Evaluation of Ground Support at a Trona Mine Using Instrumented Cable and Rebar Bolts

Details

• Personal Author:
  Martin, Lewis A. ; Dreesbach, Catherine A. ; Pakalnis, Rimas, PH.D.
• Corporate Authors:
  National Institute for Occupational Safety and Health. Pittsburgh Research Laboratory
• 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 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 micro strain. 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.
• Subjects:
  Mining
• Source:
  Proceedings: new technology for coal mine roof support. Mark C, Dolinar DR, Tuchman RJ, Barczak TM, Signer SP, Wopat PF, eds. Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2000-151; (IC 9453), 2000 Oct; :99-109
• Document Type:
  Text
• Genre:
  Conference Publications
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• NIOSHTIC Number:
  nn:20000893
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a6741f1904e199cc455b284dbd7bcd0664dd94eeb23c8dc640b8bead251becca0a79d25afda6d73046652e20540e423f88c20c1e5ada73b1be83af09bddc60e8
• Download URL:
  https://stacks.cdc.gov/view/cdc/8315/cdc_8315_DS1.pdf
• File Type:
  [PDF - 230.12 KB ]