Determining method of metro range tunnel accident smoke exhaust air speed

The invention discloses a determining method of the metro range tunnel accident smoke exhaust air speed. The method comprises the following steps of (10), measuring the empty tunnel air speed; starting an accident smoke exhaust system and measuring the empty tunnel smoke exhaust air speed when no train is parked in a range tunnel; (20), estimating the true accident smoke exhaust air speed, wherein the empty tunnel smoke exhaust air speed is utilized, and the true accident smoke exhaust air speed is estimated and obtained when the train is parked in the range tunnel according to an empirical formula. The determining method of the metro range tunnel accident smoke exhaust air speed is simple and feasible, accurate and quick. 本发明公开种地铁区间隧道事故排烟风速确定方法，包括如下步骤：(10)空隧道风速测定：在区间隧道无列车停放时，开启事故排烟系统，测定空隧道排烟风速；(20)真实事故排烟风速估算：利用空隧道排烟风速，根据经验公式，估算得到区间隧道有列车停放时的真实事故排烟风速。本发明的地铁区间隧道事故排烟风速确定方法，简单易行、准确快捷。