现有隧道内通风量计算偏保守，往往需开启更多风机，导致能源浪费严重。本文提出一种考虑随机自然风影响下的隧道内通风量计算方法。将风频引入隧道通风量计算中，指出隧道内风频的两种表示方法，离散型风频分布和韦布尔风频分布，通过最小误差逼近算法计算韦布尔风频分布中的尺度系数A和形状系数K。通过算例可得，进口处考虑随机风比不考虑随机风的通风量多37.8%，说明考虑随机风影响可明显降低风机开启数量。

The current ventilation calculation in tunnels is conservative, often requiring more fans to be turned on, resulting in serious energy waste. This paper proposes a ventilation calculation method for tunnels considering the influence of random natural wind. Introducing wind frequency into the calculation of tunnel ventilation, two representation methods for wind frequency inside the tunnel are pointed out, namely discrete wind frequency distribution and Weibull wind frequency distribution. The scale coefficient A and shape coefficient K in the Weibull wind frequency distribution are calculated using the minimum error approximation algorithm. Through the example, it can be concluded that the ventilation volume considering the random wind at the inlet is 37.8 % more than that without considering the random wind, indicating that considering the influence of random wind can reduce the number of fan openings.

U45

宁夏重点研发计划项目（2021BDE13005）；宁夏青年科技人才托举工程项目（[2023]6）