| 摘要 |
FIELD: mining.SUBSTANCE: invention relates to mining industry, particularly to methods of preventing rock bumps and gas-dust emissions. Method involves drilling wells and injection of aqueous solution of an electroconductive fluid into them, for example aqueous solution of calcium chloride, which is preliminarily cooled to negative temperature. Solution concentration is chosen so, that the temperature, to which the solution can be cooled, provides freezing of rocks within the zone of the well thermal influence and creation of continuous zone of melted-frozen medium between the wells.EFFECT: technical result is reduction of labour intensity and higher efficiency of prevention of dynamic phenomena in the rock mass due to differential softening of the rocks layer lying near the mine working.1 cl |
