FIELD: mining. SUBSTANCE: preparing mass of permafrost rocks is drilled with boreholes, that are charged with explosives and explode. After that on flanks of the range hydraulic needles are situated and under pressure water feeding is exercised. In the case water pumping-in is alternatively changed with its pumping out. As a version, water pumping-in and pumping out are exercised from one flank of range. EFFECT: method allows to develop natural minerals of the North. 2 cl
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