斜向规则波作用下斜坡堤波浪爬高试验研究

Experimental study on wave run-up of sloping seawall under oblique regular waves

由于海堤结构的多样性,波浪与建筑物相互作用过程十分复杂,波浪爬高是海堤设计中非常重要的因素。归纳总结国内外波浪爬高的研究进展和相关计算公式,通过斜向规则波作用下斜坡堤的物理模型试验,研究了在不同波向角的规则波作用下斜坡堤的波浪爬高,重点分析和讨论波向角β与斜坡堤波浪爬高的关系,得出对于某一测点,在相同的波浪条件下,斜坡堤波浪爬高随着波向角β的增大而减小,对于某一波向角而言,当波高H不变时,波陡H/L越小,则波浪爬高R越大;当周期T保持不变时,波陡H/L越大,则波浪爬高R越大,并提出修正计算斜坡堤规则波作用下波浪爬高公式。

Because of the diversity of sea dikes structures and the complexity of the interactions between waves and marine structures, wave run-up is an important factor for the design of the sea dikes. We summarized the research process and relevant calculation formulas of wave run-up at home and abroad. Based on the physical model experiment of sloping seawall under oblique regular waves,we studied wave run-up of sloping seawall under regular waves, analyzed and discussed the relation between the wave direction angle and wave run-up of sloping seawall. For a fixed measurement point, the wave run-up ofslope seawall decreases with the increase of wave direction angle 茁under the same wave conditions. For a fixed wave direction angle, the wave run-up R generally increases as the wave steepness H/L decreases when its wave heights H constant; the wave run-up R generally increases as the wave steepness H/L increases when its wave period T constant. The modified calculation formula for wave run-up of sloping seawall under regular waves was presented.