In this study various investigations were carried out to analyze the causes of leakage for 20 years on the slope of the downstream side of the dam during the ○○ dam precision safety diagnosis. Analysis showed that the possibility of underground water flowing through the valley section of the mountain area extremely low, and that direct leakage of the reservoir's freshwater was confirmed as the main leakage path.

Abstract
 1. 서 론
 2. 자료분석 및 현황조사
 3. 누수원인 분석
  3.1 전기비저항탐사
  3.2 RSV 지반탐사
  3.3 수질분석
  3.4 댐 상류면 수중조사 및 추적자조사
 4. 결 론
 참고문헌

• 장중렬(한국시설안전공단 수리시설실) | Jang Jung Ryeol 교신저자
• 하재석(한국시설안전공단 수리시설실) | Ha Jae Seok
• 손정훈(한국시설안전공단 수리시설실) | Son Jeong Hun
• 박재진(한국시설안전공단 수리시설실) | Park Jae Jin
• 김동주(한국시설안전공단 수리시설실) | Kim Dong Ju