永定河滞洪水库入渗量计算分析  

Calculation and analysis of leakagee ooff YYoonnggddiingRiver Flood-Retention reservoir

作　　者：申阳 贾东民 邱颖 陈希红 张淼 王东水 SHEN Yangg;JIA Dongmin;QIU Ying;CHEN Xihong;ZHANG Miao;WANG Dongshui(Beijing Yongding River Management Department,Beijing,100165,China)

机构地区：[1]北京市永定河管理处,北京100165

出　　处：《北京水务》2023年第4期27-30,共4页Beijing Water

摘　　要：为了更好地了解永定河流域渗漏规律,做好永定河滞洪水库生态补水工作,以2021年永定河滞洪水库生态补水为例,分别采用水量平衡方法和达西定律进行计算,并将计算结果与2020年入渗分析结果和历史地质资料进行对比,综合分析永定河滞洪水库入渗规律,计算出保持水库水位不变的生态补水量临界值。永定河滞洪水库日均渗漏量为38万m^(3),且短期内以垂直渗漏为主,维持2座水库水位基本稳定,最大补水流量不能超过4.3m^(3)/s,研究成果为永定河未来生态补水工作提供参考。The ecological water supplement work of Yongding River flood detention reservoir is implemented according to the seepage law of Yongding River basin.Based on the ecological water replenishment work in 2021,calculation and analysis of leakage of Yongding River Flood-Retention reservoir.The water balance method and Darcy's law were used for calculation and analysis,respectively.Calculation results were compared with the 2020 infiltration analysis results and historical geological data to comprehensively analyze the infiltration law of Yongding River Flood-Retention reservoir,and calculate the critical value of ecological water supplement to keep the reservoir water level unchanged.The results show that the average daily leakage of the detention reservoir is 380,000 m^(3),and vertical leakage is the main seepage in the short term.The water level of the two reservoirs is basically stable,and the maximum water replenishing flow cannot exceed 4.3 m^(3)/s.This conclusion provides basic data for the future ecological water replenishment work of Yongding River,and provides data support for maintaining the reservoir water storage and flood control work requirements.

关 键 词：永定河 滞洪水库 渗漏量计算 

分 类 号：TV512[水利工程—水利水电工程]