PROJECTRoad tunnels

Road tunnels

Road tunnelsIcheon ~ Osan Private Highway
Category BTO (Detailed design)
Client Ministry of Land, Infrastructure and Transport
Contractor Kumho E & C
Period June 30, 2015 ~ June 30, 2016
Project Information
  • Location
     Daedae-ri, Yangji-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do ~ Jinu-ri, Docheok-myeon, Gwangju-si, Gyeonggi-do, Korea


  • Description

    • Total L = 8,790m     
    • 4 Tunnels
    • 5 Bridges


  •  Technical Issues
    • Application of various tunnel shapes (2-Arch tunnel, 2-Lane twin tunnel, 3-Lane twin tunnel) according to the road alignment considering interchange which was planned in front of 3-Lane twin tunnel
    • Design of the tunnel portal with shallow soil depth for minimization of environment damages