When the cumulative displacement becomes convex, movement
acceleration is evident and a progressive type of movement can
be inferred. When the cumulative displacement becomes
concave then deceleration takes place. As can be seen from
Figure 8 displacements “cyclically” change from convex to
concave and back to convex meaning that this is of a mixed
condition where the regressive type of movement prevails.
Although the cumulative displacement of this slope for a period
of 7 months is over 3m, the slope is still in a regressive type of
movement and therefore mine operations continue.