Abstract
Acoustic emission (AE) tests were performed on saturated karst limestone under uniaxial and triaxial compression. Mechanical properties, AE characteristics, and the energy mechanism of rock failure were analyzed. The peak AE activity under uniaxial compression occurred near the peak stress of the rock. Under triaxial compression, the AE activities of the rock samples first decreased then increased with increases in confining pressure. AE activity exhibited a certain lag, and the peak AE appeared when the stress had decreased significantly. Stratification of the average signal level occurred at low confining pressures. The critical confining pressure was between 15 and 20 MPa, and at this pressure a dramatic change occurred in the AE characteristics of the limestone. Total strain energy, dissipated energy, and elastic strain energy at peak stress showed good exponential relationships with confining pressure and peak rock strength.
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References
Amitrano D (2003) Brittle-ductile transition and associated seismicity: experimental and numerical studies and relationship with the b value. J Geophys Res 108(B1). https://doi.org/10.1029/2001JB000680
Brantut N, Schubnel A, Gueguen Y (2011) Damage and rupture dynamics at the brittle-ductile transition: the case of gypsum. J Geophys Res Solid Earth 116(B1). https://doi.org/10.1029/2010JB007675
Chen W, Konietzky H, Tan X, Fruhwirt T (2016) Pre-failure damage analysis for brittle rocks under triaxial compression. Comput Geotech 74:45–55. https://doi.org/10.1016/j.compgeo.2015.11.018
Farahat AM, Ohtsu M (1995) Evaluation of plastic damage in concrete by acoustic emission. J Mater Civ Eng 7(3):148–153. https://doi.org/10.1061/(ASCE)0899-1561(1995)7:3(148)
Guo JQ, Liu XL, Qiao CS (2014) Experimental study of mechanical properties and energy mechanism of karst limestone under natural and saturated states. Chin J Rock Mech Eng 33(2):296–308. 10.13722/j.cnki.jrme.2014.02.005
Huang D, Li YR (2013) Conversion of strain energy in triaxial unloading tests on marble. Int J Rock Mech Min Sci 66:160–168. https://doi.org/10.1016/j.ijrmms.2013.12.001
Huang D, Huang RQ, Zhang YX (2012) Experimental investigations on static loading rate effects on mechanical properties and energy mechanism of coarse crystal grain marble under uniaxial compression. Chin J Rock Mech Eng 31(2):245–255
Iturrioz I, Lacidogna G, Carpinteri A (2013) Experimental analysis and truss-like discrete element model simulation of concrete specimens under uniaxial compression. Eng Fract Mech 110:81–98. https://doi.org/10.1016/j.engfracmech.2013.07.011
Iturrioz I, Lacidogna G, Carpinteri A (2014) Acoustic emission detection in concrete specimens: experimental analysis and lattice model simulations. Int J Damage Mech 23(3):327–358. https://doi.org/10.1177/1056789513494232
Lee B, Rathnaweera TD (2016) Stress threshold identification of progressive fracturing in Bukit Timah granite under uniaxial and triaxial stress conditions. Geomech Geophys Geo-Energy Geo-Resources 2(4):301–330. https://doi.org/10.1007/s40948-016-0037-z
Li CS, Liao YK, Gu T (2007) Preliminary study on mechanical property tests for karst rock. Chin J Undergr Space Eng 3(7):1358–1362+1386
Li YR, Huang D, Li X (2014) Strain rate dependency of coarse crystal marble under uniaxial compression: strength, deformation and strain energy. Rock Mech Rock Eng 47(4):1153–1164. https://doi.org/10.1007/s00603-013-0472-x
Liu XX, Liang ZZ, Zhang YB et al (2015) Acoustic emission signal recognition of different rocks using wavelet transform and artificial neural network. Shock Vib 2015:846308. https://doi.org/10.1155/2015/846308
Lokajicek T, Prikryl R, Rudajev V (1996) Energy-frequency distribution of acoustic emission from loaded rock samples. Mater Sci Forum 210-213:541–548
Mikhalyuk AV, Zakharov VV (1997) Dissipation of dynamic-loading energy in quasi-elastic deformation processes in rocks. J Appl Mech Tech Phys 38(2):312–318. https://doi.org/10.1007/BF02467918
