底部透空不透水建筑物波压力研究

Study of Wave Pressure on the Buildings with Permeable But Impermeable Bottom

底部透空不透水建筑物是近海工程中的一种新型结构,与传统水工建筑物相比,其能灵活适应基床不发生变形、阻止波浪进入后方造成破坏。本文通过构建物理模型,在波浪水槽中进行试验,测试了底部透空不透水直立建筑物不规则波作用,得到了不同水深、相同波浪要素时,该型直立建筑物迎浪面和底面的水平总力最大时各测点正向波压力和负向波压力数据。对比分析了不同水深下底部透空不透水直立建筑物的水平总力及垂直力,总结了波峰和波谷作用下波浪力沿建筑物表面的分布规律,可为海岸工程结构设计提供依据。

The buildings with permeable but impermeablebottomare a new-type structure in offshore engineering.Compared tothe traditional hydraulic structures,this type of structure can flexibly adapt to the base bed without deformation and preventthe waves from entering the rear to cause damages.By constructing the physical model and testing in the wave flume,the action of irregular wave on anvertical building with permeable but impermeablebottom is measured,and the positive and negative wave pressure data at each measuring point are obtained at different water depths and same wave elements as well as at the time when the horizontal total force reaches the largest on the wave-facing surface and underside of the vertical building.In addition,the horizontal total force and the vertical force of the vertical building at different water depthsare compared and the distribution law of wave force along the surface of the verticalbuildingunder the actions of wave crest and trough is summarized.These can provide basis for the design of coastal engineering structures.