Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms

Moriya, HNaoi, MNakatani, MMurakami, OKgarume, Thabang EWard, AKDurrheim, RPhilipp, JYabe, YKawakata, HOgasawara, H2013-05-212013-05-212012-11Moriya, H, Naoi, M, Nakatani, M, Murakami, O, Kgarume, T, Ward, AK, Durrheim, R, Philipp, J, Yabe, Y, Kawakata, H and Ogasawara, H. 2012. Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms. In: Progress in Acoustic Emission XVI, The Japanese Society for NDI, Okinawa Prefecture Municipal Center, Naha City, 27-30 November 2012http://hdl.handle.net/10204/6739Progress in Acoustic Emission XVI, The Japanese Society for NDI, Okinawa Prefecture Municipal Center, Naha City, 27-30 November 2012The ability to predict rock failure is desirable for the prevention of disasters in mines. The acoustic emission (AE) method is a well-known tool for monitoring fracture growth in rock masses that is used to help ensure safety during excavations. In mines, AE can indicate the location of fractures and damage zones. If AE could be used to detect the initiation and extension of fractures in rock masses and determine their precise source locations, that information would be helpful in forecasting the locations of rock failure. A study of AE in the Ezulwini gold mine in South Africa has been conducted under the Japan–South Africa collaborative project titled “Observational studies to mitigate seismic risks in mines”, in which a large number of events have been detected around the mining front. In this paper, we report on the determination of the source location of AE by the joint hypocenter method and multiplet analysis, and we delineate structures in the AE cloud.enRock failure predictionMine disaster preventionEzulwini gold mineAcoustic emission methodDetection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveformsArticleMoriya, H., Naoi, M., Nakatani, M., Murakami, O., Kgarume, T. E., Ward, A., ... Ogasawara, H. (2012). Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms. http://hdl.handle.net/10204/6739Moriya, H, M Naoi, M Nakatani, O Murakami, Thabang E Kgarume, AK Ward, R Durrheim, et al "Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms." (2012) http://hdl.handle.net/10204/6739Moriya H, Naoi M, Nakatani M, Murakami O, Kgarume TE, Ward A, et al. Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms. 2012; http://hdl.handle.net/10204/6739.TY - Article AU - Moriya, H AU - Naoi, M AU - Nakatani, M AU - Murakami, O AU - Kgarume, Thabang E AU - Ward, AK AU - Durrheim, R AU - Philipp, J AU - Yabe, Y AU - Kawakata, H AU - Ogasawara, H AB - The ability to predict rock failure is desirable for the prevention of disasters in mines. The acoustic emission (AE) method is a well-known tool for monitoring fracture growth in rock masses that is used to help ensure safety during excavations. In mines, AE can indicate the location of fractures and damage zones. If AE could be used to detect the initiation and extension of fractures in rock masses and determine their precise source locations, that information would be helpful in forecasting the locations of rock failure. A study of AE in the Ezulwini gold mine in South Africa has been conducted under the Japan–South Africa collaborative project titled “Observational studies to mitigate seismic risks in mines”, in which a large number of events have been detected around the mining front. In this paper, we report on the determination of the source location of AE by the joint hypocenter method and multiplet analysis, and we delineate structures in the AE cloud. DA - 2012-11 DB - ResearchSpace DP - CSIR KW - Rock failure prediction KW - Mine disaster prevention KW - Ezulwini gold mine KW - Acoustic emission method LK - https://researchspace.csir.co.za PY - 2012 T1 - Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms TI - Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms UR - http://hdl.handle.net/10204/6739 ER -