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Face ventilation for oil shale mining
Leakage and performance characteristics of large stoppings for room-and-pillar mining
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Published Year
1980-1989 (2)
Subject
Concrete stoppings (Mining)--Airtightness (1)
Mine ventilation (1)
Oil-shales (1)
Author
Adam, Marvin E. (2) *
Agapito, Joseph F. T. (2)
Thimons, Edward D. (2)
Brechtel, Carl E. (1)
Brechtel, Carl. E. (1)