PROJECTRailway tunnels

Railway tunnels

Railway tunnelsGwangju Songjeong ~ Suncheon Single Track Railway(C1)
Category T/K basic design
Client Korea National Railway
Contractor Kyeryong Construction Industrial
Period September, 07, 2023 ~ April, 17, 2024
Project Information
  • Location

Samdo-dong ~ Dado-myeon, Naju – si, Jeollanam-do

  •  Description
    • Total L = 17,994m(Down line based)
    • 2 Tunnel (Gakdong-Tunnel L = 4,455m, Masan-Tunnel L = 360m)
    • 1 Inclined Tunnel, L = 405m 



  • Technical Issue              
    • Installation of invert throughout the tunnel to prevent the bottom of the tunnel from rising
    • Establishing the shortest inclined tunnel installation plan to minimize evacuation distance
    • Establishment of comprehensive disaster prevention system plan including Safety Zone to improve disaster prevention performance
    • Formulation of reinforcement retaining wall application plan to minimize environmental damage and ensure slope stability