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Rock mechanics investigations at the Lucky Friday Mine (in three parts): 1. Instrumentation of an experimental underhand longwall stope.
Williams-TJ; Whyatt-JK; Poad-ME
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, RI 9432, 1992 Jan; :1-26
Researchers monitored rock mass response to mining of an experimental underhand longwall stope in Hecla Mining Company's Lucky Friday Mine, Mullan, Idaho. This stope design, the Lucky Friday underhand longwall (lful), was proposed as a means of controlling rock bursting while also allowing increased mechanization of mining operations. This study and mining experience suggest that underhand longwall mining could be considered a feasible mining method for rock-burst-prone ground.
Mining-industry; Longwall-mining; Ground-control; Ground-stability; Geology; Rock-mechanics; Rock-bursts; Rock-falls
Report of Investigations
NTIS Accession No.
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, RI 9432
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division