JP2003055945A - Water barrier bag body, water barrier and forming method of water barrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a water barrier for preventing a flood by taking water to be stopped from an intake port 1c into a water barrier bag body 1 formed of a flexible sheet and comprising the intake port 1c and a vent port 1d, and using the water as weight. SOLUTION: According to this method, since the preliminary preparation of water or earth forming the weight or heavy matter is dispensed with in the formation of the water barrier, it is not necessary to ensure the weight or heavy matter such as earth or water may not be ensured in an emergency water disaster. Further, since the forming material of the water barrier is lightweight and foldable, water-stopping treatment can be rapidly performed in all water-stopping places, and the removing work of the wall barrier is also facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water barrier bag body for forming a water barrier wall, a water barrier wall formed by the bag body, and a method for forming the water barrier wall. For a sudden rise in water volume, etc., simply and simply around the underground entrances, locations around rivers, etc. that prevent flooding, or around locations where there is a fear that the water level will rise above the existing embankment due to high waves, tsunamis, etc. TECHNICAL FIELD The present invention relates to a water barrier bag body capable of forming a water barrier wall, a water barrier wall which can be rapidly treated to stop water by using the water barrier wall body, and a method for forming a water barrier wall.

[0002]

2. Description of the Related Art Conventionally, as a method for urgently preventing water infiltration, there is known a method in which sandbags are piled up to a height higher than the inundation height without a gap. It is difficult to obtain sandbags in urban areas during floods. Especially for floods where the water level rises rapidly, it takes too much time to put, transport, and load sandbags. Also, due to heavy labor, there was a possibility that we could not cope with it due to lack of manpower.

There is also a method of putting water in a large water container to replace the sandbag, but there is a problem that the place for procuring the water to be put in the water container is limited and the installation place is limited.

Therefore, according to the conventional method for coping with water stoppage in the event of water damage, a bag, a container or the like is weighted so that its bulk density is large, and, for example, soil or water is preliminarily used as a weight (drag generation product). The most common method is to put them in a container so that they will not flow out, and then store them in a sealed manner, and stack them without gaps.Therefore, it is difficult to procure such heavy items or heavy items. However, there is a problem in that it is difficult to carry a bag body, a container, or the like containing a heavy object.

The present invention has been made in view of the above circumstances, and it is possible to easily procure the above-mentioned weights and heavy items, and the water-proof wall bag and the water-proof wall for easy transportation. An object of the present invention is to provide a water barrier that can be formed quickly, easily, and simply by using a bag, and a method for forming such a water barrier.

[0006]

In order to achieve the above-mentioned object, the present inventor has made earnest studies and, as a result, prepared a bag body made of a flexible sheet having an intake port for taking in water,
If you put the bag in a place where you want to stop the water, the water to stop will automatically enter the bag from its intake port and become a weight and weight as described above. It is unnecessary to carry weights, procure heavy objects in advance, transport the bag containing it, and stack it at the place where you want to stop the water, even in the event of water damage such as sudden increase in water volume, The inventors have found that a water barrier that can be easily installed at a desired location to stop water, and that can easily and reliably prevent water intrusion at the time of flood damage, has achieved the present invention.

That is, the present invention is (1) a bag for forming a water barrier for preventing water infiltration, which is made of a flexible sheet and has an intake port for taking in water into the bag. (2) The above (1), which is characterized in that
A water barrier is characterized in that water is contained in the bag of the water barrier bag described above, and a water barrier surface and a ground contact surface are formed, and (3) the bag of the water barrier bag body described in (1) above. Provided is a method for forming a water barrier, which is characterized in that water is taken into the body through the water intake port.

Since the water barrier bag of the present invention is formed of a flexible sheet, it can be folded, does not take up much storage space, and is easy to carry. When the water is stopped, the water to be stopped flows into the bag body through the water intake port of the bag body, so that it is not necessary to pre-load the bag body and store the heavy object therein. And when there is no need for stopping water,
Since the water that was present in the bag as a heavy item is discharged from the intake port in conjunction with the water level of the water to be stopped, the weight and heavy item are no longer in the bag and are no longer needed. It is also easy to withdraw the barrier.

