Development of a mechanical roof breaker for ground control in longwall operations under massive roof
By: by Sathit Tandanand.
Series: Report of investigations - United States Department of the Interior, Bureau of mines ;; 8416; Report of investigations (United States. Bureau of Mines) ;; 8416.
Publisher: Dept. of the Interior, Bureau of Mines
Published: 1979
Place of publication: Washington
Language: eng
Number of pages: 20
Subjects: Ground control (Mining); Rock mechanics.
Notes: Bibliography: p. 17-18.