JPH02158491A - Underwater floating structure - Google Patents

Abstract

PURPOSE:To make a shelf serviceable to growth and breeding of underwater vegetable and to enable gathering of underwater vegetable and to enable gathering of fishery products by a method wherein a shelf is hung down in water to form an artificial sea bottom, and a pontoon is floated in a position near the artificial sea bottom. CONSTITUTION:A shelf 1 is suspended in water for support in a state to be coupled to the lower end parts of cables 4, e.g. a wire, a chain, hung down from buoys 3 floating on a sea surface. Diffusing pipes 5 are mounted to the shelf 1, where occasion demands, to deaerate sea water and an underwater projector 6 is installed to project light in water. Or by pumping up sea water in deep having abundant dissolved oxygen onto the shelf 1 with the aid of a pump, a condition useful to growing and breeding of underwater vegetable and fishery products is created, and the shelf is functioned as a artificial seat bottom. A half-diving type pontoon 2 a part of which is protruded from a sea surface and which can be utilized for various facilities is floated in a position near the artificial sea bottom, and is moored to an anchor 8, seated on a sea bottom B, through a cable body 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an underwater floating structure used as an artificial fishing ground or a floating facility for sightseeing or leisure.

[Conventional technology]

Conventionally, it has been known to sink concrete blocks or steel frames into the ocean floor or other water bodies and use them as artificial fish reefs, or to install large floating structures on the ocean and use them for floating facilities such as offshore hotels.

[Problem to be solved by the invention]

However, it is not a good idea to build conventional artificial reefs in relatively deep waters or in areas with poor seabed conditions, considering the cost of transporting concrete blocks and steel frames, and even if artificial reefs were built, they would not be suitable for tourism. The problem was that it was difficult to use as a fishing ground or leisure facility. In addition, there is a problem in that large floating structures used in offshore facilities and the like are not usable by themselves as leisure facilities for scuba diving and the like.

The present invention has been made in view of the above problems, and involves creating an artificial underwater bottom that can be used as a growing place for underwater plants such as seaweed or as a fish reef at a desired depth underwater, and By installing a pontoon that can be used as a resting place or activity station, the underwater floating structure can be used as a full-fledged artificial fishing ground, tourist fishing ground, or even as a leisure facility for scuba diving, underwater observation, etc. The purpose is to provide the body.

[Means to solve the problem]

The underwater floating structure of the present invention has a fence suspended in water to form an artificial water bottom, and a pontoon floated near the artificial water bottom.

[For production]

According to the underwater floating structure of the present invention, the shelf suspended in the water helps the growth and reproduction of underwater plants, and moreover, the shelf serves as a fish reef, and furthermore, the underwater plants grown on the shelf serve to attract fish and shellfish. . The pontoons will also serve as fishing boat launches, fishing spots, underwater observation facilities, tourist rest areas, floating restaurants, and activity stations. Particularly in the case of floating restaurants, fresh seafood is delivered to the table immediately from the artificial fish tanks described later.

〔Example〕

FIG. 1 is a schematic configuration diagram of an underwater floating structure installed on the sea according to an embodiment of the present invention, where 1 is a shelf and 2 is a pontoon.

The shelf 1 is connected to a cable 4, such as a wire or chain, suspended from a buoy 3 floating on the sea surface, and is supported at multiple points by the buoyancy of the buoy 3.

Shelf 1 is used as an artificial underwater bottom.
The water depth is determined by the length of the cable 4, and by adjusting the length of the cable 4, the water depth to the shelf 1 can be arbitrarily determined. Therefore, the water depth to seabed B is 2
It is about 0 to 50m, making it difficult for sunlight to reach the seabed B.
Even in places with poor seabed conditions where it is difficult for underwater plants such as seaweed or aquatic organisms such as fish and shellfish to grow, we create an artificial seabed at an appropriate depth that allows sunlight to reach it, for example, within 10 meters. It becomes possible to encourage the growth and reproduction of underwater plants such as seaweed. Fish, turban shells, abalone, and other seafood have become abundantly distributed on the artificial seabed built at shallow depths.Additionally, as underwater plants grow on the artificial seabed, fish and other fish seek out the underwater plants. of aquatic life, and the distribution of fish and shellfish becomes even more abundant. In addition, an aeration pipe 5 can be installed on the shelf 1 to aerate the seawater, an underwater floodlight 6 can be installed to project light into the water, or a pump can be used to collect dissolved oxygen-rich seawater in deep water. It is also possible to create favorable conditions for the growth and reproduction of underwater plants and fish and shellfish, and to enhance the effect of attracting fish by raising the fish to the top of the shelf 1 and feeding or spreading bait. Furthermore, as shown by the imaginary lines in Figures 1 and 2, a vertical structure 7 is installed or suspended on the shelf 1, so that aquatic life such as fish attracted to the artificial seabed can be transported to the open ocean. It is also possible to prevent them from escaping, or it is possible to create a fish cage using the shelves 1 and the vertical structures 7, and to make aquatic creatures such as fish swim or cultivate in the fish cage. Although FIG. 2 shows a part of the vertical assembly 7 with an open lower a formed therein, the lower a may not be provided in this case.
Of course, when the opening lower door a is provided, an opening/closing door may be provided there.

For the shelf 1, in addition to perforated materials such as wire mesh or synthetic resin net, it is possible to use known materials such as plate-shaped non-porous materials, and even materials imitating rocks to form a pseudo seabed. However, it is advantageous to use a perforated material to suppress the influence of ocean conditions such as the rise and fall of seawater and the tide level. Further, the shape of the shelf 1 may be a perfect circle, an oval, a polygon, or a special shape such as a cocoon shape.