Here, if the water barrier bag is further provided with an air vent, when the water is stopped, the water to be stopped flows from the water intake and The air in the bag corresponding to the volume is discharged from the air vent.
Therefore, water easily flows into the bag and only the pressure of the inflowing water is applied, and the bag does not break. It is possible for water to be present.

Further, if the one having the above-mentioned water barrier bag body and the other connecting portion capable of connecting the other water barrier bag body to each other is used, when the water barrier wall is formed, the bag bodies are connected to each other. The connection can be made easily and surely. Also, strong water flow and wind,
If there is a possibility that the formed water barrier will be washed away or fall down, attach a binding jig such as an eyelet that attaches a binding tool such as a rope or a string to the connecting portion. It can be easily and firmly connected and fixed to other fixed objects such as piles struck on, and can also be used as a fixed part to be fixed to the ground described later. Even if the water pressure exceeds the height,
It is possible to prevent the water that has been stopped from flowing out all at once by crushing the water barrier, pushing the water barrier by the flow of water or wind, or falling down.

Further, if it has a fixing portion for fixing it to the ground, it is possible to more effectively prevent the situation where the formed water barrier is washed away. That is, for example, when a water barrier is formed, if an extending portion that extends outwardly is provided around the portion that will be the ground contact surface as a fixed portion, it is expected that the ground surface and the ground contact surface contact the water barrier. If there is a fear that a frictional force does not occur, the shortage can be struck by a pile or the like in the fixed portion around the ground contact surface to supplement the resistance to water flow.

Further, if a protective member, such as a net, for preventing the inflow of solid substances into the bag body is attached to the water intake port, it is possible to prevent the inflow of solid substances into the bag body. Maintenance work such as cleaning work when withdrawing can be omitted, and withdrawal work becomes easier.

Further, if the flexible sheet is a synthetic resin sheet, the bag body becomes lighter in weight, and a simple, simple and quick water-stop treatment is performed against a sudden increase in water volume due to a heavy rain. It becomes possible. In particular, when a synthetic resin laminated cloth or a rubberized cloth is selected as the synthetic resin sheet, it is possible to effectively prevent the bag from being broken even when driftwood or the like comes into contact with the water barrier when water is stopped.

The water barrier of the present invention is one in which water is contained in the bag body and a water barrier surface and a grounding surface are formed. The water barrier surface can stop water and the water contained in the bag body. Becomes a heavy load (drag generation product) and the frictional resistance between the ground contact surface of the water barrier and the ground is obtained, so that the water can be stopped without being swept away by the water flow.

If the width (L) of the ground contact surface is larger than the height (H) of the water barrier surface (H / L <1), the inside of the bag body forming the water barrier will be described. Since the mass of water is larger than the pressure of the water to be stopped on the water barrier surface, the water barrier can be kept in any shape and height without being crushed by the water to stop the water barrier. It becomes difficult to be washed away.

Further, by disposing a support for holding the shape of the water barrier formed by the bag body, the water barrier can be made stronger, for example, it is crushed by a water flow or broken by wind. Can be prevented.

In the method of forming a water barrier of the present invention, the water barrier is formed by taking in water from the water intake into the bag body of the water barrier bag. The water level and the amount of water commensurate with the water level are heavy, so that the water barrier contained as a heavy object (drag generating material) can be easily formed.

Here, the above-mentioned forming method connects a plurality of the water barrier bag bodies to the adjacent bag bodies, and takes water into the bag bodies of the respective water barrier bag bodies at locations where water is stopped. It is possible to form a waterproof line of any shape as long as it forms an adapted waterproof line, and, for example, the wall around the opening of the underground entrance and the water barrier are connected to each other by using the above-mentioned connecting portion or the like. Since it is possible to stop the water by connecting it by connecting it with the earth, it is possible to prevent the infiltration of water underground.

[0019]

EFFECTS OF THE INVENTION According to the present invention, when forming a water barrier, it is not necessary to preliminarily weigh water and to prepare heavy materials such as soil and water. However, since it is not necessary to secure heavy objects, and because the material for forming the water barrier is lightweight and foldable, it is possible to quickly stop the water treatment regardless of where the water is stopped. Will also be easier.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a schematic perspective view showing a configuration example of a water barrier bag body of the present invention and showing a state in which the water barrier bag body 1 is inflated (when unfolded).
The water barrier bag body 1 is formed of a flexible and foldable water-impermeable sheet so as to have a substantially triangular prism shape when deployed. When the water barrier A (see FIG. 4) is formed by tilting the substantially triangular prism sideways, the water contact surface 1b is a surface that is in contact with the ground and that is substantially perpendicular to the ground surface 1a. And the water contact surface 1b is a ground contact surface 1
An intake port 1c is provided near the lower end portion in contact with a and an air vent port 1d is provided near the upper end portion, and a net (not shown) is attached to the intake port 1c as a protective member.

