Influence of subjacent gob on longwall development mining in the Upper Kittanning Coalbed of south-central Pennsylvania
By: by E.R. Bauer, G.J. Chekan, and G.P. Sames.
Contributors: Chekan, G. J.; Sames, Gary P.
Series: Report of investigations ;; 9403; Report of investigations (United States. Bureau of Mines ;; 9403.
Publisher: Bureau of Mines, U.S. Dept. of the Interior
Published: 1992
Place of publication: Washington, D.C
Language: eng
Number of pages: 13
Subjects: Ground control (Mining) -- Pennsylvania -- Ebensburg Region.; Longwall mining -- Pennsylvania -- Ebensburg Region.; Coal mine waste -- Pennsylvania -- Ebensburg Region.
Notes: Includes bibliographical references (p. 13).