FIELD: mining industry. SUBSTANCE: method for filling in descending extraction of mineral by stopes includes formation by layer of different in strength mass in height of stopes. Subroof layer is stowed with addition of nonexplosive destroying substance in certain ratio to other components, and height of this layer is selected from 10% increase of volume of hardening mixture. EFFECT: higher efficiency.
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Authors
Dates
1996-11-27—Published
1994-07-28—Filed