近年铁路建设快速发展，特别是客运专线隧道由于速度高，曲线半径大产生了很多长大隧道，部分长度在7 km以上的隧道普遍设计有斜井，实现了“长隧短打”的目的。往往一些长度在5～7 km左右的隧道，由于考虑地形、投资等因素大量采用双向独头掘进的办法，导致独头掘进的长度在3 km以上，通风难度较大。结合理论与实践论述通风理论设计和实际施工方法，希望对其他隧道有借鉴意义。

With the rapid development of the construction techniques in the railway tunnels in China, lots of long tunnels are planned, part of which ( more than 7 km long ) are constructed using the inclined shafts to reduce the boring length of each tunnel. However, due to the consideration of circumstance and investment, some tunnels are bored only in two directions that results in the difficult ventilation in the construction. The design of ventilation in Feiluan tunnel is presented in this paper, which can be reference of other tunnels.