JPH04289311A - Wave dissipation equipment - Google Patents

Abstract

PURPOSE:To effectively dissipate waves even when wave strikes a wave dissipation body, and to effectively prevent the damage to the wave dissipating body. CONSTITUTION:A wave dissipating equipment comprises a wave dissipator A consisting of a plurality of wave dissipating bodies 1 composed of two or more flat plates, wires 3 passing over a pulley installed on the top surface of wave dissipating body 1, and a wire winding drum 4 installed at the end of the wave dissipating body 1 disposed on the upstream side in the dissipator A. One end of the wire 3 is fixed to an anchor B installed on the sea bottom.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave dissipating device that floats on water and effectively eliminates waves.

0002

[Prior Art] Conventionally, wave-dissipating levees have been well known as devices that eliminate waves or make waves quieter. Conventionally, such wave-dissipating levees have been of the type installed on the bottom of the water, etc. When installing them, a large number of stones and blocks are sunk to the bottom of the water, and a wave-dissipating bank is constructed on top of these stones and blocks, or concrete, etc. is poured in to dissipate the waves. It is common to construct embankments.

[0003] However, the problem with the above-mentioned conventional wave-dissipating levee is that it consumes a huge amount of materials when installed, and also requires a huge amount of work time and workers, so the cost is also huge. It had

[0004] Conventionally, a table-type wave canceling device has already been proposed as a device that solves this problem and achieves more effective wave canceling.

[0005] This table-type wave-dissipating device has a flat wave-dissipating body fixed to the upper end of a leg that stands up from the bottom of the water, and is arranged so that the wave-dissipating body is located below the water surface. used.

However, such a conventional table-type wave dissipating device requires foundation work to erect and fix the legs on the bottom of the water, and furthermore, the wave dissipating body is composed of a rigid plate-like body. Therefore, when the water level drops below the wave-dissipating body due to low tide, there is a problem that the waves may sink under the wave-dissipating body and damage the wave-dissipating body.

[0007] By the way, the inventor of the present invention
No. 4035 proposes a "wave-dissipating device" that solves the problems of the conventional wave-dissipating devices.

[0008] The "wave dissipating device" proposed by the present inventor
A wave absorber made of a material or structure that floats on the water surface, a wire winding device installed on the top surface of the wave absorber,
The wave absorber includes a pulley disposed on the upper surface of the wave absorbing body at a portion facing the wire winding device, and a wire suspended from the wire winding device and the pulley, the wire being suspended from the wire winding device and the pulley. One end of the vessel is moored to an anchor placed on the bottom of the water.

[0009] When the wave is dissipated by the wave dissipating device, the wire winding device is operated to cause one end of the wave dissipating body to protrude above the water surface at a predetermined angle; In addition, by floating the wave dissipating body with the other end submerged in water, waves downstream of the installation portion of the wave dissipating body can be made quieter.

0010

[Problems with the Prior Art] However, even in the above-mentioned wave-absorbing device proposed by the present inventor, since the wave-absorbing body is composed of a flat plate-like rigid body, there is a certain limit to the ability to withstand large wave pressures. , in the event of a typhoon, etc., and maintenance costs such as replacement and repair are high, and the wave dissipation effect is also small.

[0011] The present invention was devised in view of the current situation, and its purpose is to be able to install it in response to changes in water level, and to be able to install it easily and quickly without any foundation work. In addition to being able to be installed at any time, the wave-absorbing body can be configured to flexibly move and dissipate waves in response to wave pressure, as if it were ``wind in willows'', resulting in a good wave-dissipating effect and damage. The aim is to provide a wave dissipating device that is difficult to dissipate.

0012

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a wave absorber floating on the water surface, a wire connected at one end to the wave absorber, and a wire connected at the other end to the wave absorber. The technical premise is that the wave-dissipating device is constituted by a connected underwater anchor, and the wave-dissipating body is composed of at least two flat plates, and the lower surface of each of these flat plates is connected to a hinge body. It is characterized by being connected by.

[0013]

[Operation] Therefore, in the wave dissipating device according to the present invention,
The wave-dissipating body is composed of at least two or more flat plates,
The lower surfaces of each of these flat plates are connected by a hinge body, so even if waves collide, they are flexible and can effectively dissipate waves without damaging the wave dissipating body.
In addition, when there is a risk that the wave dissipating device may be damaged, such as during a typhoon, the wire winding device is activated to wind up the wire until the wave dissipating main body is completely submerged in water. The main body can be flexibly moved as if ``wind in the willows'' and damage to the main body can be effectively prevented.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on an embodiment shown in the accompanying drawings. As shown in FIGS. 1 and 2, the wave dissipating device according to this embodiment includes a wave dissipating body A consisting of a plurality of wave dissipating bodies 1 each composed of two or more flat plate bodies, and each of these wave dissipating bodies 1. A wire 3 suspended from a pulley 2 installed on the upper surface, and a wire winding drum 4 disposed at the end of the wave dissipating body 1 disposed on the upstream side of the wave dissipating body A.
One end of the wire 3 is moored to an anchor B installed on the water (sea) floor.

Each wave-dissipating body 1 is made of a material or structure that floats on the water surface WL, and as shown in FIG. 2, each adjacent wave-dissipating body 1 has a hinge body 5 fixed to its lower surface. It is connected so that it can be bent downward.

Each wave dissipating body 1 has a size of, for example, 1 m x 5 m.
In the case of 20 m x 20 m, its planar area is 100 cubic meters, and its buoyancy is 100 tons in terms of air, and 100 tons of power is required for waves to sink this wave-dissipating body 1. Therefore, for example, when wave dissipating body A is constructed by connecting six wave dissipating bodies 1 having the above configuration, 60
It is possible to offset the wave force of 0 tons, and by appropriately connecting the wave dissipating main body 1 according to the size of the waves in the water area where it is installed, waves in the water area can be reliably dissipated.

