| 羊玓雯, 张民曦, 喻国良, 王闻恺.霍尔锚在粉砂质海床中的贯入深度分析[J].海洋工程,2025,(6):59~66 |
| 霍尔锚在粉砂质海床中的贯入深度分析 |
| Analysis of penetration depth of Hall anchors in silt |
| 投稿时间：2024-09-11 |
| DOI：10.16483/j.issn.1005-9865.2025.06.006 |
| 中文关键词: 霍尔锚 落锚 贯入深度 粉砂质海底 |
| 英文关键词:Hall anchor anchor drop penetration depth silty seabed |
| 基金项目:国家自然科学基金项目（52171268） |
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| 摘要点击次数: 85 |
| 全文下载次数: 29 |
| 中文摘要: |
| 大型船舶落锚贯入海床往往危及海底光缆等结构物的安全。研究针对霍尔锚在粉砂质海床中的意外落锚贯入深度，开展了94组物理模型试验，观测分析了不同锚质量、触地速度及底床抗剪强度对贯入深度的影响。分析表明：在文中工况范围内，锚质量、触地速度和沉积底床抗剪强度分别与最大贯入深度呈现三次多项式、线性和对数关系。基于量纲分析和回归方法，提出了最大贯入深度的计算公式，该公式得到了其他学者的数据验证。室内试验和野外试验的相对误差低于20%，表明该公式的适应性广，且计算精度较高，可为落锚对底床结构物的灾害评估提供技术支撑。 |
| 英文摘要: |
| The unintended seabed penetration of large vessel anchors can pose a serious threat to subsea structures such as submarine cables. This study investigates the penetration depth of accidentally dropped Hall anchors into silty seabeds. A total of 94 physical model tests were conducted to examine the effects of anchor mass, touchdown velocity, and seabed shear strength on maximum penetration depth. The results show that, within the scope of this study, the anchor mass, touchdown velocity, and sediment shear strength exhibit cubic polynomial, linear, and logarithmic relationships, respectively, with the maximum penetration depth. Based on dimensional and regression analyses, an empirical formula was proposed to estimate the maximum penetration depth, which was validated using data from previous studies. The relative error between the predicted and observed values was found to be below 20%, indicating the formula’s wide applicability and high predictive accuracy. These results provide technical support for hazard assessment of seabed structures affected by anchor drops. |
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