JP2000087399A - Structure having water-impervious wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure which can elevate a water-impervious wall according to the elevation of the water level, in the case of the elevation of the water level. SOLUTION: This structure comprises a water bath portion 1 having an introducing means which is capable of externally introducing water and having its upper surface opened, and a water-impervious wall 10 formed of a material which is lighter in gravity than water. When water is introduced from the introducing means into the water bath 1, the impervious wall 10 functions as a dike, a wall, or the like which can prevent water from entering from the outside by elevating the impervious wall 10 by the buoyancy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure having a water impervious wall which automatically raises the water impervious wall according to the rise of the water level when the water level rises or the water level rises due to a disaster or the like. About.

[0002]

2. Description of the Related Art Conventionally, for example, when the water level of the sea, river, lake, etc. rises suddenly due to a typhoon, a torrential rain, and the like, and there is a possibility that the warning water level may be exceeded, for example, sandbags are artificially piled up on a dike. Although emergency work is being performed, it is a difficult and time-consuming task. Also, in a container for storing water and other liquids, when the amount of liquid to be stored increases, the capacity of the container is constant. Therefore, when a large amount of liquid is introduced, the container overflows.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its main problem is that when the water level rises, the water-impermeable wall can be raised accordingly. An object of the present invention is to provide a structure having a water impermeable wall.

[0004]

According to the present invention, in order to solve the above-mentioned problems, according to the first aspect of the present invention, there is provided a water tank having an introduction means capable of introducing water from the outside and having an open upper surface; The water impervious wall is made of a material having a specific gravity lower than that of water and is built into the water tank so that it can protrude and retract. When water is introduced into the water tank from the introduction means, the water impervious wall rises by buoyancy. It is taking technical measures to make it function as a wall to prevent water from entering. Further, in the invention of claim 2, an inlet is provided at a predetermined height on the side of the water tank that comes into contact with water, and when the water level exceeds a predetermined height, water is introduced into the water tank and the impermeable wall is raised. Is taking the technical steps of: According to the third aspect of the present invention, in addition to the configuration of the second aspect, a dent is provided in the inner bottom of the water tank, and the water in the dent can be discharged to the outside by a water pump. Take steps. In the invention of claim 4,
Providing an inlet at a lower position on the side of the water tank portion that contacts the water,
Technical measures have been taken to provide a drain at the upper position. Further, in the invention of claim 5, a technical means is provided in which a water inlet / outlet communicating with the inside of the water tank is provided in the upper part of the water tank or the impermeable wall. Further, in the invention of claim 6, a technical means is provided in which a retaining means is provided so that the impermeable wall body does not come out of the water tank portion. Further, in the invention of claim 7, a technical measure is taken that the water tank portion is formed in a flat frame shape so as to cover the periphery of the building. Further, according to the invention of claim 8, a container having an introduction means capable of introducing water or other liquid, having a water tank portion having an open upper surface along the outer periphery, and being built in the water tank portion so as to be able to come and go, Water and other liquids are introduced into the water tank from the introduction means, and the water and other liquids are raised by buoyancy. It is taking technical measures to make it function as a wall to prevent infiltration.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment in which a structure having a water impermeable wall according to the present invention is applied to a dike will be described below with reference to the drawings.

The structure shown in FIG. 1 functions as an embankment, and comprises a water tank 1 having an angled cross section and a water-blocking wall 10. The water tank unit 1 is formed of a concrete material or the like and is formed in a box shape having an opening 1a on the upper surface, and extends at a fixed length or is formed endlessly.

An inlet 2 is provided at a position below the wall surface 21 on the side outside of the water tank 1 and in contact with water.
A drain port 3 is provided at an upper position. In the case of the present embodiment, the position of the inlet 3 is set at a position slightly higher than the dangerous water level of the sea, river, lake, or the like adjacent thereto.

Next, the impermeable wall 10 is made of a foamed styrene material or other material having a specific gravity lower than that of water, and is made of a thick block so as to have a predetermined strength capable of withstanding water pressure. . In the present embodiment, the water impermeable wall 10 is made of a foamed styrene material as the core material 10a and the outer periphery thereof is impermeable to the water impermeable sheet 10a.
Although the one sealed by covering with b was used, a plastic basket-shaped container may be connected, and the material and structure are not particularly limited in the present invention. Good.

