周宁抽水蓄能碾压混凝土重力坝工作性态影响因素分析  

Analysis of Influencing Factors of Working Behavior of RCC Gravity Dam for Zhouning Pumped Storage Power Station

作　　者：李龙龙 张圣煌 卢雨欣 王振红[2] 张步 汪娟 张凯恒 LI Long-long;ZHANG Sheng-huang;LU Yu-xin;WANG Zhen-hong;ZHANG Bu;WANG Juan;ZHANG Kai-heng(Huadian Fuxin Zhouning Pumped Storage Co.,Ltd.,Ningde 355400,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)

机构地区：[1]华电福新周宁抽水蓄能有限公司,福建宁德355400 [2]中国水利水电科学研究院,北京100038

出　　处：《水电能源科学》2025年第4期153-157,207,共6页Water Resources and Power

基　　金：国家重点研发计划(2021YFC3090102,2021YFC3090104);国家自然科学基金项目(52192672)。

摘　　要：抽水蓄能电站大坝由于其独特的运行模式,面临的运行条件比常规大坝要复杂得多。以周宁抽水蓄能电站下水库大坝为例,构建三维有限元模型,分析周期性环境温度变化、库盘水压及坝面水压对大坝温度、应力和位移的影响。结果表明,坝面水压对大坝影响最显著,周期性环境温度次之,库盘水压影响最小,这3种因素导致的坝体最大位移比例约为13.34∶6.7∶3.3,坝面水压是造成抽蓄碾压混凝土大坝变形位移的主要原因。在工程施工设计以及相关数值仿真中,应特别注意蓄水时机的选择,以防损害工程质量或影响计算结果的准确性。研究成果为同类抽水蓄能电站的施工设计提供了参考,并为周宁抽水蓄能电站的安全运营提供了指导。The pumped storage power station dams,due to their unique mode of operation,are faced with much more complex conditions than conventional dams.A three-dimensional finite element model is constructed for the lower reservoir dam of Zhouning Pumped Storage Power Station as a case study.The effects of cyclic ambient temperature changes,reservoir water pressure and dam face water pressure on the temperature,stress and displacement of the dam are analyzed.The results show that the dam surface water pressure has the most significant impact on the dam,followed by the cyclic ambient temperature,while the reservoir pan water pressure has the least effect.The ratio of the maximum displacement of the dam body caused by these three factors is about 13.4:6.7:3.3,which highlights that the dam surface water pressure is the main cause of deformation and displacement of pumped-storage crushed concrete dams.In the engineering construction design and related numerical simulation,special attention should be paid to the selection of the timing of water storage to prevent damage to the quality of the project or affect the accuracy of the calculation results.The research results provide a valuable reference for the construction design of similar pumped storage power plants,and provide guidance for the safe operation of Zhouning Pumped Storage Power Station.

关 键 词：抽水蓄能 重力坝 单因素 有限元 工作性态 

分 类 号：TV642.3[水利工程—水利水电工程]