Determination of parameters of explosion-hydro treatment of hard-to-collapse roof of hollow coal seams
Abstract
At present, the share of coal seams in the mines of the Soviet Union with hard-to-collapse roofs is quite high.
Similar articles
Control of the stress-strain state of the massif based on the results of radiometric sounding
1990 V. I. Kimkov
Investigation of the stability of ore and rock massifs around the high cleaning chambers during the development of steeply falling potash deposits
1990 A. M. Ryzhenkov, A. A. Ivanov
To the question of estimation of the condition of the underworked rocks of the water protection strata at potash deposits
1990 N. M. Proskuryakov, O. V. Kovalev