Floating structure

Abstract

To be able to improve the strength of a floating structure.SOLUTION: A floating structure 100 includes multiple cylindrical block bodies 10 placed parallel to each other, and a road surface body 30 placed on the multiple block bodies 10; each block body 10 has multiple small diameter portions 21 and multiple large diameter portions 22 arranged alternately along the direction of the axis 11 thereby an uneven structure 20 is formed, and between two adjacent block bodies 10, the uneven structure 20 of one block body 10 and the uneven structure 20 of the other block body 10 are fitted together, and the movement of the one block body 10 and the other block body 10 in the direction of the axis 11 is restricted relative to each other.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The technology disclosed herein relates to a floating structure. [Background technology]

[0002] Floating structures such as floating piers have been known for some time. For example, a floating pier as a floating structure disclosed in Patent Document 1 has a plurality of cylindrical floats and a plurality of floor plates installed on the floats. The floats are arranged in parallel. Each floor plate is bridged across two floats spaced apart from each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication No. 3054758 (Figure 9) Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the floating structure as described above, for example, when the floating structure is used in the ocean, the floats may be subjected to a lateral load in the direction of the axis of the float due to waves or the like. Such a lateral load may cause a relative misalignment between adjacent floats. Furthermore, the relative misalignment between adjacent floats may cause a relative misalignment between the floats and the floor plate. Thus, the strength of the floating structure is not sufficient.

[0005] The technology disclosed herein has been made in consideration of the above points, and its purpose is to improve the strength of a floating structure. [Means for solving the problem]

[0006] The floating structure disclosed herein comprises a plurality of cylindrical block bodies arranged parallel to each other, and a road surface body placed on the plurality of block bodies, each of which has a plurality of small diameter portions and a plurality of large diameter portions arranged alternately along the axial direction to form an uneven structure, and between two adjacent block bodies, the uneven structure of one block body fits together with the uneven structure of the other block body, so that the movement of the one block body and the other block body in the axial direction is restricted relative to each other. Effect of the Invention

[0007] According to the floating structure, the strength of the floating structure can be improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a floating body structure according to an embodiment. [Diagram 2] FIG. 2 is an explanatory diagram showing an example of use of the floating structure. [Diagram 3] FIG. 3 is a plan view of two adjacent units. [Figure 4] FIG. 4 is a cross-sectional view perpendicular to the axis of the large diameter portion of the block body. [Diagram 5] FIG. 5 is a side view seen from the direction of arrow A in FIG. [Figure 6] FIG. 6 is an enlarged view of the first connecting plate. [Figure 7] FIG. 7 is a side view showing the first connecting plate in an unfolded state and a folded state. [Figure 8] FIG. 8 is a plan view of two adjacent units. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX of FIG. [Figure 10] FIG. 10 is a cross-sectional view taken along line XX in FIG. [Figure 11] FIG. 11 is a cross-sectional view taken along line XI-XI of FIG. [Figure 12] FIG. 12 is a side view of the second road surface plate. [Figure 13]FIG. 13 is a plan view of the second road surface plate. [Figure 14] FIG. 14 is a cross-sectional view taken along line XIV-XIV of FIG. [Figure 15] FIG. 15 is a side view of the connecting plate. [Figure 16] FIG. 16 is a plan view of the connecting plate. [Figure 17] FIG. 17 is a bottom view of the connecting plate. [Figure 18] FIG. 18 is a cross-sectional view taken along line XVIII-XVIII of FIG. [Figure 19] FIG. 19 is an explanatory diagram for explaining the assembly of the floating structure. [Figure 20] FIG. 20 is an explanatory diagram for explaining the assembly of the floating structure. [Figure 21] FIG. 21 is an explanatory diagram for explaining the assembly of the floating structure. [Figure 22] FIG. 22 is an explanatory diagram showing the state of the floating structure at low tide. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an exemplary embodiment will be described in detail with reference to the drawings. Fig. 1 is a perspective view showing a floating body structure 100 according to an embodiment. Fig. 2 is an explanatory diagram showing an example of use of the floating body structure 100. In Fig. 1, for convenience, a road surface body 30 is depicted in a simplified manner.

[0010] The floating body structure 100 comprises a plurality of cylindrical block bodies 10 arranged parallel to each other, and a road surface body 30 placed on the plurality of block bodies 10. Here, "parallel" does not necessarily mean completely parallel, but includes substantially parallel, and this applies in the following description. The floating body structure 100 further comprises a first connecting plate 60 and a second connecting plate 70 that connect the plurality of block bodies 10.

[0011] The floating structure 100 is used, for example, as a floating pier, an emergency wharf, etc. For example, while the floating structure 100 is floating on the water surface 1, vehicles can run on the upper surface of the road surface body 30 as a road surface, and people can walk on the upper surface of the road surface body 30.

[0012] As shown in the drawings, for convenience of explanation, one direction in the extension direction of the floating body structure 100 is defined as the X direction. The extension direction of the floating body structure 100 is the direction connecting one crossing point and the other crossing point, in other words, the bridge axis direction. One width direction of the floating body structure 100 is defined as the Y direction. The width direction of the floating body structure 100 is the direction perpendicular to the extension direction of the floating body structure 100 on the upper surface of the floating body structure 100 (the upper surface of the road surface body 30), in other words, the direction perpendicular to the bridge axis. The upward direction in the vertical direction of the floating body structure 100 is defined as the Z direction. The X direction, Y direction, and Z direction are directions perpendicular to each other.

