Since 2012, low commodity prices have forced many mining companies to suspend or cease operations. To remain in business, some mine managers are exploring strategies reduce operational costs. Given its importance as a cost element, increasing bench drilling efficiency and performance open-pit mines has the potential generate considerable savings. Efficiency gains can be realized by monitoring o...

In the case of Roşia Poieni open pit mine level +805 m was established as a daily operating limit; division into benches based on this by dividing horizontal slices with thickness 15 m, equal to height bench. Thus, there were 27 in Curmătura area and 23 Ruginiş area. The general slope angle set at 35°, for which tailings volumes implicitly opening-up coefficient calculated. stability analysis p...

Reliable estimates of peak particle velocity (PPV) from blasting-induced vibrations at a construction site play crucial role in minimizing damage to nearby structures and maximizing blasting efficiency. However, reliably estimating PPV can be challenging due complex connections between influential factors such as ground conditions. While many efforts have been made estimate reliably, discrepanc...

By evaluation of the blasting results, a proper blast pattern can be presented. It is, therefore, essential to employ a reliable method to evaluate blastings for the effective control and optimization of the main cycle operations. This paper aims to propose a criterion for evaluating the blasting results such as the fragmentation, muckpile condition, back-break, and fly rock, and to make a poss...

In order to catch up with reality, all the macro-decisions related to long-term mining production planning must be made simultaneously and under uncertain conditions of determinant parameters. By taking advantage of the chance-constrained programming, this paper presents a stochastic model to create an optimal strategy for producing bimetallic deposit open-pit mines under certain and uncertain ...