JP2012255316A - Waterproof underground shelter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof underground shelter which is installed under the ground surface without having a structure on the ground and allows evacuees such as a large number of persons, elderly persons, children, handicapped persons, and sick persons to be rapidly entered.SOLUTION: An encapsulated waterproof shelter is installed under the ground as a measure against tsunami, flood disaster, or the like. The top face of the shelter has a planar shape. The shelter has a door for entrance and exit, a hole for checking the outside, and a lifting and lowering tool. The door for entrance and exit and the hole for checking the outside have encapsulated waterproof capability. The lifting and lowering tool is used in a slide shape during evacuation, allowing for rapid evacuation.

Description

  The present invention relates to a waterproof underground shelter that can evacuate quickly when a flood caused by a typhoon, heavy rain, or the like, or a tsunami is predicted.

  The damage caused by the Tohoku-Pacific Ocean Earthquake and the accompanying tsunami was larger than expected, and there were many people who were late to escape. At this time, more people were saved if shelters were nearby. I guess that.

  Currently, when the Tokai-oki earthquake occurs, the predicted result that a tsunami will reach the coastal area in about 5 minutes after the occurrence is reported, and the park designated in a short time after the evacuation advisory was issued It is not easy to evacuate to high buildings and high ground. Unfortunately, there is very little chance of helping infants and the elderly.

  Currently, as measures against tsunamis, there are methods of preventing the tsunami from being attacked by structures such as breakwaters, tide doors, and sluice gates, and evacuating to hills and high-rise buildings as evacuation sites. The maximum scale of tsunamis that are currently in place cannot be prevented by the built dykes, tide doors and sluice gates. In designated evacuation areas, evacuation should be conducted after evacuation advisories are issued. Even if it starts, it takes time to reach it, and it is almost impossible to evacuate within the time that is expected to reach the tsunami after the earthquake.

  In the conventional technology, even when the time required for evacuation is taken into consideration, some of the facilities that maintain the function of the evacuation center are installed on the ground surface. Structures that have been washed away due to tsunamis, floods, etc. will be damaged by collisions with the equipment installed on the surface of the earth, resulting in a crisis in the lives of those who have lost their function as shelters. There is an urgent need to arrange a primary emergency underground shelter.

  Patent Document 1 is an evacuation device that is an underground capsule buried under the ground, and can be provided with emergency food, water, communication means, bedding and the like, and a capsule body including outside air intake means and drainage means, An evacuation pipeline with an open / close lid protruding from the main body onto the ground is provided, and the evacuation pipeline is provided with a stairway that connects the capsule main body and the outside. Patent invention 2 is a simple underground-type capsule for emergency evacuation, welded in combination with large-diameter steel pipes in the entrance and exit manholes and residential areas, and provided with reinforcing ribs, etc. An invention is disclosed that is provided with a private hatch and is equipped with an in-house power generator and a ventilator to require residence for several days.

JP 2005-315029 A Registered Utility Model No. 3033727

In the inventions described in Patent Document 1 and Patent Document 2, in Patent Document 1, the capsule is buried in the ground, but the evacuation pipeline penetrates from the ground to the ground, and the ground portion of the evacuation pipeline is a guard frame. Protect. In Patent Document 2, the entrance / exit human hole and the exhaust pipe penetrate from the ground to the ground.
When such a structure on the ground is damaged due to a structure that has been washed away due to a tsunami or flood, etc., it collides with a structure installed on the surface of the earth, water or sediment flows from the damaged part into the capsule. The life of people who have evacuated to the evacuation shelter may be dangerous. Further, when evacuating into the evacuation shelter, a ladder installed vertically is used, so that only a few people can enter the evacuation shelter at a time, and it takes time for a large number of people to complete the evacuation. Moreover, it is difficult for elderly people, children, persons with disabilities, sick people, etc. to use ladders.

  In order to solve these problems, the present invention has a structure that is installed underground and does not have a structure on the ground, and a large number of people, refugees such as elderly people, children, disabled people, sick people, etc. Provide a waterproof underground shelter where people can enter.

  In order to solve the above problems, a waterproof underground refuge according to the present invention is a sealed waterproof refuge installed under the ground surface for countermeasures against tsunami, flood damage, etc., and the upper surface of the refuge is It is formed in a planar shape, the evacuation site has an entrance door, an external confirmation hole and a lifting tool, the access door and the external confirmation hole have a sealing waterproof function, and the lifting tool is a slide during evacuation It is used in a shape.

