Modify Selection
- Hazards and exposures:
- Roof falls
- Document types:
- Peer reviewed journal articles
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Results 11 - 20 of 20
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1/1/2011 - Peer reviewed journal articlesIn recent years, the number of some annual ground fall fatalities has approached zero, indicating that significant progress has been made. However, more progress is needed to reduce injuries caused by rock falling between supports and by rib falls.
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1/1/2010 - Peer reviewed journal articlesAn understanding of the geologic and stress conditions which lead to roof falls is necessary to assess the risk of failure and to design roof reinforcement to improve stability.
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8/1/2009 - Peer reviewed journal articlesThis paper presents a blast design technique based on a hydrodynamic method and introduces modifications to account for different explosives from those used in a calibration test.
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12/1/2008 - Peer reviewed journal articlesNIOSH has been actively gathering ground control information in the Illinois Basin in an effort to understand and control difficult mining conditions and has documented best practices for screen installation.
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6/1/2008 - Peer reviewed journal articlesThis paper describes a modeling approach that can be used as a tool to evaluate potential roof failure and optimize the stability of room and pillar layouts.
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11/1/2007 - Peer reviewed journal articlesThis paper discusses a method to determine the roof fall risk using a qualitative risk analysis technique.
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1/1/2007 - Peer reviewed journal articlesA roof-fall hazard-assessment technique was developed based on engineering judgment acquired from extensive underground stone mine experience and on examination of the literature. The technique uses observational processes to assess roof fall hazard.
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1/1/2001 - Peer reviewed journal articlesThis paper summarizes case studies where unusual circumstances required that a longwall retreat into or through previously driven rooms. Two types of roof failure are identified and discussed.
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12/1/1999 - Peer reviewed journal articlesAs underground stone mining expands to deeper cover and more efficient methods are used, effective stone pillar design methods become more important. In this paper, 72 stone mine pillar designs are examined for factors affecting stability.
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1/1/1998 - Peer reviewed journal articlesRoof and rib conditions were observed and assessed in 33 underground stone mines. It was found that selection of the mining horizon and mine layout decisions tremendously influence ground stability.
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Content source: National Institute for Occupational Safety and Health, Mining Program