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Enhancement of long-term stability evaluation technique for anchor-reinforced large-scale landslide slope in Three Gorges reservoir area

Research Project

Project/Area Number 20KK0091
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 22:Civil engineering and related fields
Research InstitutionGifu University

Principal Investigator

YASHIMA Atsushi  岐阜大学, 工学部, 特任教授 (90144394)

Co-Investigator(Kenkyū-buntansha) 藤原 覚太  東海大学, 工学部, 助教 (40824925)
原 隆史  富山大学, 学術研究部都市デザイン学系, 教授 (90544990)
Project Period (FY) 2020-10-27 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2022: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2021: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywordsグラウンドアンカー / 地すべり / 現場計測 / 遠心載荷試験 / 動的数値解析 / 破壊確率 / 信頼性設計 / 振動法 / 信頼性解析 / 鋼管杭 / 数値解析 / アンカー / 動態観測
Outline of Research at the Start

巨大外力から斜面崩壊を防ぐためには、持続可能なモニタリングと安定性評価が必要である。本研究は、中国三峡ダム周辺の地すべり変動を対象に、この要求に応えるシステムを提案する。高密度・広範囲な地盤変動計測だけではなく、地すべり抑止のために設置された構造物の機能を評価し、斜面の長期安定性を力学的に評価する手法を提案する。同済大学、中国地質大学の実験設備を利用して、巨大外力作用時の地すべり抑止構造物の機能メカニズムを解明する。また、抑止工法として多用されるアンカー工と鋼管杭を対象に、高精度で安価な抑止機能計測システムの実用化と、得られた時系列データに基づく斜面安全性の確率論的アプローチ法を提案する。

Outline of Final Research Achievements

This study proposed a method for evaluating the long-term stability of slopes with landslide countermeasures.
1) Slope stability evaluation method based on microtremor measurement was proposed for piled anchor installed cut slope. 2) Tension evaluation method based on vibration method was established for anchored slope. 3) Centrifuge model test was conducted to clarify the destabilization process of anchor and pile installed cut slope during earthquake. 4) Application of reliability analysis was confirmed for stability of anchor and pile installed cut slope. The applicability of reliability analysis to the stability of anchored and piled cut slope was confirmed.

Academic Significance and Societal Importance of the Research Achievements

本研究は、地すべり抑止工による斜面の長期安定性評価手法を提案した。
1) アンカーと杭を施工した切土斜面について、常時の振動計測による斜面安定性評価手法を提案した。2) アンカー付き斜面において、振動法に基づく緊張力評価法を確立した。3) 遠心載荷実験により、アンカーと杭を施工した切土斜面の地震時不安定化プロセスを明らかにした。4) アンカーと杭を施工した切土斜面の安定性について、信頼性解析の適用性を確認した。

Report

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

    (51 results)

All 2023 2022 2021 2020 Other

All Journal Article (19 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 19 results,  Open Access: 14 results) Presentation (29 results) (of which Int'l Joint Research: 9 results,  Invited: 5 results) Book (1 results) Remarks (1 results) Funded Workshop (1 results)

  • [Journal Article] A modified deformation coordination model for calculating the internal force of anchored piles2023

    • Author(s)
      Huang Yu、Fu Boyu、Guo Zhen、Yashima Atsushi
    • Journal Title

      Soils and Foundations

      Volume: 63 Issue: 2 Pages: 101283-101283

    • DOI

      10.1016/j.sandf.2023.101283

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Case-Studies of Vibration Method to Evaluate Residual Tensile Force of Ground Anchors2023

    • Author(s)
      OGAWA Naoto, NIIBE Takamasa, SAITO Hideki, YAMAZAKI Mitsuru, YASHIMA Atsushi
    • Journal Title

      Proceedings of CREST2023

      Volume: 1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Case-Studies of Vibration Method to Evaluate Residual Tensile Force of Ground Anchors2023

    • Author(s)
      OGAWA Naoto, NIIBE Takamasa, SAITO Hideki, YAMAZAKI Mitsuru, and YASHIMA Atsushi
    • Journal Title

      Proceedings of CREST2023

      Volume: 1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EFFICIENT SAFTY ASSESSMENT OF EXPRESSWAY SLOPE REINFORCED BY GROUND ANCHORS BASED ON RESIDUAL TENSILE LOAD EVALUATED BY VIBRATION METHOD2023

    • Author(s)
      Mitsuru Yamazaki, Takashi Kitamura, Hideki Saito, Naoto Ogawa, Takamasa Niibe, Atsushi Yashima
    • Journal Title

