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In-situ Coal Pillar Strength Study.
Wang-FD; Skelly-WA; Wolgamott-J
For Reference Only At Bureau Libraries :243 pages
This report presents the results of two large-scale field coal pillar strength tests, the results of a series of laboratory small- core sample tests, and the correlation between the field and laboratory tests. The concept of applying laboratory coal sample strength data to predict the in situ coal pillar strength appears to be feasible. The deformation property of large pillars can be obtained successfully by testing the coal sample in the laboratory within acceptable accuracy. There are prevailing directional strength and deformation properties in coal pillars along the butt and face cleat system.
CP; Final Contract Report;
For Reference Only At Bureau Libraries
Colorado School of Mines
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division