해저케이블 매설 보호공법에 대한 수치해석 기반 앵커 관입깊이 평가

• 영문명: Evaluation of AnchorPenetration Depth based on Numerical Analysis forBurial ProtectionMethod of Submarine Cables
• 발행기관: 한국연안방재학회
• 저자명: 장정범(Jung-Bum Jang) 강하늘(Ha-Neul Kang) 김정훈(Jeong-Hun Kim)
• 간행물 정보: 『한국연안방재학회지』제7권 제3호, 139~146쪽, 전체 8쪽
• 주제분류: 사회과학 > 사회과학일반
• 파일형태: PDF
• 발행일자: 2020.07.30

영문 초록

Submarine cables are installed and operated for the stable power supply of island regions, and feature protective measures to counter marine hazard factors. With regard to the protection techniques to prevent damage to submarine cables, the method of digging and embedding the submarine ground is applied the most. However, since there are no design criteria and techniques for such protection facilities, the burial depth of the submarine ground has been calculated only qualitatively and empirically after an ocean survey is conducted. Such an imperfect method has led to assorted damages to submarine cables. Therefore, in this study, to ensure the safety of submarine cables from marine hazard factors, the three-dimensional dynamic interaction analysis model was established for the ship anchor and ground, and the penetration depth of this anchor was calculated through numerical analysis for the burial protection method. These results were compared and evaluated with the results of the full scale test for anchoring and dragging anchor. As a result, the error rate(average) of the anchor penetration depth through the numerical analysis and test was 12.2% in the ground conditions of sand, clay and multi(clay/sand) layers. This error rate was analyzed to be caused by various uncertainties in the test, such as the dynamic impact of the anchor and ground conditions, and the numerical analysis was evaluated to ensure sufficient reliability. The results of this study are expected to be useful in the burial depth calculation of the burial protection method to ensure the safety of submarine cables.

목차

1. 서 론

2. 해저케이블 매설 보호공법의 동적 상호작용해석

3. 해저케이블 매설 보호공법의 실증시험

4. 결 론

References

키워드

Anchor penetration Burial protection method Submarine cables Numerical analysis Full scale test