雀儿山隧道建设运营关键技术及创新  

Key Technologies and Innovations in the Construction and Operation of the Que′ershan Tunnel

作　　者：郑金龙 杨枫 蔚艳庆 吴剑[2] 郑波[2] ZHENG Jinlong;YANG Feng;WEI Yanqing;WU Jian;ZHENG Bo(Sichuan Highway Planning,Survey,Design and Research Institute Co.,Ltd.,Chengdu 610041;China Railway Southwest Research Institute Co.,Ltd.,Chengdu 611731)

机构地区：[1]四川省公路规划勘察设计研究院有限公司,成都610041 [2]中铁西南科学研究院有限公司,成都611731

出　　处：《现代隧道技术》2024年第2期272-279,共8页Modern Tunnelling Technology

摘　　要：国道317线雀儿山隧道是世界上海拔最高的超特长公路隧道。针对隧道面临的严寒缺氧的恶劣气候条件,建设团队首创了高海拔隧道“气象选线”的设计理念,建立了海拔5000 m的隧道通风计算标准,创新性地提出高海拔隧道结构综合抗防冻技术,明确了基于海拔高度与人员劳动强度的高海拔隧道施工供氧标准,保障了隧道于2017年超预期建成通车。隧道运营后,研究团队进行了持续测试与改进,优化了非对称阶梯型的隧道保温设防方法,建立了满足高海拔季节性冻土区高耐久性的隧道衬砌结构,明确了公路隧道海拔高度分级标准与综合设防原则。雀儿山隧道建设运营关键技术为我国高海拔公路隧道建设与运营提供了重要技术支撑。The Que'ershan Tunnel on G317 is the highest-altitude ultra-long highway tunnel in the world.Faced with harsh climatic conditions of severe cold and hypoxia,the construction team pioneered the design concept of"meteorological routing"for highaltitude tunnels,established tunnel ventilation calculation standards for altitudes of 5,000 m,innovatively proposed comprehensive anti-freezing technology for high-altitude tunnel structures,and de⁃fined oxygen supply standards for high-altitude tunnel construction based on altitude and labor intensity,ensuring that the tunnel was completed and opened to traffic ahead of schedule in 2017.After the tunnel was put into opera⁃tion,the research team conducted continuous testing and improvements,optimized the asymmetric stepped tunnel insulation defense method,established a tunnel lining structure with high durability for high-altitude seasonally fro⁃zen soil areas,and defined the altitude grading standards and comprehensive defense principles for highway tunnels.The key technologies for the construction and operation of the Que'ershan Tunnel provide important technical sup⁃port for the construction and operation of high-altitude highway tunnels in China.

关 键 词：雀儿山隧道 高海拔 严寒缺氧 综合抗防冻 制氧供氧 

分 类 号：U459.2[建筑科学—桥梁与隧道工程]