| 摘要: |
| 为探求斜坡堤典型胸墙迎浪面所受波浪力大小的影响因素, 设计前仰式、深弧式、后仰式和直立式4 种结构型式胸墙进行相关的物理模型试验。通过在典型胸墙迎浪面间隔布置压力测点, 获取所受波浪压力, 并将其进行积分求和, 得到胸墙所受波浪力, 进而讨论相对波高、相对波长、斜坡坡度和胸墙结构型式对波浪力的影响。结果表明, 相对波高与相对波长对胸墙所受波浪力影响显著; 波浪力随着相对波高的增大而增大, 随着相对波长的增大呈现先增大、后减小、再增大的变化趋势; 波浪力随着斜坡坡度的增大而减小。斜坡堤弧形胸墙所受波浪力明显大于直立式胸墙所受波浪力; 在斜坡堤弧形胸墙中, 前仰式胸墙受力较其余两种型式胸墙受力小。研究结果将加深波浪对斜坡堤胸墙作用力的理解, 为后续工程设计提供理论指导。 |
| 关键词: 典型胸墙 波浪力 影响因素 斜坡堤 试验 |
| DOI：10.11759/hykx20150122001 |
| 分类号: |
| 基金项目:国家自然科学基金项目(51209081); 山东省高等学校科技计划项目(J14LH02); 烟台市科技发展计划项目(2014ZH075); 鲁东大学人才引进科研基金项目(LY2013025) |
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| Factors influencing wave load on typical crest walls of sloping breakwaters |
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| Abstract: |
| To determine factors influencing the wave load on typical crest walls of sloping breakwaters, we performed a physical model experiment on four types of crest walls: the leaning-front, deep-arc, leaning-back, and vertical types. We obtained the wave load from the integral of the wave pressure at different locations on the crest walls. Then, we analyzed the relation between the wave load and relative wave height, relative wave length, slope, and type of crest wall. The research results show that, the relative wave height and length significantly affect the wave load. The wave load increases with an increase in the relative wave height and presents a variation trend in which it first increases, then decreases, and finally increases with an increase in the relative wave length. However, wave loads decrease with an increase in the slope. For the same wave conditions, the wave load on an arc crest wall of sloping breakwaters is greater than that on a vertical crest wall. Moreover, among arc crest walls, the wave load on a leaning-front crest wall is less than those on deep-arc and leaning-back crest walls. These research results expand our knowledge about wave loads on the crest walls of sloping breakwaters and provide theoretical direction for subsequent engineering designs. |
| Key words: crest wall wave load influencing factor sloping breakwater experiment |
