JP2002194726A - Marine product resource increasing wave dissipating block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a marine product resource increasing wave dissipating block. SOLUTION: The bottoms of a plurality of small truncated conical forms having the porous surfaces are so embedded that each of their gaps can form a groove-like space, the upper part of each of the truncated conical forms is projected from the surface of a large-sized wave dissipating block, the groove- like space easily roots spores of algae, the roots of algae are easily rooted in the fine porous holes, bar-shaped members are erected in the surface of the large-sized wave dissipating block at required intervals, and since wave preventing nets are stretched between the bar-shaped members, the block can be laid on the height of the upper surface of the block by a difference in height.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block for growing aquatic resources such as algae.

[0002]

BACKGROUND ART Algae such as laver and kelp have high value as foods themselves, and are useful as diets for high-grade marine products such as abalone, sea urchins, and turban shells. As a kindergarten to provide an effective place for the protection and propagation of fishery resources. CO2 by photosynthesis
It also contributes to water purification, such as fixation of 2 and supply of dissolved oxygen, fixation of nitrogen and phosphorus.

[0003]

By the way, when shore structures such as breakwaters, jetties, and submerged embankments are constructed, the structures affect the surrounding sea area. , May disappear. One of the reasons for this is that the use of a wave-dissipating block having a smooth surface on the above-mentioned structure makes it impossible to capture and activate algae spores.

[0004] The present invention has been made to prevent the seaweed beds from being damaged by the above-mentioned coastal structures and to proliferate algae. Specifically, a covering block used for these coastal structures is provided.・ By processing the surface of the wave-dissipating block, etc., or by providing accessories, it promotes the capture and sedimentation of algae spores and sprouts, facilitating implantation, improving rooting, and a large-sized wave-dissipating block. It is intended to facilitate the attachment and growth of various aquatic organisms and algae by laying them at different heights, thereby increasing the seaweed beds and thereby increasing the growth of fish and shellfish.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a plurality of small frustum cones having a porous surface portion are embedded in a bottom portion thereof so that a gap between them forms a groove-like void. A small groove is formed on the upper surface of the pyramid, the upper part of the truncated cone protrudes from the surface of the large wave-dissipating block, the groove-shaped voids or small grooves facilitate the implantation of algal spores, and The fine pores of the quality make the roots of the algae easy to root,
Establish bar-shaped members on the surface of the large wave-dissipating block at required intervals,
This is a marine resource breeding wave-dissipating block in which nets for reducing tides and waves or preventing invasion of fish and shells are stretched between rod-shaped members, and large-sized wave-dissipating blocks are laid with a difference in height.

Further, the small frustum cone is formed by covering the upper surface with nets, and the small frustum is detachably attached to the surface of the large wave-dissipating block by a mounting bracket.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1, 2 and 3, the present invention relates to a porous material such as Kanuma soil or mullet soil which is solidified in a porous state with concrete, a porous material such as porous concrete, lava, Otani rock, or the like. It is formed in a polygonal pyramid such as a quadrangular pyramid, or a small truncated pyramid 1 having a cone shape. By protruding from the surface of the large wave-dissipating block, the groove-shaped void makes it easier and more reliable for the implantation of algae spores and germs, and the roots of algae enter the fine pores of the porous material,
The roots have been improved.

On the surface of the large wave breaking block 2 of the above-mentioned covering block or wave breaking block, one end of a bar-shaped material 3, especially a thinning material made of cedar, pine or the like is embedded, and cotton yarn is interposed between the other ends protruding from the block. The tidal current and the energy of waves are reduced by winding and linking nets made of natural materials such as palm fibers or nets 4 made of synthetic fibers or wire mesh, and spores and germs of algae floating on the waves are reduced. It is a marine resource breeding block of a covered block or a wave-dissipating block that is easily captured.

When the porous material is formed into the truncated cone 1, if holes or grooves are formed in the top end surface, implantation of spores and germs becomes easier.

The truncated pyramid has a shape that is difficult to come off when embedded in concrete, and forms a groove-like void between them.

[0011] Porous solids such as Kanuma soil or mullet soil have a function of adsorbing nutrients. Therefore, on coasts where nutrients are scarce, those utilizing this function are used.

The nets 4 are preferably made of a natural material, because they are tainted and disappear with age. When it takes a long time to form a stable seaweed bed, a durable synthetic fiber net is used.

The thinned wood not only serves as a support material for the net, but also provides nutrients by decay and is useful for reducing the energy of wave energy.

Further, thinning materials are usually used by peeling and peeling branches, and in many cases, straight-shaped materials are used. However, in the present invention, a slightly bent material having branches and skin can be used. Therefore, forest resources can be used effectively.

The large wave-dissipating block 2 has a through-hole 5 penetrating vertically so as to reduce the lifting pressure and reduce the volume of concrete. Then, as shown in FIG. 3, they are continuously arranged on the slope.

