三峡水库动库容特征及其在防洪调度上的应用:1.库水位调度控制的灵敏性  

Dynamic storage of Three Gorges reservoir and its application to flood regulations: 1.Sensitivity in regulation

作　　者：周建军[1] 程根伟[2] 袁杰 王玉华 范继辉[2] 吴敦银[4] 金勇[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室清华大学水利水电工程系,北京100084 [2]中国科学院成都山地灾害与环境研究所,成都610041 [3]中国长江三峡工程梯级调度通信中心,湖北宜昌443133 [4]江西师范大学国土开发整治研究所,南昌330027

出　　处：《水力发电学报》2013年第1期163-167,共5页Journal of Hydroelectric Engineering

基　　金：水利部公益性行业专项-三峡溪洛渡向家坝水库联合防洪调度研究(200901002);水沙科学与水利水电工程国家重点实验室自主研究课题(2011-KY-2);长江电力科研项目-长江上游变化条件下的水文预报方案研究(2410020005)

摘　　要：根据水库水动力特性分析和数值模拟研究,三峡水库表现出河道型水库所具有的动库容特性,水库水面线不呈水平,坝前水位变化与库容变化不同步,按照静库容曲线计算出的水库蓄泄水量偏差可达50%以上。研究还发现,相对于水库巨大的库容变化的"惯性",坝前水位随水库下泄流量的变化比较快,通过水库的蓄放水调度可以很容易地控制坝前水位的变化,三峡水库汛期调度具有较大的灵敏性。这个特征对于三峡水库的防洪和兴利调度具有重要的价值。In the present study of hydraulic features and simulation analysis of the Three Gorges reservoir （ TGR）, we find that the reservoir will form a backwater region of T00km long and that its storage capacity will take strongly dynamic features. Its pool surface is not horizontal as regular reservoirs, and the time variation of its storage volume does not depend on the water level of the dam front. Computation error of water discharge from the reservoir during a flood event by the static storage method could be up to 50%. The study also reveals that the water level in front of the dam varies more rapidly than the average pool level, and hence it can be easily controlled by means of regulations. This is a valuable feature for flood control and hydropower operations.

关 键 词：水库调度 动库容特性 水位变化灵敏性 三峡水库 

分 类 号：TV697.11[水利工程—水利水电工程]