FIELD: mining. SUBSTANCE: method includes driving of haulage and vent drifts, upward mining of ore in chambers and ore haulage to haulage level by gravitation. Brest stoping of ore is carried out with the help of drilling unit in ore body with parallel filling of adjacent mined-out chamber with monolithic hardening fill. In this case, lagging of slope L behind level of fill in adjacent chamber is determined by formula L=Vdr.•tselt. m, where Vdr. is drilling rate, m/shift; tselt. is fill setting time, shift. EFFECT: complete extraction and higher efficiency of stoping operations. 2 dwg
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Authors
Dates
2002-11-27—Published
2001-03-28—Filed