row sofa blocks mounted so that the width portions occupied in the second direction correspond to each other; and

Adjacent to the sofa blocks in the first row in the second direction, the sofa blocks are mounted along the first direction, and the first main leg portion is 2 in the first direction in the second and third rows of the first floor. Upper-layer second-row sofa blocks placed on adjacent portions and having four sofa blocks adjacent to each other and two adjacent to each other in the second direction, mounted in an arrangement and posture corresponding to the upper-layer first-row sofa blocks; Including, offshore structures.
9. The method of claim 8,

The first direction corresponds to the inclination direction of the slope, the marine structure.