砂质海床上离岸海缆最小埋深的确定方法Method for determining minimum buried depth of submarine cable on sandy seabed
周烨琦,张民曦,羊玓雯,喻国良
摘要(Abstract):
海上光缆和电缆故障常常导致重大经济损失。保护海缆免受损坏的最有效方法是将其埋在海床中,但目前有关埋深的设计方法有待深入研究。通过分析砂质海床上海床的普遍冲刷、沙波移动和船锚入侵对离岸海缆安全埋深的影响,研究了汕头塘边湾内的光缆破坏的原因。结果表明,海缆工程设计中应该满足的必要条件:普遍冲刷和沙波波谷的行进将使得海缆的原有埋深变小,变小后的埋深必须仍大于代表性船锚的贯入深度。提出的砂质海床上离岸海缆埋深的计算方法为未来砂质海床上离岸海缆工程设计、施工、维护提供科学依据。
关键词(KeyWords): 海缆;埋深;冲刷;沙波
基金项目(Foundation): 国家自然科学基金项目(52171268)
作者(Author): 周烨琦,张民曦,羊玓雯,喻国良
DOI: 10.13928/j.cnki.wrahe.2022.S1.044
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