      Proceedings of PIARC2023 XXVIIth World Road Congress

      Volume: 1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multi-objective optimization design of pile-anchor structures for slopes based on reliability theory considering the spatial variability of soil properties2022

    • Author(s)
      Huang Yu、He Zhengying、Yashima Atsushi、Chen Zhiyi、Li Chunxiang
    • Journal Title

      Computers and Geotechnics

      Volume: 147 Pages: 104751-104751

    • DOI

      10.1016/j.compgeo.2022.104751

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Failure evolution process of pile-anchor reinforced rock slope based on centrifuge shaking table tests2022

    • Author(s)
      Xu Xi、Huang Yu、Yashima Atsushi、Du Xiuli
    • Journal Title

      Engineering Geology

      Volume: 311 Pages: 106920-106920

    • DOI

      10.1016/j.enggeo.2022.106920

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Shaking table tests on slope reinforced by anchored piles under random earthquake ground motions2022

    • Author(s)
      Hu Hongqiang、Huang Yu、Zhao Liuyuan、Xiong Min
    • Journal Title

      Acta Geotechnica

      Volume: 17 Issue: 9 Pages: 4113-4130

    • DOI

      10.1007/s11440-022-01525-5

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 振動によるグラウンドアンカー緊張力の測定方法の研究開発2022

    • Author(s)
      山崎 充・斎藤秀樹・八嶋 厚
    • Journal Title

      高速道路と自動車

      Volume: 65 Pages: 11-14

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] ESTIMATION OF GROUND ANCHOR RESIDUAL TENSION BY VIBRATION METHOD2021

    • Author(s)
      SAITO Hideki、YAMAZAKI Mitsuru、YASHIMA Atsushi、NAWA Kazuki、AOIKE Kunio、SONE Yoshinori
    • Journal Title

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

      Volume: 77 Issue: 3 Pages: 213-232

    • DOI

      10.2208/jscejge.77.3_213

    • NAID

      130008066227

    • ISSN
      2185-6516
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Parametric study of structural parameters affecting seismic stability in slopes reinforced by pile-anchor structures2021

    • Author(s)
      Xu Xi、Huang Yu
    • Journal Title

      Soil Dynamics and Earthquake Engineering

      Volume: 147 Pages: 106789-106789

    • DOI

      10.1016/j.soildyn.2021.106789

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recurrent neural networks for complicated seismic dynamic response prediction of a slope system2021

    • Author(s)
      Huang Yu、Han Xu、Zhao Liuyuan
    • Journal Title

      Engineering Geology

      Volume: 289 Pages: 106198-106198

    • DOI

      10.1016/j.enggeo.2021.106198

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of near-fault ground motions on dynamic response of slopes based on shaking table model tests2021

    • Author(s)
      Bao Yangjuan、Huang Yu、Zhu Chongqiang
    • Journal Title

      Soil Dynamics and Earthquake Engineering

      Volume: 149 Pages: 106869-106869

    • DOI

      10.1016/j.soildyn.2021.106869

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of seismic behavior of slope reinforced by anchored pile structures using shaking table tests2021

    • Author(s)
      Hu Hongqiang、Huang Yu、Xiong Min、Zhao Liuyuan
    • Journal Title

      Soil Dynamics and Earthquake Engineering

      Volume: 150 Pages: 106900-106900

    • DOI

      10.1016/j.soildyn.2021.106900

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Srtability analysis of rainfall-triggered toe-cut slopes and effectiveness evaluation of pile-anchor structures2021

    • Author(s)
      Xu Xi, Aing Yuanchuang, Guo Zhen, Huang Yu
    • Journal Title

      Journal of Earth Science

      Volume: 32 Pages: 1104-1112

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Ground Anchor Residual Tension by Vibration Method2021

    • Author(s)
      K. Nawa, A. Yashima, Y. Murata, K. Kariya, H. Saito, K. Aoike, Y. Sone and M. Yamazaki
    • Journal Title

      Proc. 1st Int. Sympo. on Construction Resources for Environmentally Sustainable Technologies

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Parametric study of structural parameters affecting seismic stability in slopes reinforced by pile-anchor structures2021

    • Author(s)
      X. Xu and Y. Huang
    • Journal Title

      Soil Dynamics and Earthquake Engineering

      Volume: 掲載確定

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Numerical performance assessment of slope reinforcement using a pile-anchor structure under seismic loading2020

