三峡电站调峰与通航问题研究

Study on the Navigation and Power Station for Hump Modulation of Three Gorges and Gezhouba Project

根据三峡工程设计各阶段实体模型试验、一维和二维数学模型计算以及自航船模研究成果 ,阐明了汛期和非汛期电站调峰运行条件下 ,三峡和葛洲坝两枢纽区间 ,以及葛洲坝下游宜昌河段的往复流和重力长波运动特性及其对通航条件的影响 ,指出了优化通航条件的有效途径 ,认为在非汛期电站调峰和葛洲坝反调节运行条件下 ,汉渝直达的万吨级船队可以在宜昌河段、两坝间及三峡上、下游引航道安全行驶。汛期调峰容量为 8GW,入库日平均流量分别为 1 0 0 0 0、1 5 0 0 0、2 0 0 0 0 m3/s的调峰方案 。

According to the findings of physical model test and mathematic model calculations (1 D and 2 D) and remote controlled ship model test at different design stages for Three Gorges Project, this paper indicates the characters of to and fro flow and gravitational long wave motion and the effect on navigation conditions of power station for hump modulation during flood season and no flood season between two power stations (Three Gorges and Gezhouba) and Yichang reach. Moreover, the paper puts forward the valid ways of optimising navigating states. The flow conditions satisfy the demands of the vessels directly navigating from Wuhan to Chongqing by the anti regulation of Gezhouba in no flood season. When the pondages of hump modulation is 800(104kW,the different hump modulation schemes of power station have no dull effect on navigation between the two power stations and the Yichang reach as for the following entering reservoir average daily discharge 10 000,15 000,20 000m 3/s.