桩基挡板式透空堤透浪系数计算及试验研究  

Calculation of wave transmission coefficient and experimental study of a permeable breakwater on pile foundation

作　　者：陈德春[1] 茆福文[1] 沈丽宁[1] 殷福安 

机构地区：[1]河海大学港口海岸与近海工程学院,江苏南京210098 [2]长江勘测规划设计研究院,湖北武汉430010

出　　处：《水利水运工程学报》2012年第5期83-87,共5页Hydro-Science and Engineering

摘　　要：在威格尔对直板透浪系数研究基础上,采用微幅波理论并结合不同透空堤结构尺寸(挡浪板宽度与挡板间距之和D,桩基的宽度b及挡浪板间距△D组合)推导透空堤透浪系数计算公式.并基于广东新港荔枝湾防波堤模型试验,研究了挡浪板的相对入水深度、挡浪板间距、不同波浪重现期对透浪系数的影响,验证了理论推导透浪系数计算公式的合理性,计算了波浪条件d/L≤0.245和t/d=0.35～0.78范围内的透空堤透浪系数,为确定合理的透空式防波堤结构提供设计依据.Based on Wiegei′s research of wave transmission coefficient for the upright type of a permeable breakwater,the theory of micro-amplitude wave and the detailed dimension of permeable breakwater are used（including the total width of wave panel and its separation distance,the width of pile and the separation distance of wave panel）to derive the calculation formula of wave transmission coefficient of the permeable breakwater.By the model test of a breakwater in Xingang Lizhiwan in Guangdong Province,we studied the influence of the relative depth in water,the separation distance of wave panel and recurrence period on wave transmission coefficient.Through comparison of the experimental values and the transmission coefficients calculated by the code and the theoretical formula,the theoretical formula of wave transmission coefficient is proved to be reasonable.The formula can be used when d/L is no more than 0.245 and t/d is between 0.35 to 0.78,and it also can provide a base for the design of the same kind of breakwater.

关 键 词：挡浪板 透空式防波堤 透浪系数 

分 类 号：U656.24[交通运输工程—港口、海岸及近海工程]