The pulley 2 is rotatably supported on both ends of each of the wave-dissipating bodies 1.

One end of the wire 3 is connected to the wire winding drum 4, the middle part is suspended from the pulley 2, and the other end is connected to an anchor B fixed on the water (sea) floor. connected.

On the other hand, the wire winding drum 4 for winding the wire 3 suspended from the pulley 2 disposed on the upper surface side of each wave dissipating body 1 is disposed on the upstream side of the waves, as described above. It is disposed at the end of the wave-dissipating body 1 and is configured to be automatically rotated by manual operation or remote control operation.

That is, the winding drum 4 is rotatably supported by a bracket fixed to the wave-dissipating body 1, and is equipped with a locking device consisting of a known mechanism to prevent its rotation. It is configured so that it can be stopped as appropriate.

[0021] The wire winding drum 4 also includes:
As shown in FIG. 1, these winding drums 4 are arranged on the left and right sides of the wave-dissipating main body 1, and although not shown,
They are connected to rotate synchronously via a connecting shaft.

The hinge body 5 is constituted by a known hinge mechanism, and is attached to the bottom surface of each wave dissipating body 1 with such strength that the connected state of each wave dissipating body 1 will not be released even by a wave force of 100 tons, for example. It is fixed. Of course, the mounting position of the hinge body 5 is not limited to the aspect of this embodiment, and for example, the hinge body 5 may be mounted on opposing side surfaces of each wave dissipating body 1.

Next, the case of using the wave canceling device configured as described above will be explained.

First, the wire winding drum 4 is operated to set the wave absorber A horizontally on the water surface WL, as shown in FIG.

When the water level rises from this state, as shown in FIG. 4, in response to the rise in water level, the wave dissipating body 1 on the downstream side bends toward the water in order, so that the low tide All or most of the wave dissipating body A can be kept floating on the water surface WL regardless of the situation. Of course, even if the wave-dissipating body A is swept offshore by water (sea) current, the wave-dissipating body A will be submerged in the water, and its upstream end will be below the water surface WL, as shown in FIG. The wave dissipation effect is not reduced because the wave is set so as to face the wave.

[0026] When a wave collides with the wave dissipating body A set in this way, each wave dissipating body 1 has a buoyancy that cancels out the wave force of, for example, 100 tons. waves can be sufficiently dissipated, and even if large waves act on the wave dissipating body A due to the approach of a low pressure system, each wave dissipating body 1 is connected with flexibility by the hinge body 5. Therefore, it is possible to flexibly move the wave absorbing body A as if ``wind in the willows'' and effectively reduce the wave force without damaging the wave absorbing body A.

That is, the wave-dampening effect of the wave-dampening body A varies depending on the standing angle of the wave-damping body A. When the water surface WL is calm and relatively stable, the wave-damping body A is set horizontally. Furthermore, when the water surface WL is rough and there are high waves, the wave absorber A is erected. Therefore, the wave dissipator A
The larger the rising angle of the wire 3, the greater the wave-dissipating function is obtained, and this rising angle is determined by taking countermeasures such as winding or sending out the wire 3 by taking advantage of the natural phenomenon that the lower the atmospheric pressure, the higher the water surface WL becomes. The standing angle can be automatically increased without taking any special measures.

[0028] Also, due to typhoons, waves etc. are very high,
Not only cannot a sufficient wave-dampening effect be expected with the wave-absorbing body A, but also when there is a risk that the wave-absorbing body A may be damaged, the wire 3 may be wound up by the wire winding drum 4 as shown in FIG. By completely submerging the entire wave-dissipating body 1 in water, the effects of wind and waves can be avoided.

[0029]

Effects of the Invention As explained above, the wave absorbing device according to the present invention comprises the wave absorbing body composed of at least two flat plates, and the lower surface of each of these flat plates being connected by a hinge body. Because it is given flexibility, even when waves collide, the wave absorber can move flexibly like "wind on willows" and effectively dissipate waves, and it also prevents damage to the wave absorber. Furthermore, when there is a risk of damage to the wave dissipating body, the damage can be effectively prevented by activating the wire winding drum and completely submerging it in water. Unlike conventional fixed wave breakers and table-type wave breakers, the system does not dam the water flow from the water surface to the bottom, and as a result, it is possible to effectively prevent pollution in the bay, etc., and it is easy to install. It can be installed very easily and in a short time, the cost required for installation is significantly reduced, and it has many excellent effects such as excellent wave-dissipating effects.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a wave-dissipating device according to an embodiment of the present invention.

FIG. 2 is a front view of the wave dissipating device.

FIG. 3 is an explanatory diagram showing the installed state of the wave dissipating device.

FIG. 4 is an explanatory diagram showing another installation state of the wave dissipating device.

FIG. 5 is an explanatory diagram showing still another installation state of the wave dissipating device.

[Explanation of symbols]

A Wave dissipating body B Anchor 1 Wave dissipating body 2 Pulley 3 Wire 5 Hinge body

Claims (1)

[Claims] Claim 1: A wave-dissipating body comprising a wave-dissipating body floating on the water surface, a wire connected at one end to the wave-dissipating body, and a bottom anchoring body connected to the other end of the wire. A wave-dissipating device characterized in that the wave-dissipating body is constituted by at least two or more flat plates, and the lower surface portions of each of these flat plates are connected by a hinge body.