JP3498113B2 - Artificial submarine facility - Google Patents

Description

Detailed Description of the Invention

[0001]

[0001]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial seabed facility installed in the ocean or the like.

[0003]

[0002]

[0004]

2. Description of the Related Art Currently, aquaculture farms for the purpose of aquaculture are under development.

As aquaculture structures constituting aquaculture farms, floating culture structures and bottom culture structures are known.

The floating aquaculture structure is a floating body whose main body is floated on the sea surface and moored to the sea bottom with a rope or the like, and has a structure in which a culture tank equipped with a ballast capable of pouring and draining is installed in the main body.

In this floating type aquaculture structure, it is possible to float the aquaculture tank from the main body by pouring and draining ballast.
The aquaculture tank can be arranged at a water depth suitable for aquaculture.

Next, in the bottom-mounted aquaculture structure, a base portion is set on the seabed, a pillar is erected on the base portion, and an aquaculture tank that can move vertically is installed along the pillar. It is a structure.

As means for moving the aquaculture tank, a ballast installed in the aquaculture tank capable of pouring and draining and a hydraulic device for winding the aquaculture tank are adopted.

[0010]

[0003]

[0011]

Problems to be Solved by the Invention The above-mentioned aquaculture structures have the following problems, respectively. <a> In the floating aquaculture structure, the main body is floating on the sea surface, so it is easily affected by tidal currents and waves, and it is difficult to install it in a sea area with strong tidal currents and waves.

When installing in such a sea area, it is necessary to take measures against tidal currents and waves.

Further, since it takes time to inject and drain the ballast, it takes a considerable amount of time to float and sink the aquaculture tank. <B> In the bottom-mounted aquaculture structure, it is difficult to install a hydraulic device for hoisting the aquaculture tank in the sea because it is still water-stopping, and it will be installed on the surface of the sea.

Therefore, the hydraulic device extends above the sea surface, and the landscape of the ocean is impaired.

In addition, when the aquaculture tank is floated and settled by the ballast, it takes a long time for pouring and draining the ballast, so that a considerable amount of time is required for the work of the aquaculture tank. <C> Large-scale fishing grounds are required for coastal aquaculture.

On the other hand, the destruction of marine ecosystems due to red tides, sea shore burning, etc. is progressing, and it is desired to develop good environmental protection facilities in coastal waters in order to protect the natural environment.

[0017]

[0004]

[0018]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to enable the development of a large-scale coastal fishing ground and to perform floating and sinking of aquaculture tanks in a short time. , To provide artificial seabed facilities that do not damage the ocean landscape.

[0019]

[0005]

[0020]

[Means for Solving the Problems] That is, the present invention comprises a cylinder which is erected on the seabed and is expandable and contractable by pouring and draining seawater, and a moving object installed at one end of the cylinder. It is an artificial seabed facility in which the object to be moved can be moved by injecting and draining.

Further, the present invention comprises a cylinder which is erected on the seabed and can expand and contract by pouring and draining seawater, and an artificial seabed plate which is installed substantially horizontally on the upper end of the cylinder, and pours seawater into and out of the cylinder. It is an artificial seabed facility that allows the artificial seabed slab to float and sink.

Further, the present invention is the artificial seabed facility, characterized in that in the artificial seabed facility described above, the water is poured into and drained from the cylinder by a pump.

Further, the present invention is the artificial seabed facility, wherein the artificial seabed facility is equipped with a marine product facility.

Further, the present invention is an artificial seabed facility in which a plurality of the artificial seabed facilities described above are installed at a predetermined distance and mooring the marine product facility between the artificial seabed slabs in the adjacent artificial seabed facilities.

[0025]

[0006]

[0026]

[Embodiment 1] An embodiment of an artificial seabed facility will be described below with reference to the drawings.

[0027]

<B> Structure of artificial seabed facility FIG. 1 shows a perspective view of the artificial seabed facility 10.

The artificial seabed facility 10 is composed of a cylinder 12, an artificial seabed slab 13 and a support portion 14.

Each part will be described in detail below.

[0030]

<B> Cylinder (FIG. 1, FIG. 2, FIG. 3) The cylinder 12 is a moving means for moving the artificial seabed slab 13 up and down. For example, the cylinder 12 is erected on the foundation 11 made of a concrete structure. It is installed in the sea.

Therefore, unlike the conventional aquaculture structure, the moving means does not project from the sea, so that the landscape of the installed sea area is not damaged.

The cylinder 12 is constructed by inserting an inner tube 122 into a cylindrical outer tube 121.

For example, one end of the outer pipe 121 is fixedly provided on the upper surface of the base portion 11 to stand upright, and the inner pipe 122 is slidably inserted into the opening end above the outer pipe 121.

The sliding force of the inner pipe 122 is applied by pouring seawater into the outer pipe 121 and discharging it.

The pouring / draining in the outer pipe 121 is performed by the outer pipe 121.
It is sufficient to open the pouring / exhausting port 123 on the peripheral surface, connect the water supply hose 125 to the pouring / exhausting port 123, connect the other end to the pump 21, and drive the pump 21.

