JP2012229594A - Tsunami shelter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tsunami shelter which does not hamper convenience for daily life, which makes construction costs low, and which can reliably protect human life from an incoming tsunami.SOLUTION: A tsunami shelter, which facilitates entrance and exist from the downside and the upper section of which is airtightly constituted, ensures safety without making daily life inconvenient or causing a person to fail to escape from an incoming tsunami.

Description

  The present invention relates to an apparatus for protecting human lives when a tsunami strikes.

  On a global scale, large earthquakes accompanied by large tsunamis often occur, but for individuals living in a specific area, the generation cycle (referred to as “mean time between failure” in terms of reliability engineering) MTBF) is known to be longer than the average lifetime. Therefore, it is difficult to live with a sense of tension at all times in preparation for a tsunami. For example, in preparation for a tsunami, when a place where the beach is more advantageous is moved to the mountains and unnecessary transportation costs are paid, if MTBF is applied to it, a huge loss will occur. It is also the same as moving only the residence to the mountains and paying unnecessary commuting time and transportation expenses, and about 30% of life is spent at work, so the risk is reduced by only 70%.

  On the other hand, in the mountains, there are dangers of the collapse of back hills and mountain tsunamis due to heavy rains and earthquakes, making them even more expensive than countermeasures for sea tsunamis.

  Therefore, there is no choice but to find the place of production and life on the seaside, but looking at the results of the tsunami damage, the strength members of reinforced concrete and steel structures remain, but the living space of humans has been washed away and has not remained. There are many.

  Due to the above background, residents need to evacuate during the tsunami. However, it is physically impossible for everyone including the elderly, caregivers and hospitalized patients, etc. to blame to the hill within the time until the arrival of the tsunami. In fact, many victims including healthy people are being sent out. . However, it is economically difficult to build a building that can withstand the entire tsunami in the seaside production and daily life.

  Furthermore, if a tsunami shelter design that withstands the entire building is a tsunami shelter, daily production and life become extremely inconvenient, and if the disadvantage is multiplied by MTBF, the loss becomes enormous.

  In addition, even if the entire building is designed to be a tsunami shelter, people and things need to come and go frequently for production and life, and because the tsunami MTBF is longer than the life of a person, It is also difficult to maintain and maintain the safety device so that it does not fail.

  Therefore, realistic tsunami shelters are required to have a forgetful design that does not cause any particular inconvenience or tension in daily production and life.

In order to solve such a problem, the present invention is to provide a tsunami shelter with an airtight upper part on a normal production or living space. However, the airtight portion may be provided with an airtight emergency escape lid or the like that normally does not open and close and an alarm sounds when opened.

  Therefore, in the event of a tsunami, you can easily evacuate to a tsunami shelter. And downstairs, everyday production and living spaces do not strongly block the passage of the tsunami. However, the tsunami MTBF is long, so the amount of damage per year is small.

  Convenience of daily life is not excluded, construction costs are low, and human life can be reliably protected when a tsunami strikes.

  It is a figure which shows the whole structure of the shelter for tsunami which concerns on embodiment of this invention.   It is detail drawing which shows the state at the time of the standby of a float valve.   It is detail drawing which shows the state at the time of the tsunami attack of the float valve.   It is a figure which shows the case where the top floor of a building is used as a shelter as another embodiment.   It is a figure which shows the case where a loft is used as a shelter as another Example.   It is a figure which shows the case where an attic is used as a shelter as another Example.   It is a figure which shows the case where a 4 pillar lift is utilized as another Example.   It is a figure which shows the case where a 4 pillar lift is provided in a pit as another Example.   It is a figure which shows the case where the parking lot of the 2nd floor of a building is used as a shelter as another Example.   It is a figure which shows the detail of the valuables lifting apparatus of the Example of FIG.   It is a figure which shows the detail of the water-resistant case of the Example of FIG.

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the apparatus of the present invention.
In the figure, reference numeral 1 denotes a building made of reinforced concrete or steel and having a strength capable of withstanding a tsunami, and 2 denotes a ground height. Accordingly, reference numeral 3 denotes a room on the first floor, which is normally used for production, residence, or a store in a store, and is provided with a door having a large opening as in 4 for easy access.

  There are cases where a shutter that automatically closes by a tsunami warning is provided outside the opening of 4, but the load of the tsunami even if closed due to a failure during a long-term MTBF, or even if closed It is assumed that it will not resist tsunamis because the building load may increase and the building may be damaged because the shutter has endured.

