The program analyses the behaviour of the rock slopes under seismic conditions. It evaluates the displacements of a rock block subject to dynamic forces, on the basis of a given accelerogram.

The use of a calculation method based on a given accelerogram for rock slope stability analysis allows one to take into account the duration and the intensity of the accelerogram itself (this not being the case with the normally used limit equilibrium methods).

This allows a more realistic estimation of the effects of a seismic event on a potentially unstable rock block.

The program requires the shape of the rock slope face, the geomechanical parameters of the rock mass, the shape of the sliding surface and, as an option, of the water table.

In order to create a synthetic accelerogram, one should define the duration and maximum value of the foreseen seismic acceleration, the number of waves and their characteristic period. A recorded real accelerogram can also be used.