Submarine pipelines are often hit by third-party loads, resulting inpipeline rupture and eventually causing huge economic losses. In orderto prevent the damage to the submarine pipeline from the emergencyanchor operation, it is necessary to protect the pipeline. Based on theANSYS/LS-DYNA software, firstly, a finite element model for theprocess of the anchor from air into the water is established. By settingdifferent weight, height and depth of anchor, this paper gets thevariation in water velocity, different grounding velocity. Then, anotherfinite element model for the process of the anchor gets into the seabedis established. By setting different weight, grounding velocity andseabed sediment, this paper obtains the damage degree of the pipeline,provides a theoretical basis for submarine pipeline safety embedding.The research results can not only protect the pipeline from the damageof anchoring but also save the cost of laying pipeline, which is of greatpractical significance.
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