  Further, the waterproof underground shelter avoids damage due to collision between the shelter and the drifting object when submerged in water due to the planar shape of the upper surface of the shelter, and the installed ground surface and the It is characterized by eliminating the step from the top of the shelter.

  In addition, the external confirmation hole installed in the waterproof underground refuge has a sealed waterproof function when closed, and when it is opened, sends out a camera for collecting information from the inside of the refuge, and as a vent It is characterized by using.

  In addition, a plurality of the waterproof underground shelters are installed adjacent to each other, pass through a door provided in the waterproof underground shelter, and can pass through the adjacent waterproof underground shelters. To do.

  The waterproof underground shelter is divided into a plurality of concrete parts, and is constructed by assembling the plurality of concrete parts below the ground surface of the installation site.

  The waterproof underground shelter according to the present invention is a hermetically sealed waterproof shelter that is installed in the basement and has no structure on the ground, so that water damage such as river dykes or dam breaks caused by typhoons, heavy rain, etc. Because it has a structure that is not affected by the impact of water loss or other objects when it is submerged in the event of a tsunami, there is no risk of damage to the equipment after evacuation. There is no impact on evacuees who evacuate to the evacuation center, and safe evacuation can be continued.

  The waterproof underground shelter is sealed and waterproof even if it is submerged in the water during a disaster, and does not flood inside. At this time, air conditioning machines and chemicals installed in the waterproof underground refuge can spend one day or more without taking in outside air and without suffocating. In addition, evacuees can safely stay inside the waterproof underground shelter until the disaster subsides with water, food, chairs, cots, toilets, etc. stored in the waterproof underground shelter.

  In the waterproof underground evacuation shelter, the lifting tool from the entrance to the floor has a slide shape, and a large number of refugees can enter the waterproof underground evacuation facility in a short time during evacuation. . In addition, elderly people, children, persons with disabilities, sick people, etc. who have difficulty in raising and lowering stairs and ladders can enter the room safely in a short time by using a slide.

  When confirming the surrounding situation from the inside of the waterproof underground refuge during a disaster, it can be confirmed by opening a sealed hole from the inside and taking a camera or the like out of the waterproof underground refuge. Since it is possible to check the surrounding situation with only the minimum opening / closing part, it is possible to collect external information while ensuring the safety of the internal refugees.

  In addition, even if the wreckage of the waterproof underground refuge drifts after the disaster and it is no longer possible to leave the waterproof underground refuge, the refugee can be rescued from the outside by the air conditioning machine, chemicals, and stockpile. You can spend it safely in the waterproof underground shelter until you are there.

  As an installation method, the waterproof underground shelter is divided into a plurality of concrete box-shaped parts (for example, PC box culvert: registered trademark) at a factory, and the concrete is placed in the ground of the installation site. The parts can be assembled and built side by side. Therefore, it is possible to manufacture a large amount at a low cost in a factory and construct it in a short time. Moreover, it is easy to produce the waterproof underground shelter of any size and any number of people by increasing or decreasing the number of concrete parts and changing the size.

  In addition, the waterproof underground shelter is installed in the ground and has a flat ceiling, so it is installed in the basement of open places such as roads, district parks, self-governing hall parking lots, school playgrounds, etc. can do. Since it can be installed near people, it is possible to evacuate to the waterproof underground evacuation shelter in a short time after the evacuation advisory is issued.

  The waterproof underground shelter can also be used as a living space for people who have lost their homes or the like as a shelter after a disaster.

  In addition, the waterproof underground evacuation shelter can be used as a disaster prevention warehouse and a stockpiling warehouse for disasters.

  In addition, a plurality of the waterproof underground shelters can be connected in the ground, a communication door can be provided, and the waterproof underground shelters can be used in the ground.

  In addition, the waterproof underground refuge can charge the battery in the waterproof underground refuge and use electrical devices by an external power source before and after a disaster.

1 is a side cross-sectional view of a waterproof underground shelter showing a first embodiment of the present invention. It is the top view seen from the upper part of the waterproof type underground refuge which shows the 1st Example of this invention. It is sectional drawing in the position of II of FIG. 4A is a cross-sectional view showing a state where the external observation hole and the waterproof lid are in close contact with each other, and FIG. 4B is a cross-sectional view showing a state where the external observation hole and the waterproof lid are separated from each other. FIG. 5 (A) is a side sectional view of a waterproof underground shelter showing a second embodiment of the present invention, and FIG. 5 (B) is a sectional view taken along the line II-II in FIG. 5 (A).

