三峡水库汛期沙峰排沙调度研究与初步实践  

Study on sediment peak regulation of Three Gorges Reservoir in flood season and preliminary practice

作　　者：董炳江 乔伟[2] 许全喜 

机构地区：[1]长江水利委员会水文局长江水文技术研究中心,湖北武汉430010 [2]长江科学院农田水利研究所,湖北武汉430010

出　　处：《人民长江》2014年第3期7-11,共5页Yangtze River

基　　金：国家重点基础研究发展"973"计划"长江中游通江湖泊江湖关系演变过程与机制"(2012CB417001);水沙科学与水利水电工程清华大学国家重点实验室资助项目(2013-ky-1)

摘　　要：三峡工程蓄水运用以来,入库来沙大幅减少,泥沙淤积大为减轻,且绝大部分泥沙淤积在库区常年死库容内,为水库排沙调度试验提供了有利条件。在分析三峡水库洪峰、沙峰传播特性的基础上,针对三峡入库洪峰、沙峰传播的时间差异性,提出了"洪峰到来时拦洪削峰,沙峰临近时加大泄量排沙"的沙峰调度策略。依据所提出的调度模式,于2012,2013年汛期进行了沙峰排沙调度试验,获得了较好的效果,丰富了水库泥沙调度理论,为三峡水库正常运行期科学调度积累了宝贵经验。Since the operation of Three Gorges Project, the incoming sediment is reduced and sediment siltation is dramatically mitigated and most of the sediment silts in dead storage of the reservoir, which provides favorable condition for sediment discharge regulation of the reservoir. Based on the asynchronous propagation characteristics of the flood and sediment peaks entering the reservoir, the sediment peak regulation mode is proposed as conducting flood retention in the arrival of flood peak, and increases sediment discharge when the sediment peak arrives. According to the proposed regulation mode, the sediment peak regulation tri- als were carried out in the flood season of 2012 and 2013 and satisfied results were obtained. The sediment peak regulation trials have enriched the regulation~ theory of reservoir sediment and accumulated valuable experiences for scientific operation of Three Gorges Reservoir in subsequent normal operation.

关 键 词：异步传播 洪峰调度 沙峰排沙调度 水库淤积 三峡工程 

分 类 号：TV697[水利工程—水利水电工程]