FIELD: mining engineering.
SUBSTANCE: method includes drilling of wells in inter-chamber pillars, laying of bottom-hole pulp line, supply of pulp to deposited chamber through wells. In this case, the pulp line is laid in perpendicular to bottomhole pulp line through the wells for the whole length of chamber block, the holes are made in it above each chamber for feeding pulp and successive backfilling of block chambers is carried out.
EFFECT: reduced duration of backfilling operations and reduction of labour input due to laying of one bottom-hole pulp line into the block of chambers.
4 cl, 4 dwg
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