斜坡堤在涌浪作用下的越浪量试验研究  

Experimental Study on Wave Overtopping Sloping Breakwater Caused by Surge

作　　者：陈汉宝[1] 陈松贵[1] 周加杰 周然[1] 

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456 [2]中交四航局第二工程有限公司,广东广州510300

出　　处：《港工技术》2015年第5期22-25,共4页Port Engineering Technology

摘　　要：影响波浪作用下防波堤的越浪量大小的因素很多,对于周期影响的分析成果差异很大。首先分析了三个代表的计算公式的越浪量与周期的对应关系,再针对8种典型的单坡无胸墙斜坡堤,通过二维水槽物理模型试验进行不同周期波浪条件下越浪量的测定,进行试验值与计算值的对比。针对计算值与实测值的差别,对波浪爬高进行了计算,表明越浪量小数值离散大的组次是溅浪的情况。在长周期波浪作用下,水体在斜坡上雍高,表明浅水效应明显,因此引入与深水波陡有关的因子,对周期较长情况下的越浪量计算公式进行了修正,符合情况良好。There were many factors that influenced wave overtopping breakwater under the action of surge. And the analysis results on wave period were quite different. At first, analysis was made for the relation between wave overtopping flux and wave period in three representative formulas. Then 2D flume physical model test was used to measure wave overtopping eight typical single-slope breakwaters without breast wall in different wave periods. Wave run-up was calculated to analyze the difference of overtopping values between the test and calculation, which showed that the cases which had small overtopping and large discrete value were wave-splashing. Long-period wave resulted in high water level in front of the sloping breakwater and obvious shallow water effect. Thus the factors related to deep-water wave steepness were adopted to improve the existed overtopping formula corresponding to long period. The results by using new formula accorded with the measured values well.

关 键 词：周期 涌浪 防波堤 越浪 

分 类 号：U651.3[交通运输工程—港口、海岸及近海工程]