T型防波堤水平板波浪冲击压强试验研究  

Experimental study on impact pressure of waves on a horizontal plate of T-type breakwaters

作　　者：何军[1,2] 蒋昌波[1,2] 王珍[3] 徐波[1] 

机构地区：[1]长沙理工大学水利学院,长沙410114 [2]湖南省水沙科学与水灾害防治重点实验室,长沙410114 [3]广东省水利水电科学研究院,广州510610

出　　处：《水道港口》2009年第5期305-310,共6页Journal of Waterway and Harbor

基　　金：国家自然科学基金资助项目(50479015)

摘　　要：通过规则波与T型防波堤相互作用的试验研究,揭示了T型防波堤底部所受冲击压强产生的原因。分析波浪冲击压强历时曲线、相对板宽对冲击压强沿水平板底部分布的影响,得到T型防波堤水平板冲击压强的特性以及2大影响因素:相对超高和波陡。应用因次分析的方法,推导出T型防波堤底板最大相对冲击压强计算的经验公式。结果表明,该公式计算结果与试验值吻合较好,有一定的适用性。Through experimental study on the regular wave interaction with the T-type breakwater, the causes of the impact pressure effecting at the bottom of T-type breakwater were revealed. By analyzing the wave impact pressure duration curve and the influence of the relative width on the impact pressure distribution along horizontal plate at the bottom of T-type breakwater, the impact pressure characteristics along the horizontal plate of T-type breakwater and two main influencing factors including relative wave height and wave steepness were observed. Adopting the dimensional analysis method, the empirical formula of maximum relative impact press of T-type breakwater was deduced. The results show that the calculated results are in good agreement with the experimental value, and the formula has specific applicability.

关 键 词：T型防波堤 冲击压强 相对超高 波陡 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]