ANALYSIS OF DEVIATIONS FROM THE OPTIMAL PIT CONTOUR DUE TO NATURAL FACTORS AND ITS IMPACT ON THE ECONOMIC PERFORMANCE OF EXPLOITATION
DOI:
https://doi.org/10.30544/rudar8Keywords:
landslide, optimization, optimal pit contour modification, NPVAbstract
The paper analyzes the modification of the optimal pit contour for the case of the surface mine Južni Revir, due to the occurrence of a landslide in the eastern slope of the mine, caused by natural factors. The design of the final contour was carried out using Geovia Whittle™ and Geovia Gems™ software tools, enabling precise landslide modeling and optimization of exploitation boundaries. As a result of the modification, the amount of excavated overburden increased, leading to a reduction in the net present value (NPV) of the mining project.
References
Kržanović, D., Ljubojev, M., Jovanović, I., & Vušović, N. (2017). An analysis of the effects of changes in the price of metal and operating costs on profit in the exploitation of copper ore deposits: A case study of the copper mine Majdanpek, Serbia. Mining and Metallurgy Engineering Bor, 3-4, 51–58.
Kržanović, D., Vušović, N., Ljubojev, M., & Rajković, R. (2017). Importance of planning the open pits in the conditions of contemporary mining: A case study of the open pit South Mining District Majdanpek. Mining & Metallurgy Engineering Bor, 1-2, 15–22.
Kržanović, D., Vušović, N., & Ljubojev, M. (2018). Selection of the optimum pushbacks in a long-term planning process of the open pit: A condition for maximization of the net present value. A case study of the open pit Veliki Krivelj, Serbia. Mining and Metallurgy Engineering Bor, 1-2, 37–44.
Kržanović, D., Rajković, R., Vušović, N., & Milutinović, S. (2022). Reconstruction of the northwestern slope of the open pit South Mining District Majdanpek for the purpose of reconstructing the active landslide. Mining and Metallurgy Engineering Bor, 1, 19–24.
