流量与含沙量相关性对输沙效率影响的研究  

Study on impact from correlation between discharge and sediment concentration on sediment transport efficiency

作　　者：段圆圆[1,2] 周祖昊[1] 刘蛟[2] 梁标 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038 [2]华北水利水电学院,河南郑州450011 [3]中水集团北京勘测设计研究院,北京100024

出　　处：《水利水电技术》2012年第12期64-66,73,共4页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金重点项目(50939006);国家自然科学基金创新群体项目(51021006);"十一五"国家科技支撑计划重点项目课题(2006BAB06B06)

摘　　要：从流量与含沙量的相关性出发,推导出当流量与含沙量呈正相关时,水沙过程的波动性会减少输沙用水量;通过实测资料分析,黄河下游天然河道中流量和含沙量是基本呈正相关的,而通过小浪底调水调沙人工塑造的水沙过程,流量与含沙量相关系数越大,输沙用水量越小,输沙效率的增幅越高。In accordance with the correlation between discharge and sediment transport, it is deduced that the fluctuation during the runoff and sediment process will reduce the water consumption for sediment transport, when a positive correlation exists between discharge and sediment transport. The analysis on the relevant observed data shows that the discharge and sediment in the natural channel of the Lower Yellower River is basically to be a positive correlation, and that the larger the correlation coefficient between discharge and sediment, the less the water consumption for sediment transport is and the higher the increment of the sed- iment transport efficiency is for the runoff and sediment process manually created through the flow and sediment regulation from Xiaolangdi Reservoir.

关 键 词：黄河下游 相关系数 水沙过程 输沙用水量 输沙效率 调水调沙 

分 类 号：TV143[水利工程—水力学及河流动力学]