CYCLIC SIMPLE SHEAR TESTS ON SATURATED CLAY WITH DRAINAGE

Abstract

We observed in the previous experiments that the pore pressure produced by the repeated shear stress is two or four times as much as the one by the static shear stress and therefore the repeated shear strength decreases in proportion to the increase of the pore pressure. So, in this experiments, the volume change which attained to an ultimate value depending on the shear strain amplitude and the pore pressure generated during cyclic shear were measured and the relations of them were investigated. As a conclusion, the volume change converted from the pore pressure increase using the coefficients of volume expansibility was a half of the one obtained in the cyclic shear tests with drainage.