The concealed small faults detection based on gas drainage boreholes along and cross the coal seam

Authors

XUE Honglai, School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
WEN Zhe, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China

Abstract

The faults have great influence on coal and gas outburst disasters, and accurate detection of faults location is very important to prevent such disasters. At present, large number of gas drainage boreholes were drilled in coal mines, but the geological information contained in these boreholes is not fully paid attention to, thus the method to detect concealed faults by gas-drainage boreholes was proposed. In this paper, by establishing a mathematical model for fault detection based on gas drainage drilling, a three-dimensional coordinate of fault planes and coal seam floors is calculated, and basic parameters such as fault location, drop, attitude and fault properties are determined by drawing contour maps of coal seam floors and their three-dimensional maps. Based on the graphical user interface(GUI) of Matlab, a software for fault detection by gas drainage drilling is designed to visualize fault information and provide a technical platform for accurate fault identification. The technical method of detecting small hidden faults by gas drainage drilling is successfully implemented through a combination of drilling location, model calculation, image processing and fault identification.

Keywords

geological exploration, small fault, coal roadway, gas drainage, drilling borehole

DOI

10.3969/j.issn.1001-1986.2021.03.009

Recommended Citation

X W. (2021) "The concealed small faults detection based on gas drainage boreholes along and cross the coal seam," Coal Geology & Exploration: Vol. 49: Iss. 3, Article 10.
DOI: 10.3969/j.issn.1001-1986.2021.03.009
Available at: https://cge.researchcommons.org/journal/vol49/iss3/10

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