LIQUIDATION METHOD FOR WATER BREAK THROUGH VERTICAL BOREHOLE Russian patent published in 2005 - IPC

FIELD: mining industry, particularly elimination of emergency situations.

SUBSTANCE: method involves closing borehole cross-section with extendable means; arranging predetermined volume of non-combustible material above the means, wherein the volume is determined from a given relation; discharging all non-combustible material in the borehole at a time and further distributing portions of non-combustible material having volumes of not less than volume of incoming water. Non-combustible material includes clay and pourable components which are laid in layers above the means, wherein clay volume is equal to pore volume of pourable component.

EFFECT: increased reliability of borehole sealing and water burst liquidation.

3 dwg, 1 ex