[0013] The floating structure 100 has a plurality of units 2 each formed by integrally connecting a plurality of block bodies 10 at least every two block bodies 10. Specifically, the plurality of block bodies 10 are arranged in the extending direction (X direction) of the floating structure 100. The plurality of block bodies 10 constitute a unit 2 at least every two block bodies 10 along the X direction. In this example, the floating structure 100 has ten block bodies 10, and two block bodies 10 constitute one unit 2. That is, the floating structure 100 has five units 2a to 2e. The first unit 2a, the second unit 2b, the third unit 2c, the fourth unit 2d, and the fifth unit 2e are arranged in order along the X direction. When the first unit 2a, the second unit 2b, the third unit 2c, the fourth unit 2d, and the fifth unit 2e are not distinguished from each other, they are simply referred to as "units 2".

[0014] In each unit 2, the two block bodies 10 are connected together by a first connecting plate 60. In other words, the first connecting plate 60 connects the multiple block bodies 10 together as one unit 2, every two block bodies 10. In addition, between two adjacent units 2, one unit 2 and the other unit 2 are connected together by a second connecting plate 70.

[0015] When the floating structure 100 is installed floating on the water surface 1, the first unit 2a and the fifth unit 2e at both ends in the X direction are connected to and moored by anchor blocks 4 installed on the seabed 6 via connecting ropes 3 such as anchor chains or wires. The mooring method for the floating structure 100 may be a pile mooring method or other methods depending on the installation location of the floating structure 100.

[0016] FIG. 3 is a plan view of two adjacent units 2. FIG. 3 shows a first unit 2a and a second unit 2b, and the road surface body 30 is omitted. For convenience, one of the two adjacent block bodies 10 in each unit 2 will be described as a first block body 10A, and the other of the two adjacent block bodies 10 will be described as a second block body 10B. The first block body 10A and the second block body 10B are lined up in order along the X direction. When there is no need to distinguish between the first block body 10A and the second block body 10B, they will be simply referred to as "block bodies 10."

[0017] The axis 11 of the first block body 10A and the axis 11 of the second block body 10B each extend parallel to the Y direction. The axis 11 of the first block body 10A and the axis 11 of the second block body 10B are aligned parallel to each other in the X direction.

[0018] The first block body 10A and the second block body 10B each have a plurality of small diameter portions 21 and a plurality of large diameter portions 22. The plurality of small diameter portions 21 and the plurality of large diameter portions 22 are alternately arranged along the direction of the axis 11 to form a concave-convex structure 20. The diameter of the small diameter portions 21 is smaller than the diameter of the large diameter portions 22. In this example, the number of small diameter portions 21 and the number of large diameter portions 22 in each block body 10 are six.

[0019] The first block body 10A and the second block body 10B each have a shaft portion 12 that protrudes outward from both ends in the Y direction. The shaft portion 12 extends along an axis 11. The shapes of the first block body 10A and the second block body 10B are inverted shapes of each other in the Y direction. Note that the shapes of the first block body 10A and the second block body 10B are not limited to being inverted, and do not have to be the same shape.

[0020] The concave-convex structure 20 of the first block body 10A and the concave-convex structure 20 of the second block body 10B fit together, and the first block body 10A and the second block body 10B are restricted from moving toward the axis 11. Specifically, the small diameter portion 21 of the first block body 10A fits together with the large diameter portion 22 of the second block body 10B, and the large diameter portion 22 of the first block body 10A fits together with the small diameter portion 21 of the second block body 10B. As a result, the first block body 10A is restricted from moving toward the axis 11 by the second block body 10B, and the second block body 10B is restricted from moving toward the axis 11 by the first block body 10A.

[0021] The relationship between the first block body 10A and the second block body 10B in each unit 2 has been described above, but the same applies to the relationship between the block body 10 adjacent to one unit 2 in one unit 2 and the block body 10 adjacent to one unit 2 in the other unit 2 in adjacent units 2. Specifically, the concave-convex structure 20 of the second block body 10B of the first unit 2a fits into the concave-convex structure 20 of the first block body 10A of the second unit 2b, and the movement of the first block body 10A and the second block body 10B in the direction of the axis 11 is restricted relative to each other.

[0022] Regarding the size of the block body 10, for example, the width in the Y direction of the block body 10 is 10 meters, the diameter of the small diameter portion 21 is 2.8 meters, and the diameter of the large diameter portion 22 is 3.1 meters. The width in the Y direction of the small diameter portion 21 is approximately 1 meter, and the width in the Y direction of the large diameter portion 22 is approximately 1 meter. Note that the width in the Y direction of the small diameter portion 21 and the large diameter portion 22 positioned side by side at one end in the Y direction is less than 1 meter.

[0023] FIG. 4 is a cross-sectional view of the large diameter portion 22 of the block body 10, taken perpendicular to the axis 11. The block body 10 has a cylindrical portion 13, a plurality of ribs 14, and an outer shell 15. The cylindrical portion 13 is made of, for example, concrete. The cylindrical portion 13 may be made of a material other than concrete. The plurality of ribs 14 are embedded in the cylindrical portion 13. The plurality of ribs 14 extend radially from the axis 11. The ribs 14 are unevenly distributed at the lower portion of the cylindrical portion 13. The ribs 14 may be evenly distributed, for example, in the circumferential direction of the cylindrical portion 13, without being unevenly distributed at the lower portion of the cylindrical portion 13. The ribs 14 at the lower portion are, for example, a metal plate. The outer shell 15 covers the outer surface of the cylindrical portion 13. The outer shell 15 is, for example, a metal plate. The cross-sectional structure of the small diameter portion 21 is similar to the cross-sectional structure of the large diameter portion 22.

