Leakage and performance characteristics of large stoppings for room-and-pillar mining

Additional Authors: Thimons, Edward D., Agapito, Joseph F. T., Adam, Marvin E., Brechtel, Carl E.
Year: 1987
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:9148
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 9148
Subject: Concrete stoppings (Mining)--Airtightness
Link: https://hdl.handle.net/2027/mdp.39015078479279

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