Modify Selection
- Hazard prevention and control:
- Pillar design
- Document types:
- Peer reviewed journal articles
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Results 1 - 9 of 9
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1/1/2011 - Peer reviewed journal articlesStone mines in the eastern and midwestern United States use the room-and-pillar method of mining to extract relatively flat-laying sedimentary formations. A survey of pillar performance was carried out to identify potential modes of instability.
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8/1/2001 - Peer reviewed journal articlesThe CMRR quantifies defects in the rock mass and compiles a strength value used for engineering design. The CMRR has been applied to a number of ground stability problems. The CMRR procedure and some of these applications are described in this paper.
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Exploration of Limestone Pillar Stability in Multiple-level Mining Conditions Using Numerical Models5/17/2023 - Peer reviewed journal articlesA study using FLAC3D models to investigate factors that control pillar stability in multiple-level conditions.
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1/1/2020 - Peer reviewed journal articlesA paper presenting a new equation for calculating accurate abutment angles for deeper mining cases. The new equation was tested using both ARMPS2010 and LaModel for the entire case history database of ARMPS2010.
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4/2/2019 - Peer reviewed journal articlesA study on the effect of the discontinuity dip direction on square and rectangular hard rock pillars.
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1/1/2010 - Peer reviewed journal articlesUnderground stone mines in the United States use the room and pillar method of mining in relatively flat laying deposits. Roof and rib falls account for 15% of all lost time incidents. This paper presents the result of a study to improve pillar and roof...
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11/1/2008 - Peer reviewed journal articlesThis paper provides an assessment of the performance of limestone pillars as observed at 98 different locations in 34 mines in the Eastern and Midwestern regions of the United States.
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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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9/1/1997 - Peer reviewed journal articlesThis study describes methods of limiting cascading pillar failure, which occurs when a pillar in a mine layout fails, transferring its load to other pillars, causing failure. Design approaches are shown with examples for coal mining at shallow depth.
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Content source: National Institute for Occupational Safety and Health, Mining Program