Prikryl R, Lokajícek T, Li C, Rudajev V (2003) Acoustic emission characteristics and failure of uniaxially stressed granitic rocks: the effect of rock fabric. Rock Mech Rock Eng 36(4):255–270. https://doi.org/10.1007/s00603-003-0051-7
Su CD, Zhai XX, Li BF (2011) Experimental study of the characteristics of acoustic emission for sandstone specimens under uniaxial and triaxial compression tests. J Min Saf Eng 28(2):225–230
Tang Q, Li YN (2014) Influence of confining stress on energy evolution of sandstone under triaxial compression. Electron J Geotech Eng 19N:3159–3165
Tian Y, Yu RG (2014) Energy analysis of limestone during triaxial compression under different confining pressures. Rock Soil Mech 35(1):118–122. 10.16285/j.rsm.2014.01.019
Tuncay E, Obara Y (2012) Comparison of stresses obtained from acoustic emission and compact conical-ended borehole overcoring techniques and an evaluation of the Kaiser effect level. Bull Eng Geol Environ 71(2):367–377. https://doi.org/10.1007/s10064-011-0362-y
Vervoort A, Govaerts A (2006) Kaiser effect in tri-axial tests of limestone samples. Proc Monogr Eng Water Earth Science 2006:143–149. https://doi.org/10.1201/9781439833650.ch19
Wang DC, Wang K, Zhao NN (2014) Experimental study on time series characteristics of rock acoustic emission in complete stress-strain process under uniaxial compression. Adv Mater Res 243:2239–2244. https://doi.org/10.4028/www.scientific.net/AMR.243-249.223
Wu XZ, Liu XX, Liang Z et al (2012) Experimental study of fractal dimension of AE serials of different rocks under uniaxial compression. Rock Soil Mech 33(12):3561–3569. 10.16285/j.rsm.2012.12.015
Xiao YQ, Wan YP, Liu BX (2013) Research on landscape limestone damage and deformation under uniaxial compression. Appl Mech Mater 423:914–919. https://doi.org/10.4028/www.scientific.net/AMM.423-426.914
Xie HP, Ju Y, Li LY (2005) Criteria for strength and structural failure of rocks based on energy dissipation and energy release principles. Chin J Rock Mech Eng 24(17):3003–3010
Xie HP, Ju Y, Li LY, Peng RD (2008) Energy mechanism of deformation and failure of rock masses. Chin J Rock Mech Eng 27(9):1729–1740
Yang HQ, Zhou XP (2010) Experimental investigation of damage evolution of Huanglong limestone under uniaxial compression. Chin Civil Eng J 43(5):117–123. 10.15951/j.tmgcxb.2010.05.013
Yang YJ, Wang DC, Guo MF, Li B (2014) Study of rock damage characteristics based on acoustic emission tests under triaxial compression. Chin J Rock Mech Eng 33(1):98–104. 10.13722/j.cnki.jrme.2014.01.008
You MQ, Hua AZ (2002) Energy analysis of failure process of rock specimens. Chin J Rock Mech Eng 21(6):778–781
Zhang ZZ, Gao F (2012) Research on nonlinear characteristics of rock energy evolution under uniaxial compression. Chin J Rock Mech Eng 31(6):1198–1207
Zhang LM, Gao S, Wang ZQ (2013) Experimental study of energy evolution of limestone underloading and unloading conditions. Rock Soil Mech 34(11):3071–3076. 10.16285/j.rsm.2013.11.004
Zhou XP, Liu QY (2010) Research on chaotic characteristics of rock acoustic emission. Rock Soil Mech 31(3):815–819. 10.16285/j.rsm.2010.03.056
Acknowledgements
This work was financially supported by the State Key Development Program for Basic Research of China (grant no. 2013CB036003) and the National Natural Science Foundation of China (grant no. 51778215). The authors thank the reviewers of this paper for their constructive comments and suggestions for its improvement. All the authors declare that there is no conflict of interest regarding the publication of this paper.
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Wang, Q., Chen, J., Guo, J. et al. Acoustic emission characteristics and energy mechanism in karst limestone failure under uniaxial and triaxial compression. Bull Eng Geol Environ 78, 1427–1442 (2019). https://doi.org/10.1007/s10064-017-1189-y
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DOI: https://doi.org/10.1007/s10064-017-1189-y