玻烈河水库面板堆石坝三维静动力有限元分析  

Three-Dimensional Static and Dynamic Finite Element Analysis of Concrete Face Rockfill Dam of Boliehe Reservoir

作　　者：谭倬 张涵 TAN Zhuo;ZHANG Han(Chongqing Water Conservancy and Electric Power Construction Survey,Design and Research Institute Co.,Ltd.,Chongqing 404100,China;China Water Resources Beifang Investigation Design and Research Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]重庆市水利电力建筑勘测设计研究院有限公司,重庆404100 [2]中水北方勘测设计研究有限责任公司,天津300222

出　　处：《河南科技》2024年第17期41-45,共5页Henan Science and Technology

摘　　要：【目的】研究地震作用下堆石坝应力变形规律,为面板堆石坝抗震设计提供依据。【方法】结合玻烈河水库面板堆石坝结构特性和材料特性,开展三维静动力有限元分析。采用邓肯-张E-B模型描述堆石体静力特性,以及等效非线性黏弹性模型描述堆石体动力特性。【结果】静力计算结果表明,蓄水期坝体的最大垂直位移是最大坝高的0.45%,坝体最大应力在合理范围内。动力计算结果表明,加速度响应坝体顺河向、横河向、垂直方向均较强烈。永久沉降约为坝高的0.33%,坝体整体稳定。【结论】分析结果表明,玻烈河水库面板堆石坝设计满足规范要求,设计合理。[Purposes]This paper studies the stress deformation law of rockfill dam under earthquake ac-tion to provide guidance for the seismic design of concrete face rockfill dam.[Methods]Three-dimensional static-dynamic finite element analysis was conducted,considering the structural and mate-rial characteristics of the Baolie River Reservoir concrete face rockfill dam.The Duncan-Zhang E-B model was utilized to describe the static properties of the rockfill,while an equivalent nonlinear visco-elastic model was employed to characterize its dynamic behavior.[Findings]Static calculations indicate that the maximum vertical displacement of the dam body during the reservoirfilling period accounts for 0.45%of the maximum dam height,and the maximum stress in the dam body falls within a reasonable range.Dynamic calculations reveal that the dam body experiences stronger acceleration responses in the downstream,transverse,and vertical directions,with a permanent settlement of approximately 0.33%of the dam height,ensuring overall stability of the dam body.[Conclusions]Analysis results demonstrate that the design of the concrete face rockfill dam in the Baolie River Reservoir meets regulatory require-ments and is technically sound.

关 键 词：面板堆石坝 静动力分析 应力变形 

分 类 号：TV641.4[水利工程—水利水电工程] TV312