| 白石水库渗流场有限元分析 |
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| 引用本文： | 闫澍旺,王瑞钢,王学军,李少明. 白石水库渗流场有限元分析[J]. 水力发电学报, 2003, 0(2): 53-61 |
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| 作者姓名： | 闫澍旺 王瑞钢 王学军 李少明 |
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| 作者单位： | 1. 天津大学建筑工程学院岩土工程研究所,天津,300072
2. 温州水利水电设计院,温州,325000 |
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| 摘 要： | 针对白石水库土坝的复杂渗流条件编制了有限元程序。对自由面的求解，在计算中提出了弃单元法算法，计算表明收敛快，和电拟结果对比显示该算法精度高，对计算无压渗流有通用性。用有限元方法对渗流量进行了计算。分析了实测水位和理论计算水位有较大差别的原因并提出相应的渗流稳定措施。此外，对大坝在库水位骤降情况下的稳定进行了分析。
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| 关 键 词： | 水力学 无压渗流 有限元 弃单元法 单宽渗流量 水位骤降 |
| 修稿时间： | 2002-09-15 |
Finite element analysis of seepage fields at Baishi earth dam |
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| Yan Shuwang Wang Ruigang Wang Xuejun Li Shaoming. Finite element analysis of seepage fields at Baishi earth dam[J]. Journal of Hydroelectric Engineering, 2003, 0(2): 53-61 |
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| Authors: | Yan Shuwang Wang Ruigang Wang Xuejun Li Shaoming |
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| Affiliation: | Yan Shuwang 1 Wang Ruigang 1 Wang Xuejun 1 Li Shaoming 2 |
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| Abstract: | A FEM program is made to calculate the complicated seepage of the earth dam at BaiShi reservoir and a new finite element algorithm called abandoned element method is developed to solve the problem of free surface of the unconfined seepage. This method is verified to have good precision and convergence by comparison of calculation results with electrical resistance simulation method, and can be applied to all kinds of unconfined seepage. The unit rate of seepage flow is calculated by FEM method. In addition, reasons for the difference between calculated and measured water levels are analyzed. Accordingly, measures for seepage stabilization are proposed in this paper. The stability of the earth dam is also analyzed under the rapid drawdown. |
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| Keywords: | hydraulics unconfined seepage FEM abandoned element method unit rate of seepage flow rapid drawdown |
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