[First embodiment]
A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a side sectional view of a waterproof underground refuge according to the present invention, FIG. 2 is a plan view of a ground portion of the waterproof underground refuge according to the present invention, and FIG. 3 is a waterproof underground refuge according to the present invention. FIG. 4A is an enlarged cross-sectional view showing a state where the external observation hole and the waterproof lid are in close contact with each other, and FIG. 4B is an external observation hole. It is an expanded sectional view of the state where the waterproof lid was separated.

  As shown in FIG. 1, the waterproof underground shelter 1 is installed in the ground and constitutes a space surrounded by an outer wall 2. The outer wall 2 includes a ceiling portion 2a, a side wall portion 2b, and a floor portion 2c. The outer side (upper surface) of the ceiling part 2a has no protrusions and is formed in a flat surface. Moreover, the outer wall 2 is shape | molded with concrete. The construction method is to create a concrete box-shaped part in another place and divide it into a ring-cut state, dig a hole of the size of the waterproof underground shelter 1 in the installation place, and embed the concrete part The method of assembling is preferable in terms of construction accuracy, production period, and the like. A conventional construction method may be used in which concrete is poured directly into the installation location. The waterproof underground shelter 1 in the first embodiment has a depth of 3 m, a width of 9 m, and a ceiling height of 2.5 m, and can evacuate about 60 people.

  A portion in contact with the ground surface on the outer side (upper surface) of the ceiling portion 2a is a flat surface without protrusions. When projections such as entrances and vents are installed on the ceiling, if a tsunami or flood damage occurs, the projections are very likely to be damaged by water pressure and drifting objects. If it is damaged, water and drifting material may flow into the evacuation center from the damaged part, and there is a risk that the inside refugee may be at risk of life. Therefore, in the waterproof underground shelter 1 according to the present invention, no protrusions are installed to avoid breakage, and the ceiling is flat.

  The ceiling portion 2a is provided with one or more waterproof doors 3, a waterproof connector 5, and an external observation hole 6. The waterproof door 3 is an entrance to the waterproof underground shelter 1 from the outside (the ground). The opening / closing method may be any type such as a sliding door, a sliding door, etc., but because it is submerged in water due to a tsunami, flooding, etc., it has a structure that is waterproof and waterproof so that water does not enter the waterproof underground shelter 1. In addition, since a collision of drifting objects or a fire after a tsunami is also assumed, a door having an anti-shock and fire prevention function and a size that allows one person to enter and exit is suitable.

  The waterproof connector 5 is an outlet for connecting an external power source on the ground to the waterproof underground shelter 1. The waterproof connector 5 is installed at a position that does not protrude from the plane of the upper surface of the ceiling portion 2a, and has a waterproof function in consideration of being immersed in water. Further, when not in use, it is desirable to protect the waterproof connector 5 by combining it with a waterproof cover (not shown).

  Next, the external observation hole 6 and the waterproof lid 25 will be described with reference to FIG. FIG. 4A is a cross-sectional view showing a state in which the external observation hole 6 and the waterproof lid 25 are in close contact with each other. FIG. 4B is a cross-sectional view showing a state in which the external observation hole 6 and the waterproof lid 25 are separated from each other.

  The external observation hole 6 is a hole having a diameter of about 10 cm that penetrates the ceiling portion 2 a and communicates the outside with the inside of the waterproof underground shelter 1. The external observation hole 6 serves as a vent hole for the outside and the waterproof underground shelter 1 and is used for collecting information for observing the ground situation by exposing the external observation cylinder 29 to the outside. Have.

  A waterproof lid 25 is fitted into the external observation hole 6. The waterproof lid 25 is provided with a waterproof lid screw portion 26, and a waterproof lid grip portion 27 of about 2 m extends from the tip of the waterproof lid screw portion 26. An external observation hole screw portion 26 is provided inside the external observation hole 6. The external observation hole screw portion 26 is screwed to the waterproof lid screw portion 62 of the waterproof lid 25, so that the external observation hole 6 and the waterproof lid 25 are sealed. Has a waterproof function. When the waterproof lid 25 is closed, the waterproof lid 25 does not protrude from the ceiling portion 2a and is flat. The evacuees inside the waterproof underground shelter 1 can remove the waterproof lid 25 by separating the waterproof lid 25 from the external observation hole 6 by holding the waterproof lid handle 27 and rotating the waterproof lid 25.

