1974 Volume 2 Issue 2 Pages 58-62
Anisotropic, three-dimensional consolidation tests were conducted on organic clays and an attempt was made to represent the resulting complex phenomena in terms of as simple an equation as possible. Basic experimental data, involving relationships between stress, strain, and time, were used to develop the equation. The conclusions obtained are as follows:
(1) The shear creep rate during anisotropic consolidation may be expressed by a linear equation in terms of the stress ratio. Creep rate in anisotropically consolidated samples is more sensitive than in isotropically consolidated ones to a variation of stress ratio. The safety factor for the flow creep failure of isotropic samples is apt to be overestimated.
(2) In contrast to the case of isotropic consolidation, the dilatancy cannot be ignored in the case of anisotropic consolidation. The dilatancy rate can be expressed by Eq.(15) shown in the paper.