人民黄河2024，Vol.46Issue(10)：33-37,5.DOI:10.3969/j.issn.1000-1379.2024.10.006
西霞院水库排沙控制水位优化研究
Optimization of Controlled Water Level for Sediment Discharge of Xixiayuan Reservoir
摘要
Abstract
In order to avoid the erosion and damage of retaining walls and hollowed out bedding during the period of sediment discharge at low water level of Xixiayuan Reservoir,and to control the sedimentation rate of the reservoir,it is necessary to scientifically propose reasonable controlled water levels for sediment discharge.Based on measured data,the sediment discharge laws of Xixiayuan Reservoir under different controlled water level were analyzed.The impact of three schemes of controlled water levels for sediment discharge of 128.5 m,130.0 m,and 131.0 m on reservoir erosion and sedimentation was calculated by using a one-dimensional water and sediment dynamics model.The results show that a)when the controlled water level of the reservoir is below 131.0 m,the sediment discharge ratio is basically above 60%;and when the controlled water level of the reservoir is above 131.0 m,the sediment discharge ratio is below 50%.b)Compared with the 130.0 m and 128.5 m schemes,the 131.0 m scheme only increases the sedimentation volume in the reservoir area by 2%～13%.c)At the end of the calculation period of 10 years,sedimentation forms of the 131.0 m,130.0 m and 128.5 m schemes are all below the designed equilibrium form of sedimentation,which are not harmful to the project.From the perspective of engineering safety,it is recommended to control the water level for sediment discharge in Xixiayuan Reservoir at 131.0 m.关键词
排沙控制水位/工程安全/累计淤积量/淤积形态/西霞院水库Key words
controlled water level for sediment discharge/engineering safety/cumulative sedimentation volume/sedimentation form/Xixiayuan Reservoir分类
建筑与水利引用本文复制引用
朱呈浩,谢慰,陈翠霞,陈松伟..西霞院水库排沙控制水位优化研究[J].人民黄河,2024,46(10):33-37,5.基金项目
国家自然科学基金资助项目(U22A20237,U2243237) （U22A20237,U2243237）
水利部重大科技项目(SKS-2022088) （SKS-2022088）
