植物消浪护岸模型实验研究

Model test of vegetation on the bank to attenuate waves and protect embankments

对于在堤岸上种树消浪这一新的护岸工程,根据实际波浪要素和现有实验设备条件确定出几何比尺,选取桧柏树枝作为防浪树的模型,筛选主要影响因素进行量纲分析,确定实验组次,对实验现象和数据作定性和定量的分析,得出防浪林应有相当的宽度,才能起到预期的防浪护岸效果,防浪林过窄,可能会引起“共振”现象,并且斜坡的消浪效果好于平坡,对实际工程可起参考作用。

Planting vegetation on the bank to attenuate waves is a new method to protect the embankment. In the experiment, we fixed the model scale according to actual waves and laboratory equipment, selected some suitable branches of Chinese juniper as the model of mangrove, chose important influencing factors to make the dimensional analysis. After a month of experiment, from the procedure and laboratory findings, we got two formulas for coefficients of attenuated waves, and found that the breadth of the forest to attenuate waves should be big enough. If the breadth is too small, it can lead to “resonant vibration”, and the height of waves after mangrove will be higher.