增强小浪底调水调沙后续动力的三门峡水库水位方案优选  

Optimal strategy for water level of Sanmenxia Reservoir to enhance follow-up power of water and sediment regulation of Xiaolangdi Reservoir

作　　者：张金良 鲁俊 高兴 赵梦龙 Zhang Jinliang;Lu Jun;Gao Xing;Zhao Menglong(Yellow River Engineering Consulting Co.Ltd.,Zhengzhou 450003,China;Key Laboratory of Water Management and Water Security for Yellow River Basin,Ministry of Water Resources(under construction),Zhengzhou 450003,China)

机构地区：[1]黄河勘测规划设计研究院有限公司,郑州450003 [2]水利部黄河流域水治理与水安全重点实验室(筹),郑州450003

出　　处：《农业工程学报》2021年第15期60-67,共8页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家重点研发计划项目(2016YFC0402503,2018YFC1508404)。

摘　　要：小浪底水库调水调沙后续动力不足,在不新建水利工程的前提下充分挖掘三门峡水库等现有工程的潜力,可为小浪底水库调水调沙提供后续动力,具有研究价值。该研究分析三门峡水库通过改建底孔形成双泥沙侵蚀基准面条件下的可能边界条件,考虑三门峡水库工程运用条件和入库洪水分期特点,分析拟定了三门峡汛期、非汛期抬高水位的方案,利用构建的三门峡水库泥沙冲淤数学模型和模糊优选评价模型进行方案计算分析与评价,提出了三门峡水库在降低侵蚀基准面的情况下最优运用水位方案,即按照前汛期运用水位308 m、后汛期运用水位312 m、非汛期最高水位321 m运行的方案,该方案与现状运用方案相比,2600 m^(3)/s以上增泄水量增加42%,电站发电量累计增加9%,湿地面积增加73%,评价的综合效益最优。研究成果对增强小浪底水库调水调沙后续动力、三门峡水库充分发挥综合效益具有重要意义。The follow-up power is still lacking for the water and sediment regulation in the Xiaolangdi Reservoir.The follow-up power of flow is required for the reservoir to discharge the sediment and the lower river channel,finally to transport the sediment into the sea,as the large flow of water is released during the water regulation stage with the reduction of large flow into the reservoir.It is necessary to fully explore the potential of the Sanmenxia Reservoir,providing the follow-up power for water and sediment regulation in the Xiaolangdi Reservoir.In this study,the possible boundary conditions were analyzed with the formation of a double sediment erosion base level via rebuilding the bottom hole of the Sanmenxia reservoir.The restricted operation water level of 305-312 m was also set in several flood seasons,according to the early flood season during July to August,and the later flood season during September to October.Several operation water levels of 318-326 m were set in the non-flood season,and nine schemes were combined with different water levels in flood season and non-flood season,considering the scouring and silting characteristics of the Sanmenxia Reservoir area.A mathematical model was constructed for the sediment erosion and siltation in the Sanmenxia Reservoir.The measured data from July 1,1973,to June 30,2019,were utilized to calibrate the parameters of the model.The calculation error of reservoir siltation was controlled within 5%.After that,the schemes were calculated using the verified mathematical model.The boundary conditions were that:in the Xiaolangdi Reservoir area in April 2020,the future inflow of 27.205 billion m³and the incoming sediment of 800 million tons of reservoir,from the accumulated erosion and siltation in the reservoir area,the accumulated increase in the elevation value of Tongguan(erosion base level of the lower Weihe River),the accumulated power generation of the power station,the average annual discharge over 2600 m^(3)/s in the reservoir,the largest wetland area in the res

关 键 词：水库管理 数学模型 水沙调控 三门峡水库 小浪底水库 双泥沙侵蚀基准面 模糊优选评价模型 

分 类 号：TV213.9[水利工程—水文学及水资源] TV882.1