基于Fluent斜坡海堤挡浪墙受力特性数值计算研究  

Numerical calculation of wave force of slope type sea wall parapet wall based on Fluent

作　　者：杨成刚 丁洁 郝嘉凌[1] 邹恒 YANG Cheng-gang;DING Jie;HAO Jia-ling;ZHOU Heng(College of Harbor,Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China;Shanghai Waterway Engineering Design and Consulting Co.,Ltd., Shanghai 200136, China;Shanghai Municipal Engineering Design Institute Co.,LTD., Shanghai 200092, China)

机构地区：[1]河海大学港口海岸与近海工程学院,南京210098 [2]中交上海航道勘察设计研究院有限公司,上海200136 [3]上海市政设计研究院,上海200092

出　　处：《水道港口》2019年第4期380-390,共11页Journal of Waterway and Harbor

基　　金：国家自然科学基金重点项目(51339005);国家重点研发计划(2017YFC0405401)

摘　　要：海堤是沿海地区防潮减灾体系中重要建筑物,文章以通州湾腰沙围垦二期通道工程为例,采用Fluent软件流体体积法模型构建数值波浪水槽,对海堤工程挡浪墙波浪力进行数值模拟,重点分析与研究直立型和半圆弧型挡浪墙随水深、波高、波长等参数变化时,挡浪墙迎浪面波压力分布以及波浪力大小变化规律。研究表明半圆弧挡浪墙具有反向挑浪减小墙顶越浪作用,同时墙体承受的波浪力明显大于直立型挡浪墙,在最不利水位及波要素组合下,半圆弧挡浪墙面承受的波浪力增大幅度为30%,为减少墙顶越浪量,大型岸外沙洲围堤工程采用半圆弧型挡浪墙是较好选型。The seawall is an important building in the coastal area moisture-proof and disaster mitigation system .In this paper, taking the second-stage passageway project of the Tongzhou bay Yaosha reclamation as an example , and the Fluent software fluid volume method was used to establish a numerical wave trough. And the wave force of the wave-retaining wall of the embankment project was simulated. When vertical and semicircular arc parapet wall varied with water depth, wave height and wave length, the distribution of wave pressure and the variation of wave force on the wave front of the wall were analyzed. It is concluded that the semicircular arc parapet wall has the function of reversing wave to reduce the overtopping of the wall. The wave force on semicircular arc parapet wall is obviously greater than that on vertical parapet wall, and most importantly, the wave force on semicircular arc parapet wall is larger than that on vertical parapet wall. In the case of unfavorable water level and wave elements combination, the wave force on the surface of semicircular arc parapet wall increases by 30%. In order to reduce the overtopping of the wall, the semi-circular wave retaining wall is a better choice for large offshore sand bank embankment projects.

关 键 词：挡浪墙 波压力分布 波浪力 数值模拟 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]