Therefore, as shown in FIG. 2, when the external water level rises and exceeds the position of the inlet 3, water flows into the water tank 1 from the inlet 3. When the water level in the water tank 1 rises with the rise of the external water level, the impermeable wall 10 functions as a kind of float, and slides right upward while being guided by the inner wall surface of the water tank 1. . Here, in the water tank part 1, the lower part of the impermeable wall body 10 is below the water surface, but rises with the upper part protruding above the water surface.

When the water level in the water tank 1 rises and reaches the position of the drain port 3, the water in the water tank 1 is drained to the outside through the drain port 3, so that the external water level further increases. Even if it rises, the rise of the impermeable wall 10 stops. Even if the outside water level rises and exceeds the drain port 3 and further beyond the water tank part 1, the lower part of the water-blocking wall body 10 is still in the water in the water tank part 1. Further, when the water level rises and exceeds the water tank portion 1, the water impervious wall body 10 rises.
Water pressure is applied from the outside to the water impervious wall body 10, and the impermeable wall body 10 functions as a dyke by receiving this by being hooked at the lower part fitted in the water tank part 1.

For this reason, the water-blocking wall body 10 must have a strength capable of withstanding the water pressure load at least at the lower portion against the inner wall of the water tank part 1 and receiving the water pressure load. Impermeable wall 1
Although 0 may increase the overall strength, it may be a structure having a high strength by reinforcing such as providing a cover of a metal plate only at a lower portion. Also, the water tank 1 is formed in a dovetail shape so that the impermeable wall 10 does not come off from the water storage section 1.
By providing an enlarged retaining base at the bottom corresponding to the above-mentioned dovetail shape, it is possible to more reliably prevent the impermeable wall 10 from coming off.

This structure may be directly provided along the shore of the sea or river as a dike, but may be provided around a building 40 such as a building as shown in FIGS. Good. In this embodiment, a hill 30 is formed at a position distant from the shore 50, and a water storage section 1 formed of a groove is formed along the outer periphery of the hill 30 so as to have an endless flat rectangular frame shape. In the water storage part 1, a plurality of water-blocking walls 10 divided along the extending direction are accommodated. Reference numeral 8 is a fence for protecting the impermeable wall 10.

[0013] Therefore, when flooded beyond the shore 50,
When the water level reaches the inlet 2 in the same manner as described above, water is introduced into the water tank portion 1 and the impermeable wall 10 is raised to the position of the drain 3 according to the rising water level. Since the impermeable wall 10 is held in the water tank portion 1 at that position, the impermeable wall 10 functions as a dike to protect the building from flooding even if the water level rises due to external water increase. . When the water level rises and the external water level drops, the water accumulated in the water storage part 1 is also drained to the outside through the inlet 2, so that the impermeable wall 10 descends,
It is stored in the water tank 1 as before.

The structure shown in FIGS. 5 and 6 shows a different embodiment in which a water inlet is provided at the top. In this structure, the water tank 1 is not provided with an inlet or a drain. Then, a notch 11 having a U-shaped cross section is formed in the impermeable wall 10, and a communication groove 5 penetrating vertically with the water tank 1 is formed. With the above configuration, the water level in the water storage unit 1 can be raised by pumping water into the communication groove 5 through the hose H, and the water-blocking wall 10 can be raised. Similarly, the water level in the water storage unit 1 can be lowered by draining water with a water pump, and the water barrier wall 10 can be lowered. In the figure, reference numeral 6 denotes a depression formed on the bottom surface of the water tank.

The structure shown in FIGS. 7 and 8 is applied to a quay, and shows a different embodiment in which a water introduction port 2 is provided at an upper portion of a water tank section 1. The water tank 1 is made of concrete and has a box shape with an open top, and has a recess 6 at one location on the bottom. A water inlet 2 is formed at an upper position on the outer wall surface. On the other hand, the impermeable wall body 10 housed in the water tank 1 is formed into a rectangular parallelepiped block by regularly connecting a large number of container-like blocks vertically and horizontally, and the outer periphery thereof is covered with a impermeable sheet and sealed. On the upper part, a tread and a paving board 9 for reinforcement may be provided. Reference numeral 8 denotes a curb for protecting the impermeable wall.

As shown in FIG. 6, the water surface such as the sea
In a normal case at a lower position, the impermeable wall 10 is
The upper surface is set to be substantially flush with the other ground. When the water level rises abnormally as shown in FIG. 7, water infiltrates into the water tank 1 through the water introduction port 2, gradually accumulates in the water tank 1, and rises. Along with this, the impermeable wall 10 rises above the water tank 1 and functions as a bank.

