蓄水方案变化对三峡水库泥沙淤积及通航条件的影响  

Influence on deposition of Three Gorges Reservoir caused by change of operation regulation

作　　者：赵瑾琼[1] 李义天[1] 邓金运[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2009年第4期422-426,共5页Engineering Journal of Wuhan University

基　　金：国家重点基础研究资助项目(编号:2003CB415200)

摘　　要：针对三峡水库入库水沙条件及实际运行方式的变化，计算分析了三峡水库蓄水方案变化对水库泥沙运动及变动回水区航运条件造成的影响．采崩一维水沙数学模型，计算了不同蓄水方案对水库泥沙淤积情况的影响及各方案间的差别，进而对方案渊髂后变动回水区重点浅滩的水深变化进行了研究．结果表明，在新的水沙条件及考虑上游建库的影响下，蓄水方案调整带来的影响主要集中在6～11a，并随水库运行时间的延长而缩小，不会对变动回水区浅滩河段通航条件产牛不利影响．For the changes of water silt conditions and the actual operation regulation, the influences on the movement of sediment and navigation condition at fluctuating back water area caused by the changes of operation regulation is researched. The influence on deposition caused by different operation regulation and the differences between different options is analyzed by using an unsteady 1D model at first. Changes in water depth of riffles at fluctuating back water area caused by new options is researched. The result demonstrates that the main influence caused by changes of operation regulation is reflected in 6-11 years; and the impact will be reduced with the operation of the reservoir. The changes won＇t tamper the navigation condition of fluctuating back water area.

关 键 词：三峡工程 蓄水方案变化 泥沙淤积 航运 

分 类 号：TV145[水利工程—水力学及河流动力学]