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Proposal of countermeasures against long-term settlement of soft ground with a view to overseas deployment of integrated infrastructure systems

Research Project

Project/Area Number 25820214
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Geotechnical engineering
Research InstitutionNagoya University

Principal Investigator

TASHIRO Mutsumi  名古屋大学, 工学(系)研究科(研究院), 助教 (00422759)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords地盤の挙動 / 長期沈下 / 鉛直ドレーン / 真空圧密
Outline of Final Research Achievements

When embankments are constructed on soft ground, including peat/clay, large residual settlement due to long-term settlement are often observed after the entry into service, and maintenance and repair work should be carried out repeatedly. This study proposed a countermeasure policy against long-term settlement of soft ground due to embankment loading with the aim of transferring the Japanese advanced technology to foreign countries which are also suffered from soft ground. The new numerical method could be effective tool for improving prediction accuracy for the long-term settlement, and also quantitatively evaluating the ground improvement effect of vertical drains/vacuum consolidation, considering ground conditions, construction costs and construction period.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (17 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (15 results)

  • [Journal Article] Simulation of large-scale deformation of ultra-soft peaty ground under test embankment loading and investigation of effective countermeasures against residual settlement and failure2015

    • Author(s)
      M. Tashiro, H. S. Nguyen, M. Inagaki, S. Yamada and T. Noda
    • Journal Title

      Soils and Foundations

      Volume: 55(2) Pages: 343-358

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simulation and evaluation of improvement effects by vertical drains/ vacuum consolidation on peat ground under embankment loading based on a macro-element method with water absorption and discharge functions2015

    • Author(s)
      H. S. Nguyen, M. Tashiro, M. Inagaki, S. Yamada and T. Noda
    • Journal Title

      Soils and Foundations

      Volume: 55(4)

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] Evaluation of the improvement effects by vertical drains / vacuum consolidation on peaty ground under embankment loading2015

    • Author(s)
      M. Tashiro and H. S. Nguyen
    • Organizer
      The 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (15ARC)
    • Place of Presentation
      福岡国際会議場
    • Year and Date
      2015-11-09 – 2015-11-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] ドレーンの集排水機能を具備したマクロエレメント法に基づく板状ドレーンのモデル化に関する一考察2015

    • Author(s)
      田代むつみ, H. S. Nguyen, 山田正太郎, 野田利弘
    • Organizer
      第50回地盤工学研究発表会
    • Place of Presentation
      北海道科学大学
    • Year and Date
      2015-09-01 – 2015-09-03
    • Related Report
      2014 Annual Research Report
  • [Presentation] マクロエレメント法を適用した水~土連成解析による中間砂層を含むピート地盤に対する真空圧密適用性の検討2014

    • Author(s)
      田代むつみ, H. S. Nguyen, 山田正太郎, 野田利弘
    • Organizer
      第59回地盤工学シンポジウム
    • Place of Presentation
      長野市生涯学習センター
    • Year and Date
      2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] バーチカルドレーンの集排水機能を具備するマクロエレメント法の近似精度の検証2014

    • Author(s)
      山田正太郎, 野田利弘, 田代むつみ, H. S. Nguyen
    • Organizer
      第59回地盤工学シンポジウム
    • Place of Presentation
      長野市生涯学習センター
    • Year and Date
      2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] Numerical analysis of improvement effect on peaty ground by vertical drains/ vacuum consolidation based on a new macro-element method2014

    • Author(s)
      H. S. Nguyen, M. Tashiro, T. Noda and S. Yamada
    • Organizer
      14th International Conference of the International Association for Computer Methods and Advances in Geomechanics (IACMAG)
    • Place of Presentation
      京都国際会議場
    • Related Report
      2013 Research-status Report
  • [Presentation] 鉛直ドレーン・真空圧密の改良効果に及ぼす中間砂層の影響2014

    • Author(s)
      田代むつみ, 山田正太郎, 野田利弘、H. S. Nguyen, 山田耕一,高平翔,稲垣太浩
    • Organizer
      第49回地盤工学研究発表会
    • Place of Presentation
      北九州市国際会議場
    • Related Report
      2013 Research-status Report
  • [Presentation] Evaluation for improvement effect by vertical drains/vacuum consolidation based on mass-permeability concept or proposed macro-element method2014

    • Author(s)
      H. S. Nguyen, M. Tashiro, S. Yamada, T. Noda, K. Yamada, K. Takahira and M. Inagaki
    • Organizer
      第49回地盤工学研究発表会
    • Place of Presentation
      北九州市国際会議場
    • Related Report
      2013 Research-status Report
  • [Presentation] Analytical study of improvement effects on peaty ground by vertical drains/vacuum2014

    • Author(s)
      H. S. Nguyen, M. Tashiro, S. Yamada and T. Noda
    • Organizer
      第69回土木学会年次学術講演会
    • Place of Presentation
      大阪大学
    • Related Report
      2013 Research-status Report
  • [Presentation] The possibility of delayed settlement of ultra-soft ground containing peat due to embankment loading combined with vacuum consolidation2013

    • Author(s)
      H. S. Nguyen, M. Tashiro, S. Yamada, T. Noda, K. Yamada, C. Nakahori and M. Inagaki
    • Organizer
      第68回土木学会年次学術講演会
    • Place of Presentation
      日本大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 真空圧密工法を併用した盛土載荷による超軟弱ピート地盤の沈下の再現と将来予測2013

    • Author(s)
      田代むつみ, 山田正太郎, 野田利弘、H. S. Nguyen, 山田耕一,中堀千嘉子,稲垣太浩
    • Organizer
      第48地盤工学研究発表会
    • Place of Presentation
      富山国際会議場
    • Related Report
      2013 Research-status Report
  • [Presentation] Estimation of in-situ initial conditions of an ultra-soft ground containing peat in Mukasa area2013

    • Author(s)
      H. S. Nguyen, M. Tashiro, S. Yamada, T. Noda, K. Yamada, C. Nakahori and M. Inagaki
    • Organizer
      第48地盤工学研究発表会
    • Place of Presentation
      富山国際会議場
    • Related Report
      2013 Research-status Report
  • [Presentation] Prediction of and countermeasures for embankment-related settlement in ultra-soft ground containing peat2013

    • Author(s)
      M. Tasiro, M. Inagaki and A. Asaoka
    • Organizer
      18th International Conference on Soil Mechanics and Geotechnical Engineering
    • Place of Presentation
      Paris (France)
    • Related Report
      2013 Research-status Report
  • [Presentation] Simulation and prediction of large-settlement in ultra-soft ground by deducing the in-situ initial conditions considering artesian pressure2013

    • Author(s)
      M. Tashiro, T. Noda and H. S. Nguyen
    • Organizer
      3rd International Conference on Geotechnique, Construction Materials and Environment
    • Place of Presentation
      名古屋
    • Related Report
      2013 Research-status Report
  • [Presentation] Simulation of the well resistance of vertical drains using a new macro-element method

    • Author(s)
      H. S. Nguyen、S. Yamada, T. Noda and M. Tashiro
    • Organizer
      Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE 2014)
    • Place of Presentation
      仙台国際会議場
    • Related Report
      2013 Research-status Report
  • [Presentation] A proposal for a new macro-element method considering well resistance phenomena of vertical drains

    • Author(s)
      H. S. Nguyen, S. Yamada, M. Tashiro and T. Noda
    • Organizer
      第19回計算工学講演会
    • Place of Presentation
      広島国際会議場
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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