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Research Study of Coal Mine Rock Reinforcement.
Lang TA; Bischoff JA
NTIS: PB/82-218041 :227 pages
Concepts and equations have been developed to quantitatively determine stability of a rock-bolted coal mine roof as a structural (beam-arch) member consisting of reinforced rock units. The equations took into account rock-bolt tension, length, spacing, and orientation; size of opening; strength and physical properties of the rock; and loads from distressed rock. Using sensitivity analyses and the results from relevant previous analytical and physical model investigations, the equations were critically reviewed. It was concluded that the equations can essentially be validated by using small-scale physical models and the full size mine entry model at the Bureau of Mines Spokane Research Center.
CP; Final Contract Report;
NTIS Accession No.
Leeds, Hill and Jewett, Inc.
Page last reviewed: November 12, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division