Case Studies of Cable Bolts Using Instrumented King Wires

Details

• Personal Author:
  Curtin RP ; Martin LA ; Pakalnis, Rimas T.
• Description:
  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 to monitor rock mass loads at various field sites (FMC Granger, Getchell, Meikle, SSX, K-2, and Stillwater). Axial and shear loads were determined by strain gauges to levels of instrument accuracy of +/- N or +/- 5 microstrain as these loads were transferred to instrumented cable bolts. The gauges were 12.5 mm long and embedded into 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. By monitoring load on and discplacement of the rock mass, more effective ground support can be selected and installed, which will lead to safer working conditions for miners. [Description provided by NIOSH]
• Subjects:
  Case Reports Mining Occupational Health Safety
• Keywords:
  Cables Case Studies Ground Control Ground Stability Mine Workers Mining Industry Monitoring Systems Monitors Rock Mechanics Safety Equipment Safety Measures Safety Practices

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• Series:
  Mining Publications
• ISBN:
  9789026518270
• Publisher:
  A. A. Balkema
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  District of Columbia ; OSHA Region 10 ; OSHA Region 3 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRL - Spokane Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  2
• NIOSHTIC Number:
  nn:20021385
• Citation:
  Rock mechanics in the national interest: proceedings of the 38th U.S. Rock Mechanics Symposium, DC Rocks 2001, July 7-10, 2001, Washington, D. C. Elsworth D, Tinucci JP, Heasley KA, eds. Vol. II, Lisse, Netherlands: A. A. Balkema, 2001 Jul; 2:1013-1020
• Editor(s):
  Elsworth D; Tinucci JP; Heasley KA
• Federal Fiscal Year:
  2001
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cb9f37501b48b066745d6e94271116497280576d3b0794c1e8fee73ed028a619bb426239594d269ae4ea9052fafae74ab0b085f12e492df015be2d0d0b6e4b0e
• Download URL:
  https://stacks.cdc.gov/view/cdc/220479/cdc_220479_DS1.pdf
• File Type:
  [PDF - 469.54 KB ]