Abstract: Sanguozhuang reservoir has been in operation for more than 20 years. The situation of sediment in the reservoir area has changed greatly under the influence of human activities. Thus, it is urgent to analyze the reservoir sediment and its influence on normal operation of the reservoir. In this paper, the sediment yield of Sanguozhuang reservoir basin as well as the sediment in front of the dam after 20-year and 50-year reservoir operation are estimated. Then, sediment distribution is calculated. By comparison between the calculation results and the actual sediment situation, the reliability of calculation results is verified. Accordingly, the influence of sediment on dead water level and normal water level of the reservoir are analyzed, to provide basis for the review of the reservoir scale.

Key words: reservoir, sediment yield, sediment, reservoir scale

摘要： 三锅桩水库自修建至今已20余年，受人类活动影响，库区泥沙淤积情况发生了较大变化，分析泥沙淤积对水库正常运行的影响十分迫切。笔者估算了三锅桩水库流域产沙量、水库运行20年及50年后的坝前泥沙淤积量和正常蓄水位以下泥沙淤积分布，并将20年泥沙淤积计算结果与实际淤积情况进行对比，验证计算成果的合理性；分析坝前泥沙淤积对死水位、正常蓄水位等的影响，为水库工程规模复核提供依据。

关键词: 水库, 产沙量, 泥沙淤积, 水库规模