1887

Abstract

Summary

Acoustic emissions are powerful data for characterizing the deformation of geological media. Nevertheless, there is still a lack of knowledge to understand the link between the mechanical stimulation of the medium and the recorded acoustic emissions. In this paper, we open the path for a tool that extracts and analyzes acoustic emissions from geomechanical simulations performed with a discrete element method. We discuss the capability of our tool by comparing statistics of our synthetic seismic activity with classical scaling laws observed on natural seismic catalogs. Analyses are performed on intact rock samples. We retrieve consistent spatial correlations of micro-seismic events and consistent $b-values$. However, fitting Omori’s law is more challenging.

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/content/papers/10.3997/2214-4609.201701223
2017-06-12
2022-06-29
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References

  1. Cundall, P.A. and Strack, O.D.L.
    [1979] A discrete numerical model for granular assemblies. Geotech-nique, 29(1), 47–65.
    [Google Scholar]
  2. Gutenberg, B. and Richter, C.F.
    [1956] Magnitude and energy of earthquakes. Annals of Geophysics, 9(1), 1–15.
    [Google Scholar]
  3. Hazzard, J. and Damjanac, B.
    [2013] Further investigations of microseismicity in bonded particle models. In: Continuum and Distinct Element Numerical Modeling in Geomechanics, Zhu, Detournay, Hart & Nelson.
    [Google Scholar]
  4. Hirata, T.
    [1989] A correlation between the b value and the fractal dimension of earthquakes. Journal of Geophysical Research: Solid Earth, 94(B6), 7507–7514.
    [Google Scholar]
  5. Kagan, Y.Y. and Knopoff, L.
    [1980] Spatial distribution of earthquakes: the two-point correlation function. Geophysical Journal International, 62(2), 303–320.
    [Google Scholar]
  6. Kanamori, H.
    [1977] The energy release in great earthquakes. Journal of Geophysical Research, 82(20), 2981–2987.
    [Google Scholar]
  7. Omori, F.
    [1894] On the aftershocks of earthquakes. Journal of the College of Science, 111–200.
    [Google Scholar]
  8. Raguenel, M., Scholtès, L. and Cupillard, P.
    [2015] Extracting acoustic emissions and microseismic activity from a discrete geomechanical model. In: 35th Gocad Meeting — 2015 RING Meeting. ASGA.
    [Google Scholar]
  9. Scholtès, L. and Donzé, F.V.
    [2013] A DEM model for soft and hard rocks: Role of grain interlocking on strength. Journal of the Mechanics and Physics of Solids, 61(2), 352–369.
    [Google Scholar]
  10. Smilauer, V., Catalano, E., Chareyre, B., Dorofeenko, S., Duriez, J., Dyck, N., Elias, J., Er, B., