| 长沙坝水库大坝加固方案有限元分析及安全评价 |
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| 引用本文： | 冯道雨,傅少君,彭成佳,陈胜宏.长沙坝水库大坝加固方案有限元分析及安全评价[J].武汉大学学报(工学版),2004,37(5):50-53. |
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| 作者姓名： | 冯道雨 傅少君 彭成佳 陈胜宏 |
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| 作者单位： | 1. 中国水利水电建设集团公司,北京,100761
2. 武汉大学水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 摘 要： | 针对长沙浆砌石拱坝运行多年后出现严重裂缝和不对称变形现象,提出了大坝加固方案,并采用三维有限元方法,全过程模拟了坝体施工过程,并分时段模拟了地基应力、坝体自重应力和水沙荷载的分级加载,分析了加固后坝体应力应变分布规律,对大坝加固方案的可行性和合理性作出评价,为工程设计提供依据和建议.
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| 关 键 词： | 拱坝 有限元法 加固方案 仿真分析 安全评价 |
| 文章编号： | 1671-8844(2004)05-050-04 |
| 修稿时间： | 2003年11月20 |
Finite element analysis of reinforcement scheme of Changsha dam and its safety evaluation |
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| FENG Dao-yu,FU Shao-jun,PENG Cheng-jia,CHEN Sheng-hong.Finite element analysis of reinforcement scheme of Changsha dam and its safety evaluation[J].Engineering Journal of Wuhan University,2004,37(5):50-53. |
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| Authors: | FENG Dao-yu FU Shao-jun PENG Cheng-jia CHEN Sheng-hong |
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| Affiliation: | FENG Dao-yu~1,FU Shao-jun~2,PENG Cheng-jia~2,CHEN Sheng-hong~2 |
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| Abstract: | The serious cracks and asymmetric deformation have appeared in Changsha Masonry Arch Dam after it has operated for more than 30 years. In this paper, a reinforcement scheme for the dam is proposed. The construction process are emulated completely and the foundation stress, deadweight of dam, water and soil load are also emulated by using 3-D FEM. The distribution characteristics of stress and deformation of the reinforced dam are analyzed. According to the analysis, the feasibility and rationality of the reinforcement scheme is justified, some proposals for design and construction are put forward too. |
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| Keywords: | arch dam finite element method reinforcement scheme simulation analysis safety evaluation |
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