  A tsunami shelter 5 is connected to 3 via doors 6 and 7 and an airtight staircase 8. The tsunami shelter 5 and the staircase 8 are airtight. The doors 6 and 7 are also semi-hermetic. However, if their airtightness deteriorates due to secular change, or if they are forgotten to close when evacuating to a shelter, there is no risk of life.

  9 is an airtight cover of the emergency escape hole, so that if a fire breaks out near the door 7, it can be opened from the inside so that it can be escaped to a section 24 such as a passage on the second floor or a neighboring house. Yes. As for the means to open the lid, there are cases in which a transparent protective plate is removed and the lever is turned, as in the case of an emergency exit of a bus, or the red ax 10 is used to destroy the lid as seen in Western hotels. When a tsunami comes while the lid 9 is opened, the water surface reaches the upper end 11 of the escape hole, but a living space above it is secured. For fires near the door 7, there may be provided a sprinkler 12 that senses the flame of the fire and injects the digestive agent at a pinpoint aiming at the flame.

  13 is a bed, and if you go to bed here, you can protect the safety of life against a tsunami during a deep sleep. A personal computer 14 sends important data such as a digital album to the backup memory 15. Reference numeral 16 denotes a duct for discharging the air in the shelter 5 at a normal time, and exhausts the air from the louver 19 through the vertical tubes 17 and 18 to the outside. If the natural exhaust is insufficient, the fan 20 is used.

21 is a float valve, the details of which are shown in FIG. In the figure, 17 is the same as FIG. 1, the duct connected to the shelter, 18 is the duct connected to the louver 19, 21 is the valve, 22 is the float, the figure shows the normal time, the flow is lowered, the valve opens and the duct opens 17 and 18 are in communication.

  When the tsunami strikes and seawater enters from the hole 23, the float 22 rises and the valve 21 is closed as shown in FIG. 3, so the air in the shelter cannot escape. Even if the valve 21 does not close due to a failure, no serious malfunction occurs.

  The highest water level of the tsunami is temporary and moves to the next wave of the swell, but if the water level of the tsunami is higher than the ceiling of the shelter 5 for a certain period of time, and the airtight performance of the door 7 has deteriorated, If the user forgets to close the air, the air in the shelter may be compressed, and the seawater may rise up above the stairs 8. Therefore, even if seawater comes up to the floor of the shelter, the living space is secured, but the atmospheric pressure rises.

  In order to save fuel and relieve stress on the aircraft, international passenger planes take 30 minutes after takeoff, lower the pressure to an altitude equivalent to 1500 m, and return it to before landing. In this case, even if an adult has a clogged nose, the ears are burdened, so the heels are licked and the mouth is moved, but the child cannot understand the reason and cannot cope with it, making it difficult to cry. Therefore, even in this shelter, fluctuations in atmospheric pressure may become a problem when seawater enters the stairs. At that time, the atmospheric pressure in the room is adjusted by an electric or manual compressor 25.

  In the above description, 2 is the ground height and the shelter is the second floor. However, the present invention may be applied to higher floors where the surface of 2 is the second floor or more.

  FIG. 4 shows another embodiment. In the figure, reference numeral 1a shows a building made of reinforced concrete or steel and having a strength that can withstand a tsunami, and the top floor of the pill is a shelter. As in FIG. 1, 3a is a normal use space such as a house, and 5a is an airtight shelter. 6a is an entrance door, and when a tsunami strikes, the residents go up the airtight staircase 8a from the door 7a and evacuate to the shelter. On the other hand, residents in the vicinity go up to the first floor of the shelter by the outside staircase 26, open the airtight doors 27 and 6a and evacuate to the shelter.

  28 is an elevator shaft, and if there is no mechanical damage due to an earthquake, it carries a sick person in a wheelchair before the tsunami strikes. Reference numeral 29 denotes a lifting motor, which is switched to an emergency engine in the event of a power failure. 30 is an airtight door that can be manually opened and closed even in the event of a power failure, 31 is an airtight skirt, and statically blocks the water surface of the tsunami at a height of 32. If a tsunami dynamically passes through room 3a and forgets to close door 30, there is a risk of flooding on the floor of room 5a, but a living space is secured.

