高边坡海堤断面方案设计研究  

Research on Design of High Slope Seawall Section Scheme

作　　者：周雅 ZHOU Ya(Shanghai Municipal Engineering Design Institute(Group)Co.,LTD.,Shanghai 200092,China)

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2025年第2期145-149,共5页Urban Roads Bridges & Flood Control

摘　　要：以青岛某海岸带综合整治工程为例,对高边坡海堤断面方案进行研究。从外坡防护和整体稳定两方面进行现状分析和方案比选,通过物理模型试验和有限元计算提出:堤前海底坡度陡于1/50时,波高随水深减小迅速增大,波浪爬高实际值大于规范计算值,应结合物理模型试验进一步确定防护高度,波浪爬高区域设护面块体防护,水花溅落区域设三维水土保持毯抗冲;堤身宽度受限条件下,放坡+加筋土换填为边坡处理可行方案,土工格栅加筋后,海堤整体稳定安全系数提高5.1%。从结构安全、经济性和生态性角度论证了方案的合理性。Taking the comprehensive improvement project of a coastal zone in Qingdao as an example,the section scheme of a high slope seawall is studied.From the perspectives of external slope protection and overall stability,the current situation analysis and scheme comparison are conducted.Through the physical model experiments and finite element calculations,it is proposed that when the slope of the seabed in front of the embankment is steeper than 1/50,the wave height increases rapidly with the decrease of water depth,and the actual value of wave runup is greater than the calculated value in the specifications.The protection height should be further determined in combination with the physical model experiments.The wave runup area is protected by a protective block,and the splash area is equipped with three-dimensional soil and water conservation blanket for splashing.Under the condition of limited width of the embankment,the sloping and reinforced soil replacement is a feasible solution for slope treatment.After the geogrid reinforcement,the overall stability safety factor of the seawall is increased by 5.1%.The rationality of the scheme is demonstrated from the perspectives of structural safety,economy,and ecology.

关 键 词：海堤 物理模型试验 有限元计算 波浪爬高 整体稳定 

分 类 号：TV871[水利工程—水利水电工程]