基于压电效应的大地极化声子模拟研究

doi:10.11720/wtyht.2021.1279

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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.

Key words： geodetic polarization piezoelectric effect electromagnetic radiation forward modeling

Received: 27 May 2020 Published: 27 July 2021

ZTFLH:

P631

Corresponding Authors: YAN Jia-Bin E-mail: wuyangcsu@163.com

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Cite this article:

Yang WU,Jia-Bin YAN. A study of the simulation of geodetic polarization based on piezoelectric effect[J]. Geophysical and Geochemical Exploration, 2021, 45(3): 742-749.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1279 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I3/742

Variation curve of electromagnetic radiation frequency with rock parameters

Schematic diagram of inclined fracture model

The electric field amplitude of the fissure varies with the inclination angle

Crack electric field vector changes with inclination angle

Schematic diagram of combined fracture model

The electric field amplitude of the combined fracture

Electric field vector of combined fracture

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