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Safer mine layouts for underground stone mines subjected to excessive levels of horizontal stress.
Iannacchione AT; Marshall TE; Burke L; Melville R; Litsenberger J
Min Eng 2003 Apr; 55(4):25-31
Excessive levels of horizontal stresses cause groundfall hazards in underground mines in the Appalachian Basin. At an underground stone mine in Pennsylvania, a modified stress-control mine layout is reducing the hazardous conditions associated with excessive horizontal stresses. A microseismic monitoring system is in place to measure levels of rock stability and provide information on the effectiveness of the design technique. The microseismic data are supplemented with frequent and extensive mapping of roof falls and roof rock damage. Findings to date show that the stress control layout provides more stable conditions, resulting in a safer environment for the mine workers.
Underground mining; Safety research; Stone mines; Horizontal stress; Ground control
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Issue of Publication
Disease and Injury: Traumatic Injuries
Page last reviewed: March 3, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division