[0024] 5 is a side view seen from the direction of the arrow A in FIG. 3. As shown in FIG. 3 and FIG. 5, the first connecting plate 60 connects the shafts 12 of the block bodies 10 in each unit 2 so that the distance between the shaft centers 11 of the adjacent block bodies 10 does not change and the block bodies 10 can rotate. Specifically, the first connecting plate 60 connects the shafts 12 of the first block body 10A and the shafts 12 of the second block body 10B so that the distance between the shaft centers 11 of the first block body 10A and the shaft center 11 of the second block body 10B does not change and the first block body 10A and the second block body 10B can rotate on their own axes. Here, "the distance between the shaft centers 11 of the adjacent block bodies 10 does not change" does not only mean that the distance between the shaft centers 11 does not change at all, but also strictly includes a case where the distance between the shaft centers 11 changes slightly due to some play being provided in the first connecting plate 60.

[0025] The first connecting plate 60 connects the first block body 10A and the second block body 10B together so that the first block body 10A and the second block body 10B can swing relative to each other. Specifically, the first block body 10A can swing relative to the second block body 10B about the axis 11 of the second block body 10B, and the second block body 10B can swing relative to the first block body 10A about the axis 11 of the first block body 10A.

[0026] FIG. 6 is an enlarged view of the first connecting plate 60. The first connecting plate 60 is, for example, a metal plate. The first connecting plate 60 has a first end 61 inserted into the shaft portion 12 of the first block body 10A, a second end 62 inserted into the shaft portion 12 of the second block body 10B, and a central portion 63 located between the first end 61 and the second end 62. The first end 61 has a hole 61a into which the shaft portion 12 of the first block body 10A is inserted, and the second end 62 has a hole 62a into which the shaft portion 12 of the second block body 10B is inserted. The first end 61 is connected to the central portion 63 via a hinge 64. The second end 62 is integrally connected to the central portion 63. A locking piece 65 is provided in a portion of the central portion 63 near the hinge 64. When attaching the first connecting plate 60 to the block body 10, a wire is connected to the locking piece 65, and the first connecting plate 60 can be easily lifted by pulling up the wire.

[0027] 7, the first end 61 is configured to be switchable between an unfolded state shown by a solid line and a folded state shown by a two-dot chain line via a hinge 64. That is, the first end 61 is configured to be foldable from a state attached to the shaft portion 12 of the first block body 10A toward the second end 62, away from the shaft portion 12 of the first block body 10A.

[0028] As shown in FIGS. 3 and 5, the second connecting plate 70 connects the shaft portion 12 of the block body 10 at one end side to the shaft portion 12 of the block body 10 at the other end side so that the distance between the shaft center 11 of the block body 10 at one end side adjacent to the one unit 2 in one unit 2 of adjacent units 2 and the shaft center 11 of the second block body 10 at the other end side adjacent to the one unit 2 in the other unit 2 of the adjacent units 2 does not change and so that the one unit 2 and the other unit 2 can swing relatively.

[0029] Specifically, the second connecting plate 70 connects the shaft portion 12 of the second block body 10B of the first unit 2a to the shaft portion 12 of the first block body 10A of the second unit 2b so that the distance between the shaft center 11 of the second block body 10B of the first unit 2a and the shaft center 11 of the first block body 10A of the second unit 2b does not change and the first unit 2a and the second unit 2b can swing relatively. In more detail, the first unit 2a can swing relative to the second unit 2b around the shaft center 11 of the first block body 10A of the second unit 2b, and the second unit 2b can swing relative to the first unit 2a around the shaft center 11 of the second block body 10B of the first unit 2a.

[0030] The second connecting plate 70 has the same configuration as the first connecting plate 60. That is, the second connecting plate 70 is, for example, a metal plate. The second connecting plate 70 has a first end 71 inserted into the shaft portion 12 of the second block body 10B of the first unit 2a, a second end 72 inserted into the shaft portion 12 of the first block body 10A of the second unit 2b, and a central portion 73 located between the first end 71 and the second end 72. The first end 71 has a hole into which the shaft portion 12 of the second block body 10B of the first unit 2a is inserted, and the second end 72 has a hole into which the shaft portion 12 of the first block body 10A of the second unit 2b is inserted. The first end 71 is connected to the central portion 73 via a hinge 74. The second end 72 is integrally connected to the central portion 73. A locking piece 75 is provided in a portion of the central portion 73 near the hinge 74. The first end 71 is configured to be foldable from a state in which it is attached to the shaft portion 12 of the second block body 10B of the first unit 2a toward the second end 72, away from the shaft portion 12 of the second block body 10B of the first unit 2a.

[0031] The second connecting plate 70 is located outboard of the first connecting plate 60 in the direction of the axis 11. A nut 16 is attached to the shaft portion 12 of the block body 10, and the first connecting plate 60 and the second connecting plate 70 are attached to the shaft portion 12. The nut 16 prevents the first connecting plate 60 and the second connecting plate 70 from coming off without tightening the first connecting plate 60 and the second connecting plate 70. A split pin may be inserted into the shaft portion 12 to prevent the nut 16 from coming off the shaft portion 12.

[0032] FIG. 8 is a plan view of two adjacent units 2. FIG. 8 is a view in which a road surface body 30 is added to FIG. 3. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. FIG. 10 is a cross-sectional view taken along line XX in FIG. 8. FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 8. In FIG. 9 and FIG. 10, the cross-section of the block body 10 is drawn in a simplified manner. In FIG. 11, the cross-sections of the block body 10 and the road surface body 30 are drawn in a simplified manner.

