Optimal Sizing of Conventionally-Sunk Ventilation Shafts Based Upon Capital and Operating Criteria (86dbf6a4-5bfb-4e9e-9d1f-a7e091bc8fe0)

The approach proposed in this paper is, as stated by the authors, an update of methods well discussed in the literature. The authors are to be congratulated for their excellent effort in quantifying a difficult problem with realistic cost data. Economic analysis of the components of a mine ventilation system is complicated by both the dynamic nature of the system and the uncertainty as to the time when system changes occur. We wish to address three specific areas of this paper which require further consideration: shaft designed air capacity, shaft location, and economic criteria used within the analysis