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Short-Encapsulation Pull Tests For Roof Bolt Evaluation At An Operating Coal Mine
  • Published Date:
    2003
  • Source:
    Proceedings of the 22nd International Conference on Ground Control in Mining, August 5-7, 2003, Morgantown, West Virginia. Peng SS, Mark C, Khair AW, Heasley KA, eds., Morgantown, WV: West Virginia University, 2003 Aug; :226-232
  • Language:
    English
Filetype[PDF-313.38 KB]


Details:
  • Supporting Files:
    No Additional Files
No Related Documents.
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  1. Field Performance Testing Of Fully Grouted Roof Bolts
    Personal Author:
    Mark, C.; Compton, C. S.; Dolinar, D. R.; Oyler, D. C.;
    Corporate Authors:
    National Institute for Occupational Safety and Health.
    Conference Authors:
    Society for Mining, Metallurgy, and Exploration (U.S.) Annual Meeting (2003 February 24-26 : Cincinnati, Ohio)
    Published Date:
    2003
    Source:
    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
    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 s...
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  2. Anchorage Pull Testing For Fully Grouted Roof Bolts
    Personal Author:
    Mark, Christopher; Compton, Craig S.; Oyler, David C.; Dolinar, Dennis R.;
    Published Date:
    0/1/1900
    Description:
    Fully-grouted roof bolts comprise more than 80% of the primary roof supports used in U.S. coal mines. However, nearly 1,500 MSHA reportable, non-injury roof falls occur each year, and most of these are attributable to failure of the roof bolt system....
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  3. Investigation Of Fully Grouted Roof Bolts Installed Under In Situ Conditions
    Personal Author:
    Compton, Craig; Oyler, David;
    Corporate Authors:
    Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
    Conference Authors:
    International Conference on Ground Control in Mining (24th : 2005August 2-4: Morgantown, WV)
    Published Date:
    2005
    Source:
    Proceedings of the 24th International Conference on Ground Control in Mining, August 2-4, 2005, Morgantown, West Virginia. Peng SS, Mark C, Tadolini SC, Finfinger GL, Khair AW, Heasley KA, eds. Morgantown, WV: West Virginia University, 2005 Aug; :302-31
    Description:
    The The National Institute for Occupational Safety and Health (NIOSH) Pittsburgh Research Laboratory (PRL) is continuing to investigate the behavior of fully grouted roof bolts in the weak roof rock of the Safety Research Coal Mine (SRCM). This paper...
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  4. Design Of Roof Bolt Systems
    Personal Author:
    Mark, Christopher
    Corporate Authors:
    Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
    Published Date:
    10/1/2000
    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
    Description:
    Roof bolt system design means the selection of the type, length, capacity, and pattern of bolts for a particular application. Despite research efforts dating back 50 years, no design methodology has found wide acceptance. This paper begins by identif...
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  5. Proceedings; New technology for coal mine roof support
    Personal Author:
    Barczak, Thomas M.; Dolinar, Dennis R.; Mark, Christopher; Signer, S. P. (Stephen P.); Tuchman, Robert J.; Wopat, Priscilla F.;
    Corporate Authors:
    Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
    Published Date:
    October 2000
    Series:
    Information circular (National Institute for Occupational Safety and Health) ; 9453
    DHHS publication ; no. (NIOSH) 2000-151
    Description:
    "Roof falls continue to be the greatest single safety hazard faced by underground coal miners. During 1996-99, 44 coal miners lost their lives in rock falls, and nearly 2,400 were injured. In addition, nearly 6,000 noninjury roof collapses were repor...
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