[0033] The road surface body 30 fits into the uneven structure 20 of the block body 10, and is restricted from moving in the direction of the axis 11 relative to the block body 10. The road surface body 30 includes a plurality of road surface slabs 40 alternately placed on the small diameter portion 21 and the large diameter portion 22 of the block body 10. In other words, the multiple road surface slabs 40 are arranged along the direction of the axis 11 of the block body 10. The road surface slabs 40 are provided in each unit 2, and are bridged across all of the block bodies 10 in each unit 2.

[0034] Specifically, the multiple road slabs 40 include a first road slab 40A placed on the small diameter portion 21 of the first block body 10A, and a second road slab 40B placed on the large diameter portion 22 of the first block body 10A. The first road slab 40A is provided in each unit 2 and bridges the first block body 10A and the second block body 10B in each unit 2. The second road slab 40B is provided in each unit 2 and bridges the first block body 10A and the second block body 10B in each unit 2. The first road slab 40A and the second road slab 40B extend in the X direction. When the first road slab 40A and the second road slab 40B are not distinguished from each other, they are simply referred to as "road slabs 40".

[0035] Specifically, in the first unit 2a, the first road surface slab 40A is bridged across the small diameter portion 21 of the first block body 10A and the large diameter portion 22 of the second block body 10B, and the second road surface slab 40B is bridged across the large diameter portion 22 of the first block body 10A and the small diameter portion 21 of the second block body 10B. Similarly, in the second unit 2b, the first road surface slab 40A is bridged across the small diameter portion 21 of the first block body 10A and the large diameter portion 22 of the second block body 10B, and the second road surface slab 40B is bridged across the large diameter portion 22 of the first block body 10A and the small diameter portion 21 of the second block body 10B.

[0036] 11 in particular, in the first block body 10A of the first unit 2a, the first road surface slab 40A is sandwiched between two large diameter parts 22 adjacent to each other in the direction of the axis 11 of the first block body 10A relative to the first road surface slab 40A, and movement of the first block body 10A in the direction of the axis 11 of the first block body 10A is restricted. The second road surface slab 40B is sandwiched between two first road surface slabs 40A adjacent to each other in the direction of the axis 11 of the first block body 10A relative to the second road surface slab 40B, and movement of the first block body 10A in the direction of the axis 11 of the first block body 10A is restricted.

[0037] In the second block body 10B of the first unit 2a, the second road surface slab 40B is sandwiched between two large diameter parts 22 adjacent to each other in the direction of the axis 11 of the second block body 10B relative to the second road surface slab 40B, and the movement of the second block body 10B in the direction of the axis 11 is restricted. The first road surface slab 40A is sandwiched between two second road surface slabs 40B adjacent to each other in the direction of the axis 11 of the second block body 10B relative to the first road surface slab 40A, and the movement of the second block body 10B in the direction of the axis 11 is restricted. Note that in the second unit 2b, the positional relationship between the first road surface slab 40A and the second road surface slab 40B and the first block body 10A and the second block body 10B is similar.

[0038] The road surface body 30 has a cross plate 50 that is bridged between one road surface slab 40 provided in one of two adjacent units 2 and the other road surface slab 40 provided in the other of the two adjacent units 2. The cross plate 50 is placed on one road surface slab 40 without being connected to it, and is connected to the other road surface slab 40 so as to be relatively movable.

[0039] Specifically, as shown in Fig. 9, a cross plate 50 is laid across a first road surface slab 40A provided in the first unit 2a and a first road surface slab 40A provided in the second unit 2b. The cross plate is placed without being connected to the first road surface slab 40A provided in the first unit 2a, and is connected to the first road surface slab 40A provided in the second unit 2b so as to be relatively movable.

[0040] 10, a bridge plate 50 is placed between the second road surface slab 40B provided in the first unit 2a and the second road surface slab 40B provided in the second unit 2b. The bridge plate 50 is placed without being connected to the second road surface slab 40B provided in the first unit 2a, and is connected to the second road surface slab 40B provided in the second unit 2b so as to be relatively movable.

[0041] Fig. 12 is a side view of the second road surface slab 40B. Fig. 13 is a plan view of the second road surface slab 40B. Fig. 14 is a cross-sectional view taken along line XIV-XIV of Fig. 13. The second road surface slab 40B has an upper plate 41 and a plurality of ribs 42 attached to the lower surface of the upper plate 41. In this example, the second road surface slab 40B has three ribs 42.

[0042] The upper plate 41 extends in the XY plane. The upper plate 41 extends along the X direction. The ribs 42 extend in the XZ plane. The ribs 42 extend along the X direction. The lower edge of the rib 42 has a recessed portion that follows the peripheral surfaces of the small diameter portion 21 and the large diameter portion 22 of the block body 10. The three ribs 42 are aligned along the Y direction. A stud bolt 43 is attached to the upper surface of the upper plate 41. The configuration of the first road surface slab 40A is the same as the configuration of the second road surface slab 40B.

[0043] Fig. 15 is a side view of the bridge plate 50. Fig. 16 is a plan view of the bridge plate 50. Fig. 17 is a bottom view of the bridge plate 50. Fig. 18 is a cross-sectional view taken along line XVIII-XVIII of Fig. 16. The bridge plate 50 has an upper plate 51, a lower plate 52, and a plurality of ribs 53 sandwiched between the upper plate 51 and the lower plate 52. In this example, the bridge plate 50 has three ribs 53.

[0044] The upper plate 51 spreads in the XY plane. The upper plate 51 extends along the X direction. The ribs 53 spread in the XZ plane. The ribs 53 extend along the X direction. The lower edge of the rib 53 has a recessed portion along the upper surfaces of the two adjacent road slabs 40. The three ribs 53 are lined up along the Y direction. The lower plate 52 extends along the lower edge of the ribs 53. The lower surface of the lower plate 52 has a recessed portion along the upper surfaces of the two adjacent road slabs 40. The lower plate 52 has long holes 52a that penetrate vertically at both ends in the Y direction. The long holes 52a extend in the X direction.

