Production-rate selection for steeply dipping tabular deposits

Tatman, C. R.
Organization: Society for Mining, Metallurgy & Exploration
Pages: 3
Publication Date: Jan 1, 2002
Failure to achieve the planned production rate at new mines and mine expansions has a major adverse impact on a project's economics. A study of 60 steeply dipping tabular deposit-type underground mines showed that 35% of the mines did not achieve their production goals. An empirical formula based on the geometry of the deposit and expressed as a rate factor is applicable to select a production rate for this type of deposit. The formula is: Annual production rate = Rate factor x Rate multiplier. The appropriate rate multiplier for each category of deposit thickness and the associated risk can be used to select an appropriate production rate.
Full Article Download:
(215 kb)