高海拔隧道--青藏铁路风火山隧道施工关键技术

文章结合世界上海拔最高的青藏铁路风火山隧道的施工实践,从工程设计、机械的选型与配套、制氧、供氧系统的研制及应用、冻土、冻岩光爆、保温、控温、防水保温层的铺设、信息化施工和工序网络管理等方面,介绍了冻土隧道施工新技术。

Key construction techniques for the high altitude Fenghoushan tunnel on Qinghai-Tibet railway

In accordance with the engineering practice of Fenghuoshan tunnel on the highest altitude of the world on Qinghai-Tibet railway,this article presents the new building techniques of the tunnel embedded in permafrost in the respect of the engineering design,the choice of equipments and backup systems,the development of oxygen making and supply system,the excavation and smooth blasting in frozen ground,the temperature keeping and control,the installation of waterproofing and thermal insulation layers,the application of observational construction and network project management,etc.