Data related to the Master thesis: Stability of closed granular filters under wave loading

RESEARCH INFORMATION: Starting in the 1930’s, many research projects have been performed with the intent to establish rules, which can be used to design granular, geometrically closed filter structures for hydraulic structures. However, for the vast majority of these research projects, the filter structure was loaded by uniform flow, either in the parallel or perpendicular direction. This means that, while for filters under flow loading multiple design options and diagrams are available, the knowledge on design rules for sloped, closed filters under wave loading remained limited. These knowledge gaps mean that, in design practice, often the design criteria for closed filters under flow loading, for instance the original criterion by Terzaghi, are used for the design of closed filters under wave loading, while these have not yet been experimentally verified for this use case.<br> <br> This thesis combines model test results from two historically performed experiment programs on sloped, closed granular filters under wave loading with new experiments, which were conducted especially for this thesis. By analyzing the results from these three research projects, commonly used interface stability criteria for closed granular filters are tested for use in the case of a sloped, closed granular filter under wave loading. Afterwards, a new interface stability criterion for sloped, closed granular filters under wave loading is proposed.

研究概况：自20世纪30年代起，学界已开展多项研究工作，旨在制定可用于水工结构颗粒几何封闭滤层设计的相关规则。然而，绝大多数此类研究中，滤层结构均承受平行或垂直方向的均匀流荷载。这意味着，尽管针对均匀流荷载下的滤层，已有多种设计方案与设计图表可供选用，但针对波浪荷载下倾斜封闭滤层的设计规则，目前仍较为匮乏。此类知识空白使得工程设计实践中，常将均匀流荷载下封闭滤层的设计准则（例如太沙基提出的原始准则）直接套用至波浪荷载下封闭滤层的设计，但这类准则尚未针对该应用场景开展实验验证。<br><br>本论文将两项过往开展的波浪荷载下倾斜颗粒封闭滤层模型试验的结果，与专为本次论文开展的新试验数据相结合。通过对上述三项研究的试验结果进行分析，本论文对现有常用的封闭颗粒滤层界面稳定准则在波浪荷载下倾斜封闭颗粒滤层场景中的适用性进行了验证。在此基础上，本论文提出了一种适用于波浪荷载下倾斜封闭颗粒滤层的新型界面稳定准则。