JPH0757939B2 - Wave breaking method and wave breaking structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] This is an invention in which wave peaks are cut off and dropped into the next wave troughs so that the wave troughs can be averaged to eliminate the waves.

[Conventional technology]

In the conventional breakwater, it was very difficult to break the water with large depth and wave height.

[Problems to be solved by the invention]

It solves the problem that it is very difficult to break large water depth and wave height with conventional breakwaters, and at the same time, the problem of poor exchangeability of seawater in the port, and environmental changes such as beach deformation due to quicksand. It is an invention that attempts to solve the problem that maintenance is difficult.

[Means for solving the problem] A bottomless box with a check valve that can close the four sides and discharge air at the top of the ceiling plate is connected to the average water surface continuously at right angles to the wave traveling direction. Fix it nearby, when the peak of the wave invades from the bottom of the box, let the air inside the box escape and temporarily support the wave inside the box, and when the valley of the wave comes to the bottom of the box, drop water in the valley By averaging the waves to dissipate them, a bottomless box having a ceiling plate on a pillar or similar support standing on the foundation of the seabed and having vertical and horizontal partition walls in the plane A check valve that opens only upward is installed on the ceiling plate of each room that is mounted and fixed nearby and is arranged in multiple rows and columns by partition walls, and the box is continuously extended at right angles to the traveling direction of waves. The problem is solved by providing a wave-dissipating structure formed by

[Work]

When the wave peak enters the box, the check valve in each room opens to eliminate air, and even if the wave peak passes, the water level in the box is not closed because the check valve is closed. Water is trapped inside. When the wave peaks pass and wave troughs enter under the box, the water surface of the wave is lower than the bottom of the box, so air enters the room from the bottom and the water trapped in each room As it progresses, it is successively dropped into the valley of waves. Moreover, since there are many chambers arranged vertically and horizontally, when a valley enters the bottom of the box, the water in the valley will drop, so even if waves enter diagonally, one room will fall surely. And fill the valley. By repeating the above action, the mountain of waves will be cut off and the trough of the next wave will be filled, the wave height inside the port will be significantly smaller than outside the port, and it will act to reach the purpose of wave extinction. It is a thing.

〔Example〕

A long box (2) having a bottomless ceiling panel (6) having vertical and horizontal partition walls (1) is placed and fixed on the top of a column or a support (3) having a foundation on the seabed, and the box (2 ) End partition wall (1 ') extends deeper than the front end partition wall (1) to the water surface, and the lower end has an L shape having a horizontal plate (4) facing rearward, and the horizontal plate (4) forms a box. (2) It prevents the generation of waves at the rear part. The box (2) thus formed is continuously installed at a right angle to the wave traveling direction to form a structure. A check valve (7) is provided on the ceiling plate (6) of each compartment (5) of the box (2) so that the air in the compartment (5) escapes only upward. The check valve (7) opens outward due to the internal air pressure,
If the external air pressure is high, it cannot be closed and air cannot enter. The box (2) is placed and fixed on the upper part of the support (3) so as to be located near the average water surface (8). When the wave mountain (9) enters the box (2), the check valve (7) of each chamber (5) opens to remove air, but when the wave mountain (9) passes, the box (9) Although the water level in 2) tends to decrease, the check valve (7) closes and the water level does not decrease, and the water is trapped in the box (2). When the wave crest (9) passes and the wave trough (10) enters under the box (2), the water level of the wave becomes lower than the bottom of the box (2), so that air enters the room from the bottom. The water that was trapped in each room was filled with water, and as the waves progressed, wave trough (10)
Are dropped in sequence. By repeating the above action, the mountain of waves will be cut off and the valley of the next wave will be filled, the wave height inside the port will be significantly smaller than outside the port, and it will act to reach the purpose of wave extinction. It is a thing. In addition to pillars, the support can be something like a wall parallel to the propagation of waves, or a part of a building such as an undersea city or a maritime city can be used as a support to form a wave-dissipating structure. It does not depart from the gist of the invention.

[Effect]

It is possible to restrict (dissipate) waves that other construction methods cannot.

[Brief description of drawings]

1 is a vertical side view showing an embodiment of the present application, and FIG. 2 is a plan view of a box.

Claims (2)

[Claims] 1. A bottomless box having four check valves closed at the top and a ceiling valve provided with a check valve capable of discharging air is fixed near the average water surface continuously at right angles to the traveling direction of waves. When a mountain of waves intrudes from the bottom of the box, it escapes the air in the box to temporarily support the waves in the box, and when the valley of the waves comes to the bottom of the box, drops the water in the valley to average the waves. A wave-dissipating method characterized by converting to wave-dissipation. 2. A bottomless box having a ceiling plate on a pillar or a support similar to this standing on a foundation of the seabed, and having vertical and horizontal partition walls in a planar state is placed and fixed near the average water surface, A check valve that opens only upward is provided on the ceiling plate of each chamber formed by partition walls arranged in a plurality of rows and columns, and the box is continuous and extended at a right angle to the traveling direction of the waves. Wave-dissipating structure.