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Ground penetrating radar-based experimental simulation and signal interpretation on roadway roof separation detection

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Abstract

Roof separation is one of the major indications for coal mine roadway roof accidents. Therefore, it is important that efforts be made to detect roadway roof separation. Currently, the instrument used for detecting roadway roof separation is the roof-off-the-strata indicator, but its installation and use is complicated and the need is greater than can be managed. This thesis takes ground penetrating radar (GPR) as a means for roof separation detection and analyzes its feasibility for use in detecting roof separation both theoretically and experimentally. First, numerical simulation experiments on roof separation detection are carried out using GprMax2D software. The results show that it is feasible to detect roof separation by using GPR electromagnetic waves. Next, physical simulation experiment on roof separation detection is carried out using MALA GPR (RAMAC/GPR). Lastly,  the traditional image segmentation algorithm of 2D maximum between a cluster variance is improved to interpret the GPR signal. Good results were achieved using the improved algorithm to interpret detection signals of roof separation by GPR in a physical simulation experiment.

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Acknowledgments

We wish to gratefully acknowledge the collaborative funding support from the project supported by National Natural Science Foundation of China (51204160), the project supported by National Key Technology R&D Program (2012BAK04B06), the project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (SZBF2011-6-B35), and the project funded by State Key Laboratory of Coal Resources and Safe Mining (SKLCRSM11X03).

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Authors and Affiliations

  1. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, People’s Republic of China

    Jian-Lin Xie & Jia-Lin Xu

  2. School of Mining Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, People’s Republic of China

    Jia-Lin Xu

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  1. Jian-Lin Xie
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  2. Jia-Lin Xu
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Correspondence to Jia-Lin Xu.

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Xie, JL., Xu, JL. Ground penetrating radar-based experimental simulation and signal interpretation on roadway roof separation detection. Arab J Geosci 8, 1273–1280 (2015). https://doi.org/10.1007/s12517-014-1325-y

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  • DOI: https://doi.org/10.1007/s12517-014-1325-y

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