Volume 47 Issue 3
Jun.  2019
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LU Bin. Method of transparent working face based on dynamic detection of cross hole seismic subdivision[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(3): 10-14. DOI: 10.3969/j.issn.1001-1986.2019.03.002
Citation: LU Bin. Method of transparent working face based on dynamic detection of cross hole seismic subdivision[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(3): 10-14. DOI: 10.3969/j.issn.1001-1986.2019.03.002
shu

Method of transparent working face based on dynamic detection of cross hole seismic subdivision

  • Xi'an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi'an 710077, China

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National Key R&D Program of China(2018YFC0807804)

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  • Received Date: December 29, 2018
  • Published Date: June 24, 2019
    Graphical Abstract
    • Abstract
  • Transparent working surface is an important part of intelligent coal mining. It provides detailed geological structure information of working face for intelligent coal mining. This paper proposes a working surface exploration method based on segmented and dynamic cross-hole seismic, which can realize progressive fine detection of coal working face. The method is a new development with seismic while mining, which is using the coal cutter as seismic source. The main idea is to image the working face segmented by deploying some detectors in a series of horizontal holes parallel to the long wall. The method performs fine imaging on the subdivided area. Compared with the existing seismic while mining, this method has obvious advantages. Firstly, the ray coverage is more uniform without blind zone. Secondly, the detection area is subdivided, so the detection accuracy is higher. The "virtual" source method, seismic interferometry, can be used to obtain shot gathers with high SNR, which can further improve the detection accuracy. The study believes that this method can adapt to the target requirements of transparent working face, and it is expected to become an important part of intelligent mining.
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    • References (20)
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