三维地电断面激发极化法有限元数值模拟

黄俊革; 阮百尧; 鲍光淑

Volume 28 Issue 3

May 2003

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HUANG Jun-ge, RUAN Bai-yao, BAO Guang-shu, 2003. Finite Element Method for IP Modeling on 3-D Geoelectric Section. Earth Science, 28(3): 323-326.

Citation:

HUANG Jun-ge, RUAN Bai-yao, BAO Guang-shu, 2003. Finite Element Method for IP Modeling on 3-D Geoelectric Section. Earth Science, 28(3): 323-326.

HUANG Jun-ge, RUAN Bai-yao, BAO Guang-shu, 2003. Finite Element Method for IP Modeling on 3-D Geoelectric Section. Earth Science, 28(3): 323-326.

Citation:

HUANG Jun-ge, RUAN Bai-yao, BAO Guang-shu, 2003. Finite Element Method for IP Modeling on 3-D Geoelectric Section. Earth Science, 28(3): 323-326.

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Finite Element Method for IP Modeling on 3-D Geoelectric Section

1.
Institute of Information and Physics, Central South University, Changsha 410083, China
2.
Department of Resources and Environment Engineering, Guilin Institute of Technology, Guilin 541004, China

Received Date: 2002-06-08
Publish Date: 2003-05-25

Abstract

Abstract

FEM is used to modeling IP sounding on 3-D geoelectric section. First, this paper presents the 3-D boundary value and variation equation of point-source electrical field on a 3-D structure. Then, the boundary condition for the infinite boundary is simplified to improve calculation speed and precision. On this basis, the partial derivatives matrix for the ratio between the apparent resistivity and the model resistivity parameters is calculated, and at the same time, the IP on 3-D geoelectric section is positively simulated. Compared with equivalent resistivity method, this simulation saves much calculation time. The test of several relative typical geoelectric models shows that this modeling method is correct and feasible.
- 3-D geoelectric section,
- IP,
- finite element method,
- partial derivatives

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References(7)

References

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