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A Study on ventilation characteristics in bidirectional traffic tunnels – with emphasis on the natural ventilation
Journal of Korean Tunnelling and Underground Space Association
The standards of ventilation system for bi-directional tunnel have not been established now. For this reason, with regard to the bi-directional tunnel below 1km, some problems have been appeared in ventilation capacity designing and in determiningwhether the mechanical ventilation system is needed or not for each case. In this study, we examine the characteristics of natural ventilations, analyze ongoing ventilation design casesfor bi-directional tunnels and classifythose cases into two groups.doi:10.9711/ktaj.2014.16.6.561 fatcat:isbs635ourdc7pcee3ggugrbvm