| 摘要 |
FIELD: mining. ^ SUBSTANCE: method consists in driving mine workings which open and contour extraction pillar, in boring at least one degassing borehole into dome of rock failure, in casing of said borehole with pipes, in pressurisation of annular space in it and in connecting degassing borehole to degassing pipeline. Contouring of mine workings is led at tilt angle to horizon of not less, than 3 degrees. An assembly chamber is situated at the maximal by height geodesic mark of the contoured extraction pillar. The degassing borehole is bored into the dome of rock failure above the assembly chamber from an inclined flank opening mine working. ^ EFFECT: increased safety of mining operations for miners at higher efficiency and simplification of process of isolating exhaust of methane from worked out space of operating mining face. ^ 3 dwg |
