THE REGULARITIES OF VARIATION LOSSES AND DILUTION IN THE COMBINED SYSTEM OF QUARTZ RAW MATERIAL MINING

Abstract

The results of investigations the indicators of extraction are presented obtained by different variants of
mining inclined ore bodies of the Kishtimsky granular quartz deposit by subsurface combined system.
The variants are distinguished by form, conditions
and mode of inter-chamber pillars development. All
this provides for technology features of mining block
cleaning extraction. Proceeding from the dynamics
of quartz extraction indicators that is losses and dilution that takes place in connection with both the
output and ore body slope angle change, estimation
of the variants efficiency is performed that contains
discrete analytical calculations of the given indicators taken as criteria and their consequent regressive simulation. The regularities of losses and dilution changes revealed according to models give the
chance to determine both the degree of optimality
the system of mining variants and to plan mining operations purposefully.