JP2010101139A - Tide prevention apparatus and structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tide prevention apparatus which can surely dam up water at submergence and the like, enables quick installation of a tide prevention plate even when a large amount of water flows at once at tsunami arrival, bank rip, and the like, and is operated only when necessary to surely dam up water. <P>SOLUTION: The tide prevention apparatus includes an underground pit formed below the ground level and filled with water, the tide prevention plate embedded so as to sink into the underground pit, and a gas injector structured inside the tide prevention plate sinking into the underground pit so as to allow gas injection into the inside of the tide prevention plate. The gas injection into the inside of the tide prevention plate with the gas injector raises the tide prevention plate above the ground level. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is arranged around a building, a civil engineering work, etc., and a tide device for preventing water from entering or flowing out during a tsunami or flood caused by an earthquake, and this tide device are arranged in parallel. Concerning the tide structure.

  Conventionally, for example, in areas where there is a risk of inundation due to tsunamis or floods caused by earthquakes, it has been widely practiced to raise the ground of buildings or build embankments on both banks of the river to prevent water intrusion and outflow. ing.

In addition, in the vicinity of buildings where the ground cannot be raised, it is generally practiced to dam the water with a tide plate by installing a tide plate at a location where the water should be stopped.
Conventionally, such a tide plate is generally formed in an arbitrary shape such as a flat plate, and has been manually installed beforehand at a place where it is necessary to dam the water when it is likely to be submerged.

  However, when installing a tide plate by hand, installing a tide plate in anticipation of flooding is not only impossible, but it can not be installed when there are no people due to sudden heavy rain, etc. If you do, people will be unable to enter and exit.

  Therefore, in order not to obstruct access and traffic, the tide plate is usually stored in the wall of the building, and when necessary, it can be quickly moved by horizontally moving it on the rail provided on the ground surface. A slide-type tide device that can install a tide plate is also being developed.

  However, in such a slide type tide apparatus, dirt or stones may be caught between the rails. In this case, the tide plate may malfunction, and water may not be reliably dammed up. .

  For this reason, the tide plate is usually stored under the ground surface or the like, and it is desirable to improve the usability of the building so that it can protrude upward from the ground surface when necessary. Patent Document 1 discloses a tide apparatus having a simple structure.

  As shown in FIG. 6, such a tide apparatus 100 forms an underground pit 102 below the ground surface 110, and has a water inlet 106 that vertically penetrates the ceiling wall 104 of the underground pit 102. Each of the slits 108 is formed, and a tide plate 112, which is connected to the floating member 114 at the lower end and floats together with the floating member 114 by the buoyancy of water, is inserted into the underground pit 102 through the slit 108. It is housed so as to protrude upward from the ground surface 110.

In the tide apparatus 100, when the ground is flooded due to flooding due to heavy rain, water flows into the underground pit 102 from the water inlet provided on the ceiling wall 104 of the underground pit 102 and accumulates therein. In response to the buoyancy of water, the floating member 114 and the tide plate 112 rise together and the tide plate 112 protrudes above the ground surface 110, so that the tide plate 112 can block water. It has become.
JP-A-7-197751

  However, since the conventional tide apparatus 100 disclosed in Patent Document 1 operates the tide plate 112 by the buoyancy of the floating member 114, water actually enters the underground pit 102 via the inlet 106. If not taken in, the tide plate 112 cannot stand up above the ground surface 110.

That is, the tide apparatus 100 is configured not to operate until the ground is flooded due to flooding or the like.
However, the amount of water that flows out in the event of a tsunami due to an earthquake or the break of a dike is not the amount of water that gradually floods the ground surface 110, and a large amount of water often flows all at once. Will not be in time for water damming.

  Further, in the normal time, when water accidentally flows into the underground pit 102 from the water inlet, the tide plate 112 protrudes from the ground surface 110 by the floating member 114, which is dangerous. There was a possibility that it might occur.

  In view of such a current situation, the present invention can reliably dam the water at the time of submergence, etc., and can quickly install a tide plate even if a large amount of water flows in the event of a tsunami or bank break. An object of the present invention is to provide a tide apparatus that operates only when necessary and can reliably block water.

The present invention was invented in order to achieve the problems and objects in the prior art as described above,
The tide apparatus of the present invention is
An underground pit formed below the ground surface and filled with water,
A tide plate embedded so as to sink into the underground pit,
A gas injector configured to inject gas into the inside of the tide plate submerged in the underground pit;
Have
The tide plate is raised from the ground surface by injecting gas into the tide plate by the gas injector.

  In this way, by injecting gas into the tide plate, if the tide plate is raised and lowered, it has a simple configuration, so it can be operated reliably when necessary, and maintainability during normal times is also good It is.

