Hybrid long hole method and pillar recovery in narrow vein mining

Abstract This presentation will explain the use of a hybrid method using shrinkage and long hole methods in narrow vein mining with low dilution.
Comparison with calculations of dilution using the old method and the hybrid method will be shown.

The presentation will also discuss about the high grade pillars recovery using long hole method. This method helped the mine recover the high grade pillar that were left in the mine on the past producing level.
Keywords: Narrow vein mining, shrinkage, long hole method, Ore recovery, Pillar recovery, Dilution, Cost
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