METHOD OF MINING MINERAL DEPOSITS UNDER PERMAFROST CONDITIONS

摘要

FIELD: mining industry; applicable in mining of bedded mineral deposits under permafrost conditions. SUBSTANCE: method includes making of opening and development workings, stoping operations with control of rock pressure by full caving, drilling of holes from surface into prepared for mining long pillar. After beginning of stoping operations and primary caving of rocks of main roof and further on supplied periodically after each step of caving, is cold water with temperature of not above plus 5 C to worked out space through holes to fully fill voids in caved rocks. EFFECT: provision of technology with full caving of roof, absence of fall-throughs on surface and excluded leaving of safety pillars under surface objects. 2 dwg