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Establishment and sophistication of online data assimilation system of seepage analysis model based on field measurement data

Research Project

Project/Area Number 19K21089
Project/Area Number (Other) 18H05920 (2018)
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund (2019)
Single-year Grants (2018)
Review Section 0303:Civil engineering, social systems engineering, safety engineering, disaster prevention engineering, and related fields
Research InstitutionKagoshima University

Principal Investigator

Ito Shinichi  鹿児島大学, 理工学域工学系, 助教 (20825690)

Project Period (FY) 2018-08-24 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords斜面崩壊 / データ同化 / 浸透解析モデル / 土中水分量 / 現地計測データ / オンラインデータ同化
Outline of Research at the Start

研究計画の具体的な内容は以下の三つである。
1.サーバー上で適切なパラメータを推定できるオンラインデータ同化システムの開発
2.土の種類が異なる様々な斜面において計測されたデータを用いたデータ同化事例の拡充
3.蒸発散の影響を考慮したモデルを導入したデータ同化プログラムの開発
これらを行って,豪雨時の斜面崩壊発生に対して重要な土中水分量を予測できるシステムを構築する。

Outline of Final Research Achievements

This project tried to establish and sophisticate an online data assimilation system of seepage analysis model based on field measurement data. The established system could estimate the seepage analysis model in real-time while measuring soil moisture conditions. In the project, a new method estimating the seepage analysis model was proposed, and the proposed method could reproduce not only unsaturated infiltration behaviors but also rising or falling groundwater level.

Academic Significance and Societal Importance of the Research Achievements

豪雨時の斜面崩壊の発生には,土中水分量が大きく影響する。斜面崩壊による被害を軽減するためには,降雨に伴って変化する土中水分量を適切に再現・予測できる浸透解析モデルの推定が不可欠である。本研究では,土中水分量を現地斜面で計測しながら浸透解析モデルをリアルタイムに修正・更新するシステムを構築することができたため,これらの研究成果は,斜面崩壊の発生予測に寄与できる可能性があると考えられる。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • Research Products

    (15 results)

All 2020 2019 2018

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 1 results) Presentation (5 results)

  • [Journal Article] PROPOSAL OF THE METHOD ESTIMATING SEEPAGE ANALYSIS MODEL INCLUDING A BOUNDARY CONDITION USING MERGING PARTICLE FILTER2020

    • Author(s)
      伊藤真一,小田和広,小泉圭吾,西村美紀,檀上徹,酒匂一成
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)

      Volume: 76 Issue: 1 Pages: 52-66

    • DOI

      10.2208/jscejge.76.1_52

    • NAID

      130007800763

    • ISSN
      2185-6516
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of the Kita-Sako model to soil-water characteristic curves of bentonite/sand mixture2019

    • Author(s)
      Kazunari Sako, Shin Sato, Motoki Moriiwa, Masaaki Fukaya, Syuichi Yamamoto, Shinichi Ito, Ryosuke Kitamura
    • Journal Title

      Japanese Geotechnical Society Special Publication

      Volume: 7 Issue: 2 Pages: 179-184

    • DOI

      10.3208/jgssp.v07.027

    • NAID

      130007694782

    • ISSN
      2188-8027
    • Year and Date
      2019-04-30
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Method on Identification of Infiltration Characteristics of Unsaturated Decomposed Granite Soils2019

    • Author(s)
      Kazuhiro Oda, Shin-ichi Ito, and Keigo Koizumi
    • Journal Title

      Proceedings of the 7th International Symposium on Geotechnical Safety and Risk (ISGSR)

      Volume: 7 Pages: 655-660

    • DOI

      10.3850/978-981-11-2725-0-is7-5-cd

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] IMPROVEMENT OF INFINITE SLOPE METHOD CONSIDERED INFLUENCE ON PORE-WATER PRESSIRE IN UNSATURATED SOIL2019

    • Author(s)
      津山雅徳,酒匂一成,伊藤真一,北村良介
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 75 Issue: 2 Pages: I_371-I_378

    • DOI

      10.2208/jscejam.75.2_I_371

    • NAID

      130007795433

    • ISSN
      2185-4661
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Data assimilation of parallel tanks model based on measurement data of groundwater level on full-scale test2019

    • Author(s)
      Shinichi Ito, Toru Danjo, Tomohiro Ishizawa, Sayako Baba, and Kazunari Sako
    • Journal Title

      Proceedings of the Technical Forum on Mitigation of Geo-disasters in Asia

      Volume: 1 Pages: 148-151

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Availability of the particle filter methods on identification of soil hydraulic parameters based on field measurement2019

    • Author(s)
      Shinichi Ito, Kazuhiro Oda, and Keigo Koizumi
    • Journal Title

      Proceedings of the 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (16ARC)

      Volume: 16

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between quasi-saturated volumetric water content and slope deformation based on a model slope experiment2018

    • Author(s)
      櫻谷慶治,小泉圭吾,小田和広,伊藤真一,小松満
    • Journal Title

      Japanese Geotechnical Journal

      Volume: 13 Issue: 3 Pages: 183-192

    • DOI

      10.3208/jgs.13.183

    • NAID

      130007493786

    • ISSN
      1880-6341
    • Year and Date
      2018-09-30
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 融合粒子フィルタによって推定された浸透解析モデルの有用性の確率論的検証2018

    • Author(s)
      伊藤真一,小田和広,小泉圭吾,櫻谷慶治,酒匂一成
    • Journal Title

      第9回土砂災害に関するシンポジウム論文集

      Volume: 1 Pages: 49-54

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 安国寺裏斜面におけるデータ同化結果を活用した斜面崩壊に対する危険基準の提案2018

    • Author(s)
      伊藤真一,小田和広,小泉圭吾,酒匂一成
    • Journal Title

      Proceedings of Kansai Geo-Symposium 2018

      Volume: 1 Pages: 206-211

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between initial quasi-saturated volumetric water content and rainfall-induced slope deformation based on a model slope experiment2018

    • Author(s)
      Keigo Koizumi, Keiji Sakuradani, Kazuhiro Oda, Mitsuru Komatsu, Shinichi Ito
    • Journal Title

      Journal of Geo Engineering

      Volume: 13 Pages: 179-186

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] データ同化によって推定された浸透解析モデルを用いた地下水発生確率の算出2019

    • Author(s)
      伊藤真一
    • Organizer
      令和元年度土木学会全国大会第74回年次学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 境界条件を含む浸透解析モデルのデータ同化方法の提案2019

    • Author(s)
      伊藤真一
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 多様な土壌水分特性の推定に対する粒子フィルタの有用性2018

    • Author(s)
      伊藤真一,小田和広,小泉圭吾
    • Organizer
      平成30年度砂防学会研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 京都府綾部市安国寺裏斜面における現地計測結果を用いたデータ同化2018

    • Author(s)
      伊藤真一,小田和広,小泉圭吾,横川京香,鏡原聖史
    • Organizer
      第53回地盤工学研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 融合粒子フィルタによる土壌水分特性と体積含水率の事後分布推定2018

    • Author(s)
      伊藤真一,小田和広,小泉圭吾
    • Organizer
      土木学会第73回年次学術講演会
    • Related Report
      2018 Annual Research Report

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Published: 2018-08-27   Modified: 2024-03-26  

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