Rib stability
Subtitle: practical considerations to optimize rib design
By: by W.C. Smith.
Series: Information circular ;; 9323; Information circular (United States. Bureau of Mines) ;; 9323.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1992
Place of publication: Washington, D.C
Language: eng
Number of pages: 16
Subjects: Ground control (Mining); Coal mines and mining -- Safety measures.; Coal -- Geology.; Structural stability.
Notes: Includes bibliographical references (p. 15-16).