| 摘要 |
PROBLEM TO BE SOLVED: To provide a tsunami shelter which is usable even airtightness is not so high.SOLUTION: A tsunami shelter S is a hollow structure which is an approximately spherical shape, oval shape, cube shape, or rectangular solid shape. The tsunami shelter S comprises: a tsunami shelter body 1 having a gate 10 at its apex; an opening/closing door 2 for opening and closing the gate 10; and plural concave stairs 11 disposed on an outside of the tsunami shelter body 1 and extending from a lower part of the tsunami shelter body 1 toward the opening/closing door 2. On the plural concave stairs 11, a rainwater passage 12 formed into a downward inclined form from an inlet 11a to a depth is provided respectively. A tip end of the downward inclined form is formed into a closing part 11b closed, and the rainwater passage 12 communicates to a bottom of the closing part 11b and the outside of the tsunami shelter body 1 and introduces rainwater stored in the bottom of the closing part 11b toward the outside of the tsunami shelter body 1. |
