Effects of horizontal stress related to stream valleys on the stability of coal mine openings
By: by G.M. Molinda ... [et al.].
Contributors: Molinda, G. M.
Series: Report of investigations ;; 9413; Report of investigations (United States. Bureau of Mines) ;; 9413.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1992
Place of publication: Washington, D.C
Language: eng
Number of pages: 26
Subjects: Mine roof control.; Rock bursts.; Valleys.; Coal mines and mining -- West Virginia.; Coal mines and mining -- Pennsylvania.
Notes: Includes bibliographical references (p. 24-25).