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外部ハザードに対する崩壊熱除去機能のマージン評価手法の研究開発,17; 森林火災と雷の重畳事象のハザード曲線評価

Research and development of margin assessment methodology of decay heat removal function against external hazards, 17; Combination hazard curve evaluation of forest fire and thunder

岡野 靖; 山野 秀将   

Okano, Yasushi; Yamano, Hidemasa

森林火災のハザード評価手法及び事象進展評価手法の開発を行ってきた。森林火災と雷の重畳事象では、雷起因の森林火災発生頻度に加え、雷発生時の気象条件の森林火災強度への反映が重要となる。本報では、ロジックツリーにこれらの効果を取入れることで重畳事象のハザード曲線定量化が可能なことを示した。

For an evaluation of a combination hazard curve of forest fire and thunder, it is necessary to take into account not only the overlap occurrence frequency but also meteorological effect on a forest fire intensity. The logic tree of a forest fire hazard curve evaluation was utilized in this study for quantitative estimation of the hazard curve of the combination event of forest fire and thunder.

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