Further, sheet-like extending portions 1e, 1e, 1e extending from the grounding surface 1a are formed as fixing portions on the tangential side of the grounding surface 1a with the water blocking surface 1b, and on the peripheral portions on both sides thereof. Has been done. Further, sheet-like connecting portions 1f and 1f extending from the water-proof surface 1b are formed at both ends of the water-proof surface 1b. Note that 1g and 1g in the figure
Shows a pile driving part for driving a pile as required when forming a water barrier as shown in FIG. And the connecting portions 1f, 1f
Eyelets 1h, 1h for attaching binding tools such as ropes and strings for connecting and fixing to the piles are attached near the upper end near the water-proof surface 1b.

As the flexible sheet forming the waterproof wall bag 1, for example, polyethylene, polyethylene-based resin such as polyethylene-based copolymer obtained by copolymerizing ethylene and vinyl acetate, or olefin-based resin such as polypropylene resin is used. , Vinyl chloride-based resin, urethane-based resin, various elastomer-based resins, and the like, or a synthetic resin sheet which is used as a forming material by appropriately combining two or more kinds. Such a sheet may be water-permeable or water-impermeable as long as the amount of water that leaks is smaller than the amount of water that flows in, but in view of its function as a water barrier, it must be water-impermeable. Is preferred. By using a flexible impermeable sheet in this way, the bag can be folded, and it does not take up space when stored in a warehouse, etc., and a large amount of the taken-in water can be stored outside the bag. It can be stored as a heavy weight and a weight of the water barrier without letting it flow out. In the case of the present invention, among these, a synthetic resin sheet which is particularly excellent in lightness is suitable, and further, at the time of stopping water, if strength is required so as not to break the bag even when driftwood or the like contacts the water barrier, Polyolefin resin fibers such as polyethylene resin fibers and polypropylene resin fibers, polyester resin fibers, polyamide resin fibers including high-strength and high-modulus fibers such as aramid fibers, carbon fibers, glass fibers, etc., either alone or in combination. A synthetic resin laminated cloth obtained by laminating the above synthetic resin on a base cloth which is formed by appropriately combining the above, and a rubberized cloth using various elastomers are more preferable.

The thickness and strength of the flexible sheet can be appropriately selected depending on the position where the water is stopped, and are not particularly limited. For example, assuming that the water level is about 50 cm. , Polyethylene resin fiber 10
Cloth with 14 x 14 / inch of 00d flat yarns and polyethylene resin on both sides
In the case of a laminated sheet having a thickness of about 0 μm, the tensile strength of the sheet is about 200 N / cm, and the bag body can sufficiently withstand the water stop.

Also, the size of the bag is not particularly limited, but in the case of the bag formed of the above-mentioned sheet, for example, the height (arrow H in FIGS. 1 and 4) = 6.
0 to 70 cm, width (arrow L in FIGS. 1 and 4) = 100 to 1
20 cm, length (arrow W in FIGS. 1 and 4) = 150 to 20
0 cm, extension part 1e = 20 to 50 cm × 100 to 120
cm, connecting portion 1f = 20 to 50 cm × 60 to 70 cm,
If the air vent 1d = 2 to 10 cm × 30 to 50 cm and the intake 1c = 5 to 15 cm × 50 to 70 cm,
It is suitable.

In the case of the present invention, the width of the ground contact surface 1a (arrow L in FIGS. 1 and 4) and the height of the water protection surface 1b (arrow H in FIGS. 1 and 4) when the water barrier is formed are H. / L <1, preferably H
/L=0.9 to 0.1, more preferably H / L = 0.7
It is preferable to form it so as to be 0.4. If the height (H) of the water blocking surface 1b relative to the width (L) of the ground contact surface 1a is too large, the water blocking wall may be easily crushed by water that stops water,
The water barrier may be easily washed away by water flow.

