江西省七一水库洪水特点和调度分析  

Characteristics of floods and reservoir regulation of the Qiyi Reservoir in Jiangxi Province in recent years

作　　者：虞慧 顾小丽 吴英超 YU Hui;GU Xiaoli;WU Yingchao(Jiangxi Academy of Water Sciences and Engineering,Nanchang 330029;Jiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin,Nanchang 330029;Water Resources Protection Center of Qiyi Irrigation District,Yushan County,Jiangxi Province,Yushan 334700;JSTI Group Co.,Ltd.,Nanjing 210019)

机构地区：[1]江西省水利科学院,南昌330029 [2]江西省鄱阳湖流域生态水利技术创新中心,南昌330029 [3]江西省玉山县七一灌区水资源保护中心,玉山334700 [4]苏交科集团股份有限公司,南京210019

出　　处：《中国防汛抗旱》2024年第2期74-78,共5页China Flood & Drought Management

基　　金：江西省重点研发计划项目(20203BBGL73224、20203BBGL73221);江西省水利厅重大科技项目(KT201705)。

摘　　要：七一水库承担了江西省玉山县及下游上饶市的防洪任务,为地方经济社会发展提供了重要的基础保障。七一水库暴雨洪水一般发生在6月中旬至7月中旬,水库汇流时间短,近3年洪水呈峰高量大的特点。对2015—2022年的洪水调度进行分析,洪峰削减率基本在50%以上,最大错峰时间65 h,充分发挥了水库拦蓄洪水和错峰功能。在水库近3年洪峰及洪量较大的情况下,其最大控制下泄流量仍未超规定值,防洪效益显著。水库可进一步开展常遇洪水的泄量区间控制研究,提升300~700 m3/s区间精细化调度能力。通过总结近年降雨、洪水特点和水库调度实践经验,可为优化水库调度提供数据支撑,为提升水库预警预报能力和优化运行管理提供借鉴。The Qiyi Reservoir undertakes the flood protection tasks of Yushan County and downstream Shangrao City in Jiangxi Province,providing an important basic security for the economic and social development of Yushan County。The rainstorm and flood of Qiyi Reservoir generally occur from mid June to mid July,the time of convergence is short,and the characteristics of the flood is high peak and large volume in recent three years。By analyzing flood scheduling from 2015 to 2022,the peak flood has been reduced by over 50%,and the maximum peak delaying time has reached 65 h,the Qiyi Reservoir has fully utilized its peak detention and delaying function。The case of the high peak flow and total flood volume of the reservoir in the past three years,the maximum controlled discharge flow has not exceeded the specified design value,which is significant benefit to flood prevention.The reservoir may further carry out research on the discharge interval control of normal floods,improving the refined scheduling ability of the 300~700 m3/s interval。By summarizing the characteristics of rainfall and floods and the practice of reservoir scheduling in recent years,provide data support for optimizing reservoir operation,it can provide a reference for improving the early warning and forecasting capabilities and optimizing operational management for the reservoirs。

关 键 词：水库调度 洪峰流量 洪水特点 削峰率 七一水库 江西省 

分 类 号：TV697.1[水利工程—水利水电工程]