龙羊峡水库水沙调控特征分析  

Analysis of water and sediment regulation of Longyangxia reservoir

作　　者：侯素珍[1] 王平[1] 郭彦[1] 楚卫斌[1] 

机构地区：[1]黄河水利科学研究院,郑州450003

出　　处：《水力发电学报》2013年第6期151-156,共6页Journal of Hydroelectric Engineering

基　　金：国家重点基础研究发展计划资助(2011CB403303);"十二五"国家科技支撑计划项目(2012BAB02B03)

摘　　要：龙羊峡水库是黄河上游的控制性工程,具有多年调节的能力。本文利用龙羊峡水库蓄泄水资料和控制站的实测资料,对水库运用以来的调控特征、径流泥沙参数特征进行了分析。研究表明,龙羊峡水库蓄泄过程存在年内小周期和年际大周期,对水沙的调控特征主要表现在,洪峰流量大幅度削减,年内流量过程调平,月径流量分配趋于均匀,年径流变差系数减小,蓄水同时也拦截了89%的泥沙量,泥沙径流关系发生变化。研究成果可为水库运用方式优化提供依据。The Longyangxia reservoir is a control works for the pluriennial regulation on the upper Yellow mainstream. This paper analyzes the characteristics of reservoir regulation, runoff and sediment transport for the period of reservoir operation, using the data of storage and discharge and the measured data at the control stations. The results show that the storage and discharge process of this reservoir is featured with annual short period and inter-annual long period, and the major roles of its water regulation are great reduction in peak discharge, leveling annual discharge process, more uniform distribution of monthly runoff, and reduction in variation coefficient of annual runoff. As a result of water storage, 89% of the incoming sediment is detained in the reservoir and the relationship between sediment load and runoff is changed. The results would provide a basis for optimization of reservoir operation.

关 键 词：河流泥沙工程学 水沙调控特征 资料分析 龙羊峡水库 

分 类 号：TV145[水利工程—水力学及河流动力学]