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Mining Publication: Evaluation of Instrumented Cable and Rebar Bolts as Ground Support at a Trona Mine

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.

Original creation date: August 2001

Image of publication Evaluation of Instrumented Cable and Rebar Bolts as Ground Support at a Trona Mine

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.

Authors: LA Martin, CA Dreesbach, R Pakalnis

Conference Paper - August 2001

  • 0.67 MB

NIOSHTIC2 Number: 20021386

20th Intl Conf on Ground Control in Mining. Morgantown, WV: West Virginia University, 2001 Aug; :309-316


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