Development of a mechanical roof breaker for ground control in longwall operations under massive roof

Author:	Tandanand, Sathit.
Year:	1980
Document Type:	BMRA
Issuing Agency:	Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:8416
Series:	Report of investigations / United States Department of the Interior, Bureau of mines ;
Report Number:	8416
Subjects:	Ground control (Mining)
	Rock mechanics
Link:	https://hdl.handle.net/2027/mdp.39015078466227