The pontoon 2 is a semi-submersible type in which a part protrudes above the sea surface and the rest is submerged in the sea, and the pontoon 2 is a semi-submersible type in which a part of the pontoon 2 protrudes above the sea surface and the rest is submerged in the sea. It is moored via cables 9 near the artificial seabed formed by the shelf 1. In addition, the cord body 9
The shelf 1 is connected to the shelf 1 to prevent the shelf 1 from being washed away by the current.

Pontoon 2 is used as a fishing boat launching pad, fishing spot, underwater observation facility, tourist rest area, activity station, etc. Even if only one Pontoon 2 is installed, two or more pontoons can be installed. 2... may be installed. Also,
Depending on the case, a wind turbine 10 may be installed to generate wind power, and the electric power may be used for the above-mentioned aeration and lighting purposes. It goes without saying that commercial electric power can be used as electric power for aeration and lighting.

As described above, by suspending the shelf 1 underwater to create an artificial seabed rich in underwater plants and creatures, and installing one or more pontoons 2 in combination near the artificial seabed, the whole Depending on the size of the current model, Pontoon 2 can be used as an activity base and the location where the shelves are installed can be used as a full-fledged artificial fishing ground, or Pontoon 2 can be used as an underwater facility for sightseeing or leisure purposes, such as a landing place for fishing boats. It can be used as a fishing spot, underwater observation facility, tourist rest area, floating restaurant, activity station, etc. In addition, the above shelf 1 and pontoon 2
Compared to conventional concrete blocks, steel frames, and large floating structures, it is easier and cheaper to tow to the installation site, install and remove at the installation site, and it is also less expensive to use at sea during towing, installation, and removal. It is something that does not become dirty.

FIG. 3 shows an example of the internal structure of the pontoon 2. The inside of the outer wall 11, which is cylindrical or polygonal, is divided into three sections, upper and lower, by floorboards 12 and 13, with the upper room 14 serving as a living room with a sofa 15, storage space 16, etc., and the middle room 17 serving as a living room. It is said to be a bedroom with bed 18 etc.
The lower chamber 19 is used as a ballast chamber. And upper chamber 14
A window 20 is installed in the middle room 1 so that the sea surface can be seen.
A vague window 21 is provided in the lower chamber 19 so that the growth of underwater plants and aquatic organisms can be seen in the water or on the artificial seabed, and a concrete ballast 22 and a ballast water tank 23 are provided in the lower chamber 19. Pontoon 2 at the lower end of the lower chamber 19
A projecting plate 24 that also serves as a stabilizer is provided to prevent the swinging of the projector, and a projector 25 is installed on the projecting plate 24. Furthermore, a window X for observing the ocean floor is provided in the center of the overhanging plate 24. on the other hand,
A deck 26 is provided at the upper end of the outer wall 1, a handrail 27 and a tent 28 are installed on this deck 26, and a corridor 29 is formed around the tent 28 so that you can enjoy fishing and look around. The interior is a space for viewing or resting. Furthermore, as shown in FIGS. 3 and 4, the deck 26
Access stairs 30 are provided at multiple locations, and by providing a float tank 31 at the end of the access stairs 30, the access stairs 30 can be used as a landing place for fishing boats and pleasure boats. Changes in the center of gravity (occurring due to movement of people within the pontoon 2, etc.)

) This prevents pontoon 2 from shaking due to In addition, 32
3 is a cover for wave return, 33 is a tank, and 34 is an air conditioning equipment.

FIG. 5 shows another example of the pontoon 2.

In the figure, 35 is a ventilation pipe, 36 is a vent, 37 is a window, and 38 is an anchor seat. Others, Figures 3 and 4
Elements corresponding to those provided in the pontoon 2 in the figure are given the same reference numerals, but the pontoon 2 used in the underwater floating structure of the present invention may have a configuration other than that shown in the figure. Further, the present invention is not limited to underwater floating structures installed in the sea as in the embodiments, but can be similarly applied to underwater floating structures installed in lakes, rivers, ponds, dams, lakes, etc.

〔Effect of the invention〕

As described above, the underwater floating structure of the present invention is constituted by a combination of an artificial water bottom formed by a shelf suspended in the water and a pontoon floated near the bottom.
The artificial underwater bottom helps underwater plants grow and reproduce, and the shelf serves as a fish reef, and the underwater plants that grow on the shelf are useful for attracting fish and shellfish, while the pontoon serves as a landing pad for fishing boats, a fishing spot, and underwater observation. Depending on the size of the above shelf, the hanging area can be used as a full-fledged artificial fishing ground.
In addition, the pontoon can be effectively used as an underwater facility for sightseeing and leisure purposes as an activity station. In particular, since the above-mentioned shelf is suspended underwater, it is possible to create an artificial underwater bottom at a desired depth to encourage the growth and reproduction of underwater plants, even in deep water areas or areas with poor seabed conditions. This has the advantage that the artificial underwater bottom can be used as a fish reef. In addition, shelves and pontoons are easier and less expensive to tow to the installation site, install and remove at the installation site than traditional concrete blocks, steel frames, and large floating structures; It has the advantage of not polluting the ocean.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of a floating structure in water according to an embodiment of the present invention, Fig. 2 is a schematic plan view of a shelf, Fig. 3 is a sectional view of a pontoon, Fig. 4 is a plan view of the pontoon, and Fig. 5 is a sectional view showing another example of a pontoon. 1...shelf, 2...pontoon

Claims (1)

[Claims] 1. An underwater floating structure made by suspending a shelf underwater to create an artificial water bottom and floating a pontoon near the artificial water bottom.