NEW PRACTICE OF NATM IN RAILWAY TUNNEL CONSTRUCTION
铁路隧道新奥法施工新实践

The practice of NATM(New Austrian Tunnelling Method) in Dongfeng Tunnel of Shuozhou-Huangh- ua railway is introduced in detail, including such aspects as reducing interference to surrounding rock as possible, controlling deformation and surrounding rock loosening, adjusting support pattern and parameters on time, etc.