Three-dimensional shield mechanics
By: by Thomas M. Barczak and W. Scott Burton.
Contributors: Burton, W. Scott.
Series: Report of investigations ;; 9091; Report of investigations (United States. Bureau of Mines) ;; 9091.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1987
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 23
Subjects: Mine roof control -- Testing.; Longwall mining.
Other titles: Shield mechanics.; 3-dimensional shield mechanics.
Notes: Includes bibliographical references.