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Longwall retreat of gate road pillars
  • Published Date:
    1993
  • Language:
    English
Filetype[PDF-1.22 MB]


  • Supporting Files:
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  2. Effects of various longwall chain pillar configurations on gate road stability
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    Published:
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    Personal Author:
    Barron, Lance R.; DeMarco, Matthew J.;
    Corporate Author:
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    Published:
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