JPS60486B2 - wave dissipation block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wave-dissipating block that is installed in the sea to absorb wave energy or prevent sand on the seabed from being washed away.

■ Prior art wave-dissipating blocks are arranged underwater near the breakwater or at some distance from it.

This wave-dissipating block absorbs wave energy by scattering it when waves hit it, softening the impact of the waves on the breakwater and preventing the sand on the seabed from being washed away. However, when a large wave collides with the surface of the secondary wave-dissipating block, it is reflected vigorously, and this reflected wave has an adverse effect, and furthermore, the wave-dissipating block itself has the problem of being easy to move underwater.

Furthermore, conventional wave-dissipating blocks have the disadvantage that they need to be stacked in a predetermined manner, requiring large-scale equipment and time-consuming work, since many voids are formed by adjusting the stacking state. - Wave-dissipating blocks are made large and heavy in areas that are hit by large waves to prevent shaking when a large wave collides with them, but large wave-dissipating blocks have a large surface area, and their surfaces are flat, making it difficult for large waves to reach these areas. When it hit, the reflected waves became stronger, and the reflected waves washed away the sand on the ocean floor, creating a negative effect on the breakwater.

Recently, this problem has become a big problem, and various experiments have been repeated, and the results have shown that wave-dissipating blocks increase the amount of sand washed away at the bottom of the breakwater by reflected waves, and that it would be better if they were not installed. Some experimental results show that less sand is washed away.

■Purpose This invention was developed to eliminate these drawbacks of conventional treetop wave blocks.An important purpose of this invention is that the wave-dissipating block itself absorbs waves and buffers the absorbed waves. To provide a wave dissipating block capable of effectively attenuating the reflection of colliding waves by the unevenness of the inner surface of the hole.

Another important object of this invention is that each wave-dissipating block can be made extremely large and heavy to reduce wave reflection, so it can be stably installed on the ocean floor in large waves without any movement, and it can achieve excellent wave-dissipating effects. Furthermore, it is an object of the present invention to provide a wave-dissipating block that can be easily stacked since it itself absorbs waves.

In addition to this invention, another important objective is that used tires, which are the biggest cause of disposal pollution, can be effectively reused, reducing raw material costs, and by arranging tires, cushioning properties and durability can be improved. To provide a wave-dissipating block which can be manufactured easily and at low cost since unevenness with rich characteristics is formed.

(2) Configuration Hereinafter, embodiments of the present invention will be described based on the drawings.

Numamibu shown in Figure 1.

The weight of each block 1 is 0.5 even if it is made of concrete.
It is formed into a hexahedron about the size of ~5 melons, and has buffer holes 2 extending through it in the front and back, left and right, and up and down directions. The buffer hole 2 is
In order to allow the waves to flow in more smoothly, as shown in FIG. 2, a concave part of the surface 3 formed in a central concave area is provided, and the speeds of the buffer holes 2 are selected from each other internally.

As shown in FIG. 2, used old tires 4 are lined up in a tubular shape and buried coaxially with the buffer hole 2 and exposed on the inner surface of the buffer hole 2. A buffer hole 2 in a closed state is formed.

To bury the old tire 4 in concrete, for example,
The old tires 4 may be connected into a tubular shape using wire or other connecting material, and this may be temporarily fixed together with reinforcing bars to a concrete formwork for constructing a breakwater, and then ready-mixed concrete may be poured into the formwork.

In the buffer hole 2 shown in FIG. 2, old tires are lined up in all parts of the buffer hole 2, but it is not necessarily necessary to line up the entire buffer hole 2 with old tires.

As shown in FIG. 3, it is preferable to insert an old tire into a connecting pipe 5 having a diameter that allows the tire to be inserted, and to bury the old tire in the concrete.

Old tires arranged in the buffer hole do not necessarily have to be of the same size, but rather tires of different diameters are lined up and connected in a tubular shape, so that there are no large irregularities in the buffer hole due to the difference in tire size. Formation has a great energy absorption effect.

The wave-dissipating block 1 shown in Fig. 1 has two buffer holes 2 on its front, rear, and top surfaces, but the number of buffer holes per surface depends on the size of the wave-dissipating block. , for example, 1 to 1q, preferably 1 to 3.

The buffer hole 2 does not necessarily need to be closed on all sides,
Furthermore, the overall shape of the treetop wave block is not limited to a hexahedron. ■Effect The wave-dissipating block of the present invention has the following effects as described above.
Since the buffer holes are opened through itself, the energy of the waves that collide with the marsh wave flock is absorbed into the buffer holes instead of being reflected off the surface like in conventional wave-dissipating flocks. It achieves the outstanding effect of significantly attenuating the energy of reflected waves.

By reducing the energy of the reflected waves, it is possible to prevent the harmful effects of the waves from washing away sand on the ocean floor, achieving ideal characteristics as a wave-dissipating block. In addition, the wave-dissipating block itself is not shaken by colliding waves, and has the advantage of being able to rest stably on the seabed. Furthermore, even if the wave-dissipating block becomes large and has a considerably large surface area, by providing many buffer holes on the surface, wave reflection can be reduced, making it stable and effective in large wave areas. Achieve wave dissipation. In addition, by arranging old tires on the same axis, the buffer holes form unevenness on the inner surface due to the tire beats, so the high-energy waves that flow into the buffer holes are directed to the tire beats, which have a large flow resistance. It is effectively attenuated by the unevenness.

Furthermore, since wave-dissipating blocks are used in large quantities on all coasts of the country, the huge amount of old tires generated across the country can be effectively reused with low transportation costs, and they have excellent durability and cushioning properties. Tires with this technology can be supplied at a low cost, reducing raw material costs to a minimum.Furthermore, since unevenness is formed in the buffer hole depending on the shape of the tire, it is also extremely effective in easily manufacturing complex buffer holes with excellent damping characteristics. Realize.

Furthermore, the wave-absorbing block of the present invention absorbs waves by itself, and unlike conventional wave-absorbing blocks, it does not create many gaps by adjusting the stacking state. It has a high wave-dissipating effect just by being thrown into the sea, and it is possible to simplify the installation process.Moreover, even if the piled up state changes due to the impact of large waves, it will not lose its wave-dissipating effect, etc. Equipped with

The wave-dissipating block of the present application can also be used for fish reefs by sinking it into the seabed.

[Brief Description of the Drawings] Fig. 1 is a perspective view of a wave-dissipating block showing one embodiment of the present invention; Fig. 2 is a cross-sectional view of the wave-dissipating block shown in Fig. 1;
The figure is a front view of a connecting pipe that communicates tires. 1...Wave dissipating block, 2...Buffer hole,
3...Surface, 4...Old tires, 5...
...Connecting pipe. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. In a wave-dissipating block made of concrete and molded into a predetermined shape, old tires are lined up in the axial direction and buried in the concrete. A buffer hole is provided through the tire itself, and this buffer hole has an uneven inner surface formed by the beats of the aligned tires, and this buffer hole absorbs the energy of waves hitting the surface. A wave-dissipating block characterized in that it is configured to attenuate reflected waves. 2. The wave-dissipating block according to claim 1, wherein the overall shape is substantially rectangular parallelepiped, the surface is concave in the center, and the concave portion is provided with a buffer hole. 3. The wave dissipating block according to claim 1, wherein tires of different diameters are arranged side by side and buffer holes are opened. 4. The wave dissipating block according to claim 1, wherein the buffer holes intersect inside.