摘要
水库建设对下游河道水文情势影响较大,笔者在分析阳霞水库初期蓄水对水文情势影响的基础上,采用一维水动力模型预测阳霞水库运行期对库区和下游河段水文情势的变化。通过选取阳霞水库坝址断面和阳霞河渠首断面作为预测断面,选用流量、水深、流速和水面宽等参数计算分析水库运行对水文情势的影响,并分析河段生态流量的满足程度。结果表明,两个预测断面的下泄流量均能满足生态流量控制要求。研究结果可为水库建设、调蓄和运营提供技术依据。
Reservoir construction has a great influence on the hydrological regime of the downstream river channel.Based on the analysis of the influence of the initial impoundment of Yangxia Reservoir on the hydrological regime,the one-dimensional hydrodynamic model is used to predict the change of the hydrological regime of the reservoir area and the downstream river section during the operation period of Yangxia Reservoir.By selecting the dam site section of Yangxia Reservoir and the head section of Yangxia River as the prediction section,the influence of reservoir operation on the hydrological regime is calculated and analyzed by selecting parameters such as flow,water depth,flow velocity and water surface width,and the satisfaction degree of the ecological flow of the river section is analyzed.The results show that the discharge of the two predicted sections can meet the requirements of ecological flow control.The research results can provide technical basis for reservoir construction,regulation and operation.
作者
陈强
CHEN Qiang(Xinjiang Bayingguoleng Hydrological Survey Bureau,Korla 841099,China)
出处
《红水河》
2024年第1期23-27,43,共6页
Hongshui River
关键词
一维水动力学模型
水文情势
影响
阳霞水库
one-dimensional hydrodynamic model
hydrological regime
influence
Yangxia Reservoir
