Field Performance Testing of Fully Grouted Roof Bolts

Details

• Personal Author:
  Compton, Craig S. ; Dolinar, Dennis R. ; Mark C ; Oyler, David C.
• Description:
  More than 80% of U.S. roof bolts are fully-grouted, but about 1500 roof falls are reported each year. Anchorage failure of a fully grouted bolt can occur when the roof is active near the top of the hole. This paper reports on an extensive series of short-encapsulation pull tests (in which the bolts are installed with only 1 ft of resin) that were conducted in the National Institute for Occupational Safety and Health (NIOSH) Mine Safety Research Laboratory and operating mines in WV and PA. The tests confirmed that poor anchorage can be encountered under some weak rock conditions. Suggestions for improving anchorage are included. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Keywords:
  Miners Mining-equipment Mining-industry Rock-falls Rock-mechanics Underground-mining
• Series:
  Mining Publications
• Publisher:
  Society for Mining, Metallurgy, and Exploration, Inc.
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Ohio ; OSHA Region 3 ; OSHA Region 5 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-8
• NIOSHTIC Number:
  nn:20023168
• Citation:
  2003 SME Annual Meeting, Feb 24-26, Cincinnati, Ohio, preprint 03-138. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2003 Feb; :1-8
• Federal Fiscal Year:
  2003
• NORA Priority Area:
  Research Tools and Approaches: Control Technology and Personal Protective Equipment
• Peer Reviewed:
  False
• Source Full Name:
  2003 SME Annual Meeting, Feb 24-26, Cincinnati, Ohio, preprint 03-138
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:876b989198b4ffc439d6b9c12ef1bf6048c7fbceccea9779d1b024771021c055bb9c9efd1236d3ce656e27316495f39d7e73c07bea95007c8bfffe2c00abe9bb
• Download URL:
  https://stacks.cdc.gov/view/cdc/220632/cdc_220632_DS1.pdf
• File Type:
  [PDF - 1.80 MB ]