  Since it is assumed that the waterproof underground shelter 1 will be submerged in the event of a tsunami or flood, the outer wall 2, the waterproof door 3, the waterproof connector 5 and the external observation hole 6 are hermetically sealed and waterproof. Prevent inundation into the interior space of evacuation center 1. In addition, the waterproof door 3, the waterproof connector 5, and the external observation hole 6 may be installed in a plurality of intervals because there is a risk that the wrecked object after the tsunami or flooding may be placed on top and cannot be opened and closed. desirable.

  Next, the facilities inside the waterproof underground shelter 1 will be described. The waterproof underground shelter 1 has an elevator 11 in the internal space, and stores food and daily necessities (not shown).

  The lifting tool 11 is installed at a position of about 50 cm directly below the waterproof door 3. The evacuees enter the waterproof underground evacuation site 1 through the waterproof door 3 which is the entrance on the ground, and descend to the floor 2c with the lifting tool 11. In the present invention, the lifting tool 11 is a staircase, and the staircase is covered with a flat cover (not shown), and the upper surface of the cover can be used as a slide. The refugee enters the waterproof underground refuge 1 using the cover as a slide when entering the evacuation room. By using the slide, a large number of people can be evacuated in a short time. After the evacuation of all members is completed, the cover is removed from the lifting tool 11 and used as a staircase. In addition, you may install the vertical ladder, the lift for wheelchairs, etc. separately.

  On the upper surface of the floor 2c of the waterproof underground shelter 1, stocks and water (food, bedding, etc.) of about 60 people can live for several days as food and daily necessities, and rest of the evacuees as equipment (not shown) Equipment such as chairs, cots, power supplies (batteries, manual generators, etc.), lighting, toilets, TVs, radios, monitors for TV cameras, and air conditioning equipment (not shown), oxygen cylinders, It has an air filter, an air purifier, and a carbon dioxide adsorbent.

  The storage place may install a storage shelf between the lifting tool 11 and the floor 2c, the space between the chair and the floor 2c, or along the side wall 2b. In addition, supplies and materials necessary for rebuilding life after a disaster may be stored.

[Installation location]
The waterproof underground refuge 1 according to the present invention is installed in the ground and the outside (upper surface) of the ceiling 2a is a flat surface, such as roads, district parks, self-governing hall parking lots, school playgrounds, etc. Can be installed in the basement of an open place. However, the installation of a building on the ground surface of the waterproof underground shelter 1 (the upper surface of the ceiling 2a) means that when the building is damaged due to a tsunami or flood, the debris is the doorway to the ground. This is not desirable because it may block.

  The waterproof underground shelter 1 can be easily manufactured by changing the design to an arbitrary size according to the area of the installation site. Since it can be installed in close proximity to people, evacuation can be evacuated in a short time after the evacuation advisory is issued, and it can provide peace of mind to local residents in daily life. Furthermore, if the waterproof underground evacuation site 1 is described in the evacuation map, local residents and people who are present in the vicinity at the time of a disaster can know the evacuation site, and can provide further security.

[Evacuation method]
When a tsunami or flood warning is issued, the evacuees enter the waterproof underground shelter 1 through the waterproof door 3 that is the entrance on the ground, and descend to the underground floor 2c with the elevator 11. At this time, the lifting tool 11 uses the slide-shaped cover, and the evacuee slides down to the floor 2c. When using stairs / ladders for evacuation, only a few people can enter the evacuation center at a time, and elderly people, children, people with disabilities, sick people, etc. may have difficulty descending the stairs / ladder. A large number of people will take time to complete the evacuation. Since the arrival speed of tsunami and flood is fast, it is necessary to evacuate in a minute and a second. Therefore, it is possible to quickly and safely condemn a large number of people by using a slide like during an emergency evacuation from a building or an airplane.

  The last evacuee closes the waterproof door 3. Further, the waterproof lid 25 of the external observation hole 6 is rotated by gripping the waterproof lid grip portion 27 so that the external observation hole screw portion 21 and the waterproof lid screw portion 26 are brought into close contact with each other. When the waterproof door 3 and the waterproof lid 25 are closed, the waterproof underground shelter 1 is completely sealed and waterproof, and even if the ceiling 2a sinks below the surface of the water, it can be safely evacuated without leaking water. Moreover, even if the soil around the waterproof underground shelter 1 is swollen and the side wall 2b touches the water, no water leaks.

