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Mining Publication: Assessing Roof Fall Hazards for Underground Stone Mines: A Proposed Methodology

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March 2006

Image of publication Assessing Roof Fall Hazards for Underground Stone Mines:  A Proposed Methodology

The potential for roof falls in underground mines remains a clear and present danger for mine workers. An investigation of ground conditions in nearly 50% of the Nations underground stone mines found that the state of roof stability is primarily determined in a limited and subjective manner. These large-opening mines, with roof heights of typically 7 m or more, make physical observation difficult. Although some mines use monitoring techniques to gain additional information on roof stability, this practice is usually short-term and localized to address ground conditions in a particular section or part of the mine. A methodology to assess the risk for a roof fall is proposed in a preliminary fashion based on engineering judgment acquired from extensive underground stone mine experience and examination of related literature. The proposed method uses an observational technique to identify the risk of roof falls in three categories. Case study scenarios provide a realistic picture of model implementation. Providing the mine-level decision-maker with an accurate assessment tool to ascertain the level of risk related to ground conditions is expected to reduce mine worker injuries and fatalities. Moreover, the presences of danger can be overcome with a clear picture of quantified ground conditions.

Authors: AT Iannacchione, LJ Prosser, GS Esterhuizen, TS Bajpayee

Conference PaperMarch - 2006

  • Adobe Acrobat - Portable Document Format (.PDF)

    0.20 MB

NIOSHTIC2 Number: 20029908

2006 SME Annual Meeting and Exhibit, March 27-29, St. Louis, Missouri, preprint 06-059. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2006 Mar; :1-9

 
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