Use of sheathed explosive charges on longwalls
By: by Richard J. Mainiero and Lon D. Santis.
Contributors: Santis, Lon D.
Series: Report of investigations ;; 9294; Report of investigations (United States. Bureau of Mines) ;; 9294.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1989
Place of publication: Washington, D.C
Language: eng
Subjects: Coal mines and mining -- Explosives -- Testing.; Longwall mining.
Other titles: Sheathed explosive charges on longwalls.
Notes: Includes bibliographical references.