Calculation of the minimum width of pillars during combine mining of potash seams
Abstract
Let n interpass healds of width a be left in the chamber of width L to support the roof. Let's find the minimum value of a ...
Область исследования:
(Archived) Without section
Funding:
None
Similar articles
Investigation of the influence of elevated temperature values on strength and deformation properties of rocky rocks
1980 S. D. Shcherbakov, P. N. Yashin
Calculation of the main parameters of the combined method of unstrengthening of hard-to-collapse rocks
1980 V. G. Bezkaravayny, G. I. Morozov
Calculation of bearing pressure during longwall face approach to the panel drift.
1980 A. A. Borisov, N. N. Kaidalov, V. G. Labazin