水资源与水工程学报2012，Vol.23Issue(4)：145-147,3.
黄河宁蒙河段冲淤演变特点及趋势分析
Analysis of characteristic and trend of scouring and silting evolution in Ningxia and inner-mongolia reach of Yellow River
摘要
Abstract
The further understanding of the fluvial processes in Ningxia and Inner - mongolia reach of Yellow River is got through analysing the scouring and silting evolution of the channel and its flood conveyance capacity change. According to the designed water - sediment conditions of Xiaheyan hydrological station, the scouring and silting variation trend in 2020 and 2030 was estimated. The analysis indicated that in recent years, sediment transport capacity of the channel was reduced, bahkfull discharge of Bay-angaole, Sanhuhekou, Zhaojunfen sections had a decreasing trend, river siltation increased and main stream was clogged by tributaries more frequently. Based on the designed water - sediment conditions of Xiaheyan hydrological station, the quantities of water and sediment of Toudaoguai hydrological station and interzone sediment diversion were calculated, and the scouring and silting amount from Xiaheyan to Toudaoguai was estimated by using sediment balance method and considering incoming sediment from tributaries and windblown sand transported into the main stream of Yellow River. The annual average deposition amount of the channel of Ningxia and Inner-mongolia reach will be 78 million tons in 2020 and 80 million tons in 2030.关键词
水量/沙量/冲淤演变/冲淤量Key words
water volume/ sediment volume/ scouring and silting evolution/ scouring and silting quantity分类
建筑与水利引用本文复制引用
常温花,王平,侯素珍,李萍..黄河宁蒙河段冲淤演变特点及趋势分析[J].水资源与水工程学报,2012,23(4):145-147,3.基金项目
“十二五”国家科技支撑计划项目(2012BAB02B03) （2012BAB02B03）