[0045] The stud bolts 43 of the second road slab 40B shown in FIG. 13 are inserted into the long holes 52a, and the stud bolts 43 are movable along the long holes 52a relative to the lower plate 52. Nuts are attached to the stud bolts 43 to prevent them from coming off the stud bolts 43 of the cross plate 50. In this way, the cross plate 50 is connected to the second road slab 40B so as to be movable in the X direction. The relationship between the cross plate 50 and the first road slab 40A is similarly configured, and the cross plate 50 is connected to the first road slab 40A so as to be movable in the X direction.

[0046] Next, there will be described the assembly of the floating structure 100. In particular, the assembly of the first unit 2a and the second unit 2b will be described.

[0047] First, as shown in FIG. 19, on the ground 7, the concave-convex structures 20 of the two block bodies 10 are fitted together, the two block bodies 10 are connected by the first connecting plate 60, and the first unit 2a is assembled, and the road slab 40 is placed on the first unit 2a. Also, the concave-convex structures 20 of the two block bodies 10 are fitted together, the two block bodies 10 are connected by the first connecting plate 60, and the second unit 2b is assembled, and the road slab 40 and the cross plate 50 are placed on the second unit 2b. In the second unit 2b, the second end 72 of the second connecting plate 70 is attached to the shaft portion 12 of one of the block bodies 10. At this time, the first end 71 of the second connecting plate 70 is in a folded state. A wire 8 is connected to the locking piece 75 of the second connecting plate 70, and the wire 8 is wound up by a winding device 9 installed on the cross plate 50, and the first end 71 of the second connecting plate 70 is pulled up.

[0048] Next, as shown in Fig. 20, the first unit 2a and the second unit 2b are floated on the water surface 1, and the second unit 2b is brought close to the first unit 2a. At this time, the uneven structure 20 of the block body 10 of the first unit 2a is fitted into the uneven structure 20 of the block body 10 of the second unit 2b. Also, the cross slab 50 of the second unit 2b is placed on the road slab 40 of the first unit 2a.

[0049] 21, the first end 71 of the folded second connecting plate 70 is unfolded, and the first end 71 is attached to the shaft portion 12 of the block body 10 of the first unit 2a. After that, the wire 8 and the winding device 9 are removed. As a result, the first unit 2a and the second unit 2b are connected by the second connecting plate 70.

[0050] 2, the third unit 2c, the fourth unit 2d, and the fifth unit 2e are assembled and connected to the second unit 2b in order, thereby assembling the floating structure 100 by connecting the five units 2.

[0051] The floating structure 100 may be assembled by other methods. For example, the first unit 2a, the second unit 2b, the third unit 2c, the fourth unit 2d, and the fifth unit 2e may be sequentially connected on the ground, and the first unit 2a, the second unit 2b, the third unit 2c, the fourth unit 2d, and the fifth unit 2e may be sequentially slid on a launching platform (slide) and sent out into the ocean. This allows the five units 2 to be connected on the ground, making it easier to assemble the floating structure 100.

[0052] According to the floating structure 100 described above, among two adjacent block bodies 10, one block body 10 and the other block body 10 are restricted from moving relative to each other in the direction of the axis 11. This makes it possible to prevent the two adjacent block bodies 10 from shifting relative to each other even if a lateral load is applied to the block bodies 10 in the direction of the axis 11. Furthermore, since the relative shift between the two adjacent block bodies 10 can be prevented, the relative shift between the block bodies 10 and the road surface body 30 can also be reduced. This makes it possible to improve the strength of the floating structure 100.

[0053] Specifically, when the floating structure 100 is used in the ocean, the block bodies 10 may be subjected to a lateral load in the direction of the axis 11 of the block bodies 10 due to waves or the like. Even if such a lateral load is received, the relative displacement between adjacent block bodies 10 can be prevented, and further, the relative displacement between the block bodies 10 and the road surface body 30 can be reduced.

[0054] In addition, the road surface body 30 fits into the uneven structure 20 of the block body 10, and is restricted from moving in the direction of the axis 11 relative to the block body 10. This makes it possible to prevent relative displacement between the block body 10 and the road surface body 30, and further improves the strength of the floating body structure 100.

[0055] Moreover, all the block bodies 10 in each unit 2 are connected by the first connecting plate 60. This allows each unit 2 to be moved to the installation site while rolling the block bodies 10 of the units 2. This makes it easier to install the floating structure 100.

[0056] Moreover, of two adjacent units 2, one unit 2 and the other unit 2 are connected to the second connecting plate 70. As a result, as shown in Fig. 22, when the floating structure 100 touches the seabed 6 at low tide, the one unit 2 and the other unit 2 swing relatively to each other, allowing the floating structure 100 to follow the seabed topography.

[0057] In addition, the first end 61 of the first connecting plate 60 is configured to be foldable toward the second end 72 away from the shaft portion 12 of the first block body 10A of the first unit 2a. As a result, when separating the first block body 10A and the second block body 10B of the first unit 2a connected by the first connecting plate 60, the first block body 10A and the second block body 10B can be separated by folding the first end 61 toward the second end 62 and removing it from the shaft portion 12 of the first block body 10A. On the other hand, when connecting the separated first block body 10A and the second block body 10B, the first block body 10A and the second block body 10B can be connected by unfolding the folded first end 61 toward the shaft portion 12 of the first block body 10A and attaching it to the shaft portion 12 of the first block body 10A. In this way, the work of connecting and separating the two block bodies 10 in each unit 2 is facilitated.