FIG. 5 shows another embodiment. In the figure, 1b shows a building made of reinforced concrete or steel and having a strength that can withstand a tsunami. Like FIG. 1, 3b is a normal use space such as a house, and 4b is its front door. And, with an emphasis on everyday scenery, it faces the sea side where the tsunami comes. 33 is a back window, and the upper part of each upper edge 34, 35 is airtight. , 36 is a loft, which is usually used as a bed. The iron grid 37 prevents falling due to an earthquake or tsunami during a deep sleep. In some cases, a transparent plastic plate is attached to 37 to form a double airtight shelter including the bottom plate 38 and the skirt portion 39. Reference numeral 40 denotes a waterproof lid, which interlocks with an earthquake vibration or tsunami warning, and pulls the rope 41 according to a mechanism (not shown) to automatically close the 40 even during a deep sleep. Reference numeral 42 denotes a lifting ladder, which is divided into a skirt portion, a lid portion, and a floor portion. 43 is an automatic shutter, which is automatically closed at the time of a tsunami like the lid 40. In some cases, slits are provided on the shutter surface to allow some water to pass through, reducing the water pressure of the tsunami and preventing damage to the shutter. Reference numeral 44 denotes a clothes-drying stand, which fixes a basket on the top to prevent the invasion of floating objects during the tsunami. 45 may also be an iron lattice and may be further stretched with a net or plastic plate. However, it is limited when they cause the danger of collapse to the building 1b.
If the tsunami does not come, it may be small, so it is dangerous to go out to the coast and see the situation, and the moment the door 4b is broken when the tsunami and floating objects collide, the head is covered with a futon, etc. Since it is necessary to be prepared, an outdoor camera box 46 with a wiper is provided and monitored by a monitor 47 in the shelter.

  FIG. 6 shows another embodiment, in which 5c is a tsunami shelter in the attic, and the left and right sides of the figure are the direction of the tsunami attack and the pulling wave. Reference numerals 48 and 49 are steel through pillars that support the shelter 5c. The normal living space 3c and below does not resist the tsunami more than a certain level, and as shown in the figure, the pillars 48 and 49 and the brazing iron rod 50 are left leaving. Yes. The brace 50 may apply pre-tension by inserting a turnbuckle in the middle. 48 and 49 are paired, and a minimum of two sets are provided in the front-rear direction of the figure, and a brace 50 may be provided between the pillars 49 in the front-rear direction. Not provided. 8c is an airtight skirt having a built-in ladder that leads from the floor 51 on the second floor to the shelter 5c, and is provided with an airtight door 7c. Furthermore, 8c is arranged so as to be a shadow of the pillar 48.49 in order to avoid the suspended matter of the tsunami, and its cross section is an ellipse like a bridge girder.

  The lower ends of the columns 48 and 49 are connected to the floor 52 on the first floor. Reference numeral 53 denotes a reinforced concrete or steel cloth foundation bonded to an underground foundation pile (not shown). 52 is slidable in the horizontal direction, and its horizontal position is regulated by a cable 56 having one end coupled to a pin 54 on 52 and the other end coupled to a pin 55 on 53. Yes. The cable 56 is also stretched in all directions except for the illustration, and regulates the position 52. An anti-vibration rubber (not shown) may be inserted between 52 and 53.

  Tsunamis are not just water currents, but debris from damaged houses and automobiles floating on the surface of water flow at a considerable speed, so collision engineering measures are necessary. Fishing boats need to be treated separately so that they do not flow into the land. However, since automobiles are used on land and on a daily basis, floating is inevitable. The cable 57 is a guard wire for an expressway, and as a result of carrying out an intense collision strike, it has the effect of absorbing a large collision energy and reducing the collision load by making a constant stroke in a state where the collision load is applied. is there. It also has the effect of moving away the suspended matter so that it does not hit the pillar. This is also known to be effective when stretched between the bow and the bridge to prevent the submarine from colliding with the bridge.

  If the cable 57 interferes with daily life, it is stored along the pillar 48 and the foundation 53, and only when preparing for a tsunami, it is tightened with an electric winch (not shown) or a manual crusher to the state shown in the figure. There is also a case. If you forget it, you can prevent the house from leaking.

  When the tsunami reaches the height of the shelter, the shelter 5c becomes a floating bag, and the whole house rises and tries to be washed away. On the other hand, the cables 58 provided mainly on the four sides recognize that the whole house is slightly lifted and reduce the shock while preventing the loss. In addition, admitting a slight lift also contributes to the relaxation of the bending moment applied to the lower end of the house due to seismic loads and suspended object collisions.

  An impact absorbing mechanism such as a close contact type coil spring or a hydraulic damper may be inserted in the middle of each cable.

