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The development of ground deformation evaluation method considering void re-distribution due to liquefaction

Research Project

Project/Area Number 25420510
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Geotechnical engineering
Research InstitutionNihon University

Principal Investigator

SENTO Noriaki  日本大学, 工学部, 准教授 (40333835)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords液状化 / 間隙 / 再配分 / 地盤変状 / 液状化強度 / 地盤調査 / 間隙水圧 / 液状化対策 / 体積膨張 / 体積収縮 / 余震 / ドレーン / 中空ねじりせん断試験 / 動的コーン貫入試験 / 有効応力解析
Outline of Final Research Achievements

Liquefaction due to earthquake induces the upward movement of water in the ground. As a result, a looser part is formed underneath the non-liquefiable surface layer. This part becomes weak part in the ground and causes the severe damages for infrastructures. In this research, liquefaction resistance not at the looser part due to inflow, but at the denser part due to outflow of pore water were studied by the laboratory element tests. The decreasing and increasing ratio against undrained liquefaction resistance were suggested and evaluated quantitatively.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (17 results)

All 2016 2015 2014 Other

All Presentation (17 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] 液状化による埋設管の浮上と上向き浸透流の関係に着目した小型土槽模型振動台実験2016

    • Author(s)
      神野藤清貴,仙頭紀明
    • Organizer
      土木学会東北支部技術研究発表会(平成27年度)
    • Place of Presentation
      岩手大学
    • Year and Date
      2016-03-05
    • Related Report
      2015 Annual Research Report
  • [Presentation] 表層非液状化層の有無に着目した液状化による埋設管浮上に関する模型振動実験2016

    • Author(s)
      小林 亮,仙頭紀明
    • Organizer
      土木学会東北支部技術研究発表会(平成27年度)
    • Place of Presentation
      岩手大学
    • Year and Date
      2016-03-05
    • Related Report
      2015 Annual Research Report
  • [Presentation] 均等係数が異なる砂質土を対象とした浸透固化改良土の液状化強度特性2016

    • Author(s)
      斎藤源輝,秋本哲平,林 健太郎,仙頭紀明
    • Organizer
      土木学会東北支部技術研究発表会(平成27年度)
    • Place of Presentation
      岩手大学
    • Year and Date
      2016-03-05
    • Related Report
      2015 Annual Research Report
  • [Presentation] 強震時における溶液型薬液改良砂の非排水繰返しせん断特性2015

    • Author(s)
      仙頭紀明, 有本 拓麻,林 健太郎
    • 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
    • Related Report
      2015 Annual Research Report
  • [Presentation] A New Definition of Onset of Liquefaction in Improved Soils2015

    • Author(s)
      Rouzbeh Rasouli, Kentaro Hayashi1, Noriaki Sento, Takuma Arimoto
    • 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
    • Related Report
      2015 Annual Research Report
  • [Presentation] Liquefaction potential and residual deformation of ground behind a wharf pier with minimal damage caused by the 2011 off the Pacific Coast of Tohoku Earthquake2015

    • Author(s)
      N. Sento, W. Yatagai, A. Sanomine, D. Yoshizawa
    • Organizer
      International Conference on Geotechnical Engineering, ICGE-Colombo-201
    • Place of Presentation
      コロンボ(スリランカ)
    • Year and Date
      2015-08-11
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 杭頭に滑り支承を有する杭基礎の地震動減衰機構2015

    • Author(s)
      吉川翔太,仙頭紀明
    • Organizer
      土木学会東北支部技術研究発表会
    • Place of Presentation
      多賀城
    • Year and Date
      2015-03-07
    • Related Report
      2014 Research-status Report
  • [Presentation] 溶液型薬液改良砂の強震時における非排水繰返しせん断特性2015

    • Author(s)
      有本拓麻,仙頭紀明
    • Organizer
      土木学会東北支部技術研究発表会
    • Place of Presentation
      多賀城
    • Year and Date
      2015-03-07
    • Related Report
      2014 Research-status Report
  • [Presentation] Applicability of effective stress analysis for prediction of deformation during strong motion with long duration2014

    • Author(s)
      S. Tsuboi, T. Ohsumi , R. Uzuoka, N. Sento,
    • Organizer
      14th International Association for Computer Methods and Recent Advances in Geomechanics
    • Place of Presentation
      Kyoto
    • Year and Date
      2014-09-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 繰返しせん断試験中に生じる排水が液状化強度の増加に及ぼす影響2014

    • Author(s)
      仙頭紀明,谷田貝航,長谷川峻
    • Organizer
      第49 回地盤工学研究発表会
    • Place of Presentation
      北九州
    • Year and Date
      2014-07-16
    • Related Report
      2014 Research-status Report
  • [Presentation] 2011 年東北地方太平洋沖地震で被災を免れた仙台塩釜港向洋埠頭桟橋背後地盤の液状化ポテンシャルと残留変形2014

    • Author(s)
      仙頭紀明,谷田貝航,佐野峯麻聖
    • Organizer
      地盤工学会特別シンポジウム-東日本大震災を乗り越えて-
    • Place of Presentation
      東京
    • Year and Date
      2014-05-14
    • Related Report
      2014 Research-status Report
  • [Presentation] 飽和砂斜面に作用する余震の影響に注目した非排水繰返しせん断試験

    • Author(s)
      仙頭紀明,嶋﨑彰則
    • Organizer
      大ひずみ領域を考慮した土の繰返しせん断特性に関するシンポジウム
    • Place of Presentation
      東京
    • Related Report
      2013 Research-status Report
  • [Presentation] 間隙の再配分を考慮した液状化強度評価のための部分排水試験

    • Author(s)
      谷田貝航,仙頭紀明
    • Organizer
      第48 回地盤工学研究発表会
    • Place of Presentation
      富山
    • Related Report
      2013 Research-status Report
  • [Presentation] 間隙の再配分を考慮した液状化強度評価のための部分排水繰返しせん断試験

    • Author(s)
      谷田貝航,仙頭紀明
    • Organizer
      土木学会第68回年次学術講演会
    • Place of Presentation
      千葉
    • Related Report
      2013 Research-status Report
  • [Presentation] 繰返しせん断中の排水が飽和砂の液状化強度に及ぼす影響

    • Author(s)
      長谷川峻,仙頭紀明
    • Organizer
      土木学会東北支部技術研究発表会(平成25年度)
    • Place of Presentation
      八戸
    • Related Report
      2013 Research-status Report
  • [Presentation] 間隙の再配分による体積変化を伴う砂の繰返しせん断特性に関する研究

    • Author(s)
      谷田貝航,仙頭紀明
    • Organizer
      土木学会東北支部技術研究発表会(平成25年度)
    • Place of Presentation
      八戸
    • Related Report
      2013 Research-status Report
  • [Presentation] 東日本大震災を経験した液状化対策地盤のPDC による地盤調査

    • Author(s)
      佐野峯 麻聖,仙頭 紀明
    • Organizer
      土木学会東北支部技術研究発表会(平成25年度)
    • Place of Presentation
      八戸
    • Related Report
      2013 Research-status Report

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

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