Advertisement

Medium-Term Strength and Electromagnetic Radiation Characteristics of Cemented Tailings Backfill Under Uniaxial Compression

  • Shuai Cao
  • Weisong Song
Technical Note
  • 47 Downloads

Abstract

It is important to grasp the medium-term mechanical properties of cemented tailings backfilling (CTB) for the structural parameter design. The CTB samples with the cement to tailings (c/t) ratio of 1:4, the slurry mass of 70 and 75%, respectively. The uniaxial compressive tests were carried out on the CTB samples of curing time of 56 and 90 days respectively by SANS servo and CTA-1 acoustic–electric dynamic data acquisition system. The experimental results show that: (1) the CTB samples are accompanied with the electromagnetic radiation signal release during the loading process. The stress of the CTB samples are almost linearly distributed before the peak compressive strength. After the peak strength, the uniaxial stress decreases rapidly with the increase of the loading time, and the specimens of CTB rapidly damage; (2) during the loading process, the pulse count and energy of the electromagnetic pulse show the initial calming stage, the first active stage, the second calm stage before the peak strength, second active and the calming stage with the increase of the loading time, showing “calm-active-calm-active-calm”. The accumulated pulse count and cumulative energy increase with the loading time, and gradually stabilize after the second active stage. And the results may provide a beneficial inference for researches on production mechanism and forecast of the fugitive disaster of CTB.

Keywords

Cemented tailings backfill (CTB) Medium-term strength Pulse counts Evolution law 

Notes

Acknowledgements

The author desire to communicate their thankfulness to the National Key R&D Program of China (2017YFC0602900) and Fundamental Research Funds for the Central Universities (FRF-TP-17-075A1) for financial support. We also thank Miss Ruiwen Ma and Group Song for their participation in test program. Special thanks are extend to two anonymous reviewers for their constructive and helpful comments that significantly improved the quality of the manuscript.

