JP2001008563A - Floating mass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floating mass invariant in shape, namely prevented from getting out of shape, and settable in a stable condition for a long period. SOLUTION: This floating mass is such that a vegetational material is packed inside a body block having a cylindrical circumferential wall made of a rigid material and embedded with a buoyancy body inside and a net set up at the bottom of the wall. Thus, because the circumferential wall is made of a rigid material, this floating mass is invariant in shape even after the lapse of a long time; because of imbedding a buoyancy body inside the circumferential wall, it is not exposed outside, therefore this floating mass substantially affords a natural landscape and does not become unsightly; because the bottom of this floating mass represents a net, the plant grows well and absorbs nutriments in water, effecting promotion of water decontamination; furthermore, when the waves are high, the net on the underside absorbs the waves from below, therefore this floating mass is slight in shake, less prone to be affected by the waves.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial floating island floating on the surface of water such as a lake.

[0002]

2. Description of the Related Art In order to secure a resting place for wild birds or a spawning place for fish, artificial floating islands are provided on the water surface such as lakes and marshes. Such floating islands are vegetation floating islands on the surface of which the plants thrive in order to provide a landscape close to nature and to suppress eutrophication of water quality.

A conventional floating island is disclosed, for example, in Japanese Patent Laid-Open No. 9-1544.
As disclosed in No. 22, a vegetative material and a buoyant body are filled in a bag-shaped net. There is also known a plastic box-shaped main body in which vegetation material is filled inside and a buoyancy body is attached outside.

[0004]

Since the shape of the floating island of the bag-like net is not constant, the shape of the floating island changes over time. Further, in some cases, there is a problem that the internal buoyancy body is biased, and a state of being half sunk is caused. The plastic box-shaped floating island described above does not have a natural view because the plastic part and the buoyant body are exposed, and furthermore, there is a problem that the plastic deteriorates due to ultraviolet rays and becomes unsightly. There is also a problem that the vegetation material inside is washed by the waves and easily flows out.

The present invention has been made in order to solve such problems, and has a constant shape, does not lose its shape, makes it difficult for vegetation inside to be washed away by waves, and is stably installed for a long period of time. Things.

[0006]

SUMMARY OF THE INVENTION The present invention provides a main body block having a cylindrical peripheral wall made of a hard material having a buoyant body buried therein and a net disposed at the bottom thereof, and a vegetation material filled therein. And a floating island.

Since the peripheral wall of the main body block is made of a hard material, its shape does not change even after a long period of time. Since the buoyancy body is buried inside the surrounding wall, it is not exposed to the outside and is close to the natural scenery so that it is not unsightly. Since the bottom is a net, the roots of the plant protrude into the water through the gaps in the mesh, improving the growth of the plant and absorbing nutrients in the water to promote water purification. Further, when the waves are rough, the net on the lower surface absorbs waves from below, so that the vibration is small and the net is hardly affected by the waves.

[0008] The hard material of the peripheral wall may be a concrete material such as porous concrete, lightweight concrete, high-strength concrete, fiber reinforced concrete, or rust-proof iron or stainless steel. In particular, when a concrete material is used, it is inexpensive and easy to manufacture, and it is also easy to produce a log-like (so-called pseudo wood) appearance or wood grain pattern to create a landscape close to nature.
In addition, when porous concrete, which is porous concrete containing a large amount of coarse aggregate, is used, microorganisms inhabiting a large number of pores of the porous concrete decompose pollutants in water, so that the water purification function is improved. In addition, plants are rooted in a large number of pores of the porous concrete, and plants are prosperous on the surface, the concrete surface is not exposed, and a more natural scenery is exhibited. Also, in the case of concrete other than porous concrete, grass and moss grow on the surface by roughening the surface such as shot finishing.

As the buoyant body, foamed plastic, FR
P or the like can be used. Since the buoyant body is buried inside the peripheral wall, it is not deteriorated by ultraviolet rays.
In addition, since it is not exposed to the outside, the scenery is excellent.

Examples of the net include a stainless wire net, a rust-proofing (plating, resin coating, etc.) iron wire net, FR
P, vinylon fiber nets and the like can be used.

The vegetation material may be ordinary planting soil, but may include zeolite, activated carbon (charcoal, rice husk charcoal), porous ceramics,
A material having a water purification function such as a phosphorus absorbing material can be used. If these materials having a water purification effect are packed in a net-like bag, they can be easily replaced when the water purification effect decreases. The vegetation material can be prevented from flowing out by covering the surface with a nonwoven fabric or by packing the entire vegetation material in a net-like bag.

[0012] A wave-returning portion protruding outward can be formed above the outer peripheral surface of the peripheral wall. When the wave returning portion is formed, it is difficult for the water of the wave to enter the inside of the main body block, and it is possible to prevent the outflow of the vegetation material.

A connecting portion such as a circular ring can be formed on the outer peripheral surface of the main body block. By connecting a plurality of floating islands at this connection portion, a large floating island can be easily constructed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings of embodiments. 1 is a top view of the main body block 2, FIG. 2 is a cross-sectional view of the main body block 2, and FIG. 3 is a cross-sectional view of the constructed floating island 1.

The main body block 2 is formed in a short cylindrical shape by a peripheral wall 3 of porous concrete. A styrofoam body 5 of styrofoam is embedded in the peripheral wall 3 to give buoyancy. A net 4 made of stainless steel is provided at the bottom. The outer periphery of the net 4 is fixed by being swallowed into the inner surface of the peripheral wall 3. A wave returning portion 6 that protrudes outward is formed integrally with an upper portion of the outer peripheral surface of the peripheral wall 3. On the outer surface of the peripheral wall 3, connecting portions 7 each having a circular ring are planted on all sides.

The inside of the main body block 2 is filled with a vegetation material 8 as shown in FIG. The vegetation material 8 is a mixture of a plant soil with a material having a water purification effect such as activated carbon. The floating island 1 shown in FIG.
It is connected by. A metal fitting such as a shackle or a rubber or resin string can be used as the connecting tool. The connection of the floating islands is desirably flexible so that it is not destroyed if moved up and down by the waves. By connecting a large number of floating islands in this way, a large floating island can be easily constructed.

The floating island 1 can be fixed so as not to be washed away by connecting an anchor 10 to the connecting portion 7 as shown in FIG.

In the vegetation material 8 filled in the main body block 2, plants grow in time, the roots of which reach the water, absorb nutrients from the water, and purify the water. Since the peripheral wall 3 of the main body block 2 is made of porous concrete, the peripheral wall 3 itself has a water purification function. In addition, grass and moss grow on the surface, and the concrete surface is not exposed, so that a landscape close to nature is exhibited. Becomes

Since the wave-return portion is formed on the peripheral wall 3 of the main body block 2, even when the wave is high, the vegetation material 8 inside the vegetation material 8 is formed.
Is not easily washed by the waves, and the outflow of vegetation material can be prevented. Also, since the bottom surface is a net, it absorbs the water pressure of the waves and is installed stably with little shaking.

[0020]

The floating island of the present invention has a constant shape, does not lose its shape, and does not expose the buoyant body to the outside, so that a landscape close to nature can be obtained. Moreover, even when a wave is high, it is hard to shake and is installed in a stable state for a long time.

[Brief description of the drawings]

FIG. 1 is a top view of a main body block 2. FIG.

FIG. 2 is a sectional view of a main body block 2.

FIG. 3 is a sectional view of the floating island 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floating island 2 Main body block 3 Perimeter wall 4 Net 5 Floating body 6 Wave return part 7 Connecting part 8 Vegetation material 9 Connecting tool 10 Anchor

Claims (6)

[Claims] 1. A main body block 2 having a cylindrical peripheral wall 3 made of a hard material having a buoyant body 5 embedded therein and a net 4 disposed at the bottom thereof, and a vegetation material 8 filled therein. Ukishima 2. The floating island according to claim 1, wherein a wave-returning portion 6 is formed on the outer peripheral surface of the peripheral wall 3 so as to project outward. 3. The floating island according to claim 1, wherein said peripheral wall is made of porous concrete. 4. The floating island according to claim 1, wherein said peripheral wall is made of concrete, and an outer peripheral surface thereof is roughened. 5. The floating island according to claim 1, wherein a connecting portion such as a ring is provided on an outer peripheral surface of the main body block.
Floating island characterized by the formation of 6. A floating island according to claim 5, wherein said plurality of floating islands are connected by connecting said connecting portions to each other.