基于Flow3D的桩基双侧挡板式透空堤受力特性

Mechanical characteristics of double-side baffle permeable breakwater of pile foundation on Flow3D

基于Flow3D软件建立双侧挡板透空式防波堤波浪数模水槽,分析结构断面所受波浪力及波动压强分布特点,经比对与物理模拟所得结果基本一致。进而深入研究相对板宽、相对超高、相对入水深度和波陡对透空式防波堤底板冲击力影响规律,结合因次分析法和多元线性回归法,推导出2.0<d/H<3.5,H/L<0.1波浪条件下,桩基双侧挡板透空式防波堤波浪上托力冲击压强计算公式,为双侧挡板透空式防波堤结构设计提供参考。

Based on Flow3D software,a wave digital model flume for the double-side baffle permeable breakwater was established to analyze the wave force and fluctuation pressure distribution characteristics of structural sections.The results obtained by comparison and physical simulation were basically consistent.Furthermore,the influence of relative plate width,relative high,relative water depth and the wave steepness on the impact force of the bottom plate of the permeable breakwater is studied.Combining with the dimensional analysis method and multiple linear regression method,the formulas for calculation the impace pressure of supporting force on wave of double-side baffle permeable breakwater of pile foundation under wave conditons of 2.0<d/H<3.5and H/L<0.1are deduced,which can provide references for the structure design of double-side baffle permeable breakwater.