메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
(Korea Maritime and Ocean University) (Korea Maritime and Ocean University) (Korea Maritime and Ocean University) (Korea Maritime and Ocean University)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제40권 제5호(통권 제192호)
오류 신고하기

피인용 0

검색

    초록·키워드

    Subsea pipelines are vulnerable to anchor-induced structural damage during ship mooring operations, particularly from raising and dragging interactions. This study quantified the effects of the pipeline burial depth on the structural damage response under these two loading scenarios in a soft clay seabed. Three-dimensional finite element analyses were conducted using Abaqus/Explicit with the Coupled Eulerian-Lagrangian method, simulating a 6-ton stockless anchor on a soft clay seabed modeled using the Mohr–Coulomb constitutive model. Half-buried (1/2D, Case 1) and unburied (Case 2) conditions were compared using the equivalent plastic strain (PEEQ), von Mises stress, contact characteristics, and energy dissipation as primary damage indicators. In the raising scenario, both pipelines remained within the elastic regime (PEEQ = 0), but the unburied pipeline showed 44% higher von Mises stress, 58.7% greater lateral displacement, and 32% larger resulting displacement compared to the half-buried case. For the dragging scenario, the unburied pipeline showed 4.9 and 2.97 times higher PEEQ and peak contact pressure, respectively, while the half-buried pipeline exhibited 6.7 times more contact nodes and 61% higher plastic dissipation energy. These findings show that pipeline burial provides consistent protection under anchor dragging and raising conditions, underscoring the need for scenario-specific burial design standards.

    최근 본 자료 전체보기