| 考虑非饱和区影响的土石坝渗流有限元计算 |
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| 引用本文： | 李章浩,王瑞骏,吕海东,陆丽.考虑非饱和区影响的土石坝渗流有限元计算[J].红水河,2005,24(3):10-12,17. |
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| 作者姓名： | 李章浩 王瑞骏 吕海东 陆丽 |
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| 作者单位： | 西安理工大学水利水电学院,陕西,西安,710048;西安理工大学水利水电学院,陕西,西安,710048;西安理工大学水利水电学院,陕西,西安,710048;西安理工大学水利水电学院,陕西,西安,710048 |
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| 摘 要： | 传统的有限元饱和渗流计算往往把渗透系数取作定值,而实际上非饱和土渗透系数呈非线性函数关系,与体积含水率、孔隙水压力密切相关.基于饱和-非饱和土渗流计算模型与原理,本文考虑渗流场非饱和区对堤坝渗流的影响,对某土石坝进行了渗流有限元计算与分析.算例结果表明,应用该思想与方法计算土石坝渗流,可以获得较为准确合理的渗流场计算结果.
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| 关 键 词： | 土石坝 非饱和区 渗流计算 有限元 |
| 文章编号： | 1001-408X（2005）03-0010-03 |
| 收稿时间： | 2005-04-28 |
| 修稿时间： | 2005-04-28 |
Calculation of Seepage with FEM in Earth Dam Considering the Effect of Unsaturated Zone |
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| LI Zhang-hao,WANG Rui-jun,LU Hai-dong,LU Li.Calculation of Seepage with FEM in Earth Dam Considering the Effect of Unsaturated Zone[J].Hongshui River,2005,24(3):10-12,17. |
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| Authors: | LI Zhang-hao WANG Rui-jun LU Hai-dong LU Li |
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| Abstract: | Traditional finite element calculation of saturated seepage always takes permeability coefficient as a fixed value, actually the permeability coefficient of unsaturated soil appears to be in a non-linear function relation,and has close relation with volume moisture content and pore water pressure. Based on the calculation model and theory of saturated-unsaturated soil seepage, this passage takes the influence of unsaturated zone in seepage field on dam seepage into account, and it also does the seepage finite element calculation and analysis for a certain earth dam. The calculation result shows that more exact and reasonable calculation result of seepage field can be obtained by using this idea and method to calculate the earth dam seepage. |
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| Keywords: | earth dam unsaturated zone seepage calculation FEM |
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