NIOSHTIC-2 Publications Search
Ground conditions and the May 13, 1994, rock burst: Coeur d'Alene mining district, Northern Idaho.
Whyatt JK; Williams TJ; White BG
Pacific rocks 2000: rock around the rim--proceedings of the Fourth North American Rock Mechanics Symposium, NARMS 2000, Seattle Washington, July 31-August 3, 2000. Girard JM, Leibman M, Breeds C, Doe T, eds. Brookfield, VT: A.A. Balkema, 2000 Jul; :313-318
Rock bursts continue to be a significant but poorly understood safety hazard faced by miners throughout the Coeur d'Alene Mining District of northern Idaho. Such hazards remain difficult to anticipate. Prediction of individual bursts has proven to be a rare event. Even after a burst, there is often considerable uncertainty over what actually occurred and why. This paper presents results of an in-depth investigation of a rock burst undertaken by NIOSH as part of research aimed at protecting miners from rock burst safety hazards. In this case study, investigators found evidence of unusually intense and rotated stresses in the immediate vicinity of the burst. Moreover, these stress conditions appear to be associated with particular geologic features. Finally, the spatial distribution of stress conditions points to the existence of a strong residual stress system.
Mining industry; Underground miners; Underground mines; Underground mining; Rock bursts; Rock mechanics; Geology
J. K. Whyatt, Spokane Research Laboratory, National Institute far-Occupational Safety and Health, WA, United States
Girard JM; Leibman M; Breeds C; Doe T
Pacific rocks 2000: rock around the rim--proceedings of the Fourth North American Rock Mechanics Symposium, NARMS 2000, Seattle Washington, July 31-August 3, 2000
WA; ID; VT
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division