风道抽出式与压入式隧道通风效果的实验研究

Experiment research on tunnel ventilation effect of the plenum ventilation and the exhaust ventilation

针对风道抽出式和压入式隧道通风系统风量难以平衡的问题,提出采用改变隧道与风道交角的方法.通过理论分析和模型实验得出风道抽出式和压入式隧道通风系统的性能差异,采用隧道与风道不同交角的方法能有效解决风量不均衡问题,并为其应用到实际工程中提供了实验依据.

Considering the problem of the plenum ventilation and exhaust ventilation＇ s air quantity difficult to balance, this paper suggested a new approach to change the angle of intersection of the tunnel and the air flue. Through a tunnel model test and experimental analysis, the result indicated that the plenum ventilation and the exhaust ventilation＇ s performance is different, this method can effectively solve the airflow quantity imbalance problem, this provides an experimental basis for applying this approach into practical engineering.