Application of Radar Velocity Tomography for Detecting Coal and Gas Outburst in Deep Coal Mining

Abstract:

Among the main geological factors to cause the disasters of mine safety production in deep mining, coal and gas outburst is the first major calamity that restricts colliery exploiting. Aiming at this problem, current geophysical methods were reviewed and compared, and the velocity tomography technology using ground penetrating radar was studied. Two models with ground stress anomaly and collapse columns were built and inverted using LSQR algorithm, respectively. The results show that the proposed method gives very consistent results with respect to the models information, and uncertain features of inverted models were identified accurately. This verified radar velocity tomography is effective and practical.

• Periodical: Applied Mechanics and Materials (Volumes 513-517)
• Pages: 3659-3662
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.513-517.3659
• Online since: February 2014
• Authors: Cui Du*, Xin Jun Xu, Xing Yu Li
• Keywords: Coal Outburst, Deep Mining, Gas Outburst, Radar, Velocity Tomography

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