水道港口2025，Vol.46Issue(3)：357-366,10.
环抱式与半环抱式港池淤积数值模拟对比研究
Comparative study on numerical simulation of sedimentation in enclosed and semi enclosed harbor basins
摘要
Abstract
The water intake of coastal power stations is often affected by sediment deposition,leading to reduced water intake capacity and degraded water quality.Based on a case study of a coastal power station in the Bay of Bengal,this paper simulated sediment deposition in the harbor basin under both fully encircled and semi-encircled harbor layouts.It analyzed scouring and silting patterns in the harbor basin,navigation channel,and water intake open channel under strong tidal conditions after breakwater construction,and spatial distribution of scouring and silting one year post-construction.The results indicate that as time progresses,siltation in the semi-encircled harbor basin primarily occurs at the confluence of the navigation channel and the turning basin,with nearly 50%of sedimentation accumulating outside the dredged area.The maximum annual siltation intensity reaches 4 m,with total harbor basin sedimentation approaching 2 million m3/a.In contrast,siltation in the fully encircled harbor basin predominantly occurs within the dredged area,showing relatively uniform distribution from the water intake open channel to the harbor entrance.Its maximum annual siltation intensity is 3.5 m,with total sedimentation of 1.25 million m3/a.Both annual siltation intensity and total sedimentation volume demonstrate the superiority of the fully encircled configuration over the semi-encircled design.These findings provide valuable references for engineering maintenance and future research.关键词
环抱式港池/半环抱式港池/泥沙落淤/孟加拉湾/潮流泥沙数学模型Key words
encircling basin/semi-encircling basin/sediment deposition/Bay of Bengal/tidal flow and sediment mathematic model分类
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田沛星,王广生,陈汉宝,鱼童,管大为..环抱式与半环抱式港池淤积数值模拟对比研究[J].水道港口,2025,46(3):357-366,10.基金项目
国家重点研发计划项目(2023YFE0126300) （2023YFE0126300）
