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Empirical Methods For Coal Pillar Design; Proceedings Of The Second International Workshop On Coal Pillar Mechanics And Design
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1999
Source: Proceedings of the Second International Workshop on Coal Pillar Mechanics and Design, Pittsburgh, PA: National Institute for Occupational Safety and Health, (NIOSH) 99-114, IC-9448, 1999 Jun; :145-154
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Description:Empirical methods involve the scientific interpretation of real-world experience. Many problems in ground control lend themselves to an empirical approach because the mines provide us with plenty of experience with full-scale rock structures. During the past 10 years, powerful design techniques have emerged from statistical analyses of large databases of real-world pillar successes and failures. These include the Analysis of Retreat Mining Pillar Stability (ARMPS), the Analysis of Longwall Pillar Stability (ALPS), the Mark-Bieniawski rectangular pillar strength formula, and guidelines for preventing massive pillar collapses. In the process, our practical understanding of pillar behavior has been greatly enriched.
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