白石水库洪水过程泥沙冲淤数值模拟分析  

Numerical Simulation Analysis of Sediment Erosion and Deposition of Baishi Reservoir

作　　者：郭维东[1] 李东斌[1] 李晓丽[1] 胡艳[1] 

机构地区：[1]沈阳农业大学水利学院,辽宁沈阳110866

出　　处：《水电能源科学》2013年第6期89-92,共4页Water Resources and Power

基　　金：国家自然科学基金资助项目(40071183)

摘　　要：为研究白石水库泥沙冲淤特性,选取水库大坝至上游BD20断面,分别模拟汛期典型洪水过程和百年一遇洪水过程,分析洪水过程泥沙冲淤变化。结果表明,白石水库洪水期间最大输沙量与最大流量并不同步,在库区弯道处凹岸库底冲刷、凸岸库底淤积;同一断面的洪峰流量、最大输沙率不同步;洪水过后,淤积厚度随控制水位的升高而减小。For the study of Baishi Reservoir sediment erosion and deposition characteristics,numerical simulation of sediment erosion and deposition in flood season is made on the basic of river segment from dam to upstream cross section BD20.And the typical flood process and the hundred-year flood are simulated.The results show that during the flood period,the maximum sediment discharge does not synchronize with the maximum flow;in the bend of reservoir area,concave bank scours and convex bank deposits;in the same section,the peak flow does not synchronize with the maximum sediment rate;after the flood depletion,deposition thickness decreases with the increase of water level control.

关 键 词：白石水库 洪水过程 泥沙冲淤 数值模拟 

分 类 号：TV145[水利工程—水力学及河流动力学] TV697.22