As the pump 21, a known pump capable of pumping and sucking seawater can be adopted, and is mounted on the hull 20 on the sea as shown in FIG.

As the pouring / draining means, other known means may be used, or the pouring / draining means may be installed in other places such as the support portion 14.

[0038]

Further, a water blocking material made of a rubber material or the like is installed in a sliding portion between the inner circumference of the outer pipe 121 and the outer circumference of the inner pipe 122 to prevent leakage of seawater and reduce the sliding force of the inner pipe 122. Try not to.

However, even if seawater leaks from the sliding portion, it does not pollute the installed sea area.

The cross-sectional shapes of the outer tube 121 and the inner tube 122 are not limited to the circular shape shown in FIG. 1, but may be other shapes such as a quadrangle.

Further, the number of cylinders 12 to be installed may be plural.

[0042]

As shown in FIG. 3, the water level changes on the sea surface due to high and low tides.

In consideration of this, it is important to set the expansion / contraction amount of the inner pipe 122.

That is, the artificial seabed slab 13 that sinks at low tide is positioned at a predetermined depth, and the artificial seabed slab 13 that floats at high tide rises to the sea surface.

[0045]

The foundation portion 11 is a member having a required weight and is laid on the seabed. When laying the foundation portion 11, a rubble stone 111 is laid on the seabed in advance and the rubble stone 111 is laid. Then, it is preferable to install the covering block 112 around the base portion 11 to prevent scour after landing.

Although not shown, a plurality of blocks and the like may be stacked and installed on the foundation 11 to function as a fishing reef.

[0047]

<C> Artificial seabed slab (FIG. 1) An artificial seabed slab 13 is placed substantially horizontally on the upper end of the inner pipe 122.
Set up.

The artificial seabed slab 13 is for forming an aquaculture seabed of an optimum depth in a sea area where the water depth is too deep for aquaculture of seaweed, fish, etc., and moves vertically as the inner pipe 122 slides. You can do it.

Various fisheries facilities can be added to the artificial seabed slab 13.

For example, the upper surface of the artificial seabed slab 13 is cultivated such as seaweed and seafood, and fish cages are cultivated by attaching or mooring cages 131 and aquaculture tanks on the sides thereof.

[0051]

<D> Support Part (FIGS. 1, 2, and 3) The support part 14 is a part that supports the inner pipe 122 and the artificial seabed slab 13 that move up and down.

As the supporting portion 14, for example, as shown in FIG. 1 or 2, a plurality of columns 141 are provided on the foundation portion 11.
And the beam member 142 is installed between them.
2, a rod 143 is attached in combination in the direction of the inner pipe 122, and a plurality of rollers 144 are attached to the rod 143 to radially abut the outer periphery of the inner pipe 122.

If a large number of beam members 142 are attached, the supporting portion 1
4 itself functions as a fishing reef.

The inner tube 122 is supported by the roller 144.
The vertical movement of is smooth.

The rollers 144 are preferably installed in two or more stages above and below, as shown in FIG. 1 or 3.

On the other hand, a protrusion 132 is provided in the horizontal direction from the side of the artificial seabed slab 13 and is hooked on the column 141.
Keep the artificial seabed plate 13 from rotating around the inner pipe 122.

..

The structural form of the support portion 14 is not limited to that shown in FIG. 1, but may be any other form as long as it can support the inner pipe 122 and the artificial seabed slab 13. May be.

[0058]

[0015]

[0059]

Next, a method of using the artificial seabed facility 10 will be described.

[0060]

<A> Floating of artificial seabed slab (FIGS. 1 and 2) The seeding work and the maintenance of the artificial seabed slab 13 are carried out by floating the artificial seabed slab 13 to the vicinity of the sea surface.

To raise the artificial seabed slab 13, first, the hull 20 is moved to a position where the water supply hose 125 is installed and connected to the pump 21 having the end of the water supply hose 125 mounted.

Next, the pump 21 is driven to drive the water supply hose 12
Pump seawater into 5.

Then, the seawater passes through the water supply hose 125,
Water is poured into the outer pipe 121.

Due to the injection of seawater, the water pressure in the outer pipe 121 rises and buoyancy is applied to the inner pipe 122.

Therefore, the inner pipe 122 floats upward, and the artificial seabed slab 13 also floats upward.

As described above, the floating of the artificial seabed slab 13 is not carried out by the buoyant force of the air which drains the inside of the ballast as in the conventional case, but is the method of directly pushing up by the water pressure.
It can be done in a short time.

Further, since the artificial seabed slab 13 is floated using seawater, even if a large amount of seawater in the outer pipe 121 leaks due to an accident or the like, the surrounding sea area will not be polluted.

[0068]

When the artificial seabed slab 13 rises to a predetermined position, the pump 21 is stopped.

Then, seaweed is seeded on the artificial seabed slab 13 to release juveniles, and juveniles are released to the cage 131 to perform seeding work.

[0070]

<B> Settling of artificial seabed slab After the seeding work is completed, the artificial seabed slab 13 is settled to a predetermined depth in order to create an environment suitable for aquaculture.

