OPTIMIZATION THE PARAMETERS OF OPENING IN UNDERGROUND DEVELOPMENT OF THE KIMBERLITE DEPOSIT UNDERLYING RESERVES

Abstract

At the present stage of mining industry the transition to the commercial development of kimberlite
deposits by underground mining, provides the necessity to find methods and schemes of opening underlying reserves, maintaining both the efficiency
increase and terms reduction of commissioning the
underground mine into operation. Rational variants
of underlying reserves development by combined
kimberlite deposit mining with1 million tons of ore
per year. of a mine production capacity are designed. In terms of technical and economic comparison the options according to the criterion of
minimum discounted capital costs for carrying out
mining workings and the acquisition of tunneling
and transport equipment and operating costs on lifting and ore transportation it is set that the highest
efficiency is achieved by a combination of opening
types and locations of laying the main access roadways and optimization the opening step