青云山隧道一号斜井正洞施工通风技术

研究目的:通风技术是隧道施工的重点之一,它直接影响到隧道的施工进度及施工成本.近年来,随着我国高速铁路及客运专线建设的快速发展,我国的铁路隧道越修越多,越修越长,通风技术成为了隧道工程技术人员在施工中必须处理的难题.本文以青云山隧道一号斜井正洞施工通风技术为例,详细阐述了该隧道施工中采用的压入式通风技术.研究结论:随着我国隧道通风设备的发展,高风压、大风量通风机和高强度、大直径柔性风管的出现,特长隧道采用压入式通风技术已经成为可能；该种通风方式简单、方便、快捷,通过合理使用,能够用较少的投入,确保良好的施工环境,保证施工进度,降低施工成本.

Ventilation Technology for Main Portal of 1 # Inclined Shaft of Qingyunshan Tunnel

Research purposes: Ventilation technology is one of the most important parts of tunnel construction and it directly affects the tunnel construction schedule and construction cost.With the rapid development of high-speed railway construction in recent years,the more and more and longer and long railway tunnels are built in China.Thus the ventilation becomes a difficult problem to be dealt with.Taking the ventilation technology for the main portal of the 1# inclined shaft of Qingyunshan Tunnel as an example,this paper introduces the forced ventilation technology used for the tunnel construction. Research conclusions:With the development of ventilating device,the high wind pressure and large air volume ventilation machine with high tenacity and large-diameter flexible ventilating duct has been developed,so it is possible to use the forced ventilation technology for long tunnel.This method is simple,convenient and fast.By reasonable application,the construction cost can be cut,and the good construction environment and construction schedule can be ensured.