•  
  •  
 

Author ORCID Identifier

Sílvia de Castro Martins: 0009-0001-3077-0263

Pedro Campos: 0000-0001-5208-7177

Douglas Mazzinghy: 0000-0003-2569-6932

Abstract

The use of geometallurgical variables to improve the accuracy obtained in mine planning is an increasingly present reality in mining. However, the way these variables are interpolated to construct the block model is still a major challenge since they are non-additive variables. In this case study, a database from a copper mine located in Brazil was used to compare mining planning by Direct Block Scheduling using two spatial interpolation approaches. In the first approach, the geometallurgy block model was produced interpolating the comminution indexes Axb and BWI from the drill holes, and the specific energy was calculated at each block. The second approach consisted of calculating the specific energy at the drill holes first, then interpolating the values into the blocks. The results indicated that the difference between the two approaches was not significant. Both block models produced a mine life equal to seven years and a percentage difference in the accumulated NPV of 0.54%.

Additional Files
Figures_FINAL (1).docx (6532 kB)
Fig. 2 and Fig. 3

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Download

Share

COinS