RESEARCH ARTICLE


Numerical Simulation of the Seepage Field and the Analysis of its Sensibility Based on Finite Element Method



Hongyang Zhang*, Xianqi Zhang*, Cundong Xu
School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, China.


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Creative Commons License
© 2015 Zhang et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, China; Tel/Fax: +86-0371-69127403; E-mail: zhangxianqi@ncwu.edu.cn


Abstract

The distribution characteristics and migration mechanism of seepage field of reservoir groundwater can determine the geographical characteristics of reservoir area to a large extent. The permeability of reservoir area is especially important since it is an important indicator of karst development characteristics and its hydrogeological condition in karst area, and it’s difficult to conduct quantitative analysis of its parameters. According to the needs of practical engineering application, I use the C# and FORTRAN program to design a calculation method. I also use seepage field numerical simulation in reservoir area of one pumped storage power station on the east to testify the correctness and practicability of this calculation method. Judging from the groundwater level contour map, we can see that groundwater shed and surface water shed are basically the same. Groundwater can be distributed to surrounding areas from the upper reservoir. Because of the resistance effect of non-karst area on north and south, groundwater flows out in the form of spring in north and south. The groundwater flows to Zimei Bridge on east side, and Yaoshiwan on west side. The repeated experiments of parameters show that groundwater seepage field is insensitive to the change of other areas’ permeability parameter. Results show that this calculation method is well-adapted, accurate, applicable and practical.

Keywords: Finite element method, hydrogeology, seepage field, sensitivity analysis, numerical simulation.