Pillar Sizing

Mrugala, Marek J.
Organization: International Conference on Ground Control in Mining
Pages: 8
Publication Date: Jan 1, 1989
Email to a Friend Abstract
Coal strength based on scaled uniaxial compressive strength from the laboratory and back calculations from in-mine observations of pillar stability indicate that material strength scaling rules are open to debate. Analyses presented indicate that the application of scaling factors lower than 0.5 provide a better correlation with field observations of pillar stability.
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