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Predicting when cutter roof failure may occur.
Bauer-ER; Hill-JL III
Coal Age 1986 Feb; 91(2):1
To prevent cutter roof failure, the U.S. Bureau of Mines recommends staggering of crosscuts. Adding more roof supports such as trusses and cribbing was found to effectively support the roof in areas of clastic dikes. The Bureau warns, however, that these methods were only successful when employed shortly after mining, so it would pay to be on a lookout for the dikes.
OP; Journal Article
Issue of Publication
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division