The method for manufacturing the waterproof wall bag 1 is not particularly limited, and as long as it has the above-mentioned structure, it is a method of joining sheets so that the required strength can be exhibited.
There is no problem, and an appropriate method can be adopted. Specific examples of the joining method include welding, joining with an adhesive, sewing, and the like. In addition, it is preferable to over tape. Further, it is preferable that no water leaks at the joint.

Next, an example of the construction of the method for forming a water barrier of the present invention using the water barrier bag 1 will be described below with reference to FIGS. Here, FIG. 2 and FIG. 3 are schematic side views of the water barrier bag body 1 arranged at a place where water is stopped, and FIG. 2 shows a water arranged so as to stand up when water enters. FIG. 3 shows the bag body 1 for a water barrier, and FIG. 3 shows the bag body 1 for a water barrier, which is arranged by standing upright from the beginning by a pillar (pile). FIG. 4 is a schematic side view of a water barrier for explaining a configuration example of the water barrier of the present invention.

First, in the case of the water barrier bag 1 shown in FIG.
The watertight bag body 1 is folded and carried to a place where water is stopped, and placed on the ground B so that the grounding surface 1a is on the lower side and the water blocking surface 1b is on the upper side. Next, each pile driving section 1 of the sheet-like extending section 1e extending from the tangential side of the ground contacting surface 1a with the water blocking surface 1b.
The piles 2 (see FIG. 4) are respectively driven into g (see FIG. 1) to fix the water barrier bag body 1 at the installation position. In this waterproof wall bag 1, when water enters the bag through the intake port 1c, the waterproof surface 1b rises upward and the waterproof wall bag 1 is inflated. . It is also possible for an operator to lift the water blocking surface 1b and deploy the water blocking bag 1 if necessary. After the water barrier bag 1 is inflated in this manner, each connecting portion 1f
A string is passed through each eyelet 1h (see FIG. 1) attached to each connecting portion 1f and the pile. If necessary, as shown in FIG. 4, the support body C may be assembled so that the hinge portion 3 is formed on the pile 2, or the support body C may be further attached.
A support body D that forms an auxiliary fixing portion 4 is attached to the vicinity of the center of the
Alternatively, a pile may be struck at an appropriate position of e (see FIG. 1) to be fixed to the ground.

On the other hand, in the case of the water barrier bag 1 shown in FIG.
Carry the bag 1 for water barriers in a folded state to a place where water is stopped, drive the piles 2 into each pile driving portion 1g (see FIG. 1), and connect each eyelet 1h (see FIG. 1) with a string. The part 1f and the pile are bound together. Also in this case, if necessary, the support C may be assembled so that the hinge portion 3 is formed on the pile 2, and further, the support D may be assembled as shown in FIG. Extensions 1 on both sides of 1
e, 1e (see FIG. 1) may be staked at appropriate places to be fixed to the ground. In the case of this water barrier bag body 1, for example, if the support body C is assembled, the water barrier bag body 1 can be expanded by pushing down the support body C with the hinge portion 3 as a fulcrum. Note that, for example, when the water barrier bag 1 is arranged without mounting the support C and the water barrier bag 1 is hung from the pile 2 (not inflated), the When water enters from the water intake 1c (see FIG. 1) at times, it becomes inflated.

By the same operation as described above, the other water barrier bag bodies are sequentially arranged and fixed at the places where water is stopped, and the water barrier bag bodies adjacent to each other are watertight or sealed by the connecting portions. Connect so that they are almost watertight. Here, the means for connecting by the connecting portion is not particularly limited, for example, to bind each eyelet through a string, to connect via a hook-and-loop fastener, to connect via a fastener, via an adhesive / adhesive tape The water-proof surfaces 1b can be connected to each other in a watertight manner or in a substantially watertight manner by a means such as connection. Here, when a sudden increase in the water volume is predicted, an appropriate number among the plurality of piles used as a fixture of each water barrier bag body 1 and a part of the support, as shown in FIG. It is desirable that the rope 5 be tied to the reinforcing pile 6 that supplements the effect of the pile 2 against the water pressure applied to the water blocking surface 1b.

