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Rock burst research and the Coeur d'Alene District.

Authors
McMahon-T
Source
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, IC 9186, 1987 Jun; :1-45
Link
NIOSHTIC No.
10006101
Abstract
This Bureau of Mines report describes the rock burst problem and measures being taken for its alleviation in the deep underground mines of the Coeur d'Alene Mining District in northern Idaho. The geologic features that contribute to rock bursting in that area are discussed and briefly compared with similar features in other burst- prone mining districts throughout the world. Early investigations to understand and control rock bursting are reviewed, and the mechanics of bursting are discussed in terms of the seismic events that produce them. Sources of strain energy, rock failure mechanisms, and the conditions necessary for the release of seismic energy are covered in detail. Rock burst research in the Coeur d'Alene District is described. Included are discussions of the microseismic method as both a research tool and as a rock burst monitoring system, rock destress blasting and preconditioning methods for rock burst control, and stoping methods currently being developed to reduce rock burst hazards.
Keywords
Failure; Sites; Energy-transfer; Rock-drilling; Seismic-waves; Monitoring; Stresses; Underpining; Blasting; Mine-bursts; Underground-mining; Rock-mechanics
Publication Date
19870601
Document Type
IH; Information Circular
Fiscal Year
1987
NTIS Accession No.
PB89-111843
NTIS Price
A04
Identifying No.
IC-9186
NIOSH Division
SRC
Source Name
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, IC 9186
State
ID; WA
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