摘要
防波堤工程中堤顶越浪量的增加易导致堤后破坏,造成重大生命财产损失。针对这一问题,对防波堤后坡干砌块石护面进行系列物理模型试验,根据越浪对堤后不同砌块厚度的冲刷破坏情况,讨论堤后砌块护面稳定厚度与越浪量之间的关系。在此基础上,对平均越浪量进行分析,并对比国内外现有越浪量计算公式,结合我国常用防波堤结构形式,提出不规则波作用下的平均越浪量计算公式。最终给出不规则波作用下后坡干砌块石稳定厚度的计算公式。结果表明,公式与试验结果吻合度较好,可为我国防波堤后坡护面结构设计提供重要参考依据。
Dike failure is caused by overtopping breakwater, which results in a serious loss of lives and property. To solve this problem, a series of physical model tests were conducted on stable thickness of block revetment on the inner slope of the seawall. According to the erosion of block embankment with different thicknesses, we probe into the relationship between the armor thickness and average overtopping.Equations are given for the stable thickness of facing block on the inner slope. New equations are also presented for average overtopping discharge based on the analysis of mean wave overtopping and comparison of the domestic and foreign existing overtopping formulae. It can provide reference for the design of seawalls.
出处
《水运工程》
北大核心
2016年第6期93-98,共6页
Port & Waterway Engineering
基金
水利部公益性行业科研专项经费资助项目(20141004)
国家自然科学基金(51579156)
南京水利科学研究院院基金重大项目(Y214009)
江苏省水利科技项目(2012001-8)
江苏省水利科技项目(2014048)
关键词
平均越浪量
干砌块石
堤后护坡
稳定厚度
average overtopping discharge
block revetment
inner embankment protection
stable thickness
