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Fundamental research of practical use of Super Fine Silica Powder Slurry Materials for countermeasure against liquefaction

Research Project

Project/Area Number 26420485
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

YAMAGUCHI Akira  東北学院大学, 工学部, 教授 (30337191)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords地盤改良 / 浸透注入 / 一軸圧縮強さ / 超微粒子球状シリカ系改良材 / 極超微粒性セメント改良材 / 懸濁型改良材 / 一次元浸透実験 / 移流分散方程式 / 一次元浸透試験 / 移流方程式
Outline of Final Research Achievements

The method of estimating the unconfined compression strength of solid ground improved with permeation grouting was discussed in which the adsorption phenomena of powder material among grain particles was considered. A set of one dimensional permeation tests and unconfined compression tests on the hundreds specimens were conducted. The density of powder component of improved material in the ground was evaluated by solving the advection equation. The unconfined compression strength was found to be proportional to the density of powder component contained in the soil. The estimation procedure of the unconfined compression strength was proposed based on the test result. The model test using the drums and in-situ test of the grouting were conducted. The estimated unconfined compression strengths were compared with the results of these tests, and the estimation method was found to be promising.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (8 results)

All 2017 2016 2015 2014

All Presentation (8 results)

  • [Presentation] 極超微粒子セメントで浸透注入された地盤の平均粒径が一軸圧縮強さに与える影響2017

    • Author(s)
      村林豊,佐籐裕哉,山口晶,青由起雄,岡田和成
    • Organizer
      平成28年度土木学会東北支部技術研究発表会
    • Place of Presentation
      東北工業大学(宮城県仙台市)
    • Year and Date
      2017-03-04
    • Related Report
      2016 Annual Research Report
  • [Presentation] カオリンの混合が水ガラス系改良材の改良強度に与える影響2017

    • Author(s)
      新田駿,五十嵐幸範,山口晶,岡田和成,金高鉄次
    • Organizer
      平成28年度土木学会東北支部技術研究発表会
    • Place of Presentation
      東北工業大学(宮城県仙台市)
    • Year and Date
      2017-03-04
    • Related Report
      2016 Annual Research Report
  • [Presentation] カオリンを混合した水ガラス系改良材の地盤改良効果と土の粒径の関係2016

    • Author(s)
      小林秀斗、今江健太、高坂祐介、山口晶、岡田和成、金高鉄次
    • Organizer
      平成27年度土木学会東北支部技術研究発表会
    • Place of Presentation
      岩手大学 (岩手県・盛岡市)
    • Year and Date
      2016-03-05
    • Related Report
      2015 Research-status Report
  • [Presentation] 極超微粒子セメントを浸透注入させた改良体の一軸圧縮強さと試料の粒径の関係2016

    • Author(s)
      大内猛幹、成田佳樹、高坂祐介、山口晶、岡田和成、青由紀雄
    • Organizer
      平成27年度土木学会東北支部技術研究発表会
    • Place of Presentation
      岩手大学 (岩手県・盛岡市)
    • Year and Date
      2016-03-05
    • Related Report
      2015 Research-status Report
  • [Presentation] 超微粒子球状シリカ系改良材を浸透注入した地盤の一軸圧縮強さの推定2015

    • Author(s)
      高坂 祐介,山口 晶,岡田 和成,飛田 善雄
    • Organizer
      第50回地盤工学研究発表会
    • Place of Presentation
      北海道科学大学 (北海道・札幌市)
    • Year and Date
      2015-09-01
    • Related Report
      2015 Research-status Report
  • [Presentation] 超微粒子球状シリカ系改良材の地盤による吸着現象を考慮した一軸圧縮強さの推定2015

    • Author(s)
      久光浩基,赤木亮介,齋藤孝一,山口晶,高坂祐介,岡田和成
    • Organizer
      土木学会東北支部技術研究発表会
    • Place of Presentation
      東北学院大学(宮城県多賀城市)
    • Year and Date
      2015-03-07
    • Related Report
      2014 Research-status Report
  • [Presentation] 移流分散方程式の解析解を用いた改良材の一次元浸透注入時の遅延係数と分散係数の同定2015

    • Author(s)
      高坂祐介,飛田善雄,山口晶,岡田和成
    • Organizer
      土木学会東北支部技術研究発表会
    • Place of Presentation
      東北学院大学(宮城県多賀城市)
    • Year and Date
      2015-03-07
    • Related Report
      2014 Research-status Report
  • [Presentation] 超微粒子球状シリカ系改良剤により一次元浸透改良した砂質地盤の力学的性質に関する研究2014

    • Author(s)
      高坂祐介,山口晶,飛田善雄,田中秀弘,,岡田和成
    • Organizer
      第49 回地盤工学研究発表会
    • Place of Presentation
      北九州国際会議場(福岡県北九州市)
    • Year and Date
      2014-07-15 – 2014-07-17
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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