  Evacuees spend their time in waterproof underground shelters 1 until disasters such as tsunamis and floods subside. At this time, in the waterproof underground shelter 1, the lighting, the air filter, and the air purifier can be operated comfortably by the power source.

  Further, the carbon dioxide adsorbent absorbs carbon dioxide generated from the breathing of refugees, supplies oxygen with the oxygen cylinder, and purifies the air with the air filter and the air purifier, thereby suffocating. Without spending time in the waterproof underground shelter 1 The oxygen cylinder and the carbon dioxide gas adsorbent need to be stored in quantities that allow about 60 people to survive for at least one day. The carbon dioxide adsorbent is a technique in which carbon dioxide is selectively adsorbed on an adsorbent such as zeolite, activated carbon, or alumina, and separated and recovered.

  When a sufficient amount of time has passed after the disaster and it seems to have calmed down, when confirming the situation on the ground, the refugee grasps and turns the waterproof lid handle portion 27 of the waterproof lid 25 and removes the waterproof lid 25 from the outside. Remove from the observation hole 6. A camera or microphone is installed at the tip of a long cylindrical external observation tube 29 with an L-shaped tip, and the camera image is projected on a television or monitor installed in the waterproof underground shelter 1. , Can check the external situation. Further, by removing the waterproof lid 25 from the external observation hole 6, outside air enters and the waterproof underground shelter 1 can be ventilated.

  If the external observation tube 29 determines that the ground condition is safe, the evacuees remove the cover of the lifting tool 11 and use it as a normal staircase, open the waterproof door 3 and go out to the ground. Evacuate to other shelters and facilities.

  However, if the safety on the ground cannot be confirmed, or if there are wreckage or debris on the ground of the waterproof underground shelter 1 and the waterproof lid 25 and the waterproof door 3 cannot be opened and closed, the waterproof underground shelter You can stay in 1 and use the stored food and daily necessities to safely wait for rescue from the outside.

  In addition, even if you leave the waterproof underground refuge 1, if the houses on the ground are destroyed and you need an evacuation shelter, you can use food and household items stored in the waterproof underground refuge 1 again. You can spend a period of time. At this time, if an external power source can be obtained, the electrical power source in the waterproof underground shelter 1 can be used with the external power source and the battery can be charged by connecting the external power source to the waterproof connector 5. . Moreover, ventilation can be performed sufficiently by opening the waterproof door 3 and the external observation hole 6.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to FIG. 5A is a side view of a plurality of connected waterproof underground shelters, and FIG. 5B is a cross-sectional plan view at the position II in FIG. 5A.

  The waterproof underground refuge 51, 61, 71 shown in FIG. 5 has the same structure as the waterproof underground refuge 1, and is independent and has the same function as an evacuation shelter. Contact doors 52a, 62a, 62b, and 72b are installed on the side walls of the waterproof underground shelters 51, 61, and 71, respectively. Like the waterproof door 3, the contact doors 52a, 62a, 62b, and 72b are completely sealed and have a structure that does not allow water to enter. A door is preferred. The waterproof underground shelters 51, 61, 71 can pass through the contact doors 52a, 62a, 62b, 72b, respectively, and can reciprocate between the waterproof underground shelters.

  Thus, it is possible to connect and use a plurality of waterproof underground shelters. For example, each waterproof underground refuge has a role, and is used as a waterproof underground refuge 51 for hospital rooms, a waterproof underground refuge 61 for meeting places, and a waterproof underground refuge 71 for general refugees. Is also possible.

  If a problem such as failure or plague occurs in one waterproof underground evacuation shelter, the communication door is closed and closed to restrict traffic to other waterproof underground evacuation shelters. It is possible to prevent the spread of damage to the waterproof underground shelter.

  This embodiment is suitable, for example, when a plurality of waterproof underground shelters are installed in the basement of a road or the like. Further, not only the connection in the longitudinal direction but also a plurality of connections in the short depth direction are possible. Depending on the installation location, the number and connection form can be arbitrarily installed.

  As described above, according to the waterproof underground shelter according to the present invention, the river embankment caused by typhoon, heavy rain, etc. is hermetically sealed waterproof and is installed underground and has no structure on the ground. The structure is not affected by water damage such as dam breaks or tsunamis, or when it is submerged in water when a tsunami occurs, and the impact of water loss or other impacts may cause damage to equipment after evacuation. Therefore, safe evacuation can be continued without affecting the evacuees.

