Access allowed for: 12 month
Description: Presented by Arja Jewbali and Brian Haverland, Newmont Mining Corp. A bench height study was completed for the Merian mine in Suriname. Due to floor conditions, the mine was struggling to maintain production and dilution on 5m benches. It was hoped that these conditions might be somewhat ameliorated by mining on a 10m high bench. This study consisted of two parts, 1) a simulation based study to determine the amount of dilution and ore loss in mineable polygons (at the ore control level) if mining were to switch to a 10m bench, and 2) a second component which looked at the economical and operational aspects of switching to a 10m bench. The speakers will discuss the results of the study and conclude with a back reconciliation: how do the results after the switch to 10m benches compare against the predictions from the study?