涌浪条件下斜坡式防波堤堤脚块石稳定性  

Stability of the toe rocks of the rubble-mound breakwater under swell action

作　　者：钟杰 汤子扬[2] 沈雨生[3] ZHONG Jie;TANG Zi-yang;SHEN Yu-sheng(China Harbor Engineering Co.,Ltd.,Beijing 100027,China;CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510230,China;River and Harbor Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210024,China)

机构地区：[1]中国港湾工程有限责任公司,北京100027 [2]中交第四航务工程勘察设计院有限公司,广东广州510230 [3]南京水利科学研究院河流海岸研究所,江苏南京210024

出　　处：《水运工程》2020年第8期64-71,共8页Port & Waterway Engineering

摘　　要：海外港口工程大部分位于以涌浪为主的海域,防波堤在涌浪作用下的稳定性尚未得到全面认识。对于斜坡堤,除了护面对其稳定性至关重要外,堤脚对其稳定性也很重要。以某一具体港口防波堤工程为例,通过波浪断面和局部整体物理模型试验,对涌浪作用下斜坡堤堤脚块石的稳定性进行了研究。根据试验结果,对比正向和斜向波浪作用下斜坡堤堤脚块石的稳定性结果,重点分析了斜向波浪作用下斜坡堤堤头圆弧段堤脚块石发生破坏的原因及其随入射波浪周期和水位的变化关系,并对原方案堤脚进行了优化。The majority of the overseas port construction projects are located at areas with swell.The stability of the breakwaters under swell action is not fully known and researched. For the rubble-mound breakwater, the armour layer is very important,and also the toe of the rubble mound breakwater is important. Taking a breakwater project of a certain port as an example,the 2D and 3D physical model tests are performed to study the stability of the toe rocks of the rubble-mound breakwater under swell action. Based on the test results,the stability of the toe rocks of the rubble-mound breakwater under perpendicular and oblique wave action is compared.The damage of the toe rocks in the roundhead under oblique wave action is analyzed specially,and the damage level with the incident wave periods and water levels is also analyzed,thus the original plan of the toe rocks is optimized.

关 键 词：涌浪 斜坡堤 堤脚块石 断面试验 整体模型试验 

分 类 号：U656[交通运输工程—港口、海岸及近海工程]