Research on Transient Electromagnetic Fast Imaging in Water Rich Area of Mine Goaf

To quickly and accurately detect the goaf rich water area in front of the coal mine roadway, MATLAB program is used to convert the secondary field induced voltage Vz(t) obtained by TEM into vertical field Hz(t)to calculate all-time apparent resistivity quickly. The apparent depth is calculated acco...

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Bibliographic Details
Published in:Meikuang Anquan
Main Author: YUAN Yongbang
Format: Article
Language:Chinese
Published: Editorial Office of Safety in Coal Mines 2020-05-01
Subjects:
Online Access:https://www.mkaqzz.com/cn/article/id/6811