PROJECTRoad tunnels

Road tunnels

Road tunnelsExpressway NO.400(Gimpo~Paju, C2)
Category T/K Basic & Detailed design
Client Korea Expressway Corporation
Contractor Hyundai E & C
Period December 07, 2018 ~ December, 2019
Project Information
  • Location

  Magok-ri, Hansung-myeon, Gimpo-si, Gyeinggi-do  ~ Yeondasan-dong, Paju-si, Gyeonggi-do, Korea      


  • Description
    • Total L = 6,746m
    • Tunnel L = 2,900m (Shield TBM 2,780m, BOX 120m)     
    • Bridge L = 70m


  • Technical Issues
    • First large diameter (>13m) TBM road tunnel under Han River
    • Application of safe shield TBM method to high water level and complex ground conditions 
    • Improving drilling rate through high-tech mechanized construction and high-quality segment lining
    • Improving evacuation function through multifunctional tunnel cross-section planning