Includes all capabilities from Map3D
Fault-Slip and adds the capability for the 3D rock mass to
yield to loads that exceed the rock strength, and deform non-linearly to
dissipate the excess stresses. This feature is useful for simulation of
thick seams, over-stressed pillars, abutments, backfill and creep
response. This formulation solves the non-linear problem on the surface
of the boundary elements and interpolates these effects between these
boundaries. This represents a first approximation to inelastic modelling
that boasts the advantage of large problem sizes and very fast
execution speeds.

