倾斜挡浪板桩基透空堤水动力特性  

Hydrodynamic characteristics of permeable breakwater with inclined baffle on pile foundation

作　　者：桂劲松 夏曦 GUI Jinsong;XIA Xi(College of Ocean and Civil Engineering,Dalian Ocean University,Dalian 116023,China)

机构地区：[1]大连海洋大学海洋与土木工程学院,辽宁大连116023

出　　处：《水利水电科技进展》2021年第6期32-38,共7页Advances in Science and Technology of Water Resources

基　　金：辽宁省重点研发计划(2018228003)。

摘　　要：通过物理模型试验和数值模拟试验,对前倾斜、后垂直的双挡浪板桩基透空堤的透射系数、反射系数、波压力,以及波浪爬高等水动力特性进行了系统的数值模拟研究。研究结果表明,相较于垂直挡浪板,采用倾斜的前挡浪板可明显减小结构的透射系数和反射系数,而波压力和波浪爬高变化不大,体现了更好的挡浪效果。随着挡浪板倾斜角度加大,透射系数、反射系数均呈减小趋势,当挡浪板倾斜角度增大至40°后,透射系数变化基本趋于平稳。总体来说,倾斜挡浪板结构优于垂直挡浪板结构,综合考虑各个因素,建议工程中前挡浪板倾斜角度以不大于40°为宜。Based on the comparison between physical model test and numerical simulation test,the hydrodynamic characteristics such as the transmission coefficient,reflection coefficient,wave pressure and wave climb of the permeable breakwater with forward inclined and backward vertical double baffle pile foundation were systematically studied by numerical simulation.The results show that,compared with the vertical wave baffle,the transmission coefficient and reflection coefficient of the structure can be significantly reduced by using the inclined front baffle,while the wave pressure and wave climb have little change,indicating the effect of the wave baffle.If the angle of the wave baffle reaches to 40°,the change of transmission coefficient tends to be stable.Considering all factors,the inclined baffle structure is better than the vertical baffle structure in general,and the angle of the front baffle can be designed less than 40°in engineering application.

关 键 词：挡浪板 防波堤 水动力特性 物理模型试验 数值模拟试验 

分 类 号：TV92[水利工程—水利水电工程]