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Time-dependent behavior of undisturbed Pleistocene deposits and its prediction method

Research Project

Project/Area Number 06555143
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Geotechnical engineering
Research InstitutionOsaka University

Principal Investigator

MATSUI Tamotsu  Osaka University, Civil Eng., Professor, 工学部, 教授 (20029143)

Co-Investigator(Kenkyū-buntansha) NABESHIMA Yasuyuki  Osaka Univ., Civil Eng., Research Associate, 工学部, 助手 (40263214)
ODA Kazuhiro  Osaka Univ., Civil Eng., Research Associate, 工学部, 助手 (00185597)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1995: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordsstrain path control / digital pressure-volume control device / mini-triaxial test / remolded saturated clay / strain increment ratio / デジタル圧力・体積変換器 / 不撹乱洪積粘土 / 力学挙動 / ひずみの状態量 / 隆伏基準 / 塑性ポテンシャル / 予測手法
Research Abstract

A series of strain path control tests was carried out to investigate fundamental mechanical behavior of remolded clays in strain path control mini-triaxial tests. The outline of this research was summarized as follows ;
1. The authors decided the applicable range of strain incremental ratios, which was the ratio between volumetric and axial strain increments, based on undrained test data of remolded clays. Using these strain incremental ratios (0-0.41), a series of strain path control mini-triaxial tests was carried out.
2. The mechanical behavior in strain path control tests was different from that in undrained or drained tests. Especially, relationship between deviator stress and axial strain was quite different, in which deviator stress repidly increased as increasing strain increment ratio. This phenomenon can be explained by the interaction between volume change due to digital pressure volume control device (DPVC) and dilatancy of clay.
3. The mechanical behavior of remolded clays was also different from that of sands in strain path control tests. Consequently, it is essential to investigate mechanical behavior of soils based on strain path.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 松井 保、他: "ひずみ経路制御ミニ三軸試験機の試作(印刷中)" 土木学会関西支部年次学術講演会. III. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 松井 保、他: "ひずみ経路制御ミニ三軸試験機の試作と練返し粘土への適用" 地盤工学研究発表会. 3-1(印刷中). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 松井 保、他: "ひずみ経路制御ミニ三軸試験機における練返し粘土のせん断挙動" 土木学会年次学術講演会. III(印刷中). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Matsui T.et al.: "Development of strain path control mini-triaxial apparatus" Proc.of Annual Conference of JSCE Kansai Chapter, JSCE Kansai Chapter. (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Matsui T.et al.: "Development of strain path control mini-triaxial apparatus and its application to remolded clay" Proc.of 31th National Conference on Geotechnical Engineering, JGES. (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Matsui T.et al.: "Mechanical behavior of remolded clay in strain path control mini-triaxial tests" Proc.of 51th Annual Conference of JSCE,JSCE. (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 松井保 他: "ひずみ経路制御ミニ三軸圧縮試験機の試作と練返し粘土への適用(印刷中)" 地盤工学研究発表会. 3-1. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松井保 他: "ひずみ経路制御ミニ三軸圧縮試験機の試作(印刷中)" 土木学会関西支部年次学術講演会. III. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松井 保・小田和広・鍋島康之・坂田智己: "泉南沖不撹乱洪積粘土の非排水せん断強度特性" 第30回 土質工学研究発表会講演概要集. (発表予定). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.MATSUI,K.ODA & Y.NABESHIMA: "APPLICABILITY OF MINI-TRIAXIAL TEST FOR UNDISTURBED CLAYS" TENTH ASIAN REGIONAL CONFERENCE ON SOIL MECHANICS AND FOUNDATION ENGINEERING (10 ARC). (IN PRESS). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 松井 保・小田和広・鍋島康之: "ミニ三軸圧縮試験機の開発と自然堆積粘土への適用" 土と基礎. 42. 17-22 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 松井 保・小田和広・鍋島康之: "ミニ三軸試験による泉州地域海底年度の力学パラメーターに関する研究" 海底地盤シンポジウム′94発表論文集. 107-112 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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