In general, protection and reinforcement measures on cut slope are often focused natural slopes to slope design are considered as slopes of safety. In this study, stability analysis is carried out and the differences to the factor were safety based on cases of analyzed erosion and surface collapse on boundary between Cut slope and Upper natural slope.

• 허인영(한국시설안전공단 시설안전연구소, 연구원) | Heo, In Young
• 배성우(한국시설안전공단 시설안전연구소, 연구원) | Bae Sung Woo
• 김용수(한국시설안전공단 시설안전연구소 부장, 공학박사) | Kim, Yong Soo