References

  1. Benzaazoua M, Fall M, Belem T (2004) A contribution to understanding the hardening process of cemented pastefill. Miner Eng 17:141–152CrossRefGoogle Scholar
  2. Cao S, Song WD (2017) Effect of filling interval time on the mechanical strength and ultrasonic properties of cemented coarse tailing backfill. Int J Miner Process 166:62–68CrossRefGoogle Scholar
  3. Cao S, Song WD, Xue GL, Wang Y, Zhu PR (2015) Tests of strength reduction of cemented tailings filling considering layering character. Rock Soil Mech 36(10):2869–2876Google Scholar
  4. Cao S, Song WD, Xue GL, Ma RW, Zhu PR (2016) Mechanical characteristics variation of stratified cemented tailings backfilling and its failure modes. J China Univ Min Technol 45(4):717–722+728Google Scholar
  5. Fall M, Benzaazoua M, Saa E (2008) Mix proportioning of underground cemented tailings backfill. Tunn Undergr Space Technol 23:80–90CrossRefGoogle Scholar
  6. Gao ZH, He FL, Meng JQ, Wang B (2011) Determine the warning value of drilling cuttings weight coal and rock dynamic disaster through electromagnetic radiation. J China Coal Soc 36(4):615–618Google Scholar
  7. Hu SB, Wang EY, Li ZH, Shen RX, Liu J (2014) Nonlinear dynamic characteristics of electromagnetic radiation during loading coal. J China Univ Min Technol 43(3):380–387Google Scholar
  8. Jiang YD, Lv YK, Zhao YX, Cui ZJ (2012) Principal component analysis on electromagnetic radiation rules while fully mechanized coal face passing through fault. Procedia Environ Sci 12:751–757CrossRefGoogle Scholar
  9. Kesimal A, Yilmaz E, Ercikdi B, Alp I, Yumlu M, Ozdemir B (2002) Laboratory testing of cemented paste backfill. J Chamb Min Eng Turk 41(4):25–32Google Scholar
  10. Klein K, Simon D (2006) Electromagnetic properties of cemented paste backfill. J Environ Eng Geophys 11(1):27–41CrossRefGoogle Scholar
  11. Li XB, Du J, Gao L, He SY, Gan L, Sun C, Shi Y (2017) Immobilization of phosphogypsum for cemented paste backfill and its environmental effect. J Clean Prod 156:137–146CrossRefGoogle Scholar
  12. Ma J, Wang Y, Wang CN, Xu Y, Ren GD (2017) Mode selection in electrical activities of myocardial cell exposed to electromagnetic radiation. Chaos, Solutions Fractals 99:219–225CrossRefGoogle Scholar
  13. Simon D, Grabinsky MW (2012) Electromagnetic wave-based measurement techniques to study the role of Portland cement hydration in cemented paste backfill materials. Int J Min Reclam Environ 26(1):3–28CrossRefGoogle Scholar
  14. Song XY, Li XL, Li ZH, Zhang ZB, Cheng FQ, Chen P, Liu YJ (2018) Study on the characteristics of coal rock electromagnetic radiation (EMR) and the main influencing factors. J Appl Geophys 148:216–225CrossRefGoogle Scholar
  15. Thottarath T (2010) Electromagnetic characterization of cemented paste backfill in the field and laboratory. M.Sc. thesis, University of Toronto, Canada, pp 1–117Google Scholar
  16. Wang EY, Zhao EL (2013) Numerical simulation of electromagnetic radiation caused by coal/rock deformation and failure. Int J Rock Mech Min Sci 57:57–63Google Scholar
  17. Wang C, Xu JK, Zhao XX, Wei MY (2012) Fractal characteristics and its application in electromagnetic radiation signals during fracturing of coal or rock. Int J Min Sci Technol 22(2):255–258CrossRefGoogle Scholar
  18. Wang N, Qin QM, Chen L, Zhao SS, Zhang CY, Hui J (2016) Direct interpretation of petroleum reservoirs using electromagnetic radiation anomalies. J Petrol Sci Eng 146:84–95CrossRefGoogle Scholar
  19. Wu YL, Li W (2010) Study on technology of electromagnetic radiation of sensitive index to forecast the coal and gas hazards. Procedia Eng 7:327–334CrossRefGoogle Scholar
  20. Xiao HF, He XQ, Wang EY (2006) Research on transition law between EME and energy during deformation and fracture of coal or rock under compression. Rock Soil Mech 27(7):1097–1100Google Scholar
  21. Xie S, Yang Y, Hou GY, Wang J, Ji ZJ (2016) Development of layer structured wave absorbing mineral wool boards for indoor electromagnetic radiation protection. J Build Eng 5:79–85CrossRefGoogle Scholar
  22. Xu W, Tian X, Cao P (2017) Assessment of hydration process and mechanical properties of cemented paste backfill by electrical resistivity measurement. Nondestr Test Eval.  https://doi.org/10.1080/10589759.2017.1353983 Google Scholar
  23. Yao JM, Yan YY, Shui GH, Yao JW, Li SZ (2010) Study of fractal characteristics of electromagnetic emission during coal and rock mass fracture. Chin J Rock Mech Eng 29(supp2):4102–4107Google Scholar
  24. Yilmaz E, Benzaazoua M, Belem T, Bussiere B (2009) Effect of curing under pressure on compressive strength development of cemented paste backfill. Minerals Engineering 22(9–10):772–785CrossRefGoogle Scholar
  25. Yilmaz Erol, Belem Tikou, Bussière Bruno, Benzaazoua Mostafa (2011) Relationships between microstructural properties and compressive strength of consolidated and unconsolidated cemented paste backfills. Cem Concr Compos 33:702–715CrossRefGoogle Scholar
  26. Zhang LS, Yang XB, Qin YP (2011) Relation between EME energy accumulation and damage of coal and rock. J Liaoning Tech Univ (Nat Sci) 30(1):13–16Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Civil and Resources EngineeringUniversity of Science and Technology BeijingBeijingChina
  2. 2.State Key Laboratory of High-Efficient Mining and Safety of Metal Mines of Ministry of EducationUniversity of Science and Technology BeijingBeijingChina
  3. 3.Department of Resources EngineeringUniversity of Science and Technology BeijingBeijingChina

Personalised recommendations