JPS5837249Y2 - artificial reef - Google Patents

Description

[Detailed explanation of the invention] It is well known that the need for urgent cultivation areas is increasing due to issues such as economic zones, but this invention relates to artificial fish reefs used for creating urgent cultivation areas in coastal waters, etc. It is something.

Various types of artificial fish reefs have been proposed in the past for the purpose of sinking them into the ocean floor to provide a habitat suitable for fish to live in and encourage fish to breed. It also has excellent corrosion resistance after installation.
It is seen as a promising artificial fish reef for the future, but most conventional concrete artificial fish reefs of this type are small, and making them larger would be cumbersome to manufacture and would also pose problems in terms of strength. There were some inconveniences.

Therefore, this invention is an artificial fish reef made of concrete, which is easy to manufacture, can be easily made into any size according to the needs of each case, and has almost no strength in terms of strength even when it is large. The aim is to provide a new artificial reef that does not cause any inconvenience.

To explain the configuration of the artificial fish reef according to this invention with regard to the illustrated embodiment, the artificial fish reef FD according to this invention shown in FIG. The unit plates 1A, IB, and IC, which form the structural unit of this artificial reef FD, have the following structure. .

That is, as shown in FIG. 2, each unit plate IA, IB
, the IC has a through hole in the inside surrounded by the rectangular outer circumferential portion 2, and has a flat plate shape with a through hole as described above, and the four corners of the outer circumferential portion 2 are long. Plum joint part 3
A reinforcing portion 4 is provided between the two connecting portions 3 that are located opposite each other, and the reinforcing portion 4, which is integral with the outer circumferential portion 2, forms four approximately triangular shapes together with the outer circumferential portion 2. It is being done as it should be done.

The dimensions of the three unit plates IA, IB, and IC are slightly different, as shown in FIG.

Considering the Y and Z axes, the unit plate 1A is arranged in the XZ plane and the YZ plane, and the unit plate 1B and the unit plate 1C are arranged in the XY plane.
In this way, the connecting portions 3 of each unit plate 1 are arranged in three types of planes orthogonal to each other, and the connecting portions 3 of adjacent unit plates 1 are connected to each other.
When the above-mentioned arrangement is adopted by abutting against each other, the three-dimensional structure shown in FIG. 1 is completed.

To explain in more detail, the outer circumferential portion 2 of each unit plate 1 is sized to have a square cross-sectional shape with side length d, but the width and length of each unit plate are 12113 (t2=t3 in the case shown), whereas unit plate 1B and unit plate 1C
Similarly, the width (inside the X-axis) is 4, and the unit plate 1B
and the vertical width (Y-axis internal) of the unit plate 1C is 4-d for the former 1B and 43-2d for the latter 1C,
In addition, while all other connecting parts 3 are provided at the center in the width direction, only the connecting part 3 in the vertical width direction (Y-axis direction) of the unit plate 1B is slightly shifted from the center in the vertical width direction. The unit plates 1A are arranged in the YZ plane at intervals of 4 along the X-axis direction, and at intervals of 4 along the Y-axis direction.
One unit board is arranged in the XZ plane with alternating intervals of -d and /, -2d, and along the Z-axis direction, there is an interval of t.
The unit plates 1B and 1C are arranged in the XY plane with 2-2d placed, and the unit plates 1B and 1C are arranged alternately along the Y-axis direction, and in this arrangement state, they are adjacent to each other. The connecting portions 3 of the unit plates 1 are abutted against each other, and the unit plates IA, IB, and IC The shape and dimensions are set.

Note that reinforcing reinforcing bars (not shown) are embedded in the outer peripheral portion 2 and reinforcing portion 4 of the concrete unit plate 1.

The unit plate 1 that is three-dimensionally assembled as described above is
They are connected by the following means.

That is, as shown in FIGS. 6 and 7.8, each connecting portion 3 in each unit plate 1 is provided with a steel pipe 5 having a square flange 5a at one end on both sides of the reinforcing portion 4, passing through the connecting portion 3. The connecting parts 3 of two adjacent units 1 are brought into contact with each other with an adhesive 6 such as asphalt having a thickness of 3rl1m interposed between them, and then the steel pipes 5 of both connecting parts 3 are connected again. The above-described connection is achieved by inserting a bolt 9 through the washers 7 and 8 on both sides, and screwing a nut 10 onto the end of the bolt 9.

