华北水利水电大学学报（自然科学版）2025，Vol.46Issue(5)：43-52,10.DOI:10.19760/j.ncwu.zk.2025072
大水位变幅对抽水蓄能电站大坝工作性态影响分析
Analysis of Impact of Large Water Level Variations on Working Performance of Pumped Storage Power Station Dams
摘要
Abstract
[Objective]The water level of the reservoir dam in a pumped storage power station undergoes cyclic fluctuations of release and storage.Large water level variations cause continuous changes in boundary conditions such as dam temperature and stress,directly affecting the dam's working performance.To ensure the safe operation of the dam,this study investigates the impact of large water level variations on the dam's working performance in pumped storage power stations.[Methods]Taking the lower reservoir dam of the Zhouning Pumped Storage Power Station in Fujian Province as the research object,mo-nitoring data during the initial stage of impoundment were analyzed.Using a three-dimensional finite element method,the var-iation patterns of the temperature field,deformation field,and stress field of the dam under large water level variations were investigated.[Results](1)Reservoir water temperature showed a significant correlation with the multi-year average air tem-perature.(2)At the same elevation,the internal temperature of the concrete dam body was higher than at the sides,and af-ter impoundment,the surface temperature of the concrete below the water level was essentially consistent with the reservoir water temperature.(3)During the initial stage of impoundment,under large water level variations,the deformation and stress changes of the dam were relatively small,with the maximum deformation ranging from 0.15 to 0.17 mm/m.[Conclusion]The results provide technical support for the safe operation of the dam and have reference value for the construction and safe operation of similar pumped storage power station dams.关键词
抽水蓄能电站大坝/大水位变幅/蓄水运行初期/工作性态/安全分析Key words
pumped storage power station dam/large water level variations/initial impoundment stage/working performance/safety analysis分类
建筑与水利引用本文复制引用
周顺田,林兴铖,卢雨欣,王振红,汪娟,张凯恒,侯文倩..大水位变幅对抽水蓄能电站大坝工作性态影响分析[J].华北水利水电大学学报（自然科学版）,2025,46(5):43-52,10.基金项目
国家重点研发计划项目(2021YFC3090102,2021YFC3090104) （2021YFC3090102,2021YFC3090104）
国家自然科学基金项目(52192672). （52192672）
