新乌鞘岭隧道利用既有线通风方案  

Ventilation Scheme of New Wushaoling Tunnel by Using Existing Line

作　　者：邓荐 DENG Jian(China Railway 15th Bureau Group Corporation Ltd.,Shanghai 200070,China)

机构地区：[1]中铁十五局集团有限公司,上海200070

出　　处：《铁路技术创新》2022年第5期35-41,共7页Railway Technical Innovation

基　　金：中国国家铁路集团有限公司科技研究开发计划项目(N2020G040);中铁十五局集团有限公司2019年度科技研发计划项目(2019B3)。

摘　　要：随着我国高速铁路的发展,铁路线路的隧道占比越来越高,长大隧道的设计与施工越来越普遍,隧道通风难度也随之提高。兰张三四线铁路新乌鞘岭隧道地处高原,通风距离长、通风难度大。对比分析斜井洞口压入式通风和利用既有线通风2种方案,确定利用既有线进行通风的方案。该方案可大大减少通风距离,保证隧道内的通风质量,并具有良好的经济效益。With the development of high speed railways in China,tunnels account for an increasingly large portion in railway lines,the design and construction of long and large tunnels are becoming more and more common,and tunnel ventilation is becoming more and more difficult.The new Wushaoling Tunnel of Lanzhou-Zhangye Third and Fourth Line is located in the plateau,featuring difficult ventilation of a long distance.The two schemes,i.e.,forced ventilation via inclined shaft at portal and ventilation by using the existing line were compared and analyzed,and finally the latter was adopted,which can greatly reduce the ventilation distance,ensure the ventilation quality in the tunnel,and deliver good economic benefits.

关 键 词：新乌鞘岭隧道 通风方案 风量 风压 经济效益 

分 类 号：U453[建筑科学—桥梁与隧道工程]