Abstract:

The ventilation technology of Luojiali inclined shaft of West Qinling tunnel is presented in terms of ventilation plan selection, ventilation design and ventilation effect monitoring. The successful application of largeplenum relay ventilation in Luojiali inclined shaft is described in detail. The ventilation technology described is simple, reliable, economical and efficient. In the end, good ventilation effect has been achieved, air pollution induced by dusts has been effectively controlled and safe and rapid construction have been ensured. 

Key words: long inclined shaft, tunnel construction, large plenum, relay ventilation