| 砾石海滩剖面设计及其稳定性模型试验研究 |
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| 引用本文： | 孙家文,董祥科,于永海,王平,方海超,张子鹏.砾石海滩剖面设计及其稳定性模型试验研究[J].海洋通报,2019,38(4):422-428. |
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| 作者姓名： | 孙家文 董祥科 于永海 王平 方海超 张子鹏 |
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| 作者单位： | 国家海洋环境监测中心,辽宁 大连 116023;大连理工大学海岸和近海工程国家重点实验室,辽宁 大连 116024;国家海洋环境监测中心,辽宁 大连,116023 |
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| 基金项目： | 国家海洋公益性行业科研专项 （201405025）；国家自然科学基金 （51809053；51579034） |
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| 摘 要： | 海滩剖面设计参数确定和稳定性评价是设计阶段确保海滩养护工程质量的重要指标。针对大连凌水湾砾石海滩养护工程,综合采用Dean平衡剖面原则和剖面类比法进行剖面设计,确定了填砂中值粒径、施工坡度、滩肩前沿高程和滩肩宽度等设计参数;结合物理模型试验进行了剖面形态稳定性分析,研究了海滩在不同波浪和水位作用下的剖面形态演化过程,试验结果表明不同工况条件下,平均低水位以上的滩面均为净淤积,水下部分侵蚀明显,滩面上部泥沙不断堆积,砾石海滩最终形成稳定剖面。研究结果可为类似砾石海滩养护工程设计提供参考。
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| 关 键 词： | 砾石海滩 剖面设计 模型试验 稳定性 |
| 收稿时间： | 2018/11/18 0:00:00 |
| 修稿时间： | 2019/1/17 0:00:00 |
Study on profile design and stability physical model experimental of gravel beach |
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| SUN Jia-wen,DONG Xiang-ke,YU Yong-hai,WANG Ping,FANG Hai-chao and ZHANG Zi-peng.Study on profile design and stability physical model experimental of gravel beach[J].Marine Science Bulletin,2019,38(4):422-428. |
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| Authors: | SUN Jia-wen DONG Xiang-ke YU Yong-hai WANG Ping FANG Hai-chao and ZHANG Zi-peng |
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| Affiliation: | National Marine Environmental Monitoring Center, Dalian 116023, China; State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China,National Marine Environmental Monitoring Center, Dalian 116023, China,National Marine Environmental Monitoring Center, Dalian 116023, China,National Marine Environmental Monitoring Center, Dalian 116023, China,National Marine Environmental Monitoring Center, Dalian 116023, China and National Marine Environmental Monitoring Center, Dalian 116023, China |
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| Abstract: | The determination of beach profile design parameters and stability evaluation are important indexes to ensure the quality of beach maintenance project in the design stage. Aiming at the maintenance project of gravel beach in Dalian Lingshui Bay, the design parameters such as median grain size, beach slope, front elevation and width of beach shoulder were determined by using Dean Balance Profile Principle and section analogy method. The stability analysis of beach profile was carried out in combination with physical model experiment. The morphological evolution process of the beach under different wave and water level was studied. Results show that under different working conditions, the beach surface above the average low water level is net siltation, the underwater partial erosion is obvious, the sediment in the upper beach surface accumulates continuously, and the gravel beach finally forms a stable section. The results can provide reference for the maintenance engineering design of gravel beach. |
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| Keywords: | gravel beach beach profile design physical experiments stability |
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