摘要
结合某码头二期工程建设,对竖直双挡板桩基码头结构开展波浪整体与断面物理模型试验,对工程码头、防波堤设计波要素及港内波高分布进行了测定。分析了竖直双挡板桩基码头不同挡板结构(挡板底高程、挡板封闭情况)时的港内波高分布特征,分析了不同工况下港内泊稳条件,并给出了最优化方案;研究了波向对绕射的影响、有效波高比与相对入水深度对透射系数的影响,分析了绕射波、透射波、反射对港内波况的影响。研究表明,《海港水文规范》给出的岛式防波堤堤后不规则波绕射系数整体上小于竖直双挡板桩基码头的绕射波试验值,港域内波高最小的区域位于距离码头中心一倍船宽附近,最后提出了一种港内波高的简化计算方法。
A three-dimensional physical model test and a sectional model test were set up combined with thesecond phase construction of a ferry terminal, which was designed to adopt double vertical barriers structure. Thedesign wave parameters for the wharf structure and the breakwaters were obtained in a wave basin. Differentschemes of the barrier of the wharf and the scheme of extending the breakwater were applied. Based on the resultsof the test, the wave heights distribution in different schemes was studied and analyzed to determine the optimalscheme. The influence of wave direction on wave diffraction was studied, along with the influence of the significantwave height ratio and the relative water depth on the wave transmission coefficient. It was also analyzed the influ-ence of wave reflection on the tranquility of the harbor. It is shown that wave heights are smallest near the middleand one boat beam north of the wharf. A simplified method to calculate the wave height distribution is presented atlast, which provides a scientific basic for the design and construction of the harbor.
出处
《水道港口》
2015年第3期197-203,共7页
Journal of Waterway and Harbor
关键词
挡板式
波高分布
波浪透射
波浪绕射
double vertical barriers
wave height distribution
wave transmission
wave diffraction
