文档介绍:2008 年度本科毕业论文学号:04031205
高桩梁板式透空堤消浪特性研究
学院:交通学院海洋学院
专业:港口航道与海岸工程
姓名:张婷婷
指导老师:陈严士常
2008年6月南京·中国
高桩梁板式透空堤消浪特性研究
张婷婷
(河海大学交通学院、海洋学院,江苏南京 210098)
摘要
透空式防波堤是近年来逐渐受到关注的一种较新型的防波堤。因为其结构简单,
施工方便,造价较低,且对环境影响小。它根据波能主要集中在水体表面的特点来设
计结构型式以进行消波挡浪。但其消浪机理很复杂,且消浪效果较实体式防波堤差。
所以对透空式防波堤的研究还是有很高的理论意义和实际工程价值的。
本文基于对国内外对此种防波堤的理论研究和工程应用的回顾和总结,讨论了此
种透空堤透浪系数的影响因素,主要有相对水深 d/L、相对透空率(d-t)/L。在规则波
下,在不同入射波高、不同周期、不同水位时,针对高桩梁板式透空堤进项断面波浪
模型试验,重点研究影响透空堤透浪系数的主要因素以及规律性。利用 VB 编程处理试
验数据,从理论上推导高桩梁板是防波堤的透浪系数的计算公式,对比试验数据和计
算值。当上部越浪时,考虑波浪超高和相对堤宽对透浪系数的影响,修正了理论公式
并进行了验证。这些成果在实际工程应用和理论研究都有一定的意义和价值。
关键词:透空式防波堤透浪系数物理模型理论试验
Ⅰ
Study of wave transmission coefficient about
fender-plate breakwater on pile foundation
Zhang Tingting
(College of Traffic & Ocean Engineering, Hohai University, Nanjing, Jiangsu, 210098, China)
Abstract
Permeable breakwater is a new structure which has been noticed more and more in present year.
It is because of the simple structure, convenient construction, low engineering cost and having little
influence on circumstance. It can reduce wave height according to the theory that wave energy is
mainly concentrating the surface of water. But its mechanic of attenuating wave energy plex,
and the effect of blocking wave isn’t prior to the solid breakwater. So the study on permeable
breakwater has important theoretical value and practical value.
Based on retrospective study of the previous internal and oversea theories and engineering
applications, discussing the factors which impact wave transmission coefficient of this breakwater,
mainly about relative water depth d/L and relative gap-width (d-t)/L. Under the regular wave with
the different wave height、wave period and wave depth, the main factors which effect transmission
coefficient are studied and its regularity are discussed on a physical model of pile-stake breakwater.
The experimental dat