ACOUSTIC EMISSION AND DAMAGE CHARACTERISTICS OF ANTHRACITE UNDER DIFFERENT CONDITIONS
Keywords:
anthracite, influencing factors, acoustic emission, damage characteristics
Abstract
Acoustic emission (AE) can be used to observe the process of coal fracture propagation. Based on a press and acoustic-emission platform, the damage and acoustic-emission characteristics of anthracite with different loading rates, water amounts and sizes were studied. The results show that there is less acoustic emission in the initial compression stage of coal; acoustic emission is more active in the transition from elastic deformation to plastic deformation, which is manifested in the following aspects: the faster the loading rate, the higher is the number of acoustic-emission events; the peak count of acoustic emissions of a saturated-coal sample is significantly lower than that of a natural-coal sample. Coal samples and large coal samples emit even more sounds. Based on the normalization of acoustic-emission counts, the relationship between damage variables and stress-strain is studied, and it is characterized by an initial slow increase, followed by a rapid increase; however, different factors have a great influence on the damage-characteristic curve. The research results have a certain guiding significance for the coal and rock disaster prediction.
References
1 X. T. Feng, R. P. Young, J. M. Reyes-Montes, ISRM Suggested Method for In Situ Acoustic Emission Monitoring of the Fracturing Process in Rock Masses, Rock Mechanics and Rock Engineering, 52 (2019), 1395–1414
2 Q. Guo, J. Pan, M. Cai, Investigating the Effect of Rock Bridge on the Stability of Locked Section Slopes by the Direct Shear Test and Acoustic Emission Technique, Sensors, 20 (2020) 3
3 T. Shiotani, M. Ohtsu, K. Ikeda, Detection and evaluation of AE waves due to rock deformation, Constr. Build. Mater., 15 (2001) 5–6, 235–246, doi:10.1016/S0950-0618(00)00073-8
4 X. G. Yin, S. L. Li, H. Tang, J. Pei, Study on quiet period and its fractal characteristics of rock failure acoustic emission, Chin. J. Rock Mech. Eng., 28 (2009) 3, 383–3
5 K. Kusunose, X. Lei, O. Nishizawa, T. Satoh, Effect of grain size on fractal structure of acoustic emission hypocenter distribution in granitic rock, Phys. Earth Planet In., 67 (1991) 1–2, 194–199, doi:10.1016/0031-9201(91)90070-X
6 S. C. Li, X. J. Xu, Z. Y. Liu, W. M. Yang, B. Liu, X. Zhang, Z. C. Wang, L. C. Nie, J. L. Li, L. Xu, Electrical resistivity and acoustic emission response characteristics and damage evolution of sandstone during whole process of uniaxial compression, Chin. J. Rock Mech. Eng., 33 (2014) 1, 14–23, doi:10.3969/j.issn.1000-6915.2014.01.002
7 G. Kwiatek, K. Plenkers, P. Martínez-Garzón, M. Leonhardt, A. Zang, G. Dresen, New insights into fracture process through in-situ acoustic emission monitoring during fatigue hydraulic fracture experiment in Äspö Hard Rock Laboratory, Proc. Eng., 191 (2017), 618–622, doi:10.1016/j.proeng.2017.05.225
8 T. Ishida, T. Kanagawa, Y. Kanaori, Source distribution of acoustic emissions during an in-situ direct shear test: Implications for an analog model of seismogenic faulting in an inhomogeneous rock mass, Eng. Geol., 110 (2010) 3–4, 66–76, doi:10.1016/j.enggeo.2009. 11.003
9 G. Manthei, Characterization of acoustic emission sources in a rock salt specimen under triaxial compression, B. Seismol. Soc. Am., 95 (2005) 5, 1674–1700, doi:10.1785/0120040076
