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The use of instrumented split-set rock bolts to monitor strain in the walls of a deep underground mine stope.

Authors
Williams-T; Denton-D; Johnson-J; Maciosek-F; Maslowski-M
Source
Trans Soc Min Metal Explor 2004 Feb; 316:207-214
NIOSHTIC No.
20026115
Abstract
Researchers from the Spokane Research Laboratory of the National Institute for Occupational Safety and Health and personnel from Coeur Silver Valley, Wallace, ID, conducted tests using rock strain strips and Split-Set rock bolts instrumented with strain gauges to monitor wall rock strain at the Galena Mine, Osburn, ID. The objective of the test was to identify whether strain on the rock bolts increased prior to a rock burst. Although results were inconclusive, researchers learned that the Split-Set rock bolts yielded in stick-slip fashion in the highly jointed walls of the stope. The bolts were also bent as stress was redistributed following blasting and subsequent movement along joints in the wall rocks.
Keywords
Mining-industry; Rock-falls; Engineering-controls; Monitoring-systems; Accident-prevention; Underground-mining
CODEN
TMENAE
Publication Date
20040223
Document Type
Journal Article
Fiscal Year
2004
NTIS Accession No.
NTIS Price
ISSN
1075-8623
NIOSH Division
SRL
Priority Area
Research Tools and Approaches: Control Technology and Personal Protective Equipment
Source Name
Transactions of the Society for Mining, Metallurgy, and Exploration
State
WA; CO
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