Sound signal analysis for warning and intensity evaluation of rockburst

SU Guoshao; LIU Xinjin; YAN Zhaofu; ZHANG Jie; LI Yanfang; YAN Liubin

doi:10.11883/bzycj-2017-0383

Volume 38 Issue 4

May 2018

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Article Navigation > Explosion And Shock Waves > 2018 > 38(4): 716-724

SU Guoshao, LIU Xinjin, YAN Zhaofu, ZHANG Jie, LI Yanfang, YAN Liubin. Sound signal analysis for warning and intensity evaluation of rockburst[J]. Explosion And Shock Waves, 2018, 38(4): 716-724. doi: 10.11883/bzycj-2017-0383

Citation:

SU Guoshao, LIU Xinjin, YAN Zhaofu, ZHANG Jie, LI Yanfang, YAN Liubin. Sound signal analysis for warning and intensity evaluation of rockburst[J]. Explosion And Shock Waves, 2018, 38(4): 716-724. doi: 10.11883/bzycj-2017-0383

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Sound signal analysis for warning and intensity evaluation of rockburst

doi: 10.11883/bzycj-2017-0383

Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, School of Civil Engineering and Architecture, Guangxi University, Nanning 530004, Guangxi, China

Received Date: 2017-10-24
Rev Recd Date: 2018-01-23
Publish Date: 2018-07-25

Abstract

Abstract

The rockburst process was reproduced using a true-triaixal rockburst test system in laboratory. The sound signal in the rockburst process was recorded and preprocessed, and the feature indexes of the sound signals in three typical failures in the rockburst process, including rock particles ejection, rock splitting, and rock plate ejection, were investigated. The results show that the feature indexes in the three typical failures such as the waveform, the spectrum, the sound print and the short-term energy exhibit significant differences from each other. Finally, an indicator called total energy of local sound (TELS) was proposed as applicable to assessing the rockburst intensity.
- rock engineering,
- rockburst warning,
- rockburst intensity,
- sound signal

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References(19)

References

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