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中文摘要：
抛锚撞击是使海底管道损坏的一个主要因素.针对我国渤海湾水深浅、航运密集,曾发生船舶抛锚作业对其海底管道造成损坏的情况,运用能量分析法,就船舶抛锚对渤海湾海底管道的撞击损伤进行分析.建立海底管道抛锚作业撞击损伤的数学模型,分别对不同埋层厚度、不同混凝土厚度下的海底管道抛锚撞击及产生的凹陷深度等损伤程度进行研究,提出渤海湾海底管道埋设深度的安全域.该研究可为渤海湾海底管道工程建设提供方法和依据.
英文摘要：
Due to high ship density and shallow water depth, submarine pipelines in Bohai bay are damaged by ship anchoring frequently. Most of the damages are caused by anchor impact. A method is proposed based on energy analysis to determine the damages caused by the impact of an anchor of ship. The mathematical model is established to study the relation between the degree of damage and the thickness of concrete cover. A safety criteria of embedment depth for Bohai bay subsea pipelines is proposed. This research provides a guide for submarine pipeline projects in Bohai bay.
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