2018年三峡水库175米蓄水实践与启示  

Three Gorges Reservoir:reaching 175 meter storage goal in 2018

作　　者：王祥 唐勇[3] 李鹏[1,2] 任新楷 WANG Xiang;TANG Yong;LI Peng;REN Xinkai(China Three Gorges Corporation,Yichang 443000;China Yangtze Power Co.,Ltd,Yichang 443000;National Power Dispatch and Communication Center,Beijing 100032)

机构地区：[1]中国长江三峡集团有限公司,宜昌443000 [2]中国长江电力股份有限公司,宜昌443000 [3]国家电力调度通信中心,北京100032

出　　处：《中国防汛抗旱》2020年第6期56-61,共6页China Flood & Drought Management

基　　金：国家重点基础研究发展计划(“973”计划)资助项目(2013CB036406);国家重点研发计划(2016YFC0402210)。

摘　　要：受长江上游流域水库调蓄和中下游地区用水需求提高影响,三峡水库蓄水期间来水和出库均较初设阶段发生显著变化,水库依据初步设计方式蓄水面临较大困难,特别是蓄水期来水偏枯的年份。为保证三峡水库顺利完成175.00 m蓄水任务,确保三峡水库综合效益充分发挥,通过大量研究对三峡水库蓄水方式进行了优化调整。2010年采取新的蓄水方案后,三峡水库连续第9年完成175.00 m蓄水任务,表明优化后的蓄水方式能提高水库蓄满率。以2018年三峡水库175.00 m蓄水实践进行分析,结果表明,9月下旬至10月上旬来水偏多可能带来库尾淹没风险问题,为减少蓄水期三峡水库来水偏多带来的库尾淹没风险,提出了相关应对措施供后期调度参考。Influenced by the reservoir regulation and storage in the upper reaches of the Yangtze River and the in⁃crease of water demand in the middle and lower reaches of the Yangtze River,the inflow and outflow of the Three Gorges Reservoir have changed significantly during the impoundment period compared with the initial stage.It is difficult for the reservoir to impound water according to the preliminary design mode,especially in the years when the inflow is low.In order to ensure that the Three Gorges Reservoir successfully completes the 175 m water stor⁃age goal,and to ensure that the comprehensive benefits of the Three Gorges Reservoir are brought into full play,a large number of studies have been carried out to optimize and adjust the water storage mode.Since 2010,the Three Gorges Rservoir has reached 175 m water storage goal for the ninth consecutive year by adopting a new wa⁃ter storage scheme,which shows that the optimized water storage mode can improve the reservoir full storage rate.Based on the analysis of the 175 m impoundment practice of the Three Gorges Reservoir in 2018,it is shows that the excessive inflow from late September to early October may cause the reservoir tail inundation risk.In order to reduce the reservoir tail inundation risk caused by excessive inflow during the impoundment period,the corre⁃sponding measures are put forward for reference.

关 键 词：三峡水库 蓄水 水位 淹没风险 负荷需求 

分 类 号：TV697.1[水利工程—水利水电工程]