| 谷雪清，金瑞佳，耿宝磊.不规则波作用下内部碎石斜坡开孔沉箱反射系数试验研究[J].海洋工程,2026,(1):143~150 |
| 不规则波作用下内部碎石斜坡开孔沉箱反射系数试验研究 |
| Experimental study on the reflection coefficient of the perforated caisson with the internal rubble mound under irregular waves |
| 投稿时间：2024-12-02 修订日期：2025-02-24 |
| DOI：10.16483/j.issn.1005-9865.2026.01.013 |
| 中文关键词: 内部碎石斜坡结构 开孔沉箱 反射系数 不规则波 |
| 英文关键词:internal rubble slope structure perforated caisson reflection coefficient irregular waves |
| 基金项目:国家自然科学基金资助项目（U2106223， U21A20123）；中央基本科研业务费资助项目（TKS20230106） |
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| 中文摘要: |
| 内部带碎石斜坡的开孔沉箱，融合了斜坡堤与开孔沉箱的消浪优势，可以通过对现有码头的改造实现较好的消浪效果。基于弗劳德相似，开展了模型比尺为1∶20的二维波浪水槽物理模型试验，研究了不同周期不规则波浪作用下的内部带碎石斜坡开孔沉箱的反射系数，详细讨论了相对消浪室宽度、相对水深、内部碎石斜坡坡度以及填充碎石孔隙率等参数对反射系数的影响，通过控制单一变量法讨论各个影响因素与反射系数的关系，同时根据单个因素讨论结果，采用最小二乘法拟合得出内部碎石斜坡开孔沉箱反射系数的计算公式，并通过规则波试验数据对其进行了对比验证，研究结论可为相关工程设计和应用提供参考。 |
| 英文摘要: |
| The integration of rubble-mound slopes within perforated caissons combines the wave-dissipating advantages of rubble-mound embankments and perforated caissons, enabling effective wave attenuation through modifications to existing docks. This study, based on Froude similarity, conducts a two-dimensional wave flume physical model test with a scale ratio of 1∶20. It investigates the reflection coefficients of perforated caissons with internal rubble slopes under irregular waves of different periods. Detailed analyses are carried out on the effects of relative chamber width, relative water depth, internal rubble slope gradient, and void ratio of the rubble fill on the reflection coefficient. Using a controlled single-variable method, the relationship between each factor and the reflection coefficient is examined. Furthermore, based on the results of individual factor analyses, a calculation formula for the reflection coefficient of perforated caissons with internal rubble slopes under irregular waves is derived using the least squares method. The proposed formula is compared and validated against data from regular wave tests. The conclusions provide useful references for engineering design and practical applications. |
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