Dynamically embedded plate anchors (DEPLAs) are a relatively new anchor type that combine the advantages of dynamically installed anchors and conventional plate anchors. Through three dimensional finite element modelling, this paper first derives the combined loading yield surface of the anchor holding capacity in clay and then uses this yield surface in plasticity analyses to study the anchor trajectory under chain loading. These analyses reveal that the anchor padeye in the current DEPLA design is not optimally located as the anchor will eventually pull out of the seabed when loaded beyond its design capacity. It also shows that there are alternative padeye locations that lead to an equilibrium condition, where the DEPLA attains an ultimate holding capacity. The plasticity analyses are supplemented by simplified closed-form equations that are used in a parametric study to calculate the ultimate DEPLA holding capacity for various padeye positions. The optimal padeye location from the analyses is at a location that has a padeye offset ratio (ratio of the normal to the parallel distance between the padeye and the centre of rotation of the plate) in the range 0.55–0.65, varying slightly with chain loading angle.

动态嵌入板锚（DEPLA）是一种相对较新的锚类型，结合了动态安装锚和传统板锚的优点。通过三维有限元建模，本文首先推导出锚在粘土中的承载力的组合加载屈服面，然后将该屈服面用于塑性分析，研究链加载下锚的轨迹。这些分析表明，当前 DEPLA 设计中的锚板眼未处于最佳位置，因为当负载超出其设计能力时，锚最终会从海床中拔出。它还表明，存在导致平衡条件的替代性Padeye 位置，其中DEPLA 达到最终保持能力。塑性分析由简化的封闭式方程补充，这些方程用于参数研究，以计算各种 padeye 位置的最终 DEPLA 保持能力。分析中的最佳padeye 位置是padeye 偏移比（padeye 与板旋转中心之间的法线与平行距离的比率）在0.55-0.65 范围内的位置，随链加载而略有不同角度。