Substantiation of the optimal parameters of the bench elements and slopes of iron ore pits

Purpose. To establish the optimal parameters of bench elements and slopes pit at mining Horishne-Plavnynske Lavrykovske deposits ferruginous quartzites for further use these design. Methodology. Methods determining influence height on productive capacity involves taking into account quality ore, rate front advancement, depth operations, total length front, as well angles working non-working slops. Findings. The most effective benches an iron ore are considered, using example Ferrexpo Poltava Mining. Parameters with a 2430 m have been established, which worked out in layers 12, 10 15 m. studies carried made it possible to that m, followed by final temporary contour 30 can improve safety due flattened slope up 45, while, angle inclination will be 47. Originality. established dependence productivity percentage suggests increase (layer) height, decreases. Determination volume losses design makes assert constant deposit fall, values operating clogging change direct proportion height. Practical value. A technological scheme has developed development 30m layer thickness flattening reduce cost optimizing drilling operations (shorter time per well, reduction overdrilling etc.) thereby economic performance enterprise.