Many countries around the world are amplifying interest and studies on irrigation, flood control and environment with concern on serious water problems. Especially for irrigation in water supply vulnerable areas such as coastal areas - islands, business on underwater resource security facilities are promoted to secure stable water resources due to development of society and increase of life quality. Also, various policies such as reuse of leaking underwater, utilization of underwater at waterfront, and artificial recharge, etc are planned and designed. In order to develop small sized underwater resource secure technology, verification of seawater-freshwater interface is executed and how the balance between these will develop is a great interest of coastal areas - islands.
In this study, seawater-freshwater interface behavior analysis experiment was conducted while reflecting properties of coastal areas - islands and executed hydraulic similitude of saltwater intrusion form control technology on abstraction. Key words : Experiments of hydraulic model, Coastal areas, Seawater-freshwater interface

Abstract
 1. 서 론
 2. 소규모 실험실 수리모형 설계
 3. 모형실험에 의한 기초적 연구
  3.1. 염수와 담수의 경계면 거동실험
  3.2. 염수쐐기 실험
 4. 고찰
 5. 결론
 감사의 글
 참고문헌

• 고병련(제주국제대학교 토목공학과) | Byoung-Ryoun Koh (Department of Civil Engineering, Jeju International University)
• 오영훈(제주국제대학교 토목공학과) | Young-Hun Oh (Department of Civil Engineering, Jeju International University) Corresponding author
• 안승섭(경일대학교 건설공학부) | Seung-Seop Ahn (School of Construction Engineering, Kyungil University)