A Complete Set of Construction Techniques for Open TBM of Deep Buried Long Tunnels
In recent years,the development of underground engi-neering and tunnel construction in China has been rapid,and the engineering construction center has gradually migrated to the west-ern region.The TBM construction is widely used in deep buried long tunnels due to its economic and environmental benefits,as well as outstanding advantages in excavation efficiency and safety.Taking a water diversion tunnel in Xinjiang as the research back-ground,this paper elaborates on the application of open TBM in deep buried long tunnels,and provides a detailed introduction to TBM construction technology,excavation process,selection of ex-cavation parameters,maintenance of supporting facilities,initial support,and excavation slag discharge.The relevant construction experience provides experience and reference value for the applica-tion of open TBM in deep buried long tunnels.
open TBMdeep buried long tunnelsparameter selec-tiontunnel support