  In addition, since the tide plate is configured to rise only when gas is injected into the tide plate, water flows into the underground pit by mistake, as in a tide device using a conventional buoyancy body. There is no problem that the tide plate rises when it is done.

Furthermore, in the tide apparatus of this invention, since gas is used, a tide board can be raised early compared with the case where the conventional water is stored and a tide body raises a tide board.
For this reason, for example, even if the water level suddenly increases, the tide plate can be operated to block the water.

Moreover, the tide apparatus of the present invention is
The tide plate is a box having a hollow inside and only an open bottom.

  With such a box, the weight of the tide plate itself can be reduced and the injected gas can be efficiently stored inside, so that the tide plate can be quickly raised.

Moreover, the tide apparatus of the present invention is
The gas injector is configured to manually inject gas.

  If gas injection is made manually in this way, it can be reliably operated when necessary, such as in an emergency, and the structure can be simplified and manufacturing costs can be reduced. it can.

Moreover, the tide apparatus of the present invention is
The gas injector is configured to automatically inject gas based on a signal from a sensor.

If gas injection is automatically performed in this way, it can be activated by a signal from a predetermined sensor even in the event of an emergency without a person on the spot.
Moreover, the tide apparatus of the present invention is
The sensor is
A water level sensing device for sensing a predetermined water level and / or a seismic sensing device for sensing a predetermined vibration.

  In this way, if the sensor is a water level sensing device, the tide apparatus can be activated by operating the sensor when the water level reaches a predetermined level. Moreover, if it is a seismic sensing device, a sensor will operate | move at the time of a predetermined seismic intensity, for example, a tide apparatus can be operated before a tsunami generate | occur | produces and it can prepare for a tsunami in advance.

Moreover, the tide apparatus of the present invention is
The tide apparatus is
When the tide plate rises from the ground surface and reaches a predetermined position, the tide plate is provided with a gas injection stop device that stops the gas injection into the tide plate by the gas injector.

If the gas injection stopping device is provided in this way, the tide plate can be stopped at a predetermined position.
In addition, even if the tide plate reaches the top position, if the gas is still injected, the gas inside the tide plate will blow out beyond the allowable amount, but a gas injection stop device is provided. If so, it is possible to prevent gas ejection.

Moreover, the tide apparatus of the present invention is
The tide apparatus is
A fixing device for fixing the tide plate at a predetermined position when the tide plate rises from the ground surface is provided.

  If the fixing device is provided in this way, even if the gas injector breaks down after the tide plate has been raised, the tide plate will not be lowered, so that water can be reliably dammed.

Moreover, the tide apparatus of the present invention is
The said tide plate is comprised from the material which has corrosion resistance, It is characterized by the above-mentioned.
If such a material is used, even if the tide plate is submerged in the water in the underground pit, it is difficult for rust to occur, so that it can be reliably operated when necessary to block water.

Moreover, the tide apparatus of the present invention is
The tide plate is made of an aluminum alloy.
Such an aluminum alloy is easy to handle and easy to handle because of its low specific gravity. Moreover, since it is excellent in corrosion resistance, it is difficult to rust even if it is always submerged in the water in the underground pit, so that it can be reliably operated when necessary and water can be blocked.

Moreover, the tide apparatus of the present invention is
The gas injected by the gas injector is an inert gas.
Such an inert gas is unlikely to burn or cause a chemical reaction, so it is suitable even when a long-term storage is necessary, such as a tide prevention device, when it does not know when it will operate. Can be used.

Moreover, the tide apparatus of the present invention is
The tide apparatus includes a forcible elevating apparatus that forcibly raises and lowers the tide plate.

If the forced elevating device is provided in this way, even if the gas injector is broken, the tide plate can be surely raised to a predetermined position and water can be blocked.
Moreover, the tide apparatus of the present invention is
The tide apparatus is
When the water in the underground pit is reduced from a predetermined amount, an automatic water supply device that automatically sets the predetermined amount is provided.

  If an automatic water supply device is provided in this way, a certain amount of water is always stored in the underground pit. Therefore, no matter what time the tide device operates, it is reliably sent from the gas injector. Gas can be injected into the tide plate, and the tide plate can be reliably raised.

Moreover, the tide structure of the present invention is
A plurality of the tide apparatus according to any one of the above is provided in parallel.
If comprised in this way, water can be dammed over a desired distance.

  According to the present invention, it is possible to reliably dam the water at the time of flooding, etc., and even if a large amount of water flows all at once in the event of a tsunami or levee breakage, the tide plate can be installed quickly and only when necessary. The tide apparatus which can act | operate and can dam water reliably can be provided.

Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.
1 is a perspective view of a tide apparatus according to an embodiment of the present invention in which a tide plate is accommodated in an underground pit. FIG. 2 is a cross-sectional view taken along line AA of the tide apparatus shown in FIG. FIG. 3 is a perspective view showing a state in which the tide plate is protruded upward from the ground surface in the embodiment of the tide device of the present invention, and FIG. 4 is a cross-sectional view taken along the line BB of the tide device shown in FIG. FIG. 5 is an enlarged perspective view of a main part in another embodiment of the tide apparatus of the present invention.

The tide apparatus and the tide structure of the present invention are arranged around buildings, civil engineering works, and the like to prevent water from entering and flowing out during tsunamis and floods caused by earthquakes.
As shown in FIG. 1 and FIG. 2, the tide apparatus 10 of the present invention includes an underground pit 14 formed below the ground surface 12 and filled with water 16, and an inside of the underground pit 14. And a gas injector 20 configured to be able to inject a gas 26 into the tide plate 18 submerged in the underground pit 14.

In the present embodiment, the case where the tide apparatus 10 is provided on an embankment is taken as an example, so that the seawater 22 is particularly used for damming.
If the interface of the seawater 22 is expected to rise above the normal ground surface 12 due to a typhoon, for example, before the sea surface reaches the ground surface 12, as shown in FIG. 3 and FIG. By injecting the gas 26 into the tide plate 18 by the gas injector 20, the tide plate 18 is raised above the ground surface 12, whereby the seawater 22 can be reliably dammed.

  The tide plate 18 is a box 24 that is hollow inside and only the bottom surface is opened, and is usually submerged in the water 16 of the underground pit 14. When the gas 26 is injected from the injection pipe 32 of the gas injector 20 and the buoyancy of the gas 26 exceeds the weight of the box 24, the tide plate 18 is configured to project upward.

  For this reason, it is preferable that the material of the tide plate 18 is light in specific gravity, and since it is normally submerged in water, it is preferable to use a material excellent in corrosion resistance. An example of such a material is an aluminum alloy.

  In such a tide apparatus 10, when the tide plate 18 protrudes above the ground surface 12 and reaches a predetermined position, the gas injection in which the gas 26 is stopped from being injected into the tide plate 18 by the gas injector 20. A stop device (not shown) is preferably provided.

If the gas injection stopping device is provided in this way, the tide plate 18 can be stopped at a predetermined position.
In addition, even if the tide plate 18 reaches the predetermined top position, if the gas 26 continues to be injected into the tide plate 18 by the gas injector 20, the gas 26 inside the tide plate 18 has an allowable amount. However, if a gas injection stop device is provided, it is possible to prevent the gas 26 from being ejected.

  The gas injection stop device may have any configuration as long as the gas injection device 20 stops the injection of the gas 26 into the tide plate 18 when the tide plate 18 reaches a predetermined position. However, for example, a sensor (not shown) is installed in advance at the highest position where the tide plate 18 rises, and when the tide plate 18 reaches the highest position and the sensor detects it, a signal is generated. May be configured so that the gas injector 20 receives the gas and stops the gas injection.

  In addition, the water 16 in the underground pit 14 is suitable for confining the gas 26 in the tide plate 18 when the gas 26 is injected into the tide plate 18. By pouring into the tide plate 18, the tide plate 18 can be raised.

For this reason, it is preferable to provide an automatic water supply device (not shown) that automatically supplies water so that the amount of water in the underground pit 14 is always a predetermined amount.
If the automatic water supply apparatus is provided in this way, a constant amount of water 16 can be always stored in the underground pit 14, so that the gas injecting machine can be surely operated no matter what the tide apparatus 10 is activated. The gas 26 sent from 20 can be injected into the tide plate 18, and the tide plate 18 can be reliably raised.

  Further, the gas 26 injected by the gas injector 20 is not particularly limited, but if it is an inert gas, it is difficult to burn or cause a chemical reaction. This method is suitable when long-term storage is required without knowing whether it will work.

  In addition, although the tide apparatus 10 of this invention may perform the operation | movement of the gas injection machine 20 manually or automatically, in the case of manual operation, first, the gas installed in the gas injection machine 20 The gas 26 can be discharged from the injection pipe 32 by manually opening the valve of the storage tank 34.

  On the other hand, in the case of automatic, for example, when a sensor such as a water level sensing device (not shown) or a seismic sensing device (not shown) is set in advance and this sensor is activated to generate a signal, The valve of the gas storage tank 34 of the injector 20 may be opened to release the gas 26 from the injection pipe 32.

  In addition to the sensors described above, the sensor is not particularly limited, for example, a device that receives an instruction to open a valve with a mobile phone or a device that receives an instruction to open a valve with an emergency signal.

