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| A study of the simulation of geodetic polarization based on piezoelectric effect |
WU Yang1,2( ), YAN Jia-Bin1,2 |
1. School of Earth Sciences and Information Physics, Central South University, Changsha 410083, China
2. Key Laboratory of Non-ferrous Resources and Geological Hazard Detection, Changsha 410083, China |
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Abstract Geodetic polarization exploration technology is a passive source geophysical electromagnetic exploration method using natural electromagnetic radiation. Based on the piezoelectric effect of rock, the expression of electromagnetic radiation produced in the process of rock fracturing was derived. The influence factors of electromagnetic radiation frequency were analyzed, and the frequency response characteristics of electromagnetic radiation from fracturing were studied by numerical simulation. The results show that the geodetic polarization exploration technology based on the piezoelectric effect of rock has similar electromagnetic response characteristics to other electromagnetic detection methods, and the geodetic polarization exploration technology has potential application value.
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Received: 27 May 2020
Published: 27 July 2021
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Corresponding Authors:
YAN Jia-Bin
E-mail: wuyangcsu@163.com
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Variation curve of electromagnetic radiation frequency with rock parameters
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Schematic diagram of inclined fracture model
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The electric field amplitude of the fissure varies with the inclination angle
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Crack electric field vector changes with inclination angle
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Schematic diagram of combined fracture model
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The electric field amplitude of the combined fracture
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Electric field vector of combined fracture
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