JP2019078150A - Shelter for disaster prevention and nuclear shelter capable of aiming significant cost down and swift installation by modifying container house to be prefabricated unit - Google Patents

Abstract

To provide a nuclear shelter with economical cost for aiming a reduction of a construction period while rather increasing a protective performance of radioactivity.SOLUTION: A new or a second hand container is used and is reinforced by a steel frame inside and is processed water-proof and rust-proof outside and form plywood for concrete or an aluminum frame mold is integrated by weld or a bolt nut. In addition, a unit or prefabrication process is provided that an entrance and an entrance for a protective door, a light ceiling interior using a lead plywood, an air purifier and its ventilation port, a simple toilet, a power generation and a power storage facility etc are installed at a safe work site. At work site, a hole for burying is dug, concrete necessary for reassuring of performance is poured into and is covered by the soil.SELECTED DRAWING: Figure 3

Description

The present invention achieves excellent cost of installation, transportability, and work safety while maintaining the necessary function and performance as a nuclear shelter, and achieves a significant cost reduction by shortening the construction period without the need for building verification, etc. A nuclear shelter with flexible extensibility.

The production and installation of the existing and existing nuclear shelters were also carried out as heavy goods transported to the site as superheavy materials were manufactured at other manufacturing sites as in the small household shelters (Fig. 1). Shipping costs were also high. Also, because of its weight, workers were always at risk during installation.

In addition, when it becomes a large shelter, it digs the ground on the site, forms a formwork using a lot of reinforcing bars, and it becomes a large scale construction work like an underground construction of a building (Fig. 2). In that case, it goes without saying that building verification and complicated procedures involving complex strength design and design are necessary, and it takes a considerable number of days (at least four and a half months) to start construction. In addition to the long construction period and high construction cost mentioned above, the more the facility can be reassured, the more the cost will be and it will be a huge sum.

As the national crisis calls for a nuclear missile issue in North Korea, the penetration rate of Japan's nuclear shelters is 0.01 to 0.02%, which is less than 1%. However, the nuclear shelter with regular performance under current crisis conditions is as large as only 6 mats (three tsubos) and at least 12 million yen, and the construction period is also current. It takes an average of 4 and a half months with only the permission to obtain the building verification, so it is not in a situation that can respond promptly to emergency. It is almost impossible for the general public to own it.
Based on the above situation, the present invention aims to shorten the construction period of the existing and existing nuclear shelters and bring about a drastic price reduction while the radiation protection performance is rather enhanced.

In order to solve these problems and drawbacks, prepare a large or small container suitable for new or used applications, and cover or paint the outside with a protective sheet with a waterproof and rustproof effect. Inside the steel frame for reinforcement is installed inside by welding or bolt and nut (Fig. 3), and the conventional control panel or aluminum formwork is integrally attached by welding or bolt and nut outside (Fig. 4-1). Doorway and door for protection door (Fig. 4-2), light roof interior using lead plywood, air purifier and its air vent, simple toilet, power generation / storage equipment etc. are unitized or prefabricated in a work place where it is easy to work Make. Also, attach a hanging ring to the body. As a result, if it digs up not only at the time of installation but also after burial, it becomes movable by heavy machinery, and construction confirmation is unnecessary, and the construction period is shortened significantly.

Up to this point, the main body has not been covered with concrete yet, and it is the weight of the container house and fixtures, so it can be transported to the site in the same way as the container and container house.

At the site, dig a hole to be buried and stored according to the size of the main body, and install it with a crane (Figure 5).

Once the installation is complete, pour concrete into the space between the control panel and container (space of about 20 cm) and the ceiling part (thickness of about 40 cm) provided on the outside of the container to secure two ports (Fig. 6) and vents. Cover with concrete to increase strength and protection. Pour concrete on site.

If the concrete gets dry, install the guard door (Fig. 7) of the entrance that was made separately, and perform the interior work such as the internal bed and storage. Then set up the stairs or passage (Figure 6) to the entrance and take back the soil.

Since this method uses a container to make it unitized and prefabricated, and it is buried at the site and poured in concrete, there is no problem of transporting heavy objects, and of course cost reduction, shortening of construction period and safety of construction and transportation It also solves the problems with equal weight.

The data show that the surrounding concrete is about 20 cm, the ceiling concrete is about 40 cm, and it is necessary to put a minimum of 80 cm or more of soil on it. Even if a nuclear explosion occurs near the shelter in this state, the room is protected by soil and concrete and will fit within 200 becquerels, and it is safer, easier and faster than ever before, and more people are nuclear shelters. Can be installed, and can protect the safety of more people.

This is the case when a single container is used, but the room can be expanded because the base of the frame is similar to that of the container house. In that case, cut the side or front and back of this container as shown in Fig. 8 and make holes for bolts in the remaining part of both, and reinforce both by sandwiching rubber and using iron plate on both sides to reinforce (Fig. 9) Tighten and connect with bolts and nuts to integrate them, and reinforce each inside with steel frame. By connecting two or more by the same construction method (Fig. 10), it is possible to make a shelter as wide as possible. Therefore, it is possible to protect not only individuals and their families but also the safety of people in the area.

Current concrete buried type nuclear shelter Rebar steel frame construction site of current reinforced concrete underground core shelter a. Container main body iron plate 1-8. H steel reinforced steel frame 1-2. Outer formwork 3. Container body 4. Container body entrance iron frame 5. Outer formwork reinforced iron pipe 6. Outer formwork reinforced iron pipe binding joint 7. Outer formwork and container body fixing bolt holes a. Width 20 cm or more b. Width 40 cm or more a. Entrance iron frame for explosion-proof door b. Steel frame for emergency exit explosion-proof door 1. Outer formwork 2. Container body 3. Outer formwork container fixing bolt 4. Outer formwork container fixing nut a. Container body b. Outer formwork 1. Crane suspension wire 2. Crane suspension ring 3. Steel reinforcement H steel for container reinforcement 4. Container burial hole a. Container shelter body b. Main passage from ground to underground c. Emergency passage from ground to underground d. Entrance explosion-proof door e. Emergency exit door a. Steel frame concrete explosion-proof door b. Steel door frame c. Steel frame-concrete explosion-proof door d. Steel door frame a. Container side surface b. Connection bolt hole 1. Bolt 2. Nut 3. Bolt 4. Nut a. Sheet metal for washers b. Container iron plate c. Rubber d. Iron plate for washers 1. Two container connection expansion diagram 2. 4 containers connected expansion a to d. Container body

Claims (3)

A new or used container is reinforced and integrated with the formwork to make it a unit shelter with the required performance and internal equipment as a nuclear shelter separately in a separate work place and transported to the installation site while being lightweight, to the burial site A core shelter that can achieve significant cost reduction and shortening of construction period by pouring concrete in and installing an entrance door, an air port, a simple up and down port, etc. The space expandability of the structure where concrete can be cast and manufactured in the field according to the same method as in [Claim 1] by cutting and reinforcing the side of the container or the necessary part, connecting the bonded part with bolts and nuts and spreading it up and down. Free nuclear shelter. It is possible to move with heavy equipment like the existing container house by installing a ring for suspension in a unit and a prefabricated shelter using a container, so there is no need for construction confirmation, and it is possible to move it even if it is buried. shelter.