The Effects of a retreating longwall on a three-entry gate road system
By: by Richard A. Allwes ... [et al.].
Contributors: Allwes, Richard A.
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;; 8996; Report of investigations (United States. Bureau of Mines) ;; 8996.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1985
Place of publication: Pittsburgh, Pa. (P.O. Box 18070, Pittsburgh 15236)
Language: eng
Number of pages: 19
Subjects: Longwall mining.; Pillaring (Mining); Mine roof bolting.; Gate roads (Mining)
Notes: Bibliography: p. 18-19.