• Location

 Bagwol-dong ~ Gyo-dong, Gangneung-si, Gangwon-do

•  Description
• Total L = 7,412m
• Tunnel L = 3,096m(Shield TBM Tunnel L = 2,654m, Station Tunnel L = 442m)
• 3 adits

• Technical Issue              
• Launch of TBM on bedrock layer and an upward advance formaintenance of  TBM alignment
• Mini pipe roof reinforcement considering the stability of pile foundation under Gangneung Station

• Shield TBM advance preceding 2Arch tunnel considering Gangneung Station Safety

• Ground reinforcement of Namdae stream considering the improvement of advance performance in sand gravel layer

• Minimization of the number of adits considering Shield TBM tunnel stability