PROJECTSubway tunnels

Subway tunnels
Subway tunnelsSeoul Subway Line 4 Extension (Jinjeop C3)
Category T / K Basic & Detailed design
Client Korea Rail (KR) Network Authority
Contractor Korea Development Corporation
Period June 11, 2014 ~ May 30, 2015
Project Information
    • Location
      Naegok-ri, Jinjeop-eup, Namyangju-si, Gyeonggi-do ~ Yangji-ri, Onam-eup, Namyangju-si, Gyeonggi-do, Korea

     

    • Description
      • Total L = 3,188m
      • Tunnel L = 1,030m
      • Bridge L = 1,815m
      • Station L = 214m      

     

    • Technical Issues  
      • Design of watertight tunnels under the existing stream to preserve the environment     
      • Design of auxiliary reinforcement methods with large diameter steel pipes, eco-friendly grouting to cutoff the groundwater inflow and non-explosive excavation method for the safety of underwater tunnel     
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