A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Coal-mine ventilation without doors to control main air currents
Methane ignitions showed that interrupted ventilation (often caused by doors latched open, destroyed, or damaged) was principal cause of methane accumulations that subsequently were ignited; coal mines can be ventilated without doors to control main ventilating air currents; examples of ventilating plans.
Coal-mine ventilation without doors to control main air currents
Methane ignitions showed that interrupted ventilation (often caused by doors latched open, destroyed, or damaged) was principal cause of methane accumulations that subsequently were ignited; coal mines can be ventilated without doors to control main ventilating air currents; examples of ventilating plans.
Coal-mine ventilation without doors to control main air currents
U S Bur Mines -- Information Cir
Kingery, D.S. (author) / Harris, E.J. (author)
1958
13 pages
Report
English
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Mine safety board decision 29; doors for controlling ventilation in coal mines
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