FIGS. 4 and 5 show a modified example of the small frustum cone 1. In FIG. 4, the upper portion is formed as a porous portion 6 and the lower portion is formed as a concrete portion 7 integrally. FIG. 5 shows that when a small frustum cone 1 is manufactured, a biodegradable fiber, for example, a sheet or net made of palm, hemp, cotton, straw rope, or the like is set in a mold, and concrete is cast and removed. After the mold, the surface is covered with porous nets. Then, the nets 9 are cut into the concrete surface on the concrete surface, and the surface can be made fine and uneven and porous.
Also, even if it is corroded after being laid in the sea, the dents due to its traces can make the concrete surface porous. Furthermore, even if the small head is worn, the block body remains. FIG. 6 shows a small frustum cone 1 with a dowel or anchor 8 projecting from the lower surface thereof.

FIGS. 7 to 15 show other modified examples of the small truncated pyramid 1 whose surface is made of a porous material.
On the upper surface thereof, surface small grooves 10 are formed, and in addition to the mutual groove-like voids of the truncated cones 1, the small grooves 10 also increase the area for correcting zoospores of seaweed and increase the proliferation effect.

A metal support fitting 11 made of stainless steel or the like and a mounting fitting 12 are buried in the concrete surface of the large wave breaking block 2 and used as a pedestal to mount the small truncated cone 1. The handle 13 taken after the growth of the seaweed can be used to transfer the frustum 1 to another location.

FIGS. 16 to 20 show another embodiment of the present invention. In the plan view, the arrangement of small frustum cones 1, large wave-dissipating blocks 2, rods 3, nets 4, etc. is changed. When laying on a slope or the like, the large wave-dissipating block 2 is provided with a height difference (H) at required intervals so that the entire slope is not smooth, and the traveling direction and traveling speed of the tide and waves Are arranged to bring about changes.

FIG. 21 shows a modified example of the rod-shaped body 3. The rod-shaped body 3 is connected to the top of the adjacent rod-shaped body 3 by being inclined and protruded from the upper surface of the large wave-blocking block. Stretched in shape. In addition, the nets 4 are provided so as to cover the top of the rod 3 horizontally so as to prevent fish and shellfish from invading, and sometimes prevent seaweed from being eaten at the time of germination.

FIGS. 22, 23 and 24 show modified examples of the arrangement of the large wave-eliminating block 2, the truncated pyramid 1 and the like.

[0022]

This effect has the above-mentioned structure, and a large number of small porous truncated pyramids on the surface of a large wave-dissipating block and groove-like voids improve the implantation and rooting of algal spores and germs. The wave is reduced by the bar and the net of the thinning material etc. established on the upper surface of the large wave-dissipating block, facilitating the capture and sedimentation of algae, and laying the large wave-dissipating block with a height difference Promotes the formation of various biota.

[Brief description of the drawings]

FIG. 1 is a plan view of a wave canceling block according to the present invention.

FIG. 2 is a side view of the embodiment.

FIG. 3 is a sectional view of a use state of the embodiment.

FIG. 4 is a plan view of a modification of the block.

FIG. 5 is a sectional view of another truncated cone.

FIG. 6 is a sectional view of another truncated cone.

FIG. 7 is a plan view of a vertical example of a truncated cone.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is another side view of FIG. 7;

FIG. 10 is a plan view of a mounting portion of the truncated cone.

FIG. 11 is a side view of FIG. 10;

FIG. 12 is another side view of FIG. 10;

FIG. 13 is a plan view of the usage state of the frustum cone of FIG. 7;

FIG. 14 is a side view of FIG.

FIG. 15 is another side view of FIG.

FIG. 16 is a plan view of another embodiment of the present invention.

FIG. 17 is a side view of the embodiment.

FIG. 18 is another side view of the embodiment.

FIG. 19 is another side view of the embodiment.

FIG. 20 is a sectional view of the use state of the embodiment.

FIG. 21 is a side view of a modification of the block of the present invention.

FIG. 22 is a plan view of a modified example of the present invention.

FIG. 23 is a perspective view of the use state of the net.

FIG. 24 is a plan view of a modification of the present invention.

FIG. 25 is a plan view of a modification of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... frustum cone, 2 ... large wave-elimination block, 3 ... rod-shaped body, 4
... nets, 5 ... through holes, 6 ... porous parts, 7 ... concrete parts, 8 ... anchor bars, 9 ... nets, 10 ... small grooves, 11
... Supporting bracket, 12 ... Mounting bracket, 13 ... Handle.

Claims (6)

[Claims] 1. A plurality of small truncated cones having a porous surface portion are embedded so that the bottoms thereof form a groove-like space with a mutual gap therebetween. A fishery resource protruding from the surface of the wave-dissipating block, wherein the groove-like voids facilitate the implantation of algae spores, and the porous fine pores facilitate rooting of algae roots. Wave breaking block for propagation. 2. The wave-dissipating block for breeding marine resources according to claim 1, wherein a small groove is formed on an upper surface of the small frustum. 3. The wave-dissipating block according to claim 1, wherein an upper surface of the small frustum is covered with nets. 4. The wave breaking block for breeding marine resources according to claim 1, wherein the small truncated cone is detachably attached to the surface of the large wave breaking block by a mounting bracket. 5. The wave-dissipating wave for marine resources according to claim 1, wherein rod-shaped members are set up on the surface of the large-sized wave-dissipating block at required intervals, and a net for reducing tides and waves is stretched between the rod-shaped members. block. 6. The marine resource breeding system according to claim 1, wherein the large wave-dissipating block is laid with a difference in height to change the traveling direction and traveling speed of the tide and waves. Wave-dissipating block.