  After the tsunami ends, jacks are inserted in each direction between 52 and 53 to correct the seating position of 52. Furthermore, the shelter is used as a temporary bedroom, and a blue sheet is stretched over pillars and braces to create a temporary housing. If the photovoltaic power generation 59 supplies electric power for lighting, heating, cooking, etc., the construction cost of a temporary house depending on the administration becomes unnecessary. The municipality is therefore worth subsidizing such a house.

  FIG. 7 shows another embodiment, which uses a four-post lift used for the maintenance of automobiles. The left and right sides of the figure show the directions of tsunami and pulling waves. 2d is the ground surface, and a beam 53d is embedded therein. The lower surface of 53d is coupled to an underground pile (not shown), lift columns 60 and 61 are coupled thereon, and an airtight cover 5d is coupled thereon to form a tsunami shelter. Reference numeral 62 denotes a four-post lift tread. A normal lift is open at the center to maintain the lower part of the automobile, but is closed and airtight in this lift. 62d shows a state where the tread plate is lowered for normal use as a garage, and the vehicle gets in using the inclined plate 63 corresponding to the thickness of the tread plate. Reference numeral 64 denotes two pillars having a width through which a car can pass, and is coupled to an upper horizontal beam 65 to form a gate shape. A hook 66 is provided at the center of the beam 65, and a hook 68 at the tip of a leaf spring 67 coupled to the center of 5d and a collision load reducing cable 69 are coupled. The lower end of the rear collision load reducing cable 70 is directly coupled to 53d. The figure shows a state in which the footboard is raised to the position 62 in response to the tsunami warning. At this time, the packing 63 bonded to the lower portion of 5d is sandwiched between 62 and 5d is used as an airtight chamber to prevent a tsunami from entering. Since the door packing of the automobile 71 also has airtightness, it has a double airtight effect.

  In the event of a major earthquake or its warning, the tread board gets into the car at the position of 62d to avoid the danger of collapse of the house, and is raised to the position of 62 before the earthquake is settled and a tsunami comes. Normally, a four-post lift uses a motor to rotate a hydraulic pump and pull a cable that is stretched through a hydraulic cylinder to lift the tread. In this device, power is drawn from the car battery and the motor is turned. Normally, a large motor is used to increase the efficiency of maintenance, but this device is in time even if it is raised more slowly, so a small motor is used so as not to put a burden on the car battery. If the battery happens to rise, start the engine and raise the lift in a charged state, stop the engine before it becomes airtight, or open the emergency escape hole 72 to enter the outside air. Even if it takes time for the tsunami to come after evacuation, or when another tsunami comes, look at the aircraft and open 72 to put in the outside air. When the electric system breaks down due to submergence or the like, the drive wheel 73 may be placed on the double roller 74 and hydraulic pressure may be generated by the output of the car, or the lift may be raised or lowered directly by a ball screw or the like. There are also cases where it is manually moved up and down. In the case of the manual type, a balance weight (not shown) may be used so that it can be moved lightly. If the weight of the car is not fixed, the balance weight may be heavier, and if the nail is removed, it may be lifted by the governor. 75 is a water bumper used for mitigating the collision of the bus, and protects the columns 61 and 60 from the collision of floating substances.

  In the case of the present embodiment, the 4-post lift, which is mass-produced for the maintenance of automobiles, is diverted, so that the construction cost is low and it fits in the existing parking space of each household. Furthermore, there are examples where the 4-post lift is still used as a parking space for a second car, and in that case, the cost dedicated to countermeasures against tsunamis can be further reduced. In some cases, a two-post lift is used.

  FIG. 8 shows another embodiment, and the solid line in the figure indicates a state of waiting for a tsunami. Reference numeral 60e denotes a four-post lift provided in a pit 76 dug in the ground 2e. The lower part is coupled to a base 53e, and an automobile 71e used as a shelter is on a lift tread 62e. A lower portion of the jack 77 is coupled to the tread board. An airtight skirt 39e of a shelter lid 79 is coupled to the upper end of the jack expansion / contraction section 78. The jack is placed behind the pillar so that it does not get in the way of the car. A packing 80 adhered to the lower surface of the lid 79 is strongly pressed against the outer peripheral protruding portion 81 of the pit to keep the pit 76 airtight. Even if the packing is damaged, the water level in the pit is stopped at the height of the lower end of the skirt 39e, so that a breathing space is secured. 82 is an escape tower when water remains on the ground surface for a long time and the lift breaks down even after the tsunami passes, and 57e is a cable for mitigating the impact load of floating substances. Reference numerals 83 and 84 denote double-tight airtight doors. If rubble is on the lid 84, it escapes from the side airtight door 85. The lift 60e may be a heavy load for large vehicle maintenance, and may be able to push the vehicle up against the weight of rubble deposited on the lid 79. A broken line indicates a state where the vehicle is normally used as a garage.

