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Evaluation of instrumented cable and rebar bolts as ground support at a trona mine.

Authors
Martin-LA; Dreesbach-CA; Pakalnis-R
Source
Proceedings of the 20th International Conference on Ground Control in Mining, August 7-9, 2001, Morgantown, West Virginia. Peng SS, Mark C, Khair AW, eds., Morgantown, WV: West Virginia University, 2001 Aug; :309-316
Link
NIOSHTIC No.
20021386
Abstract
Instrumented cable bolts developed at the Spokane Research Laboratory of the National Institute for Occupational Safety and Health were used in conjunction with existing ground control systems to monitor rock mass loads at Tg Soda Ash's trona mine, Granger, WY. Axial and shear loads were determined to levels of strain gauge accuracy of +/-5 N or +/-5 microstrain. These gauges were embedded in a remanufactured king wire that replaced the conventional king wire. Cable bolt performance, quality of grout, and installation techniques were also assessed. By using instrumented cables, a mine operator can determine axial load along the cable at predefined gauge locations. These data provide necessary input for an operator to design a safer working environment for miners.
Publication Date
20010807
Document Type
Conference/Symposia Proceedings
Editors
Peng-SS; Mark-C; Khair-AW
Fiscal Year
2001
NTIS Accession No.
NTIS Price
ISBN No.
0939084569
NIOSH Division
SRL
Source Name
Proceedings of the 20th International Conference on Ground Control in Mining, August 7-9, 2001, Morgantown, West Virginia
State
WV; WA; WY
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