FIELD: mining industry, opencast mining of deposits of mineral wealth. SUBSTANCE: process of development of steeply deeping deposits while working deep floors in stripping includes development of stripping in turns, fill of overburden rocks to external and internal dumps. Pillar of mineral product is left in lower part of stripping and internal dumps are filled with addition to left pillar and multiple transfer of overburden. Pillar of mineral product is developed at last stage of work. EFFECT: reduced labor input to overburden operation thanks to increase of internal dumps. 5 dwg
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