水利学报2012，Vol.43Issue(5)：594-601,8.
黄河下游塑槽输沙需水量计算方法
Calculation methods of water demand for channel sediment transport in the Lower Yellow forming and River
摘要
Abstract
The energy dissipation mechanism of sediment-laden flow and the energy allocation for both channel forming and sediment transport were studied based on the energy balance principle. It is believed that the energy consumption of river flow is utilized in two ways： channel forming and sediment transport. One part of the flow energy is used to overcome the resistance of channel boundary, and another part of the flow energy is used to transport the sediment carried by the flow, in order to maintain an equilibrium state in sediment transport. Methods for the calculation of water demand for channel forming and sediment transport in lhe Lower Yellow River were developed based on the energy balance principle and in combina- tion with the cumulative effect of flow discharge and sediment load on bankfull discharge. Satisfactory re- suits were obtained when the developed methods were applied to the calculation of water demand at major hydrological stations in the Lower Yellow River. Furthermore, a method for the calculation of water demand for the whole Lower Yellow River course was proposed by utilizing the water discharge and sediment load in the reaches of San-Hei-Xiao as the input variables. Formulations for the range of water demand for the maintenance of a bankfull discharge of 4 000m3/s in the Lower Yellow River were provided.关键词
黄河下游/需水量/平滩流量/能量平衡/河床演变Key words
Lower Yellow River/water demand/bankfull discharge/energy balance/fluvial processes分类
建筑与水利引用本文复制引用
吴保生,郑珊,李凌云..黄河下游塑槽输沙需水量计算方法[J].水利学报,2012,43(5):594-601,8.基金项目
国家重点基础研究发展计划资助项目 （）
中荷战略科学联盟计划项目 （）
