ABSTRACT
After draining away water from the backfill, sinusoidal waves at frequency of 100 Hz were applied to the RSW at a centrifugal acceleration of 50 g. In this test, backfill of the RSW were under unsaturated condition as the water was not completely drained. Thus, shear stiffness and strength of backfill was expected to be higher than those under dry and saturated conditions. Figure 5 shows time histories of the sinusoidal waves applied to the model in the saturated test case. In the unsaturated case, only step 1∼step 3 were applied.
