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Examining mechanisms of long runout distances in rock-mass failure and its numerical model

Research Project

Project/Area Number 18681028
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Natural disaster science
Research InstitutionForestry and Forest Products Research Institute

Principal Investigator

OKADA Yasuhiko  Forestry and Forest Products Research Institute, 水土保全研究領域, 主任研究員 (50360376)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2006: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Keywords粒状体流れ / 岩塊崩落 / 長距離運動 / 数値モデル
Research Abstract

大きな災害をもたらす山地の岩盤崩落、落石の到達距離予測の研究を高度化することを目的に、岩塊群の崩落現象について大規模な物理実験と数値実験を行いました。その結果、流下する岩塊個数が多い流れほど運動中に岩塊同士が頻繁に衝突を繰りかえし、このために運動エネルギーが多く失われて流下距離が短くなることを明らかにしました。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (10 results)

All 2009 2008 2007

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (6 results)

  • [Journal Article] 岩塊崩落実験における岩塊個数と流下距離の関係について2009

    • Author(s)
      岡田康彦、内田一平、落合博貴、松浦純生
    • Journal Title

      日本地すべり学会誌 46(1)

      Pages: 9-18

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Rockfall run-out distances depending on volume in large-scale experiments2009

    • Author(s)
      Okada Y., Uchida I., Ochiai, H.
    • Journal Title

      Proceedings of the International Conference on Management of Landslide Hazard in the Asia-Pacific Region 1

      Pages: 482-488

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 岩塊崩落実験における岩塊個数と流下距離の関係について2009

    • Author(s)
      岡田康彦、内田一平、落合博貴、松浦純生
    • Journal Title

      日本地すべり学会誌 (印刷中)(掲載確定)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rockfall run-out distances depending on volume in large-scale experiments2008

    • Author(s)
      Yasuhiko OKADA, Ippei UCHIDA, Hirotaka OCHIAI
    • Journal Title

      Proceedings of the International Conference on Management of Landslide Hazard in the Asia-Pacific Region 1

      Pages: 482-488

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Presentation] 崩落岩塊群の流下運動に関する検討2009

    • Author(s)
      岡田康彦
    • Organizer
      砂防学会
    • Place of Presentation
      広島県広島市
    • Year and Date
      2009-05-28
    • Related Report
      2008 Final Research Report
  • [Presentation] Rockfall run-out distances depending on volume in large-scale experiments2008

    • Author(s)
      Yasuhiko OKADA, Ippei UCHIDA, Hirotaka OCHIAI
    • Organizer
      The International Conference on Management of Landslide Hazard in the Asia-Pacific Region
    • Place of Presentation
      宮城県仙台市
    • Year and Date
      2008-11-11
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 崩落岩塊群の流下距離と岩塊個数の関係2008

    • Author(s)
      岡田康彦、内田一平、落合博貴、松浦純生
    • Organizer
      日本地すべり学会
    • Place of Presentation
      神奈川県足柄下郡
    • Year and Date
      2008-08-28
    • Related Report
      2008 Final Research Report
  • [Presentation] 崩落岩塊群の流下距離と岩塊個数の関係2008

    • Author(s)
      岡田康彦、内田一平、落合博貴、松浦純生
    • Organizer
      社団法人日本地すべり学会
    • Place of Presentation
      神奈川県足柄下郡
    • Year and Date
      2008-08-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] 岩塊群の流下距離について2007

    • Author(s)
      岡田康彦、落合博貴、宮島弘行、内田一平
    • Organizer
      日本地すべり学会
    • Place of Presentation
      三重県四日市市
    • Year and Date
      2007-08-30
    • Related Report
      2008 Final Research Report
  • [Presentation] 岩塊群の流下距離について2007

    • Author(s)
      岡田康彦
    • Organizer
      社団法人日本地すべり学会
    • Place of Presentation
      三重県四日市市
    • Year and Date
      2007-08-30
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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