Horizontal and vertical load transferring mechanisms in longwall roof supports
By: by Thomas M. Barczak and David E. Schwemmer.
Contributors: Schwemmer, David E.
Series: Report of investigations ;; 9188; Report of investigations (United States. Bureau of Mines) ;; 9188.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1988
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 24
Subjects: Mine roof control.; Longwall mining.
Notes: Includes bibliographical references.