同時多発火災を想定した大規模延焼シミュレーションに基づく延焼危険性指標の提案と消防隊行動支援への活用

摘要

We have to consider the seriousness of each fire, which varies according to the location of fire, for reducing property damages in case of multiple fires break out simultaneously after a large earthquake. In this paper, we construct a fire-spread simulation model and propose two fire-spread indices('Fire-spread potential'and'Burnt-down potential')for each building based on simulation results. We demonstrate the effects of these indices on reducing the number of burnt-down buildings. Furthermore, we discuss the influence of imprecise information on the location of fires, and propose a method that supports firefighters to decide the destination based on the average Fire-spread potential around a reported location of fire.%大地震発生時の同時多発火災への対応は深刻な課題である。特に，現状の消防力を上回る出火件数が想定されている地域では，すべての火災を鎮圧できるとは限らない。焼失被害を低減するためには，火災現場の位置や防火·耐火性能等の建物属性を正確に把握し，大きな焼失被害が予想される火災を優先的に消火することが重要となる。