The impact of an error in selection the pushbacks in the long-term planning of the open pit production on project quality, case study: Open pit Veliki Krivelj, Bor, Serbia

Today, there is a large number of software in which various mathematical algorithms for optimization the open pits are implemented. However, the importance of experience of the mining engineers in planning is still crucial for the quality of mining projects. Proper selection of the pushbacks is one of the most important planning steps in a long-term planning of production at the open pit. Therefore, the mistakes that occur in this planning step have a great impact on the project quality. Using the example of the Veliki Krivelj project, this paper presents the importance of correct selection the Pushbacks from an aspect of satisfying the practical geometric mining constraints.