Role of Acoustic Emission for Solving Rock Engineering Problems in Indonesian Underground Mining

Kramadibrata, S.; Simangunsong, Ganda Marihot; Matsui, Kikuo; Shimada, Hideki

doi:10.1007/s00603-010-0125-2

Cited by 31 publications

(14 citation statements)

References 13 publications

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“…Pioneering works of the AE studies on rocks were performed by Mogi [1] and Scholz [2]. Following these works, a series of achievements has been realized, e.g., the AE location algorithms, the temporal-spatial evolution behaviors of micro-cracks in rock bodies and the change of the AE parameters during rock fracture process [3][4][5][6][7][8][9]. In the study of rock mechanics, it is not sufficient only to know where the micro-cracks take place.…”

Section: Introductionmentioning

confidence: 99%

Moment tensor analysis of acoustic emission for cracking mechanisms in rock with a pre-cut circular hole under uniaxial compression

Liu

et al. 2015

Engineering Fracture Mechanics

108

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Section: Introductionmentioning

confidence: 99%

Moment tensor analysis of acoustic emission for cracking mechanisms in rock with a pre-cut circular hole under uniaxial compression

Liu

et al. 2015

Engineering Fracture Mechanics

108

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“…Pioneering works of the AE studies on rocks were performed by Mogi [1] and Scholz [2]. Following these works, a series of achievements has been realized, e.g., the AE location algorithms, the temporal-spatial evolution behaviors of micro-cracks in rock bodies and the change of the AE parameters [3][4][5][6][7][8][9]. In the study of the temporal-spatial evolution of the micro-cracks in rock, it is not sufficient only to know where the micro-cracks take place.…”

Section: Introductionmentioning

confidence: 99%

Cracking mechanisms in granite rocks subjected to uniaxial compression by moment tensor analysis of acoustic emission

Liu

et al. 2015

Theoretical and Applied Fracture Mechanics

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“…The AE continuous monitoring technology for coal-rock gas dynamic disasters is a noncontact geophysical prediction method, and is dynamic and continuous in time and space. 29,30 During the mining period of the F 15 -24080 working face in the Pingdingshan No. The AE continuous monitoring technology is an effective monitoring technology urgently needed for mine safety management.…”

Section: Introductionmentioning

confidence: 99%

Acoustic emission monitoring technology for coal and gas outburst

et al. 2019

Energy Science & Engineering

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In recent years, with the increase in mining depth and strength, coal‐rock gas dynamic disasters, such as coal and gas outburst, have shown an increasing trend. Acoustic emission (AE) technology has been viewed as a promising method that can effectively forecast coal and gas dynamic disasters. This paper first tests the AE characteristics of coal and rock samples during loading. Then, self‐developed AE continuous monitoring and early warning equipment is used to monitor and predict the coal and gas outburst dynamic disasters on the working face. And it is found that the coal samples primarily show ductile failure, and the AE exhibits the evolutionary characteristics of “rise‐peak‐fall”. The rock samples primarily exhibit brittle failure, and the AE evolution mode is almost no falling stage. Coal and gas outbursts occur after the stress peak. Before coal and gas outbursts occur, there is a clear increasing trend in the AE ahead of the gas concentration variation. When the gas‐bearing coal is damaged by the load, the coal body first breaks due to the stress, and the AE value increases. Then, due to the fracture of the coal body, the crack penetrates, gas rushes out, and the gas concentration increases. The research results can provide an advanced technical method for the monitoring and early warning of coal–rock gas dynamic disasters, and improve the prediction accuracy for dynamic disasters.

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Role of Acoustic Emission for Solving Rock Engineering Problems in Indonesian Underground Mining

Cited by 31 publications

References 13 publications

Moment tensor analysis of acoustic emission for cracking mechanisms in rock with a pre-cut circular hole under uniaxial compression

Moment tensor analysis of acoustic emission for cracking mechanisms in rock with a pre-cut circular hole under uniaxial compression

Cracking mechanisms in granite rocks subjected to uniaxial compression by moment tensor analysis of acoustic emission

Acoustic emission monitoring technology for coal and gas outburst

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