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首页> 外文会议>Techno-Ocean 2016 : Return to the Oceans >Seepage flow analysis on caisson-type breakwater reinforced with sheet piles by using the SPH method
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Seepage flow analysis on caisson-type breakwater reinforced with sheet piles by using the SPH method

机译：SPH法分析板桩加固沉箱式防波堤的渗流

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摘要

The understanding of the collapse mechanism of a caisson-type breakwater has been an urgent task to reduce the projected damages caused by next millennium tsunamis. A variety of research has been done to understand this phenomenon further. From the current observations, the seepage-induced piping phenomenon, which is caused by the bearing capacity degradation inside a mound, is determined as one of the main causes. With the aim of moderating the bearing capacity degradation, a design to reinforce a mound by utilizing sheet piles has been proposed. Although the effectiveness of sheet piles installation has been confirmed through some experimental tests, the optimized design to determine the dimension and position of the sheet piles has not been established yet. Numerical simulation, which can evaluate the effect of the installed sheet piles accurately, is desired to design durable and economical breakwaters. In this study, a 3D numerical simulation based on a particle method is implemented by considering sheet piles inside a mound, and its accuracy is discussed by comparing it with experimental tests.
机译：了解沉箱式防波堤的倒塌机理一直是减少下一个千年海啸造成的预计损失的紧迫任务。已经进行了各种研究以进一步理解该现象。根据目前的观察，由土丘内部的承载能力下降引起的由渗流引起的管道现象被确定为主要原因之一。为了减轻承载能力的降低，已经提出了一种利用板桩来加固土墩的设计。尽管通过一些实验测试已经证实了板桩安装的有效性，但是尚未确定确定板桩尺寸和位置的优化设计。为了设计耐用且经济的防波堤，需要进行数值模拟，以准确评估已安装的板桩的效果。在这项研究中，通过考虑土墩内部的板桩来实现基于粒子方法的3D数值模拟，并通过与实验测试进行比较来讨论其精度。

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