Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
New Alabama mine works thick seam in Blue Creek Basin
Blue Creek mine uses slope sunk during World War I; equipment designed to make it first class operation; unusual type of top coal provides good roof in haulways and aircourses; seam is 7 ft thick and has tender slate top requiring heavy timbering after upper 2-ft stratum of coal has been mined; map of workings; preparation plant capacity is 1500 tons per day of finished coal, working two shifts.
New Alabama mine works thick seam in Blue Creek Basin
Blue Creek mine uses slope sunk during World War I; equipment designed to make it first class operation; unusual type of top coal provides good roof in haulways and aircourses; seam is 7 ft thick and has tender slate top requiring heavy timbering after upper 2-ft stratum of coal has been mined; map of workings; preparation plant capacity is 1500 tons per day of finished coal, working two shifts.
New Alabama mine works thick seam in Blue Creek Basin
Coal Age
Coal Age ; 48
1943
6 pages
Aufsatz (Zeitschrift)
Englisch
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Crooked Creek Project No. 2628, Alabama
NTIS | 1972
Crooked Creek Project No. 2628, Alabama
NTIS | 1973
Crooked Creek Project No. 2628, Alabama
NTIS | 1973
Basin Creek Dam for the water works of Butte, Mont.
Engineering Index Backfile | 1893