2014 Volume 70 Issue 2 Pages I_924-I_929
The present study investigated the dynamic characteristics of rock debris by performing a comprehensive set of large simple shear tests with various rock debris. The results demonstrate that the volume contraction characteristics of rock debris subjected to cyclic shearing depends on its density, confining stress, and cyclic shear stress ratio applied. The wet density and void state of the rock debris ground were also confirmed when deposited in water by direct pouring. On the basis of the test results and their analysis, we presented a chart which can be used for assessment and prediction of the residual volumetric strain and settlement of rock debris ground under future earthquakes.
