FIELD: mining.
SUBSTANCE: method includes supplying pulp under excessive pressure via a safety device. The safety device is arranged as a tee, one end of which is connected to a bottomhole pulp line, the second one - to a sealer, and a safety membrane is installed on the third one. At the same time the output of wells in the backfilled chamber is arranged near its roof.
EFFECT: higher extent of chambers filling with a backfilling material with reduction of labour costs.
2 cl, 7 dwg
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