JPS5811212A - Wave dissipating - Google Patents

Abstract

PURPOSE:To cut down the cost of wave dissipation blocks by a method in which plural old tires are axially arranged and buried in concrete in such a way as to make the central holes of these old tires buffer holes by which the energy of wave is absorbed and reflecting wave is damped. CONSTITUTION:A wave dissipation block made of concrete has a hexahedral shape with buffer holes 2 to effectively damp the energy of imcoming waves, formed in such a way that they are passed throughly in every directions and internally led to each other. In this case, the buffer holes 2 are formed by tubularly connecting old tires 4 by connecting members, providing communication tubes 5 in the horizontally and vertically connecting parts, and burying them by concrete in such a way that the holes 2 are formed in the central concave part 3 of the concrete block to enable wave to smoothly enter the holes 2. Thus, blocks having a high wave dissipating effect can be manufactured at low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wave-dissipating block installed in the sea to absorb wave energy and 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 wave's impact on the breakwater and preventing sand from being washed away from the ocean floor.

However, in the conventional wave-dissipating block, when a large wave collides with the surface, it is vigorously reflected, and this reflected wave has an adverse effect, and moreover, the wave-dissipating block itself has the problem of being easily moved in the sea. Historically, conventional wave-dissipating blocks have had the disadvantage of having to be stacked in a predetermined manner, requiring large-scale equipment and time-consuming work, as the stacking conditions are adjusted to form many voids. there were.

In areas that are hit by large waves, wave-breaking blocks are made large and heavy to prevent shaking when large waves collide, but large wave-breaking blocks have a large surface area and are flat, so large waves can hit these areas. This caused the reflected waves to become stronger, causing sand on the ocean floor to be washed away and adversely affecting 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. ■Purpose This invention was developed to eliminate these drawbacks of conventional wave-breaking blocks.An important objective of this invention is that the wave-breaking block itself absorbs waves, and the absorbed waves The purpose of the present invention is to provide a wave-dampening block that can effectively attenuate the waves by the unevenness on the inner surface of the buffer hole and reduce the reflection of the collision waves.

Another important purpose of this invention is that one 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 shaking, and it can achieve excellent wave-dissipating effects. Furthermore, the object of the present invention is to provide a wave-absorbing block that can be easily stacked because it itself absorbs waves.

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

■ Configuration Embodiments of the present invention will be described below based on the drawings.

The wave-dissipating block 1 shown in Fig. 1 is made of concrete and is formed into a hexahedron with a weight of about 0.5 to 50. A buffer hole 2 is opened.

The buffer holes 2 are opened in recesses in the surface 3 formed at the center opening, as shown in FIG. 2, so that waves can flow in more smoothly.The buffer holes 2 are internally communicated with each other. There is.

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

In order to embed the tire 4 in concrete, for example,
The old tires 4 may be connected into a tubular shape using wire or other tie 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, the connection points where the buffer holes 2 are connected vertically and horizontally in the concrete are preferably made by inserting an old tire into a connecting pipe 5 having a diameter that allows the tire to be inserted and burying it in the concrete.

The tires that are lined up 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. The formation of this has a great energy absorption effect.

The wave-dissipating block 1 shown in Fig. 1 has two buffer holes 2 opened on the front, rear, and upper surfaces, but the number of buffer holes opened on one surface depends on the size of the wave-dissipating block. , for example, 1 to 10, preferably 1 to 3. The buffer hole 2 does not necessarily have to be open on all sides;
The shape of the entire wave-dissipating block is also not limited to a hexahedron.

■Effect As mentioned above, the wave-breaking block of the present invention has buffer holes opening through it, so the energy of the waves colliding with the wave-breaking block is absorbed by the surface, unlike conventional wave-breaking blocks. It is not reflected, is absorbed into the buffer hole and loses no energy, and achieves the excellent effect of significantly attenuating the energy of reflected waves.

This prevents the harmful effect of washing away sand from the ocean floor and achieves ideal properties as a wave-dissipating block. Furthermore, the wave-dissipating block itself will not be shaken by colliding waves, and will be able to rest stably on the seabed. Furthermore, even if the wave-dissipating block becomes larger and has a considerably wider surface area, by opening many buffer holes on its surface, the reflection of waves can be reduced, making it stable and effective at areas with large waves. Achieve effective wave dissipation.

Father, buffer holes are made by arranging old tires coaxially to form unevenness on the inner surface due to the tire beats.
High-energy waves flowing into the buffer hole are effectively attenuated by the unevenness of the tire's bead portion, which has a large flow resistance.

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 extremely 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-dissipating block of the present invention itself absorbs waves, and it has a high wave-dissipating effect even if it is just a conventional wave-dissipating block, and it is also possible to simplify the installation.
Furthermore, even if the piled up state changes due to the impact of large waves, it does not lose its wave-dissipating effect, and has many other benefits.

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

[Brief explanation of 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, and FIG.
The figure is a front view of a connecting pipe that connects tires. 1. Fist wave dissipating block, 2. Buffer hole, 3. Surface, 4.
・Old tires, 5... Connecting pipe applicant: Yu Nishi Sadao No. 1 Figure 2 Figure 2 Figure 3 Figure 1,---1---1---1〆

Claims (4)

[Claims] (1) A wave-dissipating block is formed into a predetermined shape using concrete, and old tires are lined up in the axial direction and buried in the concrete. A buffer hole is provided through the hole, and the inner surface of the buffer hole has unevenness formed by the beats of the tires arranged side by side.This buffer hole absorbs the energy of the waves hitting the surface and reduces the reflected waves. A wave-dissipating block configured to attenuate. (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) Tires with different diameters are lined up and buffer holes are opened [l
A wave-dissipating block according to claim (1). (4) Claim No. (1) in which the buffer holes intersect internally.
Wave-dissipating block described in section.