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Related Experiment Video

Updated: May 16, 2025

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

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Study on the resolution capability of borehole transient electromagnetic method.

Tao Fan^1,2, Hao Wang^3,4, Zaibin Liu^5,6

¹XI'AN CCTEG Transparent Geology Technology Co., Ltd, Xianyang, 712000, China. A43160701@163.com.

Scientific Reports

|May 12, 2025

Summary

The borehole transient electromagnetic method (BTEM) can detect water hazards in coal mines. This study simulates BTEM to determine its resolution limits for detecting underground anomalies at various distances and angles.

Keywords:

Borehole transient electromagnetic Coal mine tunnel Water hazard

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Area of Science:

Geophysics
Mining Engineering
Electromagnetism

Background:

Water hazards pose significant risks in coal mine tunnel construction.
The borehole transient electromagnetic method (BTEM) offers potential for detecting these hazards by minimizing interference from tunnel structures.
Limited research exists on BTEM's resolution capabilities for anomaly detection.

Purpose of the Study:

To investigate the resolution of the borehole transient electromagnetic method (BTEM) in detecting anomalous bodies.
To evaluate the influence of distance, deflection angle, conductivity, and anomaly shape on BTEM detection.
To determine the minimum resolution of BTEM at specific distances.

Main Methods:

Conducted three-dimensional simulations of the BTEM.
Varied parameters including distance, deflection angle, conductivity, and anomaly shape.
Analyzed simulation results to assess minimum resolution and sensitivity to low-resistance bodies.
Performed additional simulations at 50 cm and 100 cm distances.

Main Results:

Provided insights into BTEM's minimum resolution across different deflection angles and distances.
Examined the method's sensitivity to detecting low-resistance bodies.
Quantified resolution limits at specified distances.

Conclusions:

The study offers valuable data on BTEM's resolution capabilities for water hazard detection in coal mines.
Simulation results guide the application and interpretation of BTEM data in challenging underground environments.
Further research can refine BTEM techniques for enhanced safety in mining operations.