In this the stoping contracts run vertically, the roof in the working-places, and later to control the fall of the roof while the pillars are mined.
Understanding the cause of the behavior is the first step in working through the problems and subsequently stoping the acting out.
In metal-mines producing abundant rock-filling the overhand method of stoping, illustrated in fig.
The usual method of working metal-mines is by overhand and underhand stoping, using rock-filling,, or pillars of mineral to support the roof.