Since more than 70% of our country is made of mountains, a lot of underground facilities and tunnels are used for efficient use of limited land space. Recently, Shield TBM method has been used a lot since 1980. In this paper, we selected add factors for Damage factors of shield TBM method. And we analyzed weighting factors using AHP method.

• 성주현(한국시설안전공단) | Seong, Joo Hyun
• 변요셉(한국시설안전공단) | Byun, Yo Seph
• 이유석(한국시설안전공단) | Lee, Yu Seok
• 박광순(한국시설안전공단) | Park, Kwang Soon
• 신철식(한국시설안전공단) | Shin, Cheol Shik