| Cite this article as: |
Yu-ye Tan, Elmo Davide, Yu-cheng Zhou, Wei-dong Song, and Xiang Meng, Long-term mechanical behavior and characteristics of cemented tailings backfill through impact loading, Int. J. Miner. Metall. Mater., 27(2020), No. 2, pp. 140-151. https://doi.org/10.1007/s12613-019-1878-6
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Cemented tailings backfill (CTB) structures are important components of underground mine stopes. It is important to investigate the characteristics and dynamic behavior of CTB materials because they are susceptible to disturbance by dynamic loading, such as excavation and blasting. In this study, the authors present the results of a series of Split–Hopkinson pressure bar (SHPB) single and cyclic impact loading tests on CTB specimens to investigate the long-term dynamic mechanical properties of CTB. The stress–strain relationship, dynamic strength, and dynamic failure characteristics of CTB specimens are analyzed and discussed to provide valuable conclusions that will improve our knowledge of CTB long-term mechanical behavior and characteristics. For instance, the dynamic peak stress under cyclic impact loading is approximately twice that under single impact loading, and the CTB specimens are less prone to fracture when cyclically loaded. These findings and conclusions can provide a new set of references for the stability analysis of CTB materials and help guide mine designers in reducing the amount of binding agents and the associated mining cost.
| [1] |
M.C. He, H.P. Xie, S.P. Peng, and Y.D. Jiang, Study on rock mechanics in deep mining engineering, Chin. J. Rock Mech. Eng., 24(2005), No. 16, p. 2803.
|
| [2] |
Q. Wang and F.Y. Ren, Mining Science, Metallurgical Industry Press, Beijing, 2011, p. 327.
|
| [3] |
F.P. Hassani, A. Mortazavi, and M. Shabani, An investigation of mechanisms involved in backfill-rock mass behavior in narrow vein mining, J. South Afr. Inst. Min. Metall., 108(2008), No. 8, p. 463.
|
| [4] |
R. Rankine, M. Pacheco, and N. Sivakugan, Underground mining with backfills, Soils Rocks, 30(2007), No. 2, p. 93.
|
| [5] |
X.X. Miao, J.X. Zhang, and G.L. Guo, Study on waste backfilling method and technology in fully mechanized coal mining, J. Chin. Coal Soc., 2010, 35(1): 1.
|
| [6] |
M. Benzaazoua, B. Bussière, I. Demers, M. Aubertin, E. Fried, and A. Blier, Integrated mine tailings management by combining environmental desulphurization and cemented paste backfill, Application to mine Doyon, Quebec, Canada., Miner. Eng., 21(2008), No. 4, p. 330. doi: 10.1016/j.mineng.2007.11.012
|
| [7] |
L. Yang, J.P. Qiu, H.Q. Jiang, S.Q. Hu, H. Li, and S.B. Li, Use of cemented super-fine unclassified tailings backfill for control of subsidence, Minerals, 7(2017), p. 216. doi: 10.3390/min7110216
|
| [8] |
J.X. Zhang, B.Y. Li, N. Zhou, and Q. Zhang, Application of solid backfilling to reduce hard-roof caving and longwall coal face burst potential, Int. J. Rock Mech. Min. Sci., 88(2016), p. 197. doi: 10.1016/j.ijrmms.2016.07.025
|
| [9] |
D.Q. Deng, L. Liu, Z.L. Yao, K.I Song, and D.Z. Lao, A practice of ultra-fine tailings disposal as filling material in a gold mine, J. Environ. Manage., 196(2017), p. 100. doi: 10.1016/j.jenvman.2017.02.056
|
| [10] |
X. Ke, H. Hou, M. Zhou, Y. Wang, and X. Zhou, Effect of particle gradation on properties of fresh and hardened cemented paste backfill, Constr. Build. Mater., 96(2015), p. 378. doi: 10.1016/j.conbuildmat.2015.08.057
|
| [11] |
A. Khoshand and M. Fall, Geotechnical characterization of peat-based landfill cover materials, J. Rock Mech. Geotech. Eng., 8(2016), No. 5, p. 596. doi: 10.1016/j.jrmge.2016.05.007
|
| [12] |
C. Liang and M. Fall, Mechanical and thermal properties of cemented tailings materials at early ages: Influence of initial temperature, curing stress and drainage conditions, Constr. Build. Mater., 125(2016), p. 553.
|
| [13] |
L. Dong, Q. Gao, S.Q. Nan, and J.Q. Du, Performance and hydration mechanism of new super fine cemented whole-tailings backfilling materials, J. Cent. South Univ., 44(2013), No. 4, p. 1571.