When a desired number of water barrier bag bodies 1 are connected to the places where water is stopped in this way, and a desired water stop line is formed by the watertight or substantially watertight connected watertight surfaces 1b, When it becomes necessary to stop the water supply, the water to be stopped flows from the water intake 1c of each water barrier bag (see FIG. 1), and the volume of air is released through the air vent 1d (see FIG. 1). 4), a water barrier A having the same water level as that of the water to be stopped and having a water amount corresponding to the water level is formed, as shown in FIG. When the water that stops the water flows in from the water intake port 1c (see FIG. 1) and the water barrier A is formed, the net is attached to the water intake port as a protective member. No solid substances such as stones, driftwood, and garbage will flow in.

The extension of each water barrier A is made up of stakes on the ground B.
In addition to being fixed to the pile, since the connecting portion is bound and fixed to the pile, even if there is a fear that the expected frictional force does not occur between the ground B in contact with the water barrier A and the grounding surface 1a, its lack is insufficient. Minutes can be supplemented by these. Further, since the shape of the waterproof wall A is held by the piles 2, the supports C and D, the connecting portion is bound and fixed, and the fixed pile is bound and fixed to the reinforcing pile 6 by the rope 5. Even if a water pressure higher than the height of the water barrier A is applied, the water barrier A is crushed and the water is prevented from flowing out at once.

When removing the water barrier A, the water barrier 1b
As the water level in contact with the water drops as the water draws, and the water in the water barrier A (water barrier bag body 1) is discharged accordingly, the water that has been a heavy weight is easily discharged. can do. Then, since the solid substance as described above does not enter into the water barrier bag body 1 from which the water inside has been discharged due to the net of the water intake port, maintenance such as cleaning work is unnecessary, and it can be dried as necessary. After that, it can be folded and stored until it is used again.

The present invention is not limited to the above-mentioned constitution, and various modifications may be made without departing from the gist of the present invention. For example, the shape of the bag for the water barrier when it is deployed is a substantially square pole. It may be a substantially polygonal column, a substantially columnar column, or the like.

[Brief description of drawings]

FIG. 1 is a schematic perspective view illustrating a configuration example of a waterproof wall bag according to the present invention.

FIG. 2 is a schematic cross-sectional view illustrating a configuration example of the method of forming a water barrier of the present invention, showing a state in which a water barrier bag is arranged at a place where water is stopped.

FIG. 3 is a schematic cross-sectional view showing a state in which a waterproof barrier bag for explaining another configuration example of the waterproof barrier forming method of the present invention is arranged at a place where water is stopped.

FIG. 4 is a schematic side view of a water barrier for explaining a configuration example of the water barrier of the present invention.

[Explanation of symbols]

A water barrier B ground C, D support 1 Water barrier bag 1a Ground plane 1b flood control 1c water intake 1d air vent 1e Extension part (fixed part) 1f connecting part

Claims (11)

[Claims] 1. A bag body for forming a water barrier for preventing water infiltration, which is formed of a flexible sheet and has an intake port for taking in water into the bag body. Bag for wall. 2. The water barrier bag body according to claim 1, further comprising an air vent. 3. The water barrier bag body according to claim 1, further comprising a connecting portion capable of connecting one of the water barrier bag bodies and the other water barrier bag body. 4. The water barrier bag body according to claim 1, further comprising a fixing portion fixed to the ground. 5. The water barrier bag body according to any one of claims 1 to 4, wherein a protective member for preventing the inflow of a solid substance or the like into the bag body is attached to the water intake port. 6. The water barrier bag according to claim 1, wherein the flexible sheet is made of synthetic resin. 7. A waterproof wall, wherein water is contained in the waterproof bag body according to any one of claims 1 to 6 and a waterproof surface and a grounding surface are formed. 8. The water barrier according to claim 7, wherein the width of the ground contact surface is larger than the height of the water barrier surface. 9. The water barrier according to claim 7, wherein a support for holding the shape of the water barrier is provided. 10. A method for forming a water barrier, wherein water is taken into the bag body of the water barrier bag body according to any one of claims 1 to 6 from the water intake port. 11. A watertight line adapted to a location where water is stopped by connecting a plurality of said water barrier bag bodies to adjacent bag bodies and taking water into each water barrier bag body. Item 10. A method for forming a water barrier according to Item 10.