10 A. Chmel, I. Shcherbakov, A comparative acoustic emission study of compression and impact fracture in granite, Int. J. Rock Mech. Min. Sci., 64 (2013), 56–59
11 H. Alkan, Y. Cinar, G. Pusch, Rock salt dilatancy boundary from combined acoustic emission and triaxial compression tests, Int. J. Rock Mech. Min. Sci., 44 (2007) 1, 108–119
12 L .G. Tham, H. Liu, C. A. Tang, P. K. K. Lee, Y. Tsui, On tension failure of 2-D rock specimens and associated acoustic emission, Rock Mech. Rock Eng., 38 (2005) 1, 1–19, doi:10.1007/s00603-¬004-0031-6
13 P. Ganne, A. Vervoort, M. Wevers, Quantification of pre-peak brittle damage: correlation between acoustic emission and observed micro-fracturing, Int. J. Rock Mech. Min. Sci., 44 (2007) 5, 720–729, doi:10.1016/j.ijrmms.2006.11.003
14 S. Q. Yang, H. W. Jing, Strength failure and crack coalescence behavior of brittle sandstone samples containing a single fissure under uniaxial compression, Int. J. Fracture, 168 (2011) 2, 227–250, doi:10.1007/s10704-010-9576-4
15 Y. Filimonov, A. Lavrov, V. Shkuratnik, Acoustic emission in rock salt: effect of loading rate, Strain, 38 (2002) 4, 157–159, doi:10.1111/j.1475-1305.2002.00022.x
16 B. Liu, J. Huang, Z. Wang, L. Liu, Study on damage evolution and acoustic emission character of coal-rock under uniaxial compression, Chin. J. Rock Mech. Eng., 28 (2009) S1, 3234–3238
17 D. G. Aggelis, D. V. Soulioti, N. Sapouridis, et al., Acoustic emission characterization of the fracture process in fibre reinforced concrete, Construction & Building Materials, 25 (2011) 11, 4126–4131
18 M. Duan, C. Jiang, Q. Gan, Experimental investigation on the permeability, acoustic emission and energy dissipation of coal under tiered cyclic unloading, Journal of Natural Gas Science and Engineering, (2020)
19 Q. Hu, L. Dong, Acoustic Emission Source Location and Experimental Verification for Two-Dimensional Irregular Complex Structure, IEEE Sensors Journal, 20 (2020) 5, 2679–2691
20 F. Ren, C. Zhu, M. He, Moment Tensor Analysis of Acoustic Emissions for Cracking Mechanisms During Schist Strain Burst, Rock Mechanics and Rock Engineering, 53 (2020) 1, 153–170
21 L. M. Kachanov, Introduction to continuum damage mechanics, Springer Science & Business Media, 10 (2013)
2 Q. Guo, J. Pan, M. Cai, Investigating the Effect of Rock Bridge on the Stability of Locked Section Slopes by the Direct Shear Test and Acoustic Emission Technique, Sensors, 20 (2020) 3
3 T. Shiotani, M. Ohtsu, K. Ikeda, Detection and evaluation of AE waves due to rock deformation, Constr. Build. Mater., 15 (2001) 5–6, 235–246, doi:10.1016/S0950-0618(00)00073-8
4 X. G. Yin, S. L. Li, H. Tang, J. Pei, Study on quiet period and its fractal characteristics of rock failure acoustic emission, Chin. J. Rock Mech. Eng., 28 (2009) 3, 383–3
5 K. Kusunose, X. Lei, O. Nishizawa, T. Satoh, Effect of grain size on fractal structure of acoustic emission hypocenter distribution in granitic rock, Phys. Earth Planet In., 67 (1991) 1–2, 194–199, doi:10.1016/0031-9201(91)90070-X
6 S. C. Li, X. J. Xu, Z. Y. Liu, W. M. Yang, B. Liu, X. Zhang, Z. C. Wang, L. C. Nie, J. L. Li, L. Xu, Electrical resistivity and acoustic emission response characteristics and damage evolution of sandstone during whole process of uniaxial compression, Chin. J. Rock Mech. Eng., 33 (2014) 1, 14–23, doi:10.3969/j.issn.1000-6915.2014.01.002
