不飽和土の三軸圧縮状態における降伏関数

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書誌事項

タイトル別名
  • YIELD FUNCTION OF UNSATURATED SOIL UNDER TRIAXIAL COMPRESSION
  • 不飽和土の3軸圧縮状態における降伏関数
  • フホウワド ノ 3ジク アッシュク ジョウタイ ニ オケル コウフク カンスウ

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説明

Unsaturated soil can be simulated to elasto-plastic material. Based on the test results of suction controlled triaxial test on compacted kaolin clay, theoretical initial yield function and subsequent loading function are induced. Then the theory is examined by stress-probe test. In this paper triaxial stress state is defined by three stress components, they are, effective average principal stress, p=σm-ua, effective suction stress, f(S)=χ(ua-uw) at failure condition, and deviator stress, q=σ1-σ3, in which ua and uw are pore air and pore water pressure, respectively. Only one loading function similar to Original Cam Clay is obtained from the theory, on the other hand, results of stress-probe test indicate the presence of additional yield surface like failure surface besides one theoretically predicted.

収録刊行物

  • 土木学会論文集

    土木学会論文集 1989 (406), 205-212, 1989-06-20

    公益社団法人 土木学会

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