  The waterproof underground shelter is sealed and waterproof even if it is submerged in the water during a disaster, and does not flood inside. At this time, air conditioning machines and chemicals installed in the waterproof underground refuge can spend one day or more without taking in outside air and without suffocating. In addition, evacuees can safely stay in the waterproof underground refuge until the disaster subsides with water, food, chairs, cots, toilets, etc. stored in the waterproof underground refuge.

  In the waterproof underground evacuation shelter, the lifting tool from the entrance to the floor has a slide shape, and a large number of refugees can enter the waterproof underground evacuation facility in a short time during evacuation. . In addition, elderly people, children, persons with disabilities, sick people, etc. who have difficulty in raising and lowering stairs and ladders can enter the room safely in a short time by using a slide.

  When confirming the surrounding situation from the inside of the waterproof underground refuge during a disaster, it can be confirmed by opening a sealed hole from the inside and taking a camera or the like out of the waterproof underground refuge. Since it is possible to check the surrounding situation with only the minimum opening / closing part, it is possible to collect external information while ensuring the safety of the internal refugees.

  In addition, even if the wreckage of the waterproof underground refuge drifts after the disaster and it is no longer possible to leave the waterproof underground refuge, the refugee can be rescued from the outside by the air conditioning machine, chemicals, and stockpile. You can spend it safely in the waterproof underground shelter until you are there.

  Further, as an installation method, the waterproof underground shelter is divided into a plurality of concrete box-shaped parts (for example, PC box culvert: registered trademark) at a factory, and the concrete is stored in the ground of the installation site. Parts can be assembled and built side by side. Therefore, it is possible to manufacture a large amount at a low cost in a factory and construct it in a short time. Moreover, it is easy to produce the waterproof underground shelter of any size and any number of people by increasing or decreasing the number of concrete parts and changing the size.

  In addition, the waterproof underground shelter is installed in the ground and has a flat ceiling, so it is installed in the basement of open places such as roads, district parks, self-governing hall parking lots, school playgrounds, etc. can do. Since it can be installed near people, it is possible to evacuate to the waterproof underground evacuation shelter in a short time after the evacuation advisory is issued.

  The waterproof underground shelter can also be used as a living space for people who have lost their homes or the like as a shelter after a disaster.

  In addition, the waterproof underground evacuation shelter can be used as a disaster prevention warehouse and a stockpiling warehouse for disasters.

  In addition, a plurality of the waterproof underground shelters can be connected in the ground, a communication door can be provided, and the waterproof underground shelters can be used in the ground.

  In addition, the waterproof underground refuge can charge the battery in the waterproof underground refuge and use electrical devices by an external power source before and after a disaster.

  The present invention can be embodied in many forms without departing from its essential characteristics. Therefore, it is needless to say that the above-described embodiment is exclusively for description and does not limit the present invention.

DESCRIPTION OF SYMBOLS 1 Waterproof type underground shelter 2 Outer wall 2a Ceiling part 2b Side wall part 2c Floor part 3 Waterproof door 5 Waterproof connector 6 External observation hole 11 Lifting tool (slide)
21 External observation hole screw portion 25 Waterproof lid 26 Waterproof lid screw portion 27 Waterproof lid handle portion 29 External observation cylinders 51, 61, 71 Waterproof underground shelters 52a, 62a, 62b, 72b Contact door

Claims (5)

A sealed waterproof shelter installed under the ground surface for flood and tsunami countermeasures,
The upper surface of the shelter is formed in a planar shape,
The evacuation shelter has an entrance door, an external confirmation hole and a lifting tool,
The entrance door and the external confirmation hole have a sealing waterproof function,
The waterproof underground shelter is characterized in that the lifting tool is used in a slide shape during evacuation. By the planar shape of the upper surface of the shelter,
Avoid damage caused by collision between the shelter and the drifting object when submerged in water,
The waterproof underground refuge according to claim 1, wherein a step between the installed ground surface and the upper surface of the refuge is eliminated. The external confirmation hole has a hermetic waterproof function when closed, and sends out a camera for collecting information from the inside of the refuge when opened and used as a vent. 2. Waterproof underground shelter as described in 2. The plurality of waterproof underground shelters are installed adjacent to each other, and pass through doors provided in the waterproof underground shelters so that they can pass through the adjacent waterproof underground shelters. The waterproof underground shelter according to any one of claims 1 to 3. 5. The waterproof underground shelter is divided into a plurality of concrete parts, and is constructed by assembling the plurality of concrete parts below the ground surface of the installation site. The waterproof underground shelter as described in any one of 1.

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