    • Author(s)
      Huang Yu、Xu Xi、Mao Wuwei
    • Journal Title

      Soil Dynamics and Earthquake Engineering

      Volume: 129 Pages: 1-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Probabilistic Seismic-Stability Analysis of Slopes Considering the Coupling Effect of Random Ground Motions and Spatially-Variable Soil Properties2020

    • Author(s)
      H. Q. Hu, Y. Huang and L. Y. Zhao
    • Journal Title

      Natural Hazards Review

      Volume: 21

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Centrifuge modeling of seismic response and failure mode of a slope reinforced by a pile-anchor structure2020

    • Author(s)
      Y. Huang, X. Xu, J. Liu and W. Mao
    • Journal Title

      Soil Dynamics and Earthquake Engineering

      Volume: 131 Pages: 1-11

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Safety assessment of highway tunnel by newly developed on-site inspection2023

    • Author(s)
      Yashima Atsushi, Murata Yoshinobu, Yamazaki Mitsuru, Saito Hideki
    • Organizer
      The International Forum on Resilience of Critical Infrastructure Systems
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 振動を用いたグラウンドアンカー緊張力の測定-複数鋼線を有するアンカーへの適用-2023

    • Author(s)
      斎藤秀樹・新部貴理・小川直人・山崎 充・清水光亮・八嶋 厚
    • Organizer
      第58回地盤工学研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 振動を用いたラウンドアンカー緊張力の測定 -リフトオフ試験との比較による現場への適用性検証-2023

    • Author(s)
      山崎充・北村崇広・斎藤秀樹・新部貴理・ 小川直人・八嶋厚
    • Organizer
      第58回地盤工学研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 斜面アンカー工の補助部材に関する2つの提案2023

    • Author(s)
      藤原覚太・Enayat Mallyar・干場奨太
    • Organizer
      第58回地盤工学研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 振動法によるグラウンドアンカー緊張力測定手法の実物大模型実験による検証2023

    • Author(s)
      新部貴理・斎藤秀樹・小川直人・山崎 充・清水光亮・八嶋 厚
    • Organizer
      土木学会第78回年次学術講演会概要集
    • Related Report
      2022 Annual Research Report
  • [Presentation] リフトオフ試験との比較に基づく 振動法によるグラウンドアンカー緊張力測定手法の適用性検証2023

    • Author(s)
      山崎充・北村崇広・斎藤秀樹・新部貴理・ 小川直人・八嶋厚
    • Organizer
      土木学会第78回年次学術講演会概要集
    • Related Report
      2022 Annual Research Report
  • [Presentation] 振動を用いたグラウンドアンカー残存緊張力非破壊測定方法の実用化(1)-アンカーの自由長部の鋼材の曲げ剛性が固有振動周波数に及ぼす影響-2022

    • Author(s)
      斎藤秀樹・山崎 充・八嶋 厚・小川直人・新部貴理
    • Organizer
      第57回地盤工学研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] パイプを併用した鉄筋挿入工に関する数値解析2022

    • Author(s)
      藤原覚太・Enayat Mallyar
    • Organizer
      第57回地盤工学研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 振動法によるグラウンドアンカー緊張力測定の現場実証実験2022

    • Author(s)
      斎藤秀樹・山崎 充・八嶋 厚・小川直人・新部貴理
    • Organizer
      土木学会第77回年次学術講演会概要集
    • Related Report
      2022 Annual Research Report
  • [Presentation] パイプを併用した鉄筋挿入工に関する模型実験2022

    • Author(s)
      藤原覚太・Enayat Mallyar
    • Organizer
      土木学会第77回年次学術講演会概要集
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ground-anchored slope stability based on variation of tensile forces acting on ground-anchors2022

    • Author(s)
      Hara Takashi, Tatta Naoki, Yashima Atsushi
    • Organizer
      The 3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on reinforcement insertion work with a circular pile to prevent slope failure2022

    • Author(s)
      Fujiwara Kakuta, Enayat Mallyar
    • Organizer
      The 3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Stability assessment on expressway embankments by automatic survey and evaluation system2022

    • Author(s)
      Yashima Atsushi, Murata Yoshinobu, Kariya Keizo, Okamura Takuro
    • Organizer
      The 3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Challenge to Health Monitoring of Road Embankment Slope2022

    • Author(s)
      Yashima Atsushi, Murata Yoshinobu, Nakashima Kosuke
    • Organizer
      The 2nd Workshop on Geophysical Aspects of Smart Cities
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Challenge to Health Monitoring of Road Embankment Slope2022

