Company Company Information

Disaster prevention in underground shopping centers

In the event of a fire

The flowchart in the figure below is an easy-to-understand illustration of fire prevention measures and equipment. In the event of a fire, the detector automatically operates, and at the same time, the sprinkler equipment performs automatic watering and extinguishes while the smoke emitter operates. In addition, fire shutters (partly fire protection shutters) are closed, minimizing fires to prevent damage from becoming larger. We are working to improve and train facilities so that people in the underground shopping area can be quickly moved to a safe place through emergency broadcasts and evacuation guidance.

In the event of a fire such as a kitchen

Sensors are installed in the kitchen hood and in the connection between the hood and the duct, and when the inside of the hood reaches 180°C, fire prevention equipment (for fryers and ranges) work to prevent fires under the hood.
At the same time, the gas-linked shutoff valve works automatically to prevent secondary disaster from gas. In addition, a fire prevention Dunbar is installed at the connection of the duct main pipe, which operates at 180°C to prevent the spread of fire to the main pipe.

When a gas leak occurs

In the unlikely event of a gas leak, the gas leak detector installed at each store will be activated, an alarm will be issued, and at the same time, the disaster prevention center will be notified, and the security officer will immediately process it to the site. In addition, if necessary, Osaka Gas and the fire department will be notified by telephone, and the general public will be notified via emergency broadcast to evacuation guidance. Depending on the situation, the emergency shut-off valve is operated to stop gas supply in the underground shopping area and ensure safety.

In the event of a power outage

In the unlikely event that a power outage occurs, the emergency battery lights automatically and instantly turn on (average floor light intensity of 10 looks), and the emergency private power generation facility starts to start. After about 25 seconds, the start-up is completed, and the voltage is established, and after 10 seconds (about 35 seconds after the power outage occurs), 1/4 of the illuminance (150 to 200 looks) is secured compared to normal conditions. In addition, disaster prevention equipment such as fire shutters, fire extinguishing pumps, smoke exhausters, and drainage pumps in the event of a fire can be operated promptly by this in-house power generation.

When an earthquake occurs

It is said that the underground shopping mall is resistant to earthquakes. Even in the Great Hanshin-Awaji Earthquake, the underground shopping mall has been minor damage compared to other buildings. In the event of an earthquake, we will publicize that the underground shopping mall is safer than that of the ground, and evacuate in a platoon to the designated evacuation site by the guidance of security officers.
In addition to conducting various drills assuming an earthquake from normal times, we conduct inspections of equipment and equipment affected by the earthquake at any time.

In the event of a flood

In response to flooding from the ground, a water stoppageflood control method is used in conjunction with sandbags to prevent flooding. In addition, we cooperate with connecting buildings that share entrances and exits to prevent flooding in accordance with the flood control Activity Manual. Our employees and self-defense flood control members regularly conduct flood control training before the rainy season to prepare for flood damage.