If the packing 81 is severely damaged and water is freely entered into the pit, 83 and 84 are opened, the water in the pit rapidly enters the skirt 39e. There is a case where it is necessary to secure breathing until escape by wearing a ball or a plastic bag. If the lower end of the skirt 39e is extended to the bottom of the pit, it is effective even when the packing 81 is damaged or the lid 79 is broken and cannot be lowered, and the space outside the vehicle can be used as a shelter. However, since it is necessary to raise the lid 79 higher in daily life indicated by a broken line, the stroke of the jack is insufficient, and measures such as lifting with a hoist may be required.

  FIG. 9 shows another embodiment. If 1f is a building that is not swept away by a tsunami, the second floor 5f is an airtight tsunami shelter. The slope 86 is provided in the building, and the inclination is set to 16 degrees or less so that the vehicle can enter the tsunami shelter 5f on the second floor from the road surface 2f on the first floor as in 71f. A shutter 87 is provided at the entrance of 5f for air conditioning or the like, but even if it breaks down, the function as a shelter is not affected. The space 3f on the first floor is used for efficient operations such as a factory or a store on the first floor everyday. If the second floor is also used as a parking lot, it can prevent the cars that are washed away by the tsunami from doing harm.

  The ducts 17 and 18 and the float valve 21 normally intake air into the second-floor room, but when a tsunami strikes, the valve 21 is closed and the air in the shelter 5f is discharged from 18 as shown in FIG. And prevent the intrusion of seawater into the shelter. 91 is a sealing plate made of a material such as paper, and normally does not allow air to pass through, but when it gets wet with a tsunami, it breaks easily and allows seawater to enter the water level at the lower end of the skirt 39f. Even if the valve 21 does not close due to a failure, the air flow between the 17 and 18 is blocked and the shelter is kept airtight. 88 is an exhaust port of the shelter, and when gasoline leaks due to a vehicle failure, the vaporized gasoline crawls the floor and is discharged outside the room through a duct 89 by natural convection. On the contrary, the louver 90 removes floating substances when the tsunami enters. When the tsunami reaches the water level at the lower end of the skirt 39f, the inside of the shelter becomes airtight, and further intrusion of seawater can be prevented.

  Based on past examples, only about half of the people were able to evacuate to the highlands, and many others were drowning on foot or by car in time. This shelter can accommodate residents in the vicinity. Because you don't have to travel far, traffic congestion is unlikely to occur, and even if it happens, you can leave the car and evacuate on foot. Workers on the first floor and nearby evacuees are accommodated in the shelter on the second floor using the staircase 8 shown in FIG. The elevator to the upper floor does not have an entrance on the second floor. When going to the second floor by an elevator, as shown at 28 in FIG. 4, an elevator at the shelter floor stop is used.

  There are many reports of tsunami warnings that evacuate to the shelter once, but return to collect valuables and suffer damage, so it is also necessary to safely lift valuables from within the shelter. Lifting port 95 is for lifting a machine tool etc. on the first floor in the shelter during the tsunami attack to reduce flood damage, 92 is an I beam coupled to the ceiling of the shelter, 93 is fixed to it A manual chain block or hoist, 94 is a lifting chain, and a hole 95 is provided in the floor below.

  FIG. 10 shows the details. In the figure, reference numeral 95 denotes a hole formed in the shelter floor, which is usually surrounded by a lid or handrail (not shown). 96 is an airtight skirt that holds the water level of the tsunami at its lower end. 97 is a particularly important and expensive work machine placed in the work floor on the first floor, to which a stainless steel cable 98 is attached. 98 is embedded in a groove below the floor as shown in the figure so that it does not interfere with daily work, and its upper end is coupled to a ring chain 101 inserted into a pile 100 provided on the floor of the second floor. ing. When the risk of tsunami increases, the ring 101 is pulled out of the pile and hung on the nail of the chain block as in 101f. The figure shows the state where the chain block is fully pulled up. At that time, the hook 104 of the second chain block 103 is hung on the lower ring 102 and pulled up to the full. At the time when the 103 side is in charge, the machine 97 reaches the second floor and is moved to the right side of the figure by the traversing mechanism 105 and lowered. The ring 101 is painted in rainbow colors in the order of priority for lifting, and is attached to the piles in order of priority. A guide roller 106 prevents the cable 98 from rubbing against the lower end of the skirt 96. 108 shows a case where only an electronic control device or the like that is heavily damaged when submerged is lifted. When the connector 109 is pulled out due to the lifting, the operating machine 110 enters the soft landing mode and stops from the second floor. The supplied power is cut off to prevent leakage due to tsunami.

