Pillar and Roof Span Design Guidelines for Underground Stone Mines

DHHS (NIOSH) Publication Number 2011-171, May 2011
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Pillar and roof span stability are two essential prerequisites for safe working conditions in room-and-pillar mines. This document presents the results of research conducted by NIOSH in cooperation with participating underground stone mines to develop generally applicable guidelines for designing stable pillars and roof spans in stone mines.

Format: PDF
Language: English (US)
Size: 6 MB
Developed by: National Institute for Occupational Safety and Health
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Suggested citation

NIOSH [2011]. Pillar and roof span design guidelines for underground stone mines. By Esterhuizen GS, Dolinar DR, Ellenberger JL, Prosser LJ. Pittsburgh, PA: U. S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2011-171, IC 9526.

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Published: June 22, 2026
Updated: September 20, 2012

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Reviewed: September 20, 2012

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