THE PROBLEM OF DEVELOPMENT OF THE INCREASING PERMEABILITY METHOD FOR COAL SEAMS PRONE TO SPONTANEOUS COAL AND GAS AND ROCK OUTBURSTS
The results of laboratory experimental research of plastic mass charging in the coal seam sample being in three-dimensional stress state are given.
On the assumption of sample measuring of effective electrical resistance to «Direct curren», also its filtration properties, the authors estimated the growth of the medium fracturing (jointing) with pulsed injection into a drilled well of plastic mass.
Its determined that the medium permeability increasing around the drill can be achieved using dynamic force, as a result an additional fractional network appears improving methane drainage of borehole zone.
Thus, a smaller or dense additional fractional network of rated length can be obtained around the borehole by selecting a plastic mass with the certain dynamic-viscosity coefficient.
Авторы: V.G. Smirnov, V.V. Dirdin, T.L. Kim
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