多沙河流水库径流泥沙联合调节方式研究  

Study on the Joint Regulation of Runoff and Sediment of Water Supply Reservoirs in Sediment-Laden River

作　　者：陈翠霞 王海霞 温志超 梁艳洁 王天格 CHEN Cuixia;WANG Haixia;WEN Zhichao;LIANG Yanjie;WANG Tiange(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;Xinxiang Dagong Yellow River Water Supply Co.,Ltd.,Xinxiang 453300,China)

机构地区：[1]黄河勘测规划设计研究院有限公司,河南郑州450003 [2]水利部黄河流域水治理与水安全重点实验室(筹),河南郑州450003 [3]新乡市大功引黄供水有限责任公司,河南新乡453300

出　　处：《人民黄河》2025年第4期32-37,共6页Yellow River

基　　金：国家重点研发计划项目(2022YFC3080300);国家自然科学基金资助项目(U22A20237,U2243237);水利部重大科技专项(SKR-2022030)。

摘　　要：多沙河流水库供水兴利与排沙减淤之间具有独立性与融合性,如何长期保持有效库容且满足供水要求,是水库高效运用面临的待解难题之一。以泾河东庄水库(年均入库含沙量为140 kg/m^(3))为研究对象,采用实测资料分析和数学模型计算等方法,研究利于减轻下游河道泥沙淤积、长期保持东庄水库有效库容的水库排沙流量指标,提出水库径流泥沙联合调节方式。结果表明:拦沙期主汛期7—9月当入库流量大于600 m^(3)/s、含沙量大于300 kg/m^(3)时东庄水库敞泄排沙,正常运用期主汛期7—9月当入库流量大于300 m^(3)/s时东庄水库敞泄排沙;排沙期水库无法供水,与周边已建调蓄水库联合调节,可使农业灌溉保证率从30%提高到50%,工业供水保证率从57%提高到95%。There is independence and integration between water supply and sediment reduction in sediment-laden river reservoirs.How to maintain effective storage capacity and meet water supply requirements for a long time is one of the issues to be solved in the efficient operation of sediment-laden river reservoirs.In this paper,Dongzhuang Reservoir of Jinghe River was taken as the research object.Through the analysis of measured data and mathematical model calculation,the measured hydrological sediment and cross-section erosion and deposition in the lower reaches of Jinghe River and Weihe River were analyzed.The reservoir sediment discharge flow index which was beneficial to reduce the sediment deposition in the lower reaches of Weihe River and maintain the effective reservoir capacity for a long time was studied,and the joint regulation mode of reservoir runoff and sediment was put forward.The outcomes show that during the main flood season for the sediment interception period from July to September,when the inflow is greater than 600 m^(3)/s and the sediment concentration is greater than 300 kg/m^(3),the Dongzhuang Reservoir is open for sediment discharge.As the normal operation period,during the main flood season from July to September,when the inflow exceeds 300 m^(3)/s,the Dongzhuang Reservoir will open for sediment discharge.The reservoir cannot supply water during the sediment discharge period.The joint regulation of the Dongzhuang Reservoir and the surrounding four storage reservoirs can reduce the deposition of the lower reaches of the Weihe River by 11 million tons per year,increase the guarantee rate of agricultural irrigation from 30%to 50%,and increase the guarantee rate of industrial water supply from 57%to 95%.

关 键 词：多沙河流 供水 库容保持 东庄水库 泾河 渭河下游 

分 类 号：TV62[水利工程—水利水电工程] TV882.1