Study on Fractal Dimension of Acoustic Emission during Cemented Backfill Micro Crack Evolution Process

Cong Gong; Chang Hong Li; Kui Zhao

doi:10.4028/www.scientific.net/AMM.556-562.236

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Study on Fractal Dimension of Acoustic Emission...

Study on Fractal Dimension of Acoustic Emission during Cemented Backfill Micro Crack Evolution Process

Abstract:

By virtue of uniaxial cyclic loading and unloading tests on cemented backfill, the studies were carried out, which are mainly on the micro crack evolution characteristics and the AE fractal characteristics in various stage of micro crack evolution. The results show the value of AE energy and fractal dimension are high in the micro holes compaction stage. By contrast, the AE energy and the fractal dimension are at the lowest level in the micro cracks compression phase. In the micro crack stable development stage, the AE events become active, and the fractal dimension keeps a steady growth trend. Finally, with stress further increasing, the AE will take on a quiet period in which the AE energy is high and the AE fractal dimension drops continuously to the lowest value till the stress reaches at peak value of the cemented backfill.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

236-240

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.236

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Online since:

May 2014

Authors:

Cong Gong*, Chang Hong Li, Kui Zhao

Keywords:

Acoustic Emission (AE), Cemented Backfill, Fractal Dimension, Micro Cracks Evolution

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References

[1] D. Lockner: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Vol. 30 (1993) No. 7, p.893.

Google Scholar

[2] S.J.D. Cox, and P.G. Meredith: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Vol. 30 (1993) No. 1, p.11.

Google Scholar

[3] L.M. Zhang, Z.Q. Wang, L. Shi and L. Kong: Chinese Journal of Rock Mechanics and Engineering, Vol. 31(2012) No. 6, p.1230.

Google Scholar

[4] X.G. Yin, S. L. Li, H.Y. Tang and J.L. Jiang: Chinese Journal of Rock Mechanics and Engineering, Vol. 28(2009) No. S2, p.3383.

Google Scholar

[5] D.M. Mchaina, S. Januszewski and R.L. Hallam: International Journal of Surface Mining, Reclamation and Environment, Vol. 15(2001) No. 15, p.123.

DOI: 10.1076/ijsm.15.2.123.3415

Google Scholar

[6] F.P. Hassani, A. Mortazavi and M. Shanbani: Journal of the Southern African Institute of Mining and Metallurgy, Vol. 108(2008) No. 8, p.463.

Google Scholar

[7] M. Fall, M. Benzaazoua and E.G. Saa: Tunnelling and Underground Space Technology, Vol. 23(2008) No. 1, p.80.

DOI: 10.1016/j.tust.2006.08.005

Google Scholar

[8] M. Fall and M. Benzaazoua: Cement and Concrete Research, Vol. 35(2005) No. 2, p.301.

Google Scholar