Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ventilation of headings, with special reference to long tunnel ventilation
Underground reorganization of North Wales coal mines involves drivage of several long drifts or tunnels; projects are in progress and constitute single drivages varying between 900 and 3000 yd in length and at depth ranging from 200 to 1000 yd; systems of ventilation employed and measures adopted to overcome ventilation difficulties in drivages. (See also - discussion p 278-81)
Ventilation of headings, with special reference to long tunnel ventilation
Underground reorganization of North Wales coal mines involves drivage of several long drifts or tunnels; projects are in progress and constitute single drivages varying between 900 and 3000 yd in length and at depth ranging from 200 to 1000 yd; systems of ventilation employed and measures adopted to overcome ventilation difficulties in drivages. (See also - discussion p 278-81)
Ventilation of headings, with special reference to long tunnel ventilation
Instn Min Engrs -- Trans
Thomas, T.E. (Autor:in)
1953
15 pages
Aufsatz (Zeitschrift)
Englisch
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