EXPERIMENTAL STUDY ON POTENTIAL RISK IN HOUSE UNDER FLOOD INUNDATION

Abstract

 Large flood disaster occurred in Mabi-town, Kurashiki, Okayama Prefecture, due to Western Japan heavy rain in 2018.43 of 51 deaths were found on the first floor. In this study, to understand the potential risk of inundation in a house, we conducted a full-scale inundation experiments. Here, a full-sized room and a door were made in the water tank, and the door opening the furniture overturning/scattering, and the evacuation experiments were conducted. As a result, it was confirmed that the door could not be opened even if the water-level difference on both sides of the door was only 15-20 cm. The results of the furniture overturning/scattering experiments show that when the water level is high, the closet may fall down and there is a risk of injury and the evacuation passage may be blocked.