Modeling for the steady state production of large open cast mines- case study

The steady state production mainly depends on the availability of the machines, their breakdown, maintenance schedule and reduction in their idle-time that is increasing their availability increases/ maximizes their utility. I have prepared the work-sheet for a shovel-dumper combination and following it I have analyzed break-down record by the distribution of random numbers so as to minimize the preventive maintenance and increase their availability to maximize productivity. The break-down of different machines was analyzed with random numbers distribution. The events falls under a fixed random number distribution range. Hence a clear idea can be made for the break-down of machineries and thus precautions to be taken to maintain a steady-state production