There are two parts in the precise inspection of diagnosis and safety: state assessment and stability analysis. The longitudinal crack(more than 1mm wide) on the top surface of retaining wall has been found. To verify the cause and boundary condition, 3D model has been implemented to the current state: strength, dimension, and external load.

• 이경수(한국시설안전공단 시설안전본부 도시철도실) | Lee, Kyung Su 교신저자
• 류호상(한국시설안전공단 시설안전본부 도시철도실) | Ryu, Ho Sang
• 신용석(한국시설안전공단 시설안전본부 도시철도실) | Shin, Yong Suk
• 장영두(서울메트로 토목건축사업소 토목팀) | Jang, Young Doo