A4 section at the Liupanshan Tunnel is taken as the object in this paper, and the simulation of tunnels water inrush based on FLUENT is taken. Features of the water flow are gotten in tunnels. The escape routes are designed with the conclusion of simulation and the specific cir-cumstance at the engineering site, and achieve good results in the emergency drills of tunnel water inrush. This can provide the basis of emergency plan and pro disaster handle for tunnels water inrush.%以六盘山隧道A4标段为研究对象，进行了基于FLUENT的隧道突涌水仿真模拟计算，得到了涌水的流通特点，参照模拟计算结论，并结合现场实际，设计了逃生路线，在隧道突涌水应急演练中取得了较好效果，可为制定隧道突涌水应急预案与临灾处理提供依据。
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