摘要
针对挡潮闸闸上河床演变的响应研究较少的问题,以浙江省强潮河口曹娥江口门建闸为例,基于建闸前水沙输移特点及河床演变分析,采用动床数学模型研究了建闸对闸上河床演变的影响。结果表明,建闸后闸上河道蓄水及口门侵蚀基面抬高,闸前至新三江闸河段内呈壅水淤积,新三江闸以上河段发生单向冲刷。
There are little achievements for studying response of river bed evolution on tide lock. Taking the tide lock construction at Cao＇e River in Zhejiang strong tidal river for an example, mobile bed mathematical model is applied to analyze the influence of tide lock construction on river bed evolution on the basis of characteristics of water-silt transportation and river bed evolution analysis. The results show that the river channel storage and erosion cardinal plane are lifted after tide lock construction; backwater deposition between Xinsanjiang gate river segment and tide lock is arisen; and the upper reach of Xinsanjiang gate river segment occurs unidirection erosion.
出处
《水电能源科学》
北大核心
2011年第5期99-102,共4页
Water Resources and Power
基金
水利部公益性行业科研专项经费资助项目(201101056)
关键词
潮汐河口
动床数学模型
水流挟沙能力
挡潮闸
河床响应
tidal river
mobile bed mathematical model
sediment-carrying capacity
tide lock
response of river bed
