A Method for the Selection of Rock Support Based on Bolt Loading Measurements

Details

• Journal Article:
  Proceedings of the 16th International Conference on Ground Control in Mining, August 5-7, 1997, Morgantown, West Virginia
• Personal Author:
  Signer, Stephen P. ; Cox, Dennis ; Johnston, Joanne L.
• Description:
  A method to assist in the evaluation and selection of roof bolts using in situ measurements of roof bolt loading has been developed by researchers of the Spokane Research Center, National Institute for Occupational Safety and Health. Both axial and bending forces are measured by strain gauges at many locations along the length of fully grouted bolts during various stages of mining. This information is then used to (1) predict bolt loading for variations in bolt spacing, grade, and diameter, (2) calculate the design changes necessary in zones where bending loads are high, and (3) determine if bolt length is adequate. Results from several case studies of full-column bolt loading in coal mine gate roads are use to illustrate the design method. This knowledge will give design engineers a tool for the selection of roof support systems that will improve underground safety by reducing roofbolt failures. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety Software
• Keywords:
  Mining-industry; Underground-mining; Rock-falls; Ground-control; Ground-stability
• Source:
  Proceedings of the 16th International Conference on Ground Control in Mining, August 5-7, 1997, Morgantown, West Virginia. Peng SS, Holland CT, eds., Morgantown, WV: West Virginia University, 1997 Aug; :183-190
• Series:
  Mining Publications
• ISBN:
  0939084569
• Publisher:
  West Virginia University
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  OSHA Region 10 ; OSHA Region 3 ; Washington ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRL - Spokane Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  12 pdf pages
• NIOSHTIC Number:
  nn:20024501
• Editor(s):
  Peng SS; Holland CT
• Federal Fiscal Year:
  1997
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1c2f0271ed83b8c26e406c66ae21af36ad13d1899c0efdfe594f3789e237a1815cfc45e2dc02e146ac48f95f3fab3cfdadccaee7a429280c4e0cd80a56cd8ec3
• Download URL:
  https://stacks.cdc.gov/view/cdc/9107/cdc_9107_DS1.pdf
• File Type:
  [PDF - 421.43 KB ]