In addition, the unit plate 1 is formed with a recess 11 at each connecting portion 3 so that the nine bolts and the nut 10 can be exposed inside, and a waterproofing agent is mixed into the recess 11 after the above-mentioned connection. A filler such as mortar or epoxy resin is filled to cover the nine bolt heads and the nut 10 to prevent metal fittings such as the bolts 9 and nuts 10 from being corroded by seawater.

As mentioned above, each unit board IA, IB mentioned above
, the IC may have a shape in which one of the reinforcing portions 4 is removed and the one reinforcing portion 4 and the outer peripheral portion 2 form two approximately triangular shapes, as shown in FIG. , and of course,
The unit plates IA, IB, IC shown in FIG. 2 and the unit plates IA, IB, IC shown in FIG. 9 may be used in combination.

The artificial reef FD according to this invention, which is constructed as described above, is made of concrete unit plates IA, IB, which are in the form of a hollow flat plate and have an integral reinforcing portion 4 inside.
Since it is composed of a combination of ICs, the unit board 1
This can be mass-produced and prefabricated in a factory using formwork, and this unit plate 1 can be transported to the vicinity of the fish reef installation site, assembled there, and then installed. 1 is lightweight and easy to handle, and since it can be stacked in a flat plate shape, it is also easy to transport.

Since this artificial reef is constructed by combining the unit plates IA, IB, and IC in the arrangement described above, its size can be expanded arbitrarily along any three-dimensional direction according to each request. Moreover, even if the size is increased in this way, each unit plate 1 itself has a truss structure with the outer peripheral part 2 and the reinforcing part 4, and as is clear from FIGS. 1 and 35, the adjacent unit plates 1, a truss structure is formed at the outer peripheral portion 4 of the adjacent unit plate 1,
Dogs have the strength to resist external forces and rarely cause any inconvenience.

Also, a bolt 9 inserted into the embedded steel pipe 5 and the bolt 9
Two adjacent unit plates 1 are connected by a connecting tool consisting of a nut 10 screwed into the unit plate 1, and a recess formed in the unit plate 1 so that the 9° 10 end of the connecting tool can be exposed. 11 is covered with a filling such as mortar, so there are no metal fittings exposed to the outside, and there is no problem such as corrosion of metal fittings due to seawater. Combined with the fact that it does not, it has become a highly durable artificial reef.

Filling with mortar or the like using the recess 11 is of course easy, and the ends of the connectors 9 and 10 are completely covered.

There is a large space inside surrounded by the combined flat unit plates 1, and each unit plate 1
Since the space is hollow, there is a large communication between the spaces and between the space and the outside,
Conditions suitable for fish to live inside are created while receiving necessary nutrients and oxygen.

Furthermore, since this artificial reef has a vast ground plane formed by a group of unit plates arranged within the end surface on either end surface, it can be stably installed no matter which direction it is placed on the seabed. It is something.

As described above, this invention is easy to manufacture, can be expanded in any direction as required and made larger without any problems, can be stably installed on the seabed, and is suitable for fish habitat. This provides a new artificial reef that creates a suitable environment for fish.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an embodiment of this invention, Figure 2 a y
b p e is a plan view of the unit plate in the same embodiment, FIG. 3 is a front view of the same embodiment, FIG. 4 is a side view of the same embodiment, FIG. 5 is a plan view of the same embodiment, and FIG. 6, 7, and 8 are sectional views of essential parts of the same embodiment, and FIGS. 9a, b, and c are plan views of a unit plate in a modified example, respectively. FD...Artificial reef, IA, IB, IC...
...Unit plate, 2...Outer peripheral part, 3...
... Connecting part, 4... Reinforcement part, 5...
Steel pipe, 9...-bolt, 10...nut.

Claims (1)

[Scope of utility model registration request] This is a square concrete unit plate with a hollow plate shape, and a reinforcement part that forms a substantially triangular shape together with its outer peripheral part is integrally formed inside.A large number of unit plates are three-dimensionally assembled and interconnected. It is an artificial reef constructed by
The above unit plates are arranged in three mutually orthogonal planes, and each unit plate is brought into contact with the adjacent unit plate at a connecting part formed on the outer periphery of each unit plate, and at this connecting part are connected to each other by a connecting device consisting of a bolt inserted across the embedded steel pipe through the connecting part and a nut screwed onto the bolt,
An artificial reef in which both ends of the connector are covered with a filler such as mortar that is filled into a recess formed in the unit plate so that the ends of the connector can be exposed to the inside.