Investigation of longwall gateroad roof support characteristics of Powhatan no. 4 mine : instrumentation plan
By: by G.J. Chekan and D.R. Babich
Contributors: Babich, D. R.; United States. Bureau of Mines
Series: Report of investigations -- 8628; Report of investigations (United States. Bureau of Mines) -- 8628
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1982
Place of publication: Pgh. [i.e. Pittsburgh], Pa
Language: eng
Subjects: Coal mines and mining -- Safety measures; Caving mining -- Safety measures; Ground control (Mining)
Notes: Includes bibliographical references