Mining optimisation through modeling of material extraction over time period

摘要

Disclosed is a method of generating mine plan data for operation of a mine. The life of mine is divided into a plurality of increasing lengths of time and optimisation steps are performed, with each step being performed once for a predetermined time period for the remaining life of mine. Material may be stockpiled or sent direct to product or to waste without any stockpiling. A decision (10) is made as to which material is sent to product (16) in each time period for the remaining life of mine. In each predetermined time period, material with a grade greater than a marginal grade that is not sent to produce is sent to stockpile (12) and all material less than a marginal grade are sent to waste (14). In the remaining life of mine, after the predetermined period, it is required that all material not sent to produce be sent to waste.