Ground anchor method is one of the most popular reinforcing technology for slope in Korea. For the health monitoring of slope which is reinforced by permanent anchor for a long period, monitoring of the tension force of ground anchor is very important. Optical FBG sensors embedded tendon was developed to measure the strain of 7-wire strand by embedding FBG sensor into the center king cable of 7-wire strand. This FBG sensors embedded tendon has been successfully applied to measure the reinforcing force of ground anchor during four seasons through temperature compensation of the FBG sensors embedded tendon.

• 김영상(전남대학교 해양토목공학과) | Kim, Young Sang
• 도탄만(전남대학교 대학원 건설환경공학과) | Do, Tan Manh
• 성현종(사면재해경감협회 기술연구소) | Sung, Hyun Jong
• 김재민(전남대학교 해양토목공학과) | Kim, Jae-Min