| 柏叶口水库面板堆石坝变形数值分析 |
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| 作者姓名： | 薛志平 孙一清 张震 |
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| 作者单位： | 山西省柏叶口水库建设管理局,山西 吕梁 033000;河海大学水利水电学院,江苏 南京 210098 |
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| 基金项目： | 山西省水利科学技术研究与推广项目(2017XXH01，201801，TZ2019006) |
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| 摘 要： | 为了解柏叶口面板堆石坝变形规律,通过单元尺寸和曲率因子优化及多步逐级加载模拟大坝施工加载过程,应用COMSOL Multiphysics软件获取大坝竣工期、正常蓄水位、设计及校核洪水位4种工况下的,河床处180、左岸60及右岸245等断面的典型剖面的变形,结合某混凝土面板堆石坝工程,考虑分级加载的情况下,仿真模拟大坝填筑、混凝土面板浇筑过程,分析混凝土面板堆石坝的变形特性。研究结果表明本工程施工速度快对大坝整体变形规律改变不大,可为下一步预警指标的拟定提供参考。
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| 关 键 词： | 柏叶口水库 面板堆石坝 COMSOL 变形 数值分析 预警指标 |
| 收稿时间： | 2019/9/20 0:00:00 |
Numerical analysis of deformation of face rockfill dam of Baiyekou Reservoir |
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| Authors: | XUE Zhiping SUN Yiqing ZHANG Zhen |
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| Affiliation: | Shanxi Baiyekou Reservoir Construction Administration,Lueliang 033000 ,China;Hohai University,College of Water Conservancy and Hydropower,Nanjing 210098 ,China |
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| Abstract: | In order to understand the deformation rule of the Baiyekou face rockfill dam, the dam construction loading process is simulated by optimizing the element size and curvature factor and multi-step progressive loading. COMSOL Multiphysics software is used to obtain deformation of typical cross sections at river bed 180, left bank 60, and right bank 245 under four conditions of original flood level during the dam completion period, normal water level, design and calibration flood stage. Combined with a concrete faced rockfill dam project, considering grading loading, simulation of dam filling, during the concrete panel pouring process, the deformation characteristics of the concrete panel rockfill dam are analyzed. The research results show that the rapid construction of this project does not change the overall deformation law of the dam, and provide a reference for the formulation of early warning indicators. |
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