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Longwall retreat of gate road pillars
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CITE Title : Longwall retreat of gate road pillars Personal Author(s) : Listak, Jeffrey M.;Bauer, Eric R.; Corporate Authors(s) : United States. Bureau of Mines. Published Date : 1993 Series : Report of investigations (United States. Bureau of Mines) ; 9444 URL : https://stacks.cdc.gov/view/cdc/9552
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Personal Author:
Listak, Jeffrey M. ; Bauer, Eric R. ;
1993 | Report of investigations (United States. Bureau of Mines) ; 9444
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[PDF - 1.22 MB]
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Effects of various longwall chain pillar configurations on gate road stability
Cite
CITE Title : Effects of various longwall chain pillar configurations on gate road stability Personal Author(s) : Listak, Jeffrey M.;Zelanko, Joseph C.;Barton, T. M. (Timothy M.); Corporate Authors(s) : United States. Bureau of Mines. Published Date : 1988 Series : Report of investigations (United States. Bureau of Mines) ; 9184 URL : https://stacks.cdc.gov/view/cdc/10443
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Personal Author:
Listak, Jeffrey M. ; Zelanko, Joseph C. ; ...
1988 | Report of investigations (United States. Bureau of Mines) ; 9184
Description:
"The Bureau of Mines conducted a field study to assess the performance of various chain pillar configurations in terms of gate road entry stability. V...
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[PDF - 1.03 MB]
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[PDF - 1.03 MB]