K_0 CONSOLIDATION OF UNDISTURBED CLAYS BY MEANS OF TRIAXIAL CELL

概要

論文の詳細を見る
It is well realized that the in-situ K_0 stress condition of undisturbed soil samples should be reproduced in the laboratory test in order to inspect the mechanical properties of soil properly. In this study, an automatic triaxial testing system was newly developed, in which triaxial tests on undisturbed clay samples after reproducing the in-situ K_0 stress condition can be carried out in a practical manner. According to the results of the tests with this system, it was made clear that the measured K_0-value was largely affected by the compressibility of side drain paper and that the correction was necessary in order to reproduce the in-situ stress condition with the proper K_0-value. The initial isotropic consolidation pressure at which the control of K_0 condition started also had an important effect on the final K_0-value. It is recommended that one sixth or one eighth of the preconsolidation pressure should be used as the initial isotropic consolidation pressure.
社団法人地盤工学会の論文
1991-09-15