Abstract
In the work it is proved that methane explosions with disastrous consequences have become after conversion to high-effective mining of extraction pillar during mining flat and steep coal seams at functioning extracting areas. It is established that during high-efficient mining of extracting areas, first combustion and methane explosions happen at worked space, where they are initiated with occurred and non-noticed places of coal self-ignition. From worked space burning methane outbursts by explosion wave from the cove to the working face and near workings where the explosion develops with coal dust presence. Technical solutions for prevention such accidents are proposed.
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