|
| [14] |
J.H. Sun, Y.M. Dou, J. Zhou, and B. Li, Experimental study on the affect to compressive property of concrete caused by strain rate, China Concr. Cem. Prod., 5(2011), p. 1.
|
| [15] |
Z.X. Liu and X.B. Li, Research on stability of high-level backfill in blasting, Min. Metall. Eng., 24(2004), No. 3, p. 21.
|
| [16] |
N. Li, K.P. Zhou, D. Pan, and H.L. Zhu, Study on intensity response of rubble backfill to dynamical loading of medium-length hole blasting, Min. Metall. Eng., 31(2011), No. 4, p. 9.
|
| [17] |
Q.L. Zhang, W. Yang, S. Yang, and X.M. Wang, Test research on stability of high-density total tailing cemented backfilling under dynamical loading, Chin. Saf. Sci. J., 25(2015), No. 3, p. 78.
|
| [18] |
G.Y. Zhao, H. Wu, Y. Chen, Z.W. Xu, and Z.Y. Li, Experimental study on load-bearing mechanism and compaction characteristics of mine filling materials, J. Chin. Univ. Min. Technol., 6(2017), p. 1251.
|
| [19] |
W.B. Xu, X.C. Tian, and P.W. Cao, Assessment of hydration process and mechanical properties of cemented paste backfill by electrical resistivity measurement, Nondestr. Test. Eval., 33(2018), No. 2, p. 198. doi: 10.1080/10589759.2017.1353983
|
| [20] |
W.B. Xu, P.W. Cao, and M.M. Tian, Strength development and microstructure evolution of cemented tailings backfill containing different binder types and contents, Minerals, 8(2018), No. 4, p. 167. doi: 10.3390/min8040167
|
| [21] |
S. Cao, W.D. Song, and E. Yilmaz, Influence of structural factors on uniaxial compressive strength of cemented tailings backfill, Constr. Build. Mater., 174(2018), p. 190. doi: 10.1016/j.conbuildmat.2018.04.126
|
| [22] |
S. Cao and W.D. Song, Effect of filling interval time on the mechanical strength and ultrasonic properties of cemented coarse tailing backfill, Int. J. Miner. Process., 166(2017), p. 62. doi: 10.1016/j.minpro.2017.07.005
|
| [23] |
E. Yilmaz, Investigating the Hydro-geotechnical and Microstructural Properties of Cemented Paste Backfills Using the Versatile CUAPS Apparatus [Dissertation], Université du Québec en Abitibi-Témiscamingue UQAT, Rouyn-Noranda, QC, 2010, p. 1.
|
| [24] |
R.J. Chen, H.W. Liu, and R. Zeng, SHPB dynamical experiment on silica fume concrete, Adv. Mater. Res., 631-632(2013), p. 771. doi: 10.4028/www.scientific.net/AMR.631-632.771
|
| [25] |
J. Dai, Dynamical Behaviors and Blasting Theory of Rock, Metallurgical Industry Press, Beijing, 2002, p. 60.
|
| [26] |
C.E. Fairhurst and J.A. Hudson, Draft ISRM suggested method for the complete stress‒strain curve for intact rock in uniaxial compression, Int. J. Rock Mech. Min. Sci., 36(1999), No. 3, p. 279. doi: 10.1016/S0148-9062(99)00006-6
|
| [27] |
J.Y. Xu, J.S. Fan, and X.C. Lv, Dynamical Mechanical Properties of Rock with the Confining Pressure, Northwestern Polytechnical University Press, Xi’an, 2012, p. 56.
|
| [28] |
S.C. Peng, C.C. Chen, J. Xu, H.L. Zhang, and Y. Tang, W. Nie, K. Zhao, Loading rate dependency of rock stress-strain curve based on Brazil splitting test, Chin. J. Rock Mech. Eng., 37(2018), No. Supp.1, p. 3247.
|
| [29] |
F.Q. Gong, X.B. Li, Q.H. Rao, and X.L. Liu, Reference method for determining sample size in SHPB tests of rock materials, J. Vib. Shock, 32(2013), No. 17, p. 24.
