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山海关旅游海滩生态修复工程水动力变化特性

本站小编 Free考研考试/2022-02-13
DOI: 10.11908/j.issn.0253-374x.2018.12.005

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作者单位: 同济大学,同济大学,珠江水利科学研究院,河北省地矿局第八地质大队


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中图分类号: P731.2


基金项目: 国家自然科学基金(41776098)和中央分成海域使用金项目(20160898)




Effects of Ecological Restoration Project on Hydrodynamics at Shanhaiguan Tourism Beach
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摘要:为改善海滩环境，针对山海关白鹭岛至唐子寨岸段展开了旅游海滩生态修复工程.基于Delft3D软件采用三重嵌套的方法建立了渤海秦皇岛海域山海关海域的波流耦合数学模型，并用实测资料进行模型率定和验证.基于验证后的数学模型对工程海域水动力变化特征进行分析，结果表明：潮流场基本不受工程影响，海域的水体交换能力基本不变；潜堤掩护区常浪下的波高减幅约为10%，强浪下的波高减幅约为20%.总体上，山海关旅游海滩生态修复工程的建设既保护了工程海域水动力环境，又削弱了波浪对海滩的侵蚀，有利于维持当地旅游海滩的生态环境与稳定.



Abstract:To improve the coastal environment, an ecological restoration project for tourism beach was developed between Bailu Island and Tangzizhai in Shanhaiguan. A threelayer gridnested model, covering the waters of Bohai Sea, Qinhuangdao, and Shanhaiguan, is established based on Delft3D and validated by field measurement. Then, the model is used to investigate the influence of the engineering project on the hydrodynamic characteristics. The results indicate that since the tidal current field remains basically unchanged, the water exchange capacity is kept and there is no negative effects on the ecology. Offshore submerged breakwaters dissipate wave energy with a degree of reducing 10% normal wave and 20% storm wave in height. In a word, the ecological restoration project of Shanhaiguan tourism beach not only maintains the hydrodynamic environment, but also weakens the beach erosion, which is conducive to maintaining the ecological environment and stability of local tourist beaches.





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