Longwall gate road roof instability and methods of control in the lower Kittanning Coalbed of Central Pennsylvania
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Author
Contributions
- Listak, Jeffrey M. - Contributor
- Krupa, E. D. - Contributor
Publication
1992 - U.S. Dept. of the Interior, Bureau of Mines, Washington, D.C, District of Columbia
Language
English
Word Count
5,000 words, Guess
Page Count
20 pages
Identifiers
- Open LibraryOL1712667M
- OCLC Control Number25832040
- Library of Congress Control Number92014755
Classifications
- DDC622 s
- DDC622/.334
- LCCTN295 .U4
and 1 more
- LCCTN288 .U4
Subjects
Topics
TestingLongwall miningMine roof controlGate roads (Mining)Mine roof control -- TestingLongwall mining -- Pennsylvania -- Cambria CountyGate roads (Mining) -- Pennsylvania -- Cambria County
Places
Series Statement
- Information circular ;
- 9331
- Information circular (United States. Bureau of Mines) ;
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