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Developing a predictive simulation of flood and inundation with sediment transport

Research Project

Project/Area Number 19K15105
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 22040:Hydroengineering-related
Research InstitutionKyoto University

Principal Investigator

Yamanoi Kazuki  京都大学, 防災研究所, 助教 (30806708)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords土砂災害 / 土石流 / HPC / 被害推定 / 確率ハザードマップ / 斜面崩壊 / 土砂・洪水氾濫 / 氾濫流 / 被災確率推定 / 洪水氾濫 / 予測シミュレーション / 降雨流出 / ロジスティック回帰分析 / 順序ロジスティック回帰 / 土砂生産 / 数値シミュレーション
Outline of Research at the Start

土砂災害と水災害の中間に分類できるような,斜面崩壊や土石流で生産された土砂が河床や河道周辺地形を動的に変化させることで,甚大な洪水氾濫が発生する現象が近年数多く報告されている.このような現象を対象とした,後追いでない予測型シミュレーションの確立と,これを用いた全国における発生危険度評価が本研究の目的である.本研究では,データ解析的手法による降雨・地形・地質データからの土砂生産量の空間分布推定手法の確立,土砂生産域から土砂輸送過程までの連続的解析の実現,および全国の小流域における発生条件の推定を実施する.

Outline of Final Research Achievements

To develop a method for predicting the affected area of the inundation, which contains a large amount of sediment, we first developed a simulation of a debris flow that can be run on a supercomputer. Next, a probabilistic estimation method of the initiation point of the debris flow was developed based on the topographical conditions. We conducted the simulations using the initiation point data as input to develop a predictive-type simulation. In addition, we developed a direct estimation method of sediment production based on LiDAR differential observation data and rainfall observation data. We also developed a method for instantaneously predicting the 3D damage information from satellite observation data by using the predicted data obtained in this research as training data for machine learning.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果により,土砂を含んだ氾濫現象の被害領域を,観測可能な地形データや降雨データを用いて予測するためのシミュレーション手法を開発した.この方法に基づいたリアルタイムの予測システムを構築することができれば,例えば豪雨が観測または予測されたとき,どこでどの程度の被害が発生するのかを,確率の空間分布として示すことができるようになると期待できる.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (14 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Predictive simulation of concurrent debris flows: How slope failure locations affect predicted damage2021

    • Author(s)
      Yamanoi Kazuki、Oishi Satoru、Kawaike Kenji、Nakagawa Hajime
    • Journal Title

      Journal of Flood Risk Management

      Volume: - Issue: 2

    • DOI

      10.1111/jfr3.12776

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Breaking Limits of Remote Sensing by Deep Learning From Simulated Data for Flood and Debris-Flow Mapping2020

    • Author(s)
      Yokoya Naoto、Yamanoi Kazuki、He Wei、Baier Gerald、Adriano Bruno、Miura Hiroyuki、Oishi Satoru
    • Journal Title

      IEEE Transactions on Geoscience and Remote Sensing

      Volume: - Pages: 1-15

    • DOI

      10.1109/tgrs.2020.3035469

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ストリームチューブに基づく地形分割を用いた斜面崩壊と土砂流出の統合シミュレーション2020

    • Author(s)
      山野井一輝, 堤大三, 藤田正治
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 76

    • NAID

      130008122696

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Treatment of debris flow initiation and development over a partially saturated riverbed2019

    • Author(s)
      Musumari, H., Nakagawa, H., Kawaike, K., Talchabhadel, R., & Yamanoi, K.
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

      Volume: 75, 2

    • NAID

      130007940166

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Development of probabilistic debris-flow hazard map considering the uncertainty of initiation points2023

    • Author(s)
      Kazuki Yamanoi, Satoru Oishi, Kenji Kawaike
    • Organizer
      ICFM9
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 広島県における複数回の災害データの統計解析に基づく土石流被害の確率的予測2022

    • Author(s)
      鹿倉佳央梨,山野井一輝,川池健司
    • Organizer
      砂防学会研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Numerical Simulation for Evaluating the Effect of Source Locations in Concurrent Debris-flow Disaster2021

    • Author(s)
      Kazuki YAMANOI, Satoru OISHI, Kenji KAWAIKE
    • Organizer
      AOGS Annual Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 土石流による地形変化と降雨流出・氾濫の予測型シミュレーション2021

    • Author(s)
      山野井一輝, 大石哲, 川池健司, 中川一
    • Organizer
      砂防学会研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 土石流による地形変化と降雨流出・氾濫の予測型シミュレーション2021

    • Author(s)
      山野井一輝,大石哲,川池健司,中川一
    • Organizer
      砂防学会研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] Numerical Simulation for Evaluating the Effect of Source Locations in Concurrent Debris-flow Disaster2021

    • Author(s)
      Kazuki Yamanoi, Satoru Oishi, and Kenji Kawaike
    • Organizer
      AOGS 2021 VIRTUAL
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Multi-case Simulation on Water- and Sediment-Related Disasters for Estimating the Uncertainty of Damage Prediction Due to Input Conditions2020

    • Author(s)
      Kazuki YAMANOI, Satoru OISHI, Kenji KAWAIKE, and Hajime NAKAGAWA
    • Organizer
      COMPSAFE
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 九州北部豪雨災害を対象としたストリームチューブ地形分割に基づく斜面崩壊-土石流統合モデルの適用2019

    • Author(s)
      山野井一輝,孝子倫図,堤大三,藤田正治
    • Organizer
      砂防学会研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 土砂災害警戒情報の高密度化に向けた土砂移動形態の分類と空間分布特性の把握2019

    • Author(s)
      和田孝志,山野井一輝,岩井優弥,三輪浩,藤田正治
    • Organizer
      砂防学会研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 平成29年九州北部豪雨における赤谷川流域での土砂・洪水氾濫プロセスのシミュレーション2019

    • Author(s)
      鈴木豪太,藤田正治,山野井一輝,坂井紀之,内田良始
    • Organizer
      砂防学会研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] Topotubeを利用した表層崩壊解析法の地震災害への適応2019

    • Author(s)
      中智昭,堤大三,山野井一輝
    • Organizer
      砂防学会研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] Watershed-scale simulation of rainfall-runoff, inundation and sediment transport affected by landslides and its application for prediction2019

    • Author(s)
      Kazuki YAMANOI, Satoru OISHI, Kenji KAWAIKE, and Hajime NAKAGAWA
    • Organizer
      AGU Fall Meeting
    • Related Report
      2019 Research-status Report
  • [Presentation] 土砂を含む洪水氾濫の予測に向けた土砂移動現象の生起確率を用いたシミュレーション手法の提案2019

    • Author(s)
      山野井一輝,大石哲,川池健司,中川一
    • Organizer
      日本自然災害学会学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] ストリームチューブによる地形分割を基にした表層崩壊解析手法の開発2019

    • Author(s)
      堤大三,孝子綸図,山野井一輝,藤田正治,中智昭
    • Organizer
      日本自然災害学会学術講演会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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