Study on debris flow behavior in alluvial fan area considering influence of structures: disaster prevention measures with effective maintenance
| Project/Area Number |
24710206
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Natural disaster science
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| Research Institution | Kyoto University |
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Principal Investigator |
NAKATANI Kana 京都大学, (連合)農学研究科(研究院), 助教 (80613801)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 土石流 / 扇状地 / 構造物 / 影響範囲 / 防災 / 家屋 / 道路 / シミュレーション / 破壊 / 実験 / 伊豆大島災害 |
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| Outline of Final Research Achievements |
In this study, we conducted disaster verification, model experiments, and numerical simulation to determine the influence of structures on alluvial fan area; such as houses, fences, and roads. From this study, we found that when houses exist, remarkable deposition occurred in upstream of the houses, and the flow direction changed around houses and along roads. Furthermore, we found that the arrangement of the debris flow torrent and structures on alluvial fan affect the influence area. We proposed a system that can examine the disaster prevention measures of the entire village in alluvial fan, and showed that method considering the structures is effective to examine the damage area and evacuation on debris flow hazards.
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Report
(4 results)
Research Products
(16 results)
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[Presentation] Case study of debris flow disaster scenario caused by torrential rain on Kiyomizu-dera, Kyoto, Japan; applying Hyper KANAKO system2014
Author(s)
Nakatani, K., Hayami, S., Satofuka, Y., Mizuyama, T.
Organizer
2014 International Debris Flow Workshop
Place of Presentation
Tainan, Taiwan
Year and Date
2014-10-02 – 2014-10-03
Related Report
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[Presentation] Characteristics of debris flows on volcanic island Izu Oshima, Tokyo, Japan, caused by Typhoon No. 26 in October 20132014
Author(s)
Nakatani, K., Imaizumi, F., Satofuka, Y., Mizuyama, T.
Organizer
Cities on Volcanoes 8
Place of Presentation
Yogyakarta, Indonesia
Year and Date
2014-09-09 – 2014-09-13
Related Report
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[Presentation] Study on influence of houses existence on debris flow flooding and deposition2012
Author(s)
Nakatani, K., Okuyama, Y., Hasegawa, Y., Satofuka, Y., Mizuyama, T.
Organizer
2012 International Debris-Flow Workshop
Place of Presentation
Celebrity Ruicheng Hotel, Chengdu, China
Related Report
