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Fundamental and applied issues of mining

2020 year, number 1

EVALUATION OF RESERVES OF CALENDAR LABOR TIME FUND OF KUZBASS EXCAVATOR FLEET

M. Yu. Drygin
Gorbachev Kuzbass State Technical University, Kemerovo, Russia
Keywords: Excavator, calendar labor time fund, productivity, reserves, downtime

Abstract

It is shown that the reserve for increasing production consists in increasing the capacity of the main production machines operating in the coal mines of Kuzbass. Analysis of the data showed that the excavator fleet has a significant amount of its own time reserves. For a fleet of excavators with high performance requirements, even taking into account the manufacturer’s technical utilization rate, the underutilization of the time fund is more than 8.2 - 10.2 %, the underutilization of the guaranteed productivity (shift-day) is 75 - 77 % in the short term and not less than 58 - 60 % in the long term (a week or more).