Features of CO2 fracturing deduced from acoustic emission and microscopy in laboratory experiments T Ishida, Y Chen, Z Bennour, H Yamashita, S Inui, Y Nagaya, M Naoi, ... Journal of Geophysical Research: Solid Earth 121 (11), 8080-8098, 2016 | 152 | 2016 |
Monitoring hydraulically-induced fractures in the laboratory using acoustic emissions and the fluorescent method M Naoi, Y Chen, K Nishihara, K Yamamoto, S Yano, S Watanabe, ... International Journal of Rock Mechanics and Mining Sciences 104, 53-63, 2018 | 43 | 2018 |
Frequency–Magnitude Distribution of −3.7 ≤ M W ≤ 1 Mining-Induced Earthquakes Around a Mining Front and b Value Invariance with … M Naoi, M Nakatani, S Horiuchi, Y Yabe, J Philipp, T Kgarume, G Morema, ... Pure and Applied Geophysics 171, 2665-2684, 2014 | 38 | 2014 |
Twenty thousand aftershocks of a very small (M 2) earthquake and their relation to the mainshock rupture and geological structures M Naoi, M Nakatani, Y Yabe, G Kwiatek, T Igarashi, K Plenkers Bulletin of the Seismological Society of America 101 (5), 2399-2407, 2011 | 38 | 2011 |
Observation of numerous aftershocks of an Mw 1.9 earthquake with an AE network installed in a deep gold mine in South Africa Y Yabe, J Philipp, M Nakatani, G Morema, M Naoi, H Kawakata, ... Earth, Planets and Space 61, e49-e52, 2009 | 38 | 2009 |
Steady activity of microfractures on geological faults loaded by mining stress M Naoi, M Nakatani, K Otsuki, Y Yabe, T Kgarume, O Murakami, ... Tectonophysics 649, 100-114, 2015 | 35 | 2015 |
Nucleation process of an M2 earthquake in a deep gold mine in South Africa inferred from on‐fault foreshock activity Y Yabe, M Nakatani, M Naoi, J Philipp, C Janssen, T Watanabe, T Katsura, ... Journal of Geophysical Research: Solid Earth 120 (8), 5574-5594, 2015 | 31 | 2015 |
Unexpectedly frequent occurrence of very small repeating earthquakes (−5.1 ≤ Mw ≤ −3.6) in a South African gold mine: Implications for monitoring … M Naoi, M Nakatani, T Igarashi, K Otsuki, Y Yabe, T Kgarume, ... Journal of Geophysical Research: Solid Earth 120 (12), 8478-8493, 2015 | 30 | 2015 |
Delineation of large localized damage structures forming ahead of an active mining front by using advanced acoustic emission mapping techniques H Moriya, M Naoi, M Nakatani, G van Aswegen, O Murakami, T Kgarume, ... International Journal of Rock Mechanics and Mining Sciences 79, 157-165, 2015 | 28 | 2015 |
Crack expansion and fracturing mode of hydraulic refracturing from acoustic emission monitoring in a small-scale field experiment T Ishida, W Fujito, H Yamashita, M Naoi, H Fuji, K Suzuki, H Matsui Rock Mechanics and Rock Engineering 52, 543-553, 2019 | 25 | 2019 |
Quasi‐static slip patch growth to 20 m on a geological fault inferred from acoustic emissions in a South African gold mine M Naoi, M Nakatani, T Kgarume, S Khambule, T Masakale, L Ribeiro, ... Journal of Geophysical Research: Solid Earth 120 (3), 1692-1707, 2015 | 24 | 2015 |
Moment tensor analysis of acoustic emissions induced by laboratory-based hydraulic fracturing in granite K Yamamoto, M Naoi, Y Chen, K Nishihara, S Yano, H Kawakata, T Akai, ... Geophysical Journal International 216 (3), 1507-1516, 2019 | 21 | 2019 |
Small slow‐strain steps and their forerunners observed in gold mine in South Africa M Naoi, H Ogasawara, J Takeuchi, A Yamamoto, N Shimoda, K Morishita, ... Geophysical Research Letters 33 (12), 2006 | 20 | 2006 |
Acoustic emission monitoring of hydraulic fracturing using carbon dioxide in a small-scale field experiment T Ishida, S Desaki, Y Kishimoto, M Naoi, H Fujii International Journal of Rock Mechanics and Mining Sciences 141, 104712, 2021 | 16 | 2021 |
Integration of underground mapping, petrology, and high-resolution microseismicity analysis to characterise weak geotechnical zones in deep South African gold mines SB Mngadi, RJ Durrheim, MSD Manzi, H Ogasawara, Y Yabe, H Yilmaz, ... International Journal of Rock Mechanics and Mining Sciences 114, 79-91, 2019 | 16 | 2019 |
Emergence and disappearance of very small repeating earthquakes on a geological fault in a gold mine in South Africa J Yamaguchi, M Naoi, M Nakatani, H Moriya, T Igarashi, O Murakami, ... Tectonophysics 747, 318-326, 2018 | 16 | 2018 |
Injection of supercritical carbon dioxide into granitic rock and its acoustic emission monitoring T Ishida, S Desaki, H Yamashita, S Inui, M Naoi, H Fujii, T Katayama ISRM EUROCK, ISRM-EUROCK-2017-060, 2017 | 16 | 2017 |
Establishment of SATREPS experimental sites in South African gold mines to monitor phenomena associated with earthquake nucleation and rupture RJ Durrheim, H Ogasawara, M Nakatani, Y Yabe, H Kawakata, M Naoi, ... Australian Centre for Geomechanics, 2012 | 14 | 2012 |
Tensile-dominant fractures observed in hydraulic fracturing laboratory experiment using eagle ford shale M Naoi, Y Chen, K Yamamoto, Y Morishige, K Imakita, N Tsutumi, ... Geophysical Journal International 222 (2), 769-780, 2020 | 13 | 2020 |
Preparatory acoustic emission activity of hydraulic fracture in granite with various viscous fluids revealed by deep learning technique R Tanaka, M Naoi, Y Chen, K Yamamoto, K Imakita, N Tsutsumi, ... Geophysical Journal International 226 (1), 493-510, 2021 | 11 | 2021 |