台阶式海堤结构参数对堤前波浪特性的影响研究

发布时间：2018-06-14 16:34

本文选题：海堤坡度 + 台阶高度　；参考：《天津大学学报(自然科学与工程技术版)》2016年04期

【摘要】：采用数值分析与物理模型试验相结合的方法,探讨了台阶式海堤与波浪相互作用的基本规律以及海堤的坡度和台阶高度对堤前波浪特性的影响.研究结果表明:当海堤台阶高度一定时,海堤的坡度越缓,台阶的相对宽度越大时,因堤前波浪壅高增大会导致波浪的反射系数越大,此时波浪在海堤台阶溯上流下过程中消耗的波浪能就会越多,波浪爬高会越小;当海堤坡度一定时,海堤台阶高度越大,台阶的相对高度越大时,因堤前增多的反射波与入射波叠加剧烈而会导致波浪的反射系数越大,此时因为海堤台阶上残余的波浪减少而导致转化成的波浪势能越少,所以波浪爬高也会越小.
[Abstract]:By using the method of numerical analysis and physical model test, the basic law of the interaction between the stepped seawall and the wave is discussed, and the influence of the slope of the seawall and the height of the step on the wave characteristics in front of the seawall is discussed. The results show that when the height of the step is constant, the slope of the sea embankment is slower and the relative width of the step is larger. The higher the height of the wave in front of the seawall is, the larger the reflection coefficient of the wave will be. In this case, the more wave energy is consumed and the higher the wave climb is, the greater the height of the step is, and the higher the relative height of the step is when the slope of the seawall is constant. The larger the reflection coefficient of the wave is due to the strong superposition of the reflected wave and the incident wave in front of the breakwater, the less the wave potential energy can be converted due to the decrease of the residual wave on the step of the seawall, so the higher the wave climb is, the smaller the wave climbing will be.
【作者单位】：广西大学土木建筑工程学院;武汉大学水资源与水电工程科学国家重点实验室;
【基金】：国家自然科学基金资助项目(51109167)
【分类号】：U656.314

【相似文献】