Geometrically open filters in breakwaters
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Model tests on wave effect on a sand layer under a rock armour layer. Nine process based model tests have been performed with regular waves with a height of 10 cm and a period of 1.2 s. The first two experiments were used to tune the test setup. The other seven experiments had different thickness of the filter layer (df) and different grain size (Df50) of the filter material. Due to limitations in time and availability of the facilities other parameters then the df and Df50 such as the wave height and the slope steepness have been kept constant at a value which is typical for breakwaters or wind waves.
岩护层下方砂层波浪效应模型试验。本研究共开展9组基于过程的模型试验,试验采用波高10 cm、周期1.2 s的规则波。前两组试验用于调试试验装置。剩余7组试验的滤层厚度(df)与滤料粒径(Df50)各不相同。受限于试验时长与设施可用条件,除df与Df50外的其余参数(如波高、边坡坡度)均保持恒定,取值符合防波堤或风浪的典型工况。




