JPS5934577Y2 - Wave dissipating body - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wave-dissipating body, and an object of the present invention is to provide a wave-dissipating body that has particularly excellent wave-dissipating effects and is useful for preventing sea erosion on the coast.

Examples of the present invention will be described in detail below.

The wave absorber 1 includes a substantially hemispherical wall 2 and a substantially cylindrical wall 3 connected to an iron wall, and is made of concrete.

At least a part of the wall 2 remains above the sea surface 4 even at high tide, and a water hole 5 is bored around the wall, and a hole 6 large enough for a person to pass through is bored at the top.

The lower end of the wall 3 is partially embedded in the seabed surface 7 and stands upright, and the wall is provided with a water hole 9 that remains below the sea surface 8 even at low tide.

The wave absorbers 1 can be installed in one row approximately perpendicular to the direction of wave propagation (Fig. 3), in two or more rows (Fig. 4), or in a ring (Fig. 4). Figure 5)
.

In the case of an annular shape, an inlet 10 is formed in a part of it to be used as a fish and shellfish culture pond, and the wave dissipator itself is suitably used for cultivating shellfish inside regardless of how it is arranged. Access is done by hanging a ladder 12 over the hole 6.

The waves applied to the wave absorber 1 pass over the wall 2, and some of them flow into the interior through the holes 5 and 6 in the wall 2, reducing the strength or momentum of the waves.

Due to the hemispherical shape of wall 2, waves that cross over wall 2 flow smoothly and their water force is weakened, and seawater flowing into wall 2 flows in all directions due to the hemispherical nature of wall 2, colliding with each other. The momentum is canceled out.

When the waves recede, the seawater inside the wave dissipating body flows out of the hole 9 and a space is formed again.

In this way, the wave-absorbing body can sufficiently reduce the energy of the incoming waves, and can sufficiently prevent sea erosion of the beach without carrying away the sand on the beach offshore.

Also, since it does not receive significant force from waves, it will not fall over, sink, or move.

In order to strengthen the installation of the wave absorbing body, it is preferable to provide a flange 11 inside the wall 3 and ground the flange to the seabed surface, or to fill the wall 0 with sand, stones, etc.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a sectional view, and FIGS. 3 to 5 are plan views. In the figure, numeral 1 is a wave absorber, 2 is a hemispherical wall, 3 is a cylindrical wall, and 5, 6, and 9 are holes.

Claims (1)

[Scope of utility model registration request] The hemispherical wall is connected to a nearly cylindrical wall, and at least part of it remains above the sea surface even at high tide, allowing seawater to pass through the water holes in the wall, while the lower part stands up on the ocean floor. The wall is a wave-dissipating body with water holes that allow water to pass through even at low tide.