Economical Modeling for Identification of Best Drilling Choice in Sublevel Stoping

Abstract

Sublevel stoping is an underground mining method which has a low level of production cost. As well main part of the production cost is related to the chosen drilling system in each stope. Developing a model for identification of best drilling choice through economical point of view in each case is the main objective of this paper. In order to develop the model about 150 stopes have been designed by hypothesized dimension and pattern. In each case production cost on account of the extracted ore unite has been calculated. A mathematical model was developed on the basis of the non-linear regression on out puts fromcalculation of the hypothesized designations which provides production cost based on thickness of ore body and height of production block. Verification of the developed model has been carried out on some random data and the adaptation ratio is on acceptable rates.