Effects of various longwall chain pillar configurations on gate road stability

Author:	Listak, Jeffrey M.
Additional Authors:	Barton, T. M., Zelanko, Joseph C.
Year:	1988
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:9184
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	9184
Subjects:	Longwall mining
	Pillaring (Mining)
	Gate roads (Mining)
Link:	https://hdl.handle.net/2027/mdp.39015078477638