The Research on the Finite Element Seepage Calculation of Earth Dam Considering the Effect of Unsaturated Region
The Research on the Finite Element Seepage Calculation of Earth Dam Considering the Effect of Unsaturated Region
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DOI：
10.1109/icdma.2013.368
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发表时间：
2013-06
期刊：
影响因子：
--
通讯作者：
Ma Chengcheng;L. Shouyi;Wu Liya
中科院分区：
文献类型：
--
作者：
Ma Chengcheng;L. Shouyi;Wu Liya
在传统的土坝渗流计算中，饱和土的渗透系数被认为是固定值。实际上，土坝渗流具有非饱和特性。非饱和土的渗透系数是一个与体积含水量和孔隙水压力密切相关的非线性函数。本文以饱和-非饱和土渗流计算理论为基础，考虑非饱和区对渗流场的影响，对某土坝进行了渗流有限元计算研究。结果表明，考虑非饱和土渗流影响的土坝有限元计算研究可以得到更为准确合理的渗流场计算结果。
In the traditional earth dam seepage calculation, the permeability coefficient of saturated soil is considered as fixed value. Actually, the seepage of earth dam carries out unsaturated characteristics. The permeability coefficient of unsaturated soil is a nonlinear function which is closely related to volumetric water content and pore water pressure. Based on the saturated-unsaturated soil seepage calculation theory and considering the effects of unsaturated region on the seepage field, seepage finite element calculations and researches of one earth dam have been done in this paper. The results show that the study of the earth dam finite element calculation which considers the effects of unsaturated soil seepage can get more accurate and reasonable seepage field calculation results.