INNOVATION TECHNOLOGY OF DEVELOPMENT AND MINING DEEP LEVELS OF THE KISHTIMSKY GRANULAR QUARTZ DEPOSIT
Keywords:
an inclined deposit, high-valuable quartz, development pattern, combined system of mining, self-propelled equipment, ore losses and clogging, technical-and-economic indicesAbstract
Rational patterns of development the reserves of the
Kishtimsky mine’s lower levels are worked out, that
is in the 316/266 floor by an inclined crossover
combined with a motor grade as well as by central
and end rise headings; in the 266/216 floor by an
inclined crossover and end rise headings. The construction and parameters of the reserves mining
combined system are grounded, that is chambersublevel system with forming and subsequent pliable pillars caving, the pillars being of trapezium
form. The adopted consecutive descending order of
mining the floors’ reserves provides for the greatest
safety of conducting mining operations and high
level of completeness and quality of ore extraction
from the blocks. Highly efficient self-propelled
equipment is employed performing all the processes
of stoping operations. Basic technical-and-economic indices of reserves mining in the 316/216
floor are calculated
