长周期波作用下防波堤施工期掩护效果的波浪场数值分析  

Numerical simulation of the breakwater cover effect during construction processunder long period wave

作　　者：陈进 应宗权[1,2,3] 温承永 CHEN Jin;YING Zongquan;WEN Chengyong(CCCC Fourth Harbor Engineering Institute Co.Ltd.,Guangzhou 510230,China;CCCC Key Lab of Environmental Protection&Safety in Foundation Engineering of Transportation,Guangzhou 510230,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,China)

机构地区：[1]中交四航工程研究院有限公司,广州510230 [2]中交交通基础工程环保与安全重点实验室,广州510230 [3]南方海洋科学与工程广东省实验室(珠海),珠海519082

出　　处：《水道港口》2024年第5期700-707,共8页Journal of Waterway and Harbor

基　　金：国家自然科学基金项目(52071242)。

摘　　要：研究波浪绕过防波堤进入港内的波高分布和传播方向,对于港口的合理设计、安全运营、施工期合理的作业安排有着重要意义。基于Boussinesq方程模型,以秘鲁钱凯港口施工期的主防波堤为研究对象,对防波堤掩护后的波浪传播过程进行数值模拟,得到典型中长周期海况和3种防波堤推进里程组合工况下的防波堤后波浪场分布,研究发现:当防波堤推进到K0+2100时,防波堤对于码头内侧区域产生良好的掩护效果,但是对防波堤口门处的掩护效果越弱;防波堤对波浪周期的影响较小;防波堤对于SSW浪向的掩护效果要优于SW浪向。研究成果为防波堤处于施工期的掩护效果评估提供了一种有效方法。The analysis of the wave field behind the breakwater is of great importance for the rational design of the port,safe operation and a sensible operational arrangement during the construction period.The wave propagation process under the breakwater cover was numerically simulated based on the Boussinesq equation model.The research object in this paper was the main breakwater during the construction period of the Peruvian port of Chancay.The wave field distributions behind the breakwater were determined under the combination of typical long-period sea states and two construction miles of the breakwater.It is shown that when the breakwater moves forward to K0+2100,the breakwater has a good shielding effect on the harbor area,but the shielding effect on the breakwater entrance area is weaker.The influence of the breakwater on the wave period during the construction process is small;The shielding effect is better with the SSW wave direction than with the SW wave direction.The present study provides an effective method for evaluating the coverage effect of the breakwater during the construction period and provides a basis for sensible planning and planning optimization of the port.

关 键 词：Boussinesq Wave模型 施工期 防波堤 长周期波 

分 类 号：U65[交通运输工程—港口、海岸及近海工程] TV143[交通运输工程—船舶与海洋工程]