OPTIMIZATION OF LATERITIC NICKEL ORE MINING USING HEURISTIC APPROACH WITH OPERATIONAL MINING UNIT (OMU) ON VOLUME, GRADE AND PROFIT USING REGULARIZATION METHOD

• Main Author: Bilyandi
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/86367
• Institution: Institut Teknologi Bandung

This study examines the influence of operational mining unit (OMU) size selection on volume, grade, and profitability in nickel laterite deposits. Utilizing the composite block model method, block sizes were adjusted to optimize mining efficiency. The research specifically compared the effects of vertical and horizontal OMU size variations on volume, grade, and profit (EBITDA). The results demonstrated that both vertical and horizontal block size adjustments significantly affected the volume and grade of the mined material. Further analysis revealed notable differences in nickel grade and tonnage depending on the OMU size. These variations had a direct impact on the profitability of mining activities. In conclusion, the study suggests that larger OMU sizes can result in higher profits under certain conditions, especially in larger-scale mining operations. The findings contribute valuable insights into the development of mining strategies, particularly in selecting optimal block sizes to maximize efficiency and profitability.