  By the way, the tide plate 18 that has risen above the ground surface 12 is lowered again if the internal gas 26 escapes, and cannot function as the tide plate 18.

  For this reason, as shown in FIG. 5, it is preferable to provide a fixing device 28 for fixing the tide plate 18 in a raised state. The fixing device 28 may have any configuration as long as the tide plate 18 can be prevented from descending. For example, in this embodiment, a stopper is inserted into a part of the tide plate 18 to force the tide plate 18 to be forced. I try to prevent the descent.

  In addition, since the tide apparatus 10 is required to operate reliably in an emergency, it is preferable to provide the forced lifting device 30 in case the gas injector 20 cannot be operated.

  Such a forced lifting device 30 forcibly raises the tide plate 18 by a manual winch. As for the tide device 10, for equipment that is related to human life if it does not work, It is preferable to take such emergency measures.

  Further, in the tide apparatus 10 of the present embodiment shown in FIGS. 1 and 3, the three tide boards 18 are provided, but the number is not particularly limited, and the required length and ease of installation are provided. It is preferable to determine whether to use a plurality of sheets or a single sheet in consideration of the above.

  Also, a plurality of these tide devices 10 may be arranged in parallel to form a tide structure (not shown). In this way, water is supplied over a large area such as a coast or a river dike. Can be dammed up.

  Thus, in the tide apparatus 10 and tide structure of this invention, since the tide board 18 is raised rather than the ground surface 12 by inject | pouring the gas 26 into the inside of the tide board 18, the structure is very simple. In addition, it can be reliably operated in an emergency.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made without departing from the object of the present invention.

FIG. 1 is a perspective view showing a state where a tide plate is accommodated in an underground pit in an embodiment of the tide device of the present invention. 2 is a cross-sectional view taken along line AA of the tide apparatus shown in FIG. FIG. 3 is a perspective view of the tide apparatus according to the embodiment of the present invention in a state in which the tide board is projected upward from the ground surface. FIG. 4 is a cross-sectional view taken along line BB of the tide apparatus shown in FIG. FIG. 5 is an enlarged perspective view of a main part in another embodiment of the tide apparatus of the present invention. FIG. 6 is a schematic cross-sectional view of a conventional tide apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Tide prevention device 12 ... Ground surface 14 ... Underground pit 16 ... Water 18 ... Tide plate 20 ... Gas injection machine 22 ... Seawater 24 ... Box 26 -Gas 28-Fixing device 30-Forced lifting device 32-Injection pipe 34-Gas storage tank 100-Tide device 102-Underground pit 104-Ceiling wall 106- ..Inlet 108 ... Slit 110 ... Ground surface 112 ... Tide plate 114 ... Floating member

Claims (13)

An underground pit formed below the ground surface and filled with water,
A tide plate embedded so as to sink into the underground pit,
A gas injector configured to inject gas into the inside of the tide plate submerged in the underground pit;
Have
The tide apparatus which is comprised so that the said tide board may be raised from a ground surface by inject | pouring gas into the said tide board with the said gas injection machine.   2. The tide apparatus according to claim 1, wherein the tide board is a box that is hollow inside and that is open only at the bottom.   The tide apparatus according to claim 1 or 2, wherein the gas injector is configured so that gas is manually injected.   The tide apparatus according to claim 1 or 2, wherein the gas injector is configured to automatically inject gas based on a signal from a sensor. The sensor is
The tide apparatus according to claim 4, wherein the tide apparatus is a water level sensing device for sensing a predetermined water level and / or a seismic sensing device for sensing a predetermined vibration. The tide apparatus is
6. The gas injection stop device according to claim 1, further comprising: a gas injection stop device that stops injection of gas into the tide plate by the gas injector when the tide plate rises from a ground surface and reaches a predetermined position. The tide apparatus as described in any one. The tide apparatus is
The tide apparatus according to any one of claims 1 to 6, further comprising a fixing device that fixes the tide board at a predetermined position when the tide board rises from the ground surface.   The tide apparatus according to any one of claims 1 to 7, wherein the tide board is made of a material having corrosion resistance.   The tide apparatus according to claim 8, wherein the tide board is made of an aluminum alloy.   The tide apparatus according to any one of claims 1 to 9, wherein the gas injected by the gas injector is an inert gas. The tide apparatus is
The tide apparatus according to any one of claims 1 to 10, further comprising a forcible elevating device that forcibly raises and lowers the tide plate. The tide apparatus is
The tide apparatus according to any one of claims 1 to 11, further comprising an automatic water supply device that automatically sets the predetermined amount when water in the underground pit is reduced from a predetermined amount. A tide structure comprising a plurality of the tide apparatuses according to claim 1 arranged in parallel.

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