倾斜挡浪板式桩基透空型防波堤的消浪性能研究  

Experimental Study on Wave-Dissipating Performance of Pile-Supported Breakwater With Perforated Inclined Wave Screen

作　　者：王强 刘睿 梁丙臣[3] WANG Qiang;LIU Rui;LIANG Bing-chen(Technical Testing Center of Shengli Oilfield,SINOPEC,Dongying 257000,China;Qingdao Supercomputing and Data Center,Qingdao GoSci Technology Group,Qingdao 266061,China;College of Engineering,Ocean University of China,Qingdao 266061,China)

机构地区：[1]中国石油化工股份有限公司胜利油田分公司技术检测中心,山东东营257000 [2]青岛国实科技集团有限公司青岛超级计算与大数据中心,山东青岛266061 [3]中国海洋大学工程学院,山东青岛266061

出　　处：《海岸工程》2022年第2期95-104,共10页Coastal Engineering

基　　金：国家自然科学基金项目——桩基环保型防波堤的基础理论与设计方法(51739010)。

摘　　要：本文提出了一种倾斜挡浪板式桩基透空型防波堤,通过物理模型试验对规则波作用下防波堤的消浪性能进行了研究。试验中观测了桩基透空型防波堤迎浪侧和背浪侧波面的变化过程,探讨了不同入射波浪条件下防波堤挡浪板的开孔率ε和布置形式B对其消浪性能的影响,分析了防波堤的反射系数K_(r)、透射系数K_(t)以及波能耗散系数K_(d)随着相对波高H/D和相对堤宽W/L的变化关系,并从波浪能量分布的角度分析此种防波堤的消浪机理。研究结果表明,单层挡浪板的开孔率自30%降低至10%,平均透射系数可减小约24.3%,平均耗散系数可增长约12.8%;双层挡浪板防波堤的反射系数取决于前排挡浪板的开孔率,透射系数取决于挡浪板组合中的最小开孔率。A pile-supported breakwater with perforated inclined wave screen is proposed and its wave-dissipating performance under the action of regular wave is studied through physical model experiments.The changes of the wave surface of the breakwater at both the wave-ward side and the back wave side are observed during the experiments,the influences of the open-pore rateεand combination B of the wave screen of the breakwater on the wave-dissipating performance under different incident wave conditions are discussed,the relations of the wave reflection coefficient,transmission coefficient and wave-dissipating coefficient of the breakwater to the relative wave height H/D and relative breakwater width W/L are analyzed and the wave-dissipating mechanism of this type of breakwater is analyzed from the point of view of the wave energy distribution.The results show that in the case of a single perforated inclined wave screen the average transmission coefficient can be reduced by 24.3%and the average wave-dissipating coefficient can be increased by 12.8%when the open-pore rate of the wave screen decreases from 30%down to 10%.In the case of double perforated inclined wave screens,the reflection coefficient of the breakwater depends on the open-pore rate of the front wave screen and the transmission coefficient relies on the minimum open-pore rate of the combined wave screens.

关 键 词：桩基透空式防波堤 模型试验 消浪性能 透射系数 波能耗散系数 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]