선박주묘에 의한 풀루크 앵커의 침투깊이 산정을 위한 수치해석

• 영문명: Numerical Analysis for Estimating Penetration Depth by Ship-dragged Fluke Anchor
• 발행기관: 한국연안방재학회
• 저자명: 강하늘 김정훈 전인식
• 간행물 정보: 『한국연안방재학회지』제10권 제2호, 45~56쪽, 전체 12쪽
• 주제분류: 사회과학 > 사회과학일반
• 파일형태: PDF
• 발행일자: 2023.04.30

영문 초록

Anchor penetration by ship anchoring is emerging as a major risk factor for submarine cable. A numerical analysis method was established to predict the anchor penetration depth by ship-dragged fluke anchor in relation to setting the optimal burial depth of submarine cable. The soil resisting forces (bearing force, friction force) generated during the anchor penetration process were calculated for each of the fluke, shank and mooring chain of the anchor. The results of the numerical analysis were compared with the existing chart values of Vryhof (2015). It was found that it is desirable to use the force coefficients of strip foundation for the fluke and shank, and the force coefficients of a single vertical pile for mooring chain. The numerical analysis well reproduced the penetration trajectory in which the inclination angle of the lower surface of fluke gradually converged to zero.

목차

1. 서론

2. 단일 지반조건에 대한 주묘해석

3. 수치해석의 보정 및 검증

4. 결론

감사의 글

References

키워드

Subsea cable Anchor penetration trajectory Ultimate penetration depth Fluke anchor Anchor dragging