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Probabilistic assessment of future slope failure risk considering the occurrence probability of extreme event

Research Project

Project/Area Number 16K01343
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Natural disaster / Disaster prevention science
Research Institution防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群)

Principal Investigator

Shinoda Masahiro  防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群), システム工学群, 准教授 (30462930)

Co-Investigator(Kenkyū-buntansha) 宮田 喜壽  防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群), システム工学群, 教授 (20532790)
野々山 栄人  防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群), システム工学群, 助教 (00624842)
Research Collaborator Kondo Kenichi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords斜面 / 異常気象 / 確率論的評価 / 斜面崩壊危険度 / 降雨作用 / 地震作用 / 熊本地震 / 安定解析 / 変形解析 / 地震 / 降雨 / 二次災害防止 / 土砂災害
Outline of Final Research Achievements

In this study, we conducted statistical analysis using observation data for extreme climate events such as rainfall and earthquake and performed a probabilistic evaluation of the acting force in slope failure. At the same time, we made a probabilistic evaluation of the resistance of the slope surface layer in the target area taking into consideration the dispersion of the ground. Next, the slope failure risk assessment method was built based on the assumed scenario where rainfall and earthquake effects can be considered simultaneously, and a slope failure risk assessment map was created. Based on the prepared slope failure risk assessment map, it is thought that it can be effectively used for estimating the slope failure site and damage scale in extreme climate event, planning the initial response survey, and preventing secondary disasters.

Academic Significance and Societal Importance of the Research Achievements

本研究では、異常気象という観点から作用力の発生確率を推定すること、詳細なDEMデータを用いて面的な斜面安定性と変形性を評価すること、確率論に基づいた将来の斜面崩壊危険度を提示すること、これらの要素技術を組み合わせ、斜面崩壊危険度評価法を構築することができる。提案する斜面崩壊危険度評価マップを作成することにより、異常気象が進行した場合の斜面の崩壊場所や被害規模の将来予測や、被害が発生した場合の初動調査の計画策定や二次災害の防止等に役立つことから、災害に強い国土形成のための有益な資料になると考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (14 results)

All 2019 2018 2017

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Regional landslide susceptibility following the 2016 Kumamoto earthquake using backcalculated geomaterial strength parameters2019

    • Author(s)
      Masahiro Shinoda and Yoshihisa Miyata
    • Journal Title

      Landslides

      Volume: 印刷中 Issue: 8 Pages: 1497-1516

    • DOI

      10.1007/s10346-019-01171-1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 降雨ハザードを用いた地震時の補強土壁の 確率論的リスク評価2018

    • Author(s)
      篠田昌弘,東野圭悟,久保哲也
    • Journal Title

      ジオシンセティックス論文集

      Volume: 33 Pages: 139-144

    • NAID

      130007644823

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 確率的方法と経験的方法による観測データの蓄積に伴う確率降水量の変化2018

    • Author(s)
      篠田昌弘,宮田喜壽
    • Journal Title

      土木学会論文集

      Volume: 74 Pages: 211-216

    • NAID

      130007757830

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] PSO-based stability analysis of unreinforced and reinforced soil slopes using non-circular slip surface2018

    • Author(s)
      Masahiro Shinoda and Yoshihisa Miyata
    • Journal Title

      Acta Geotechnica

      Volume: 印刷中 Issue: 3 Pages: 907-919

    • DOI

      10.1007/s11440-018-0678-x

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 広域的な地震時斜面崩壊危険度図の作成方法2018

    • Author(s)
      篠田昌弘,宮田喜壽,中村晋
    • Journal Title

      土木学会論文集

      Volume: 印刷中

    • NAID

      130006743005

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Regional landslide susceptibility following the mid NIIGATA prefecture earthquake in 2004 with NEWMARK’S sliding block analysis2017

    • Author(s)
      Masahiro SHINODA and Yoshihisa MIYATA
    • Journal Title

      Landslides

      Volume: 印刷中 Issue: 6 Pages: 1887-1899

    • DOI

      10.1007/s10346-017-0833-8

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Regional Landslide Susceptibility Following The 2016 Kumamoto Earthquake With Newmark’s Sliding Block Analysis2018

    • Author(s)
      Masahiro Shinoda
    • Organizer
      Geotechnical Earthquake Engieering and Soil Dynamics V
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Life cycle cost of geosynthetic-reinforced soil slopes subjected to an earthquake2018

    • Author(s)
      Masahiro Shinoda
    • Organizer
      11th International Conference on Geosynthetics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地震時残留変位量を指標とした広域的斜面崩壊危険度評価2018

    • Author(s)
      篠田昌弘,宮田喜壽
    • Organizer
      地盤工学研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 降雨と地震の影響を考慮した斜面の安定性評価2018

    • Author(s)
      北村陽,篠田昌弘,宮田喜壽
    • Organizer
      土木学会関東支部技術研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 降雨と地震の影響を考慮した斜面の安定性評価2018

    • Author(s)
      北村陽
    • Organizer
      土木学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Seismic Risk Evaluation With Specific Direction For Natural Slopes Over a Wide Area2017

    • Author(s)
      篠田昌弘
    • Organizer
      6th International Symposium on Geotechnical Safety and Risk
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Reliability-based seismic stability analysis of reinforced slopes with noncircular slip surface2017

    • Author(s)
      篠田昌弘
    • Organizer
      3rd International Conference on Performance-based Design in Earthquake Geotechnical Engineering
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 熊本地震による斜面の広域的崩壊危険度評価2017

    • Author(s)
      篠田昌弘
    • Organizer
      土木学会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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