黄河冲淤特性“相对清水冲刷、相对浑水淤积”  

Critical condition between scour and siltation in the Yellow river

作　　者：梁志勇[1] 李文学[2] 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]黄河水利科学研究院,郑州450003

出　　处：《水力发电学报》2004年第4期88-91,共4页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金创新研究群体科学基金资助项目 (50 2 2 1 90 3 3)

摘　　要：本文回顾总结了以往对黄河干支流河道冲淤特性的研究情况 ,利用所提出的冲淤临界流量与含沙量的关系与渭河下游、黄河下游进行了对比。以此为基础 ,勾画出了黄河干支流冲积河道“相对清水冲刷、相对浑水淤积”的物理图景 ,提出了多沙河流“相对清水冲刷、相对浑水淤积”The characteristics of scour and siltation in the middle and lower Yellow River channels is reviewed in this paper.The relation of discharge and sediment concentration under critical conditions between scouring and siltation was derived and compared with the field data of the Yellow River and its tributaries.It is shown that the Yellow River scours when river flow is relatively clear and silt up when the flow is relatively muddy,the critical values between relatively clear and relatively muddy can be calculated.

关 键 词：河流泥沙工程学 河床演变 冲淤特性 临界流量 黄河 冲积河道 

分 类 号：TV145.1[水利工程—水力学及河流动力学]