  111 is a house for pets, so it may get wet a little, so if a tsunami really comes, throw away the remaining machines and preferentially collect them. Even in the state of being immersed in a tsunami after that, it is possible to lift the low priority machine without giving up and spray the rust inhibitor.

  As shown at 15 in FIG. 1, digital materials are stored in advance in the shelter, and original documents such as signed documents that are difficult to digitize are also stored in the shelter in advance. What is used is stored in a water resistant case 112 shown in FIG. Even if the door 114 is connected to the case through a hinge 113 so that it can be opened and closed, it is automatically opened by the on-site broadcast when a tsunami warning is received in the shelter. At the same time, an electromagnetic hook (not shown) is released, and it is automatically closed by a spring force that is always biased, and a notch is automatically applied. The shelter is used daily as a garage, so the tire tread wears out and the old tires that have become unusable due to wear indicators are filled with air and stored, a tsunami warning is issued, 114 closes, the notch In response to the reception of the signal, the air pressure in the tire is sent to the air pressure control tube 115 on the first floor via a pressure regulating valve (not shown). At this time, if the power supply is alive and dry high-pressure air is obtained, it may be used. The power supply of the parked car such as 71f in FIG. There are also cases where the compressor is supplied directly from a compressor, or the old tire is first filled after being supplied. 116 is a commercially available one-way valve attached to the rim of the tubeless tire, and pressurizes the inside of the hollow and airtight packing 117 to prevent the tsunami from entering the case 112. The pressure applied here is automatically controlled by calculating from the expected height of the tsunami warning. On the other hand, high-pressure air may be supplied from the tube 118 to apply pressure to the case 112 to counter the tsunami depth. Since the case 112 needs to be a high-pressure container that is not crushed by the water pressure depending on the water depth of the tsunami, there is no risk of rupture even if it is pressurized from the inside before the tsunami.

As another embodiment (not shown), the second floor parking lot shelter 5f shown in FIG. 9 is installed on the first basement floor, and the slope 86 on which the vehicle enters is once descended to the second basement floor, and then the ascending slope. In some cases, it is possible to go up to an airtight shelter on the first basement floor. In this way, you can evacuate safely against a tsunami that destroys ground objects. However, the problem is that after the tsunami ends, water and rubble accumulated in the underground slope are removed and escaped. One means for this is to provide the escape tower 82 in FIG. 8, and to push up the rubble on the tower with a jack 77 to eliminate it. After the tsunami, the interior of the reinforced concrete or steel building Since the skeleton remains even if washed away, the escape tower may be installed behind the skeleton. In addition, there may be a number of airtight doors that divide the submarine compartments, and an underground passage network that leads to a strong building or hill under the road. In addition, since the gas pipe uses a thin and strong iron pipe, it is strong against earthquakes, so there is also a method in which high pressure air is sent from a nearby strong building or hill with a thin pipe and returned to atmospheric pressure in the shelter. If an air pipe is provided in the underground passage, it can save space and provide an air supply network that is resistant to earthquake topography.

DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Ground, 3 ... Daily living space, 5 ... Tsunami shelter 6, 7 ... Airtight door, 8 ... Airtight staircase, 9 ... Emergency escape hole 21 ... float valve, 26 ... outer staircase, 28 ... elevator shaft 36 ... loft, 40 ... automatic lid, 46 outdoor camera, 47 ... monitor 5c ... Attic room, 57 ... Guard wire, 58 ... Lifting prevention wire 60, 61 ... 4-post lift, 5d ... Shelter, 71 ... Private car 74 ... Roller for taking out the power of the car, 75 ... water bumper, 77 ... jack 82 ... escape tower, 86 ... slope, 91 ... sealing plate,
93, 103 ... Chain block, 97 ... Valuables, 112 ... Water resistant case

Claims (1)

A tsunami shelter that is easy to enter and exit from the bottom and is airtight on the top.

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