包兰铁路青天寺隧道运营通风及防灾救援设计

青天寺隧道长度超过20 km,隧道的运营通风、防灾及救援(含紧急救援站)等,考虑的因素非常多,本文通过包兰铁路青天寺隧道运营通风及防灾救援设计的工程实例,介绍了特长隧道运营通风及防灾救援设计主要应考虑的问题和工程措施。通过数值模型计算,青天寺隧道运营通风得出可采用自然通风方式的结论;论述了定点救援和隧道内随机停车救援的原理和措施;对隧道内需要设置的通风机功率进行了详细的计算,对不同火灾工况的防灾通风形式、人员的疏散、风机的配置等进行了系统的论述。为以后类似工程设计提供参考。

Design on Operation Ventilation and Disaster Prevention and Relief of the Blue Sky Temple Tunnel at Baotou-Lanzhou Railway

The Blue Sky Temple tunnel in Gansu,China is more than 20 km long.There are many factors to be considered on operation ventilation and disaster prevention and relief(including emergency relief station) of the tunnel.This article describes the main issues to be considered and engineering measures on operation ventilation and disaster prevention and relief design in long tunnels through the example of the design on operation ventilation and disaster prevention and relief of the Blue Sky Temple tunnel at Baotou-Lanzhou railway.The numerical model computation for the Blue Sky Temple tunnel operation shows that it is possible to select the natural ventilation method for the tunnel.The principle and measures for fixed-point rescue and rescue for the stochastic parking in the tunnel are investigated.A detailed computation for the ventilator power needed in the tunnel was carried out,the ventilation form,personnel’s dispersal,air blower’s disposition to the different fire operating mode’s disaster prevention and so on are discussed.It will provide reference to the similar engineering design in the future.