FIELD: mining; may be used in producing of gaseous energy carrier from coal at places of its occurrence. SUBSTANCE: method includes drilling of air blowing and gas discharge holes, supply of blasting, ignition and withdrawal of gaseous energy carrier. Novelty consists in that air blowing holes are located beyond the zone of rock displacement and drilled in rocks under gasified district of coal seam up to opposite boundary of district. EFFECT: higher efficiency. 2 dwg
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SU1836876A3 |
Authors
Dates
1997-12-20—Published
1995-11-16—Filed