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Development of a new self-healing soil improvement technology based on failure mechanism in micro-scale

Research Project

Project/Area Number 20K04696
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 22030:Geotechnical engineering-related
Research InstitutionNational Institute of Maritime, Port and Aviation Technology

Principal Investigator

Takano Daiki  国立研究開発法人海上・港湾・航空技術研究所, 港湾空港技術研究所, グループ長 (80626218)

Co-Investigator(Kenkyū-buntansha) 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, 准教授 (00624842)
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)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords固化処理土 / 可視化 / 微生物固化 / X線CT / セメント改良土 / 微生物 / 強度回復 / 改良土 / ウレアーゼ / 地盤改良 / 劣化 / 粒状体 / 自己修復
Outline of Research at the Start

本研究は,改良土の長寿命化を目指し,内部破壊メカニズムを考慮した自己修復機能を有する改良土の補強方法の提案を行うことを目的とする.具体的には,改良土の内部構造のばらつきに着目し,不均質性がマクロな変形・破壊に寄与する影響因子の包括的評価を行う.さらに,改良土が有する破壊に対する弱点を効率的に克服かつそれを修復する機能を付与する補強手法を提案し,土構造物の長寿命化に資することを目的とする.

Outline of Final Research Achievements

Improved soils that have failed due to external factors are generally considered to have lost their function and are completely rebuilt. In this case, control and repair from the early stages of failure and reinforcement with ductile materials to compensate for brittle properties enable effective inspection and repair, leading to a longer service life of the soil structure.In this context, it is necessary to clarify the strength properties and strength recovery characteristics of cement modified soil with self-healing function. In this study, as a basic research to solve this academic problem, cement modified clay with self-healing function was prepared, and loading tests and laboratory model tests were conducted to investigate its strength properties and strength recovery characteristics.

Academic Significance and Societal Importance of the Research Achievements

本研究は改良土が有する破壊に対する弱点を効率的に克服かつそれを修復する機能を付与する補強手法を提案し,土構造物の長寿命化に資することを目的としている.一旦,外的要因により破壊に至った改良土はその機能を失ったとみなされ,全面的に再構築されることが一般的である.この際,破壊の初期段階から制御や修復を行い,脆性的な性質を補う延性的な材料へと補強することが効果的な検査・補修を可能とし,土構造物の長寿命化へとつながる.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022 2021 2020

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Electrochemical perspective on the applicability of electroosmosis for clay consolidation2023

    • Author(s)
      Sugiyama Yuri、Hashimoto Nagate、Couture Cyrille、Takano Daiki
    • Journal Title

      Journal of Applied Electrochemistry

      Volume: 54 Issue: 5 Pages: 1057-1073

    • DOI

      10.1007/s10800-023-02018-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of Cross-Hole Resistivity Tomography using Sparse Modeling for Monitoring Chemical Grouted Area2023

    • Author(s)
      Sakurai K.、Takano D.、Sugiyama Y.、Kisanuki H.、Hasegawa N.、Niibe T.
    • Journal Title

      5th Asia Pacific Meeting on Near Surface Geoscience & Engineering

      Volume: 2023 Pages: 1-5

    • DOI

      10.3997/2214-4609.202378051

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Visualization of pile penetration using mechanoluminescent-coated particles2022

    • Author(s)
      Kondo A.、Takano D.、Kohama E.、Bathurst R. J.
    • Journal Title

      G?otechnique Letters

      Volume: 12 Issue: 3 Pages: 203-208

    • DOI

      10.1680/jgele.21.00069

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] MODEL EXPERIMENTS OF REAL-TIME MONITORING OF CHEMICAL GROUTING BY ELECTRICAL RESISTIVITY TOMOGRAPHY2022

    • Author(s)
      TAKANO Daiki、SUGIYAMA Yuri、NIIBE Takamasa、HASEGAWA Nobusuke、SAKURAI Ken、TAKEHANA Kazuhiro
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 78 Issue: 2 Pages: I_781-I_786

    • DOI

      10.2208/jscejoe.78.2_I_781

    • ISSN
      2185-4688
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] WORK PROGRESS CONTROL FOR GROUND IMPROVED BY CHEMICAL GROUTING USING P-WAVE AMPLITUDE ATTENUATION TOMOGRAPHY2022

    • Author(s)
      TSUTSUMI Ayato、YAMAMOTO Atsushi、KAI Masahiro、TAKANO Daiki、TAKAHASHI Hidenori、SAKAKIBARA Junichi
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 78 Issue: 2 Pages: I_805-I_810

    • DOI

      10.2208/jscejoe.78.2_I_805

    • ISSN
      2185-4688
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] CENTRIFUGAL MODEL TEST ON PASSIVE RESISTANCE MECHANISM OF STEEL PIPE SHEET PILES WITH SOIL IMPROVEMENT2021

    • Author(s)
      TAKANO Daiki、MORIKAWA Yoshiyuki、SUGIYAMA Yuri、MATSUO Yasunari、HAMANO Yoshiaki、ARAI Fumitaka
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 77 Issue: 2 Pages: I_397-I_402

    • DOI

      10.2208/jscejoe.77.2_I_397

    • NAID

      130008094249

    • ISSN
      2185-4688
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] CENTRIFUGAL MODEL TEST ON THE PASSIVE RESISTANCE OF STEEL PIPE SHEET PILES WITH SOIL IMPROVEMENT2020

    • Author(s)
      TAKANO Daiki、ARAI Fumitaka、MORIKAWA Yoshiyuki、MATSUO Yasunari、HAMANO Yoshiaki
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 76 Issue: 2 Pages: I_480-I_485

    • DOI

      10.2208/jscejoe.76.2_I_480

    • NAID

      130007910268

    • ISSN
      2185-4688
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 自己修復機能を付与したセメント改良粘土の強度回復特性に関する室内模型実験2024

    • Author(s)
      萩原裕敬
    • Organizer
      土木学会関東支部技術研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Evaluation of triaxial compression behavior of artificial particles using X‐ray tomography2023

    • Author(s)
      Daiki Takano
    • Organizer
      ICTMS2022
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of triaxial compression behavior of artificial particles using X‐ray tomography2022

    • Author(s)
      Daiki Takano
    • Organizer
      5th International conference on tomography of materials & structures
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 三次元比抵抗トモグラフィによる薬液改良地盤の出来形計測実験2020

    • Author(s)
      高野大樹
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 前面に固化改良体を有する鋼管矢板の受働抵抗に関する遠心模型実験2020

    • Author(s)
      高野大樹
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 養生期間がセメント改良土の局所化挙動に及ぼす影響2020

    • Author(s)
      神埼達也
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] セメント量と養生期間がセメント改良土の局所化挙動に及ぼす影響2020

    • Author(s)
      神埼達也
    • Organizer
      第75回年次学術講演会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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