|
| [30] |
Z. Pan, J.G. Sanjayan, and B.V. Rangan, Fracture properties of geopolymer paste and concrete, Mag. Concr. Res., 63(2011), No. 10, p. 763. doi: 10.1680/macr.2011.63.10.763
|
| [31] |
M. Mastali and A. Dalvand, The impact resistance and mechanical properties of self-compacting concrete reinforced with recycled CFRP pieces, Compos. Part B, 92(2016), p. 360. doi: 10.1016/j.compositesb.2016.01.046
|
| [32] |
J.Z. Liu, J.Y. Xu, and X.C. Lu, Experimental study on dynamical mechanical properties of amphibolies under impact compressive loading, Chin. J. Rock Mech. Eng., 28(2009), No. 10, p. 2113.
|
| [33] |
S. Ouellet, B. Bussière, M. Aubertin, and M. Benzaazoua, Microstructural evolution of cemented paste backfill: Mercury intrusion porosimetry test results, Cem. Concr. Res., 37(2007), No. 12, p. 1654. doi: 10.1016/j.cemconres.2007.08.016
|
| [34] |
S.S. Wang, M.H. Zhang, and S.T. Quest, Effect of sample size on static strength and dynamical increase factor of high-strength concrete from SHPB test, J. Test. Eval., 39(2011), No. 5, p. 10.
|
| [35] |
X.B. Li, F.Q. Gong, K. Gao, J. Zhao, and S.B Yin, Test study of impact failure of rock subjected to one-dimensional coupled static and dynamic loads, Chin. J. Rock Mech. Eng., 29(2010), No. 2, p. 251.
|
| [36] |
Y.Y. Tan, J. Wang, W.D. Song, L.H. Xu, and S. Cao, Experimental study on mechanical properties of cemented tailings backfill under cycle dynamic loading test, J. Min. Saf. Eng., 1(2019), No. 36, p. 184.
|
| [37] |
P. Li, F.H. Ren, M.F. Cai, Q.F. Guo, H.F. Wang, and K. Liu, Investigating the mechanical and acoustic emission characteristics of brittle failure around a circular opening under uniaxial loading, Int. J. Miner. Metall. Mater., 26(2019), No. 10, p. 1217. doi: 10.1007/s12613-019-1887-5
|
| [38] |
H.Z. Jiao, S.F. Wang, A.X. Wu, H.M. Shen, and J.D. Wang, Cementitious property of NaAlO2-activated Ge slag as cement supplement, Int. J. Miner. Metall. Mater., 26(2019), No. 12, p. 1594. doi: 10.1007/s12613-019-1901-y
|
| [39] |
Y.Y. Tan, X. Yu, W.D. Song, H.P. Wang, and S. Cao, Experimental study on combined pressure-bearing mechanism of filling body and surrounding rock, J. Min. Saf. Eng., 5(2018), No. 35, p. 1071.
|
| [40] |
Y.Y. Tan, X. Yu, D. Elmo, L.H. Xu, and W.D. Song, Experimental study on dynamic mechanical property of cemented tailings backfill under SHPB impact loading, Int. J. Miner. Metall. Mater., 26(2019), No. 4, p. 404. doi: 10.1007/s12613-019-1749-1
|
| [41] |
W.B. Xu, Y. Cao, and B.G. Liu, Strength efficiency evaluation of cemented tailings backfill with different stratified structures, Eng. Struct., 180(2019), p. 18. doi: 10.1016/j.engstruct.2018.11.030
|
| [42] |
J.X. Fu, C.F. Du, and W.D. Song, Strength sensitivity and failure mechanism of full tailings cemented backfills, J. Univ. Sci. Technol. Beijing, 36(2014), No. 9, p. 1149.
|
| [43] |
D.Q. Deng, Y.L. Yang, and Z.L.Yao, Research on constitutive equation of damage evolution of backfill based on the full tensile and compressive process, J. Min. Saf. Eng., 23(2007), No. 4, p. 485.
|
| [44] |
Y.F. Li, J.M. Zhang, F. Deng, and S.W. Bai, Experimental study on strength characteristics of tailings cement backfilling at deep-seated mined-out eare, Rock Soil Mech., 26(2005), No. 6, p. 865.
|
| [45] |
C. Liu, B. Han, W. Sun, J.X. Wu, S. Yao, and H.Y. Hu, Experimental study of strength of backfilling of cemented rock debris and its application under low temperature condition, Chin. J. Rock Mech. Eng., 34(2015), No. 1, p. 139.
|
| [46] |
X. Zhao, A. Fourie, and C.C. Qi, An analytical solution for evaluating the safety of an exposed face in a paste backfill stope incorporating the arching phenomenon, Int. J. Miner. Metall. Mater., 26(2019), No. 10, p. 1206. doi: 10.1007/s12613-019-1885-7
|
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