7 G. Kwiatek, K. Plenkers, P. Martínez-Garzón, M. Leonhardt, A. Zang, G. Dresen, New insights into fracture process through in-situ acoustic emission monitoring during fatigue hydraulic fracture experiment in Äspö Hard Rock Laboratory, Proc. Eng., 191 (2017), 618–622, doi:10.1016/j.proeng.2017.05.225
8 T. Ishida, T. Kanagawa, Y. Kanaori, Source distribution of acoustic emissions during an in-situ direct shear test: Implications for an analog model of seismogenic faulting in an inhomogeneous rock mass, Eng. Geol., 110 (2010) 3–4, 66–76, doi:10.1016/j.enggeo.2009. 11.003
9 G. Manthei, Characterization of acoustic emission sources in a rock salt specimen under triaxial compression, B. Seismol. Soc. Am., 95 (2005) 5, 1674–1700, doi:10.1785/0120040076
10 A. Chmel, I. Shcherbakov, A comparative acoustic emission study of compression and impact fracture in granite, Int. J. Rock Mech. Min. Sci., 64 (2013), 56–59
11 H. Alkan, Y. Cinar, G. Pusch, Rock salt dilatancy boundary from combined acoustic emission and triaxial compression tests, Int. J. Rock Mech. Min. Sci., 44 (2007) 1, 108–119
12 L .G. Tham, H. Liu, C. A. Tang, P. K. K. Lee, Y. Tsui, On tension failure of 2-D rock specimens and associated acoustic emission, Rock Mech. Rock Eng., 38 (2005) 1, 1–19, doi:10.1007/s00603-¬004-0031-6
13 P. Ganne, A. Vervoort, M. Wevers, Quantification of pre-peak brittle damage: correlation between acoustic emission and observed micro-fracturing, Int. J. Rock Mech. Min. Sci., 44 (2007) 5, 720–729, doi:10.1016/j.ijrmms.2006.11.003
14 S. Q. Yang, H. W. Jing, Strength failure and crack coalescence behavior of brittle sandstone samples containing a single fissure under uniaxial compression, Int. J. Fracture, 168 (2011) 2, 227–250, doi:10.1007/s10704-010-9576-4
15 Y. Filimonov, A. Lavrov, V. Shkuratnik, Acoustic emission in rock salt: effect of loading rate, Strain, 38 (2002) 4, 157–159, doi:10.1111/j.1475-1305.2002.00022.x
16 B. Liu, J. Huang, Z. Wang, L. Liu, Study on damage evolution and acoustic emission character of coal-rock under uniaxial compression, Chin. J. Rock Mech. Eng., 28 (2009) S1, 3234–3238
17 D. G. Aggelis, D. V. Soulioti, N. Sapouridis, et al., Acoustic emission characterization of the fracture process in fibre reinforced concrete, Construction & Building Materials, 25 (2011) 11, 4126–4131
18 M. Duan, C. Jiang, Q. Gan, Experimental investigation on the permeability, acoustic emission and energy dissipation of coal under tiered cyclic unloading, Journal of Natural Gas Science and Engineering, (2020)
19 Q. Hu, L. Dong, Acoustic Emission Source Location and Experimental Verification for Two-Dimensional Irregular Complex Structure, IEEE Sensors Journal, 20 (2020) 5, 2679–2691
20 F. Ren, C. Zhu, M. He, Moment Tensor Analysis of Acoustic Emissions for Cracking Mechanisms During Schist Strain Burst, Rock Mechanics and Rock Engineering, 53 (2020) 1, 153–170
21 L. M. Kachanov, Introduction to continuum damage mechanics, Springer Science & Business Media, 10 (2013)
Published
2021-04-15
How to Cite
1.
Zheng J, Jin X, Tian K, Zhou Y. ACOUSTIC EMISSION AND DAMAGE CHARACTERISTICS OF ANTHRACITE UNDER DIFFERENT CONDITIONS. MatTech [Internet]. 2021Apr.15 [cited 2026Jun.13];55(2):213-8. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/121
Section
Articles
