摘要
为研究闹德海水库泥沙冲淤特性,选取水库大坝至上游W18断面对汛期泥沙冲淤进行数值模拟计算,分别模拟典型洪水过程和百年一遇洪水过程。结果表明,悬移质浓度值的起伏涨落与流量的变化基本一致,峡谷段冲淤平衡对库容无影响,汛期抬高蓄水位可行,且当洪峰来量小于100 m3/s时,采用定时单孔控制泄量可有效增加库容水量。
For study of Naodehai Reservoir sediment erosion and deposition characteristics,numerical simulation of sediment erosion and deposition in flood season is implemented with choice of river segment from dam to upstream section of W18.And the typical flood process and the hundred-year flood are simulated.The results show that the concentration of suspended load rise and fall synchronizes with the flow change;sediment erosion and deposition in the canyon does not affect the reservoir capacity;rising the pool level is feasible in flood season;and it can increase the capacity of the reservoir effectively by timely controlling the drain discharge in single-hole when the peak flow is less than 100 m3/s.
出处
《水电能源科学》
北大核心
2011年第9期110-114,共5页
Water Resources and Power
关键词
闹德海水库
洪水过程
泥沙冲淤
数值模拟
Naodehai Reservoir
flood process
sediment erosion and deposition
numerical simulation
