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Keywords: acoustic emission
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Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-039
... pollution are difficult to control because the process is invisible. The reactor in UCG is unstable and expands continuously due to fracturing activity caused by coal combustion. It is, therefore, considered that acoustic emission (AE) is an effective tool to monitor the fracturing activities and visualize...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-234
... (EMI) from any host structure over which they are bonded. Further, these sensors are capable of acquiring acoustic emissions (AE) as well. In the present study, an attempt has been executed to use thin piezo based transducers for acquiring EMI signatures and AE from a sand-stone specimen under...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-274
... important to monitor the damage of geotechnical structures in real time and to estimate the potential of the structural failure. Acoustic emission (AE) and microseismic(MS) activities are low-energy seismic events associated with a sudden inelastic deformation of rock such as the movement of existing...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-117
..., location and intensity of potential rock fracture. Fracture development in stressed rock has been observed extensively in the laboratory by a number of methods. Nowadays, as an effective approach, acoustic emission (AE) techniques are broadly applied to rock to obtain the information on crack initiation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-038
... Abstract This paper discusses the results of acoustic emission (AE) monitoring of two common rock mechanics testing methods: indirect tension strength (Brazilian) and uniaxial compression (UC) tests. The tests were carried out on very strong, isotropic gabbro rock specimens from North Africa...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-046
... evaluation of the dam stability in terms of the shear strength of the concrete lift joint or a discontinuity in the rock mass. The shear strength of these two types of joints is analyzed in this paper. Then the applicability of acoustic emission (AE) in monitoring the shear behavior of joints is discussed...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-041
... & mining acoustic emission Kaiser effect in-situ stress direction cosine ISRM International Symposium 2008 5th Asian Rock Mechanics Symposium (ARMS5), 24-26 November 2008 Tehran, Iran 379 APPLICATION OF AE FOR DETERMINING IN SITU STRESS AT UG MINE S. KRAMADIBRATA1, R.K. WATTIMENA1, I. KAMIL1, M.A...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-022
...Evolution of acoustic emission in rock failure under different confining pressure 1 I· Z. H. CHEN'·2, M. R. YEUNG2, L. G THAM2, , P.K.K. LEe, Y. TSUI2 . pnstltuteof Rock Mechanics and Fractal, China University of Mining and Technology (Beijing), R.Chlna 2. Department of Civil Engineering...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-009
...Factors influencing the origin of the acoustic emission in rock samples in uniaxial stress conditions P. KONECNY, JR Institute of Geonics ASCR, Studentska 1768, 708 00 Ostrava - Poruba, Czech Republic ~~S~RA~T: ~he acoustic emission as addition~1 param.cler measured. duri~g ~he slr~s~-str...

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