Investigation of longwall gateroad roof support characteristics at Powhatan No. 4 Mine
Subtitle: instrumentation plan
By: by G.J. Chekan and D.R. Babich.
Contributors: Babich, D. R.
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: Washington
Language: eng
Subjects: Coal mines and mining -- Safety measures.; Caving mining -- Safety measures.; Mine roof control.; Gate roads (Mining)
Notes: Includes bibliographical references.