| 摘要 |
PROBLEM TO BE SOLVED: To provide a flood damage shelter having a structure difficult to turn over as compared to conventional type and capable of quickly recovering to an erect state even when it turns over.SOLUTION: A body part 10 has a predetermined length, and is formed so that a cross-sectional shape can be oval, and its center of gravity G is set at a position lower than the center of vertical direction of the body part 10 and higher than a center of buoyancy B in an erect state (state where bottom surface part 14 is positioned below water surface). Thus, even when the body part 10 inclines in a horizontal direction due to waves, a restoration force for restoring an original state is applied, and when the body part turns over to an inverted state due to large waves, the body part can be quickly restored to the erect state.SELECTED DRAWING: Figure 7 |
