论文部分内容阅读
随着我国在铁路、公路、水利等基础建设中修建隧道(洞)的数量和长度日益增加、长隧道(洞)内的施工通风问题变的尤为重要,保证为隧道施工人员提供安全、可靠、舒适的工作环境并尽可能地降低工程造价越来越受到各国隧道施工人士的重视。兰渝铁路西秦岭隧道TBM施工中,根据实际情况分阶段采用独头压入式通风与巷道式通风、巷道式通风阶段根据计算合理选择风机位置。实践证明,该通风方案不但满足了施工生产需要,而且节约了施工成本。
With the increasing number and length of tunnels (tunnels) built in our country’s railways, highways and water conservancy projects, the ventilation problems in construction of long tunnels (tunnels) become more and more important to ensure that tunnel construction workers can provide safe, reliable, Comfortable working environment and as much as possible to reduce construction costs more and more by the tunnel construction workers in all countries attention. In the TBM construction of the West Qinling Tunnel of Lanzhou-Chongqing Railway, the single-head push-in ventilation and laneway ventilation are adopted in stages according to the actual conditions. The tunnel-type ventilation stage selects the fan position according to the calculation reasonably. Practice has proved that the ventilation scheme not only meets the needs of construction and production, but also saves construction costs.