[0058] In addition, the first end 71 of the second connecting plate 70 is configured to be foldable toward the second end 72 away from the shaft portion 12 of the second block body 10B of the first unit 2a. As a result, when separating the two units 2 connected by the second connecting plate 70, the two units 2 can be separated by folding the first end 71 toward the second end 72 and removing it from the shaft portion 12 of the second block body 10B of the first unit 2a. On the other hand, when connecting the two separated units 2, the folded first end 71 can be unfolded toward the shaft portion 12 of the second block body 10B of the first unit 2a and attached to the shaft portion 12 of the second block body 10B of the first unit 2a, thereby connecting the two units 2. In this way, the work of connecting and separating the two units 2 is facilitated.

[0059] The road surface body 30 also includes a plurality of road surface slabs 40 alternately placed on the small diameter portion 21 and the large diameter portion 22 of the block body 10. As a result, even if the block body 10 is deflected along the axis 11 of the block body 10, the deflection can be absorbed by the adjacent road surface slabs 40, thereby reducing the deflection of the road surface body 30.

[0060] Furthermore, the first road surface slab 40A is sandwiched between two large diameter portions 22 adjacent to the first road surface slab 40A, and is restricted in its movement toward the axis 11, while the second road surface slab 40B is sandwiched between two first road surface slabs 40A adjacent to the second road surface slab 40B, and is restricted in its movement toward the axis 11. This restricts the movement of the first road surface slab 40A and the second road surface slab 40B toward the axis 11, and can further reduce the deviation of the road surface body 30 relative to the block body 10. Therefore, the strength of the floating body structure 100 can be further improved.

[0061] Further, the road slab 40 is provided in each unit 2 and spans all the block bodies 10 in each unit 2. This allows the road slab 40 to cover the space between adjacent block bodies 10 in each unit 2, making the upper surface of the road body 30 a continuous shape. Furthermore, as shown in Fig. 22, when the floating structure 100 touches down on the seabed 6 at low tide, the road slab 40 of one of the adjacent units 2 and the road slab 40 of the other of the adjacent units 2 move relatively, allowing the road body 30 to follow the seabed topography.

[0062] The cross plate 50 is bridged between one road slab 40 provided in one of two adjacent units 2 and the other road slab 40 provided in the other of the two adjacent units 2. This allows the space between the adjacent road slabs 40 to be covered with the cross plate 50, improving the continuity of the upper surface of the road surface body 30.

[0063] In addition, the cross plate 50 is placed without being connected to one of the road slabs 40, and is connected to the other road slab 40 so as to be relatively movable. This makes it possible to prevent the cross plate 50 from coming off the road slab 40. Even if adjacent units 2 sway relatively, the cross plate 50 can move relatively to the road slab 40, improving the tracking ability of the road surface body 30. In particular, as shown in FIG. 22, when the floating structure 100 lands on the seabed 6 at low tide, even if the road slab 40 of one of the adjacent units 2 and the road slab 40 of the other of the adjacent units 2 move relatively, the cross plate 50 can move relatively to the road slab 40, allowing the road surface body 30 to follow the seabed topography.

[0064] Other Embodiments As described above, the above embodiment has been described as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this, and can be applied to embodiments in which modifications, replacements, additions, omissions, etc. are appropriately performed. In addition, it is also possible to combine the components described in the above embodiment to form a new embodiment. In addition, among the components described in the attached drawings and detailed description, not only components essential for solving the problem but also components that are not essential for solving the problem in order to exemplify the technology may be included. Therefore, the fact that these non-essential components are described in the attached drawings and detailed description should not immediately lead to the determination that these non-essential components are essential.

[0065] In the above embodiment, the floating structure 100 is composed of a plurality of units 2, but may be composed of one unit 2. One unit 2 is composed of two block bodies 10, but may be composed of three or more block bodies 10.

[0066] In the above embodiment, the number of small diameter portions 21 and large diameter portions 22 of each block body 10 may be increased or decreased.

[0067] In the above embodiment, the first connecting plate 60 and the second connecting plate 70 are configured to be foldable, but it is sufficient that at least the second connecting plate 70 of the first connecting plate 60 or the second connecting plate 70 is configured to be foldable. Alternatively, the first connecting plate 60 and the second connecting plate 70 may be configured not to be foldable. Alternatively, at least one of the first connecting plate 60 and the second connecting plate 70 may have a notch cut downward from a hole into which the shaft portion 12 of the block body 10 is inserted, and the connecting plate can be easily attached to the shaft portion 12 by simply dropping the notch of the connecting plate onto the shaft portion 12 from above.

[0068] In the above embodiment, in each unit 2, all the block bodies 10 are connected so as to be rotatable, but all the block bodies 10 may be fixed together so as not to rotate.

[0069] In the above embodiment, the first connecting plate 60 is attached to the shaft portions 12 at both ends in the direction of the axis 11 of the block body 10, but it may be attached to any position, such as the center of the block body 10 in the direction of the axis 11. The same applies to the second connecting plate 70.

[0070] In the above embodiment, the road surface body 30 includes a plurality of separated road surface slabs 40, but may be configured as an integral body. The road surface body 30 is fitted into the uneven structure 20 of each block body 10, but may be fitted into the uneven structure 20 of at least one block body 10.

[0071] In the above embodiment, the road slab 40 is provided for each unit 2, but it may be provided for each of the multiple block bodies 10 in each unit 2.

[0072] In the above embodiment, the road surface body 30 includes a plurality of road surface slabs 40 and cross slabs 50, but the cross slabs 50 may be omitted if adjacent road surface slabs 40 are in contact with each other.

