THE MEASUREMENT OF K_0 BY TRIAXIAL STRAIN PATH TESTING

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概要

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• The choice of reference stress state as datum for zero lateral strain is identified as a problem inherent in the determination of K_0 of sand by laboratory tests. A new, but simple, test method based on strain path testing is presented. This new test method enables a systematic investigation into the influence of a non-zero isotropic reference stress on the measured K_0 value. The results of such a study introduces the concept of a threshold reference stress, p'_<00>, the maximum reference effective stress that can be used to ensure the correct determination of K_0 value for a normally consolidated condition. p'_<00> is dependent on the effective axial stress, σ'_a, at which K_0 is to be measured. The value of σ'_a/p'_<00>, however, lies within a narrow range. For an over-consolidated condition, K_0 appears to be independent of p'_0 Provided the preconsolidation stress is significantly higher than p'_<00>.

• 社団法人地盤工学会の論文
• 1991-06-15

著者

• Lo S‐c

  Univ. New South Wales Act Aus

• Chu J

  Nanyang Technological Univ. Singapore

• Lo SC.

  Senior Lecturer Department of Civil and Maritime Engineering, University College

• CHU J.

  Former Research Student, Senior Lecturer Department of Civil and Maritime Engineering, University College

• Lo S-C.R.

  Senior Lecturer Department of Civil and Maritime Engineering, University College

関連論文

• THE MEASUREMENT OF K_0 BY TRIAXIAL STRAIN PATH TESTING

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