摘要
河床演变中普遍存在着滞后响应现象,而以往的水库泥沙研究对滞后响应现象很少考虑。本文在作者近期关于水库泥沙淤积滞后现象研究的基础上,从河床演变学的自动调整原理出发,建立了水库泥沙淤积滞后响应的理论模型。并以三门峡水库泥沙淤积为例,利用提出的理论模型分析了库区累计淤积量对流量加权平均坝前水位的响应、潼关高程对年入库水量的响应及水库末端比降对年平均坝前水位的响应,结果表明所建理论模型能够描述泥沙淤积的特征,为水库泥沙淤积的研究提供了一种新的方法。
The delayed response of sedimentation is a phenomenon commonly encountered in fluvial processes of rivers.Based on the author s recent findings on this phenomenon and the self regulating principle of river evolution,a theoretical model for describing the delayed response happened to the deposition of reservoir is developed.The proposed model is applied to analyze the response of accumulative deposition in the Sanmenxia Reservoir to the discharge-weighted average pool level,the response of Tongguan s elevati...
出处
《水利学报》
EI
CSCD
北大核心
2008年第5期627-632,共6页
Journal of Hydraulic Engineering
基金
国家自然科学创新研究群体科学基金(50221903)
国家“十一五”科技支撑计划(2006BAB06B04)
关键词
水库泥沙
河床演变
滞后响应
平衡状态
三门峡水库
reservoir sedimentation
fluvial process
delayed response
equilibrium state
Sanmenxia Reservoir
