高海拔铁路长大隧道斜井与竖井接力通风技术探讨

DISCUSSION ON RELAY VENTILATION TECHNOLOGY OF INCLINED SHAFT AND SHAFT IN LONG TUNNEL OF HIGH ALTITUDE RAILWAY

针对高原长大隧道需要设置辅助施工坑道时,由于其特殊的高原环境及曲折的通风线路,大幅折减了通风设备功率,从而给施工通风技术提出了更高的要求。依据成兰铁路松潘隧道工程,通过理论研究与施工现场相结合,探讨分析了高原铁路隧道斜井施工常规压入式通风技术与抽排式竖井通风相结合的通风模式和效果,总结出了该种通风模式的优越性、经济性,提高了隧道施工作业环境,保证了施工安全。

In this paper,for the plateau long tunnel,the special plateau environment and tortuous ventilation line greatly make the power of ventilation equipment reduced,thus putting forward higher requirements for the construction ventilation technology.This paper on the basis of chenglan railway pine pan tunnel engineering,through the theoretical research and construction site,discusses the plateau railway tunnel inclined shaft ventilation technology and drainage shaft ventilation ventilation mode and effect,summarizes the superiority of the ventilation mode,economy,improve the tunnel construction operation environment,ensure the construction safety.