Creation of geometry, placing the boundaries at sufficiently large distance from the
area of interest to minimize the influence of the boundary conditions.
• Create discrete blocks cutting the geometry using the discontinuities like joints and
excavations.
• Specify the rock mass properties like Young’s Modulus, Poisson’s ratio and joint
properties like normal and shear stiffness and cohesion and friction angle.
• Apply boundary conditions including the energy absorbing boundaries by
incorporating the standard viscous boundaries. These boundaries absorb energy of out
ward moving waves.
• Apply in- situ stresses.
• Apply loading along the walls of the blastholes. The unbalanced forces in each block
will give acceleration to the blocks, causing the blocks to move, thereby transmitting
forces to adjacent blocks.