This paper mainly studies to explore a three-dimensional geometric model including three modules of a sandcastle foundation with optimal stability. Firstly, based on the knowledge of streamline structure, structural mechanics, and fluid mechanics, the most stable sand pile foundation model under the action of tidal current and wave is established. Secondly, by limiting the degree of allowable aggregation, the discrete global optimization algorithm based on the continuous descent method is adopted to find out the optimal water-sand ratio. Finally, we apply the above results to verify the reliability of the optimal model by comprehensively considering the influence of rainfall factors on sandcastles.

中文翻译：

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基于稳定性原理的动态环境中沙堡寿命的优化模拟

本文主要研究探索具有最佳稳定性的包含沙堡基础三个模块的三维几何模型。首先，基于流线结构，结构力学和流体力学的知识，建立了在潮流和波浪作用下最稳定的砂桩基础模型。其次，通过限制可允许的聚集程度，采用基于连续下降法的离散全局优化算法，找出最优的水沙比。最后，我们通过综合考虑降雨因素对沙堡的影响，运用上述结果验证了最优模型的可靠性。