Differential wall rock movements associated with rock bursts, Lucky Friday Mine, Coeur d'Alene Mining District, Idaho, USA.
Authors
White BG; Whyatt JK
Source
Rock Mechanics for Industry - Proceedings of the 37th U.S. Rock Mechanics Symposium, Vail, Colorado, June 6-9, 1999. Rotterdam, Netherlands: A. A. Balkema Publishers, 1999 Jun; :1051-1059
Abstract
Various methods of monitoring slip movements on bedding planes, as well as examination of rock burst damage in stopes, suggests that rock bursts in the Lucky Friday Mine are closely associated with these movements. Slip displacements along bedding simultaneously reduce the physical dimensions of stopes and increase compressive stress along stope margins. Such changes, in turn, contribute directly to rock bursts and the sudden failure of volumes of rock and cemented sandfill surrounding stopes. The distribution of seismicity and several mining-induced and premining structures resemble those described in South African gold mines. These suggest fundamental similarities in seismic sources and mechanisms of rock burst damage
Keywords
Mine-shafts; Mining-industry; Ground-stability; Ground-control; Injury-prevention; Safety-measures; Safety-research; Structural-analysis; Statistical-analysis; Accident-prevention; Accident-potential; Rock-bursts; Analytical-models; Analytical-processes
Document Type
Conference/Symposia Proceedings
Editors
Amadei B; Kranz RL; Scott GA; Smeallie PH
Source Name
Rock Mechanics for Industry - Proceedings of the 37th U.S. Rock Mechanics Symposium, Vail, Colorado, June 6-9, 1999
