棱体排水的顶部高程应超出下游最高水位，应大于波浪沿坡面的爬高，且不小于下列0.5米。
Its top elevated level must exceed the highest water level downstream, be higher than the wave runup along the slope, and be no less than 0.5 meters.
通过物理模型试验，测量不同底高程条件下防浪墙顶部的越浪量、迎浪面及底面上的波浪压强和防浪墙的整体稳定性。
Through physical model test, overtopping wave, wave pressure at waveward side and bottom, as well as the overall stability of wave screen are measured.
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