When the water level rises, water can be stored in the water tank 2 even if the water level drops. In this embodiment, a drainage channel (not shown) is formed in the depression 6 and can be pumped up by a water pump. Also,
When a small amount of water enters the water tank 1, water is accumulated in the depression 6, so that the water can be pumped up by the pump. Alternatively, a configuration may be adopted in which a drain pipe is communicated with the recess 6 and drainage is possible by opening the plug.

In the above embodiment, the embodiment in which the structure of the present invention is used as a bank has been described. However, this structure may be a container. In the case of a container, as shown in FIG.
A water tank unit 1 is provided annularly along the outer circumference. In this case, the water inlet 2 is provided on the inner side contrary to the above embodiment.
When the drain port 3 is provided, it may be inside or outside. Then, water as an example of a liquid flows into the container,
When the water level exceeds the water introduction port 2, the water flows into the annular water tank 1, and the water is filled in the water tank 1.

Thus, since the water-blocking wall 10 integrally formed in an annular shape rises like a float, the peripheral wall of the container can be raised by the water-blocking wall 10. At this time, it is preferable that the space between the water impermeable wall 10 and the opening 1a of the water tank 1 is sealed by a sealing member or the like so that water does not leak. Since other basic configurations are the same as those of the above-described embodiment, the description thereof is omitted. Further, the use of the container is not particularly limited, and the container can be filled with various liquids. Of course, various design changes can be made without departing from the scope of the present invention.

[0020]

As described above in detail, according to the structure having the impermeable wall according to the present invention, the impermeable wall is automatically raised by utilizing the buoyancy of the water as the water level rises. Therefore, even if the water level rises rapidly due to a natural disaster or the like, flooding can be prevented with a simple structure.
Moreover, since it has a water tank part, water can also be stored as needed. Further, the present invention can be applied to a liquid container as a structure, and can store water and other liquids exceeding the original capacity of the container.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a structure having a water impermeable wall according to the present invention.

FIG. 2 is a cross-sectional view of the embodiment when the water level rises.

FIG. 3 is a plan view showing an embodiment in the case where a protective wall covering a building is used.

FIG. 4 is a sectional view showing the operation of the embodiment.

FIG. 5 is a plan view of an embodiment in which a water introduction port is provided at an upper portion.

FIG. 6 is a sectional view of the embodiment.

FIG. 7 is a cross-sectional view of another embodiment in which a water inlet is provided above.

FIG. 8 is a cross-sectional view of the same example when the water level rises.

FIG. 9 is a sectional view showing a different embodiment in the case of a container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Water tank part 2 ... Water introduction port 3 ... Drainage port 5 ... Communication groove 6 ... Depression part 8 ... Fence 10 ... Water impervious wall body, 11 ... Depression

Claims (8)

[Claims] 1. A water tank having an introduction means capable of introducing water from the outside and having an open upper surface, and a water-blocking wall formed of a material having a specific gravity lower than that of water, which is built in the water tank so as to be able to protrude and retract. When water is introduced into the water tank from the introduction means, the water impermeable wall is raised by buoyancy to function as a wall that prevents water intrusion. body. 2. An inlet is provided at a predetermined height on the side of the water tank that contacts the water, and when the water level exceeds the predetermined height, water is introduced into the water tank to raise the impermeable wall. A structure having the impermeable wall according to claim 1. 3. The water impermeable wall according to claim 2, wherein a depression is provided in the inner bottom of the water tank, and water in the depression can be discharged to the outside by a water pump. Structure. 4. The structure having a water impermeable wall according to claim 1, wherein an introduction port is provided at a lower position on a side of the water tank portion which contacts the water, and a drain port is provided at an upper position. 5. The structure having a water-impervious wall according to claim 1, wherein a water inlet / outlet communicating with the inside of the water-tank is provided in an upper part of the water-tank or a water-impervious wall. 6. A retaining means is provided to prevent the impermeable wall from coming out of the water tank portion.
5. A structure having the impermeable wall according to any one of 5. 7. The water tank section is formed in a planar frame shape so as to cover the periphery of the building.
A structure having the impermeable wall according to any one of the above. 8. A container having an introduction means capable of introducing water and other liquids and having a water tank having an open upper surface along the outer periphery, a container built in the water tank so as to be able to protrude and retract, and having a specific gravity higher than that of water or other liquid. When water or other liquid is introduced into the water tank from the introduction means, the water-impermeable wall rises by buoyancy to prevent water and other liquids from entering. A structure having a water-impervious wall, which functions as a wall.