[0073] In the above embodiment, the bridge plate 50 is placed on one of the adjacent road surface plates 40 without being connected to it, and is connected to the other of the adjacent road surface plates 40 so as to be able to move relatively, but the bridge plate 50 may be placed on the other of the adjacent road surface plates 40 without being connected to both road surface plates 40, or may be connected to both road surface plates 40.

[0074] [Aspects] The above-described embodiment is a specific example of the following aspects.

[0075] (Aspect 1) The floating structure 100 comprises a plurality of cylindrical block bodies 10 arranged parallel to each other, and a road surface body 30 placed on the plurality of block bodies 10, and each block body 10 has a plurality of small diameter portions 21 and a plurality of large diameter portions 22 arranged alternately along the direction of the axis 11 to form an uneven structure 20, and between two adjacent block bodies 10, the uneven structure 20 of one block body 10 and the uneven structure 20 of the other block body 10 are fitted together, and the movement of the one block body 10 and the other block body 10 in the direction of the axis 11 is restricted relative to each other.

[0076] According to this configuration, among two adjacent block bodies 10, one block body 10 and the other block body 10 are restricted from moving relative to each other in the direction of the axis 11. As a result, even if a lateral load is applied to the block bodies 10 in the direction of the axis 11, the two adjacent block bodies 10 can be prevented from shifting relative to each other. Furthermore, since the relative shift between the two adjacent block bodies 10 can be prevented, the relative shift between the block bodies 10 and the road surface body 30 can also be reduced. This improves the strength of the floating structure 100.

[0077] (Aspect 2) In the floating structure 100 according to the first aspect, The road surface body 30 is fitted into the uneven structure 20 of the block body 10 and is restricted from moving in the direction of the axis 11 relative to the block body 10 .

[0078] According to this configuration, the road surface body 30 fits into the uneven structure 20 of the block bodies 10, and movement in the direction of the axis 11 relative to the block bodies 10 is restricted. This makes it possible to prevent relative displacement between the block bodies 10 and the road surface body 30, and further improves the strength of the floating body structure 100.

[0079] (Aspect 3) In the floating structure 100 according to the first or second aspect, A first connecting plate 60 is provided to integrally connect the plurality of block bodies 10 into one unit 2, with at least every two block bodies 10. The first connecting plate 60 connects the shaft portions 12 of the block bodies 10 in each unit 2 so that the distance between the shaft centers 11 of the adjacent block bodies 10 does not change and the block bodies 10 are rotatable.

[0080] According to this configuration, all of the block bodies 10 in each unit 2 are connected by the first connecting plate 60. This allows each unit 2 to be moved to the installation site while rolling the block body 10 of each unit 2. This makes it easier to install the floating structure 100.

[0081] (Aspect 4) In the floating structure 100 according to any one of aspects 1 to 3, A second connecting plate 70 is provided which connects one of the plurality of units 2 to the other of two adjacent units 2, and the second connecting plate 70 connects the shaft portion 12 of the block body 10 at one end side to the shaft portion 12 of the block body 10 at the other end side so that the distance between the axis 11 of the block body 10 at one end side adjacent to the one unit 2 in the one unit 2 and the axis center 11 of the block body 10 at the other end side adjacent to the one unit 2 in the other unit 2 does not change and the one unit 2 and the other unit 2 can swing relatively.

[0082] According to this configuration, of two adjacent units 2, one unit 2 and the other unit 2 are connected to the second connecting plate 70. As a result, when the floating structure 100 touches the seabed at low tide, the one unit 2 and the other unit 2 swing relatively to each other, allowing the floating structure 100 to follow the seabed topography.

[0083] (Aspect 5) In the floating structure 100 according to any one of aspects 1 to 4, The second connecting plate 70 has a first end 71 that is inserted into the shaft portion 12 of the block body 10 at the one end side, and a second end 72 that is inserted into the shaft portion 12 of the block body 10 at the other end side, and the first end 71 is configured to be foldable toward the second end 72, away from the shaft portion 12 of the block body 10 at the one end side.

[0084] According to this configuration, the first end 71 is configured to be foldable toward the second end 72 away from the shaft portion 12 of the block body 10 on one end side. As a result, when separating two units 2 connected by the second connecting plate 70, the two units 2 can be separated by folding the first end 71 toward the second end 72 and removing it from the shaft portion 12 of the block body 10 on one end side. On the other hand, when connecting two separated units 2, the folded first end 71 can be unfolded toward the shaft portion 12 of the block body 10 on one end side and attached to the shaft portion 12 of the block body 10 on one end side, thereby connecting the two units 2. In this way, the work of connecting and separating the two units 2 is facilitated.

[0085] (Aspect 6) In the floating structure 100 according to any one of aspects 1 to 5, The road surface body 30 includes a plurality of road surface slabs 40 alternately placed on the small diameter portion 21 and the large diameter portion 22 of the block body 10 .

[0086] According to this configuration, the road surface body 30 includes multiple road surface slabs 40 placed alternately on the small diameter portion 21 and the large diameter portion 22 of the block body 10. As a result, even if the block body 10 is deflected along the axis 11 of the block body 10, the deflection can be absorbed by the adjacent road surface slabs 40, thereby reducing the deflection of the road surface body 30.

[0087] (Aspect 7) In the floating structure 100 according to any one of aspects 1 to 6, The multiple road surface slabs 40 include a first road surface slab 40A placed on the small diameter portion 21 of one of the block bodies 10 and a second road surface slab 40B placed on the large diameter portion 22 of one of the block bodies 10, and the first road surface slab 40A is sandwiched between the two large diameter portions 22 adjacent to the first road surface slab 40A in the direction of the axis 11, thereby restricting its movement in the direction of the axis 11, and the second road surface slab 40B is sandwiched between the two first road surface slabs 40A adjacent to the second road surface slab 40B in the direction of the axis 11, thereby restricting its movement in the direction of the axis 11.

