【摘要】 随着隧道通风技术的不断发展，压出式风幕通风在施工隧道中的运用逐渐加深，为了解压出式风幕通风在不同通风参数下的除尘效果，利用Fluent建立隧道通风模型，对压出式风幕通风的风幕倾斜角度进行优化，得到最优通风工况，在此基础上模拟不同通风风量下压出式风幕通风与常见的长压短抽式通风的除尘过程，对比不同通风方式的除尘效果。结果表明：当风幕倾斜角度为30°时压出式风幕通风除尘效果最佳，且压出式风幕通风除尘效果比长压短抽式通风更佳，可以有效降低隧道施工中的粉尘和烟尘，改善隧道作业空气环境。更多还原

【Abstract】 With the continuous development of tunnel ventilation technology, the use of press-out airs curtain ventilation in construction tunnels is gradually deepened, in order to understand the dust removal effect of press-out airs curtain ventilation under different ventilation parameters, the paper used Fluent to establish a tunnel ventilation model, optimize the tilt angle of the press-out airs curtain ventilation to get the optimal ventilation conditions. On this basis, the dust removal process of push-out air curtain ventilation and common long-pressure short-pumping ventilation under different ventilation air volume was simulated, and the dust removal effect of different ventilation modes was compared. The results showed that when the tilt angle of the air curtain is 30°, the dust removal effect of the press-out air curtain ventilation is the best, and the dust removal effect of the press-out air curtain ventilation is better than that of the long pressure and short pumping ventilation, which can effectively reduce the dust and smoke in tunnel construction and improve the air environment of tunnel operation.更多还原