Recently, Large Diameter Shield TBM method is being adapted to several domestic construction sites. Therefore, it is really necessary for the maintenance technology about long-term serviceability and durability of shield tunnel. In this paper, it would arrange the basis for reasonable evaluation of tunnel by the data analyzing through the site investigation concerning the crack and leakage which can occur by the maintenance of domestic large diameter shield TBM method.

• 성주현(한국시설안전공단 선임연구원) | Seong, Joo Hyun Corresponding Author
• 홍선미(한국시설안전공단 연구원) | Hong, Sun Mi
• 신병길(한국시설안전공단 연구원) | Shin, Byung Gil