| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a construction method for considerably reducing an evacuation time to get to an evacuation facility for old people, children, handicapped persons, etc.SOLUTION: An underground shelter is fixed to a building concrete foundation 4. The underground shelter includes an escape entrance 6 thereabove and a shelter body 1 therebelow formed of boards of one or more kinds of non concrete fiber-reinforced plastic, carbon fiber, Kevlar fiber, polycarbonate concrete, or metal. The escape entrance 6 and a shelter body 1 are connected to each other through an escape hatch 5 and an escape tube 20.</p> |
