直流电阻率法与工作面透明化

doi:10.11720/wtyht.2022.1459

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Abstract

The transparency of the fully mechanized mining face achieved using advanced exploration equipment and technology can make the information on coal seams more comprehensive and accurate and can lay a solid foundation for the intelligent production of the fully mechanized mining face. DC resistivity method is a common method for geophysical exploration. Owing to the high stability, great anti-interference performance, and sensitive responses to low- and high-resistance bodies, the DC resistivity method is one of the key means of achieving the transparency of the mining face. To explore the application effects of the method in the transparency of the mining face, this study used different working methods to conduct three-dimensional forward and inverse modeling of the response characteristics for solving proven water-bearing structures of the mining face and frontal advanced detection of roadways. The results show that the distribution laws of 3D DC inversion data obtained by corresponding working methods were basically consistent with those of the initial model, and the DC resistivity method can well distinguish between high- and low-resistivity bodies. Therefore, this study can guide the application of the DC resistivity method in the transparency of mining face in practical engineering.

Key words： resistivity method advanced detection 3D forward and inverse modeling transparency of mining face

Received: 20 August 2021 Published: 21 June 2022

ZTFLH:

P631

Corresponding Authors: SU Ben-Yu E-mail: 439639673@qq.com;subenyu@cumt.edu.cn

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	Rong-Fu RAO
	Ben-Yu SU

Cite this article:

Rong-Fu RAO,Ben-Yu SU. Direct current resistivity method and the transparency of mining face[J]. Geophysical and Geochemical Exploration, 2022, 46(3): 563-569.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.1459 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I3/563

Mesh splitting schematic

Schematic diagram of tetrahedron cells

Electrode layout of working face

Schematic diagram of AMNB array

Working face detection model

Working face model mesh generation diagram

x-direction slice map of detection inversion result of working face

y-direction slice map of detection inversion result of working face

z-direction slice map of detection inversion result of working face

Three dimensional resistivity inversion map of working face detection

Traditional pole arrangement method of roadway space advanced detection

Schematic diagram of three survey lines for advanced detection of roadway space

Three line advanced detection pole running diagram

Forward modeling diagram of roadway advanced detection

Schematic diagram of mesh generation for advanced detection model of roadway

y-direction slice of roadway advanced detection inversion results

z-direction slice of roadway advanced detection inversion results

x-direction slice of roadway advanced detection inversion results

Three dimensional resistivity inversion map of advance detection of roadway

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