通风速度对高地温施工隧道通风降温效果影响研究

Simulation Study on Ventilation and Cooling Technology of Tunnel Construction Based on High Ground Temperature

随着我国交通事业的快速发展,隧道成为交通系统中的重要组成部分,然而隧道的施工环境复杂,通常会带来高地热和施工中产生热量等问题,不仅降低了隧道施工的整体效率,还危及到施工工人的安全.该文利用Fluent建立施工隧道通风模型,研究了拱顶压入式通风在不同的通风风速下隧道内的温度和流场分布,得出拱顶压入式通风最佳的通风速度,为高地温施工隧道通风降温提供参考.

With the rapid development of China's transportation industry,the tunnel has become an impor⁃tant part of the transportation system,but the complex construction environment of the tunnel usually brings high geothermal heat and heat generated during construction,which not only reduces the overall ef⁃ficiency of tunnel construction,but also endangers the safety of construction workers.The fluent is used to establish a construction tunnel ventilation model,and the temperature and flow field distribution of vault press-in ventilation in the tunnel under different ventilation wind speeds are studied,and the optimal ven⁃tilation speed of vault press-in ventilation is obtained,which can provide a reference for ventilation cool⁃ing of high-ground temperature construction tunnels.