Shrinkage Stoping
An
underground mining method used in steeply dipping ore bodies
with potentially difficult
wall
rock conditions.
The ore is drilled and blasted in slices
advancing upwards. As broken rock
requires a larger volume
than solid rock, some ore must be drawn off as the
stope advances. Only enough
ore is drawn off after each blast to provide
adequate working space for the next cycle.
Once a complete lift of ore has been broken, the ore is completely loaded
out
from the bottom of the
stope.
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