DAMAGE AND RESTORATION OF ROADS AND RAILWAY TO PROLONGED AND ENLARGED VOLCANIC DISASTER OF MT. FUGEN IN UNZEN

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  • Takahashi Kazuo
    社団法人 土木学会 長崎大学 工学部社会開発工学科
  • Fujii Makoto
    社団法人 土木学会 長崎大学大学院 工学研究科会開発工学専攻

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  • 長期化・大規模化した雲仙普賢岳の火山災害における道路・鉄道の被害と復旧
  • チョウキカ ダイキボカシタ ウンゼン フゲンダケ ノ カザン サイガイ ニ オ

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Description

Mt. Fugen in Unzen erupted on November 17th 1990 after 198 years of silence. The volcanic disaster of Mt. Fugen is prolonged and enlarged more than four years. Disaster prevention officials of roads and railway considered emergency and permanent restoration plans after debris flows and pyroclastic flows attacked their facilities. In this paper, emergency counterplan, damage and both temporary and permanent restoration plans of roads and railway systems to volcanic disaster of Mt. Unzen and their social affects are reported and discussed. Problems which now have to be solved as well as some lessons to be learned are also explained.

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