Shield mechanics and resultant load vector studies

Author:	Barczak, Thomas M.
Additional Authors:	Garson, Robert C.
Year:	1986
Document Type:	BMRA
Issuing Agency:	Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:9027
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	9027
Subjects:	Longwall mining
	Mine roof control
Link:	https://hdl.handle.net/2027/mdp.39015078489161