Damage evaluation indexes for cemented tailings backfill based on RA and AF values
Source abstract
Abstract
In order to study the damage properties of CTB during mining, uniaxial compression tests were performed on CTB. By analysing the characteristics of the acoustic emission (AE) parameters, the change rules of RA (rise time/amplitude) and AF (average frequency) values during the damage process, the damage destruction process of the CTB was investigated. The results show that, when the load level is 20–70% of the peak strength, the cumulative ringing counts increase exponentially with time. Therefore, it is proposed to use RA and AF indexes to evaluate the damage stressing process of the CTB. It is considered that when k(AF/RA) > 80, the tensile force is the dominant force in the specimen. In addition, the constitutive equation obtained by combining the AE ringing counts and the Gompertz function provides a better representation of the degree of damage to the CTB.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Tailings Management and Properties · Rock Mechanics and Modeling · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ministry of Ecology and Environment
Jiangxi University of Science and Technology
Funding
National Natural Science Foundation of China · Training Plan for Academic and Technical Leaders of Major Disciplines of Jiangxi Province · Natural Science Foundation for Distinguished Young Scholars of Jiangxi · China Postdoctoral Science Foundation · National Key Research and Development Program of China
References (32)
Show source-provided references
1. Cai M, Xue D, Ren F. Current status and development strategy of metal mines. Chin J Eng. 2019;41(4):417–426.
2. Li SC, Wang HP, Qian QH, et al. In-situ monitoring research on zonal disintegration of surrounding rock mass in deep mine roadways. Chin J Rock Mech Eng. 2008;27(8):1545–1553.
3. Xie H, Gao F, Ju Y. Research and development of rock mechanics in deep ground engineering. Chin J Rock Mech Eng. 2015;34(11):2161–2178.
4. Song Z, Wen Z. Current situation and development direction of coal resource exploitation. Sci Technol Rev. 2011;35(29):29–35.
5. 10.1016/j.conbuildmat.2021.12311910.1016/j.conbuildmat.2021.123119 ↗
6. 10.1016/j.mineng.2003.10.02210.1016/j.mineng.2003.10.022 ↗
7. Fu J, Du C, Song W. Strength sensitivity and failure mechanism of full tailings cemented backfills. J Univ Sci Technol Beijing. 2014;36(9):1149–1157.
8. He MC, Xie HP, Peng SP. Study on rock mechanics in deep mining engineering. Chin J Rock Mech Eng. 2005;24(16):2803–2813.
9. Xu W, Du J, Song W, et al. Experiment on the mechanism of consolidating backfill body of extra-fine grain unclassified tailings and cementitious materials. Rock Soil Mech. 2013;34(8):2295–2302.
10. Chen A, Shu P, Zhang Y. AE characteristics and damage constitution of backfill-surrounding rock combination. J Min Saf Eng. 2020;37(6):1238–1245.
11. Zhao K, Zhu S, Zhou K, et al. Mechanical properties of tantalum niobium tailings cemented concrete under different proportions and concentration. J Basic Sci Eng. 2020;28(4):833–842.
12. Hou Y, Yin S, Cao Y. Analysis of damage characteristics and energy dissipation of cemented tailings backfill with different curing ages under uniaxial compression. J Central South Univ Sci Technol. 2020;51(7):1955–1965.
13. Liu Z, Li X, Zhao G, et al. Three-dimensional energy dissipation laws and reasonable matches between backfill and rock mass. Chin J Rock Mech Eng. 2010;29(2):344–347.
14. Yi X, Liu C, Wang Y. Experimental study on the fracture evolution of cemented waste rock-tailings backfill (CWRB) of metal ore using in-situ CT scanning. Rock Soil Mech. 2020;41(10):3365–3373.
15. Liang X, Dang F. The stress state and strength analysis of a compression concrete specimen. J Disaster Prev Mitigation Eng. 2018;38(4):763–767.
16. Li Y, Sun G, Liu X. Experimental study on fractal characteristics and damage evolution of filling AE. J Exp Mech. 2019;34(6):1053–1060.
17. 10.1007/s11771-020-4294-110.1007/s11771-020-4294-1 ↗
18. Gan Y, Wu S, Ren Y. Evaluation indexes of granite splitting failure based on RA and AF of AE parameters. Rock Soil Mech. 2020;41(7):2324–2332.
19. Zhao X, Li Y, Yuan R. Study on crack dynamic propagation process of rock samples based on AE location. Chin J Rock Mech Eng. 2007;26(5):944–950.
20. Ren H, Ning J, Song S. Investigation on crack growth in concrete by moment tensor analysis of AE. Chin J Theor Appl Mech. 2019;51(6):1830–1840.
21. Hirata A Ishiyama K Taga N et al. AE monitoring and rock stress measurement in rock burst site[c]//isrm congress. ISRM. 1991. ISRM-7CONGRESS-1991-101.
22. 10.1016/j.mechrescom.2011.03.00710.1016/j.mechrescom.2011.03.007 ↗
23. 10.1016/j.tafmec.2016.03.01210.1016/j.tafmec.2016.03.012 ↗
24. 10.1016/j.conbuildmat.2010.05.00410.1016/j.conbuildmat.2010.05.004 ↗
25. 10.1016/j.ymssp.2017.09.02210.1016/j.ymssp.2017.09.022 ↗
26. 10.1016/j.powtec.2024.11947910.1016/j.powtec.2024.119479 ↗
27. 10.1016/j.powtec.2023.11904710.1016/j.powtec.2023.119047 ↗
28. 10.1016/j.conbuildmat.2020.12126110.1016/j.conbuildmat.2020.121261 ↗
29. Zhao K, Huang M, Yan Y, et al. Mechanical properties and synergistic deformation characteristics of tailings cemented filling assembled material body with different cement-tailings ratios. Chin J Rock Mech Eng. 2020;28(4):833–842.
30. Wu Q, Hu H. Law analysis of soft soil settlement treated by vacuum preloading based on Gompertz growth curve. Chin J Rock Mech Eng. 2006;25(S2):3600–3606.
31. 10.1016/S0020-7403(97)00145-810.1016/S0020-7403(97)00145-8 ↗
32. 10.1016/S0021-9290(03)00010-110.1016/S0021-9290(03)00010-1 ↗