[0088] According to this configuration, the first road surface slab 40A is sandwiched between two large diameter parts 22 adjacent to the first road surface slab 40A and is restricted in its movement toward the axis 11, and the second road surface slab 40B is sandwiched between two first road surface slabs 40A adjacent to the second road surface slab 40B and is restricted in its movement toward the axis 11. This restricts the movement of the first road surface slab 40A and the second road surface slab 40B toward the axis 11, and the deviation of the road surface body 30 relative to the block body 10 can be further reduced. Therefore, the strength of the floating body structure 100 can be further improved.

[0089] (Aspect 8) In the floating structure 100 according to any one of aspects 1 to 7, The system has a plurality of units 2 each formed by integrally connecting at least two of the block bodies 10 together, and the road slab 40 is provided in each unit 2 and spans all of the block bodies 10 in each unit 2.

[0090] According to this configuration, the road slab 40 is provided in each unit 2 and spans all of the block bodies 10 in each unit 2. This allows the road slab 40 to cover the spaces between adjacent block bodies 10 in each unit 2, making it possible to give the upper surface of the road surface body 30 a continuous shape.

[0091] (Aspect 9) In the floating structure 100 according to any one of aspects 1 to 8, The road surface body 30 includes a cross plate 50 that is bridged between one of the road surface slabs 40 provided on one of two adjacent units 2 and the other of the road surface slabs 40 provided on the other of the two adjacent units 2.

[0092] According to this configuration, the cross plate 50 is bridged between one road surface slab 40 and the other road surface slab 40. This allows the space between adjacent road surface slabs 40 to be covered with the cross plate 50, improving the continuity of the upper surface of the road surface body 30.

[0093] (Aspect 10) In the floating structure 100 according to any one of aspects 1 to 9, The bridge slab 50 is placed on one of the road slabs 40 without being connected to it, and is connected to the other road slab 40 so as to be relatively movable.

[0094] According to this configuration, the cross plate 50 is placed without being connected to one of the road slabs 40, and is connected to the other road slab 40 so that it can move relatively. This allows the cross plate 50 to move relatively to the road slab 40 even if the adjacent units 2 sway relatively, improving the tracking ability of the road surface body 30. In addition, the cross plate 50 can be prevented from coming off the road slab 40. [Explanation of symbols]

[0095] 100 Floating Structure 2 units 10 Block Letters 11 axis 12 Shaft 20 Uneven structure 21 Small diameter section 22 Large diameter section 30 Road surface 40 Road version 40A 1st road version 40B 2nd road version 50 Toban 60 1st connection plate 70 Second connection plate 71 First end 72 Second end

Claims

1. The road surface structure includes a plurality of cylindrical block bodies arranged in parallel to one another, and a road surface body placed on the plurality of block bodies, Each block body has a plurality of small diameter portions and a plurality of large diameter portions arranged alternately along the axial direction to form a concave-convex structure, In the two adjacent block bodies, the concave-convex structure of one block body fits into the concave-convex structure of the other block body, so that the movement of the one block body and the other block body in the direction of the axis is restricted relative to each other.

2. In the floating structure according to claim 1, The road surface body is a floating structure in which the road surface body is fitted into the uneven structure of the block body and movement of the road surface body in the direction of the axis is restricted relative to the block body.

3. In the floating structure according to claim 1, a first connecting plate that connects the plurality of block bodies together as one unit, at least every two block bodies; The first connecting plate connects the shaft portions of the block bodies in each unit so that the distance between the axis centers of adjacent block bodies does not change and the block bodies are rotatable.

4. In the floating structure according to claim 3, a second connecting plate that connects one of the units and the other of two adjacent units among the plurality of units; The second connecting plate connects the shaft portion of the block body at one end side to the shaft portion of the block body at the other end side so that the distance between the axis of the block body at one end side of the one unit adjacent to the other unit and the axis of the block body at the other end side of the other unit adjacent to the one unit does not change and the one unit and the other unit can swing relatively.

5. In the floating structure according to claim 4, the second connecting plate has a first end portion inserted into the shaft portion of the block body on the one end side and a second end portion inserted into the shaft portion of the block body on the other end side, The first end portion is configured to be foldable toward the second end portion away from the axis portion of the block body on the one end side.

6. In the floating structure according to claim 2, The road surface body is a floating structure including a plurality of road slabs alternately placed on the small diameter portion and the large diameter portion of the block body.

7. In the floating structure according to claim 6, the plurality of road slabs include a first road slab placed on the small diameter portion of one of the block bodies and a second road slab placed on the large diameter portion of one of the block bodies, The first road surface slab is sandwiched between two of the large diameter portions adjacent to each other in the direction of the axis with respect to the first road surface slab, and movement of the first road surface slab in the direction of the axis is restricted, The second road slab is a floating structure sandwiched between two of the first road slabs adjacent to the second road slab in the direction of the axis, and thus its movement in the direction of the axis is restricted.

8. In the floating structure according to claim 6, The plurality of units are formed by integrally connecting at least two of the plurality of block bodies, The road slab is provided in each unit and is a floating structure that spans all of the block bodies in each unit.

9. In the floating structure according to claim 8, The road surface body is a floating structure having a bridge plate that spans one of the road surface slabs provided in one of two adjacent units and the other of the road surface slabs provided in the other of the two adjacent units.

10. In the floating structure according to claim 9, The bridge slab is placed on one of the road slabs without being connected to it, and is connected to the other road slab so as to be able to move relatively to it.

Images