For the sedimentation, if the end of the water supply hose 125 on the pump 21 side is opened, the seawater in the outer pipe 121 flows out through the opening, and the artificial seabed plate 13
And it is automatically performed by the own weight of the inner pipe 122.

If it is desired to shorten the sedimentation time, the water supply hose 125 may not be opened from the pump 21, but the pump 21 may be reversely driven to forcibly drain the seawater in the outer pipe 121.

[0073]

[0019]

[0074]

Example 2 A large-scale artificial seafloor facility is constructed by installing a plurality of the artificial seafloor facilities 10 at a predetermined distance, and constructing a marine product facility such as a culture tank 30 between the artificial seabed plates 13 in the adjacent artificial seafloor facilities 10. It may be 40.

For example, as shown in FIG. 4, in the artificial seabed facility 40, a plurality of artificial seabed facilities 10 are arranged at a predetermined distance in a grid pattern and the cages 13 in the adjacent artificial seabed facilities 10 are arranged.
An aquaculture tank 30 for cages and the like is moored during one period.

When the aquaculture tank 30 is installed between the adjacent artificial seabed facilities 10 as described above, one artificial seabed facility 10 can float and sink the cage twice as large as in the case where the artificial seabed facility 10 is installed alone. Therefore, it is possible to form a large-scale artificial seabed and efficiently culture aquaculture.

[0077]

[0020]

[0078]

Third Embodiment The object to be moved by the cylinder 12 is not limited to the artificial seabed slab 13.

That is, it may be an artificial seafloor facility in which a facility installed in the sea or on the sea is attached to one end of the cylinder 12 and is made movable by pouring and draining water into the cylinder 12.

[0080]

[0021]

[0081]

Since the present invention is as described above, the following effects can be obtained.

[0082]

<B> Since the movement of the moving object such as the artificial seabed is performed by expanding and contracting the cylinder by pouring and draining seawater, it is performed in a shorter time than the conventional drainage in the ballast. be able to. <B> Since the cylinder for floating and sinking the artificial submarine slab is arranged in the sea, it does not spoil the scenery around the installed sea area. <C> Since the driving force of the artificial submarine slab is driven by seawater, there is no concern about environmental pollution even if the seawater leaks. <D> A large-scale seabed for aquaculture can be formed by installing a plurality of artificial seabed facilities and mooring aquaculture tanks between the artificial seabed plates. <E> Since the cylinder that moves the artificial seabed slab has a simple structure, the entire artificial seabed facility can be manufactured at low cost.

[Brief description of drawings]

[Figure 1] Perspective view of artificial seabed facility

FIG. 2 is a side sectional view of the cylinder.

[Figure 3] Schematic of artificial seabed facility

FIG. 4 is a plan view of the artificial seabed facility in the second embodiment.

─────────────────────────────────────────────────── ─── Continuation of the front page (73) Patent holder 592180225 Narasaki Manufacturing Co., Ltd. 385 Sakimori-cho, Muroran-shi, Hokkaido (73) Patent holder 000150280 Nakayama Steel Works Ltd. 1-16-1 Funamachi, Taisho-ku, Osaka-shi, Osaka (74) The above three agents 100099450 Attorney Yuichi Kasai (1 outside) (72) Inventor Yukio Oami 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Construction Co., Ltd. (72) Inventor Masaya Kato 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Construction Co., Ltd. (72) Inventor Yuichi Chiba 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Construction Co., Ltd. (72) Mitsuru Nakamura Obama City, Fukui Prefecture 1-1 Gakuencho Fukui Prefectural University Gaku Obama Campus (72) Inventor Kan Morikawa 2-6-4 Uchikanda, Chiyoda-ku, Tokyo Marino Forum Twenty-one Unit (56) References JP-A-59-177413 (JP, A) JP-A-3-212569 (JP, A) JP-A-7-247539 (JP, A) JP-A-60-196133 (JP, A) -176124 (JP, U) Actual development Sho 58-113357 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01K 63/00 A01K 61/00 321 A01K 75/00 A01G 33 / 00 E02D 29/09 F02B

Claims (5)

(57) [Claims] 1. A cylinder, which is erected on the bottom of the sea and can expand and contract by pouring and draining seawater, and an object to be moved, which is installed at one end of the cylinder. The object to be moved by pouring and draining seawater into the cylinder. An artificial seabed facility that can be moved. 2. An artificial seabed slab installed upright on the bottom of the sea and capable of expanding and contracting by pouring and draining seawater, and an artificial seabed plate installed substantially horizontally at the upper end of the cylinder. An artificial seafloor facility that allows the submarine slab to float. 3. The artificial seabed facility according to claim 1 or 2, wherein water is poured into and drained from the cylinder by a pump. 4. The artificial seabed facility according to claim 2 or 3, wherein a fisheries facility is attached to the artificial seabed slab. 5. An artificial seabed in which a plurality of artificial seabed facilities according to any one of claims 1 to 4 are installed at a predetermined distance and moored fisheries facilities are installed between artificial seabed slabs in adjacent artificial seabed facilities. Facility.