    • Author(s)
      Yashima Atsushi, Murata Yoshinobu, Nakashima Kosuke
    • Organizer
      3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Ground-anchored slope stability based on variation of tensile forces acting on ground-anchors2022

    • Author(s)
      Hara Takashi, Tatta Naoki, Yashima Atsushi
    • Organizer
      3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Study on reinforcement insertion work with circular pile against slope failure2022

    • Author(s)
      Fujuwara kakuta, Mallyar Enayat
    • Organizer
      3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Reliability-based optimization design of stabilizing piles in slope dynamic system under random seismic excitation2022

    • Author(s)
      He Zhengying, Chen Zhiyi, Li Chunxiang, Yashima Atsushi
    • Organizer
      3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 複数の鋼線を有するグラウンドアンカーの緊張力のノンリフト試験2021

    • Author(s)
      斎藤秀樹・山崎 充・八嶋 厚・名波一輝・小島杏介・小河原敬徳
    • Organizer
      物理探査学会第144回(2021年度春季)学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 斜面アンカー工の補助部材に関する 2 つの提案2021

    • Author(s)
      藤原覚太・Mallyar Enayat・干場奨太
    • Organizer
      第56回地盤工学研究発表
    • Related Report
      2021 Research-status Report
  • [Presentation] 振動を用いたグラウンドアンカー緊張力の非破壊測定-くさび定着 タイプアンカーへの適用-2021

    • Author(s)
      斎藤秀樹・山崎 充・八嶋 厚・名波一輝・小島杏介・小河原敬徳
    • Organizer
      第56回地盤工学研究発表
    • Related Report
      2021 Research-status Report
  • [Presentation] 斜面安定対策工に関する最新動向分析と今後の方向性について2021

    • Author(s)
      山口 充・藤原覚太・小泉圭吾・笠間清伸・北爪貴史
    • Organizer
      土木学会第76回年次学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 振動を用いたグラウンドアンカー緊張力測定方法のくさび定着タイプ アンカーへの適用2021

    • Author(s)
      斎藤秀樹・山崎 充・八嶋 厚・名波一輝・小島杏介・小河原敬徳
    • Organizer
      土木学会第76回年次学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 振動を用いたグラウンドアンカー緊張力測定方法のくさび定着タイプアンカーへの適用2021

    • Author(s)
      斎藤秀樹・山崎充・八嶋厚・名波一輝・小島杏介・小笠原敬徳
    • Organizer
      地盤工学会中部支部
    • Related Report
      2020 Research-status Report
  • [Presentation] 振動を用いたグラウンドアンカー残存緊張力の現場計測 ―トンネル内重交通および過緊張条件下における挑戦―2021

    • Author(s)
      八嶋厚・名波一輝・小島杏介・斎藤秀樹・小笠原敬徳・山崎充
    • Organizer
      地盤工学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 不安定な斜面を守る-グラウンドアンカー残存緊張力を簡便に知る試み-2021

    • Author(s)
      八嶋 厚
    • Organizer
      地盤工学会東北支部
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 複数の鋼線を有するグラウンドアンカーの緊張力のノンリフト試験2021

    • Author(s)
      斎藤秀樹・山崎充・八嶋厚・名波一輝・小島杏介・小笠原敬徳
    • Organizer
      物理探査学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 斜面アンカー工の補助部材に関する 2 つの提案2021

    • Author(s)
      藤原覚太・Enayat Mallyar・干場奨太
    • Organizer
      地盤工学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 斜面安定対策工に関する開発動向と今後の方向性について2021

    • Author(s)
      山口 充・藤原覚太・小泉圭吾・笠間清伸・北爪貴史史
    • Organizer
      地盤工学会
    • Related Report
      2020 Research-status Report
  • [Book] Social Infrastructure Maintenance Notebook2021

    • Author(s)
      Yashima Atsushi, Huang Yu
    • Total Pages
      141
    • Publisher
      Springer
    • ISBN
      9789811588280
    • Related Report
      2021 Research-status Report
  • [Remarks] ISRSS-SENDAI 2022

    • URL

      https://isrss-sendai.org/

    • Related Report
      2021 Research-status Report
  • [Funded Workshop] 3rd International Symposium on Risk Assessment and Sustainable Stability Design of Slopes2022

    • Related Report
      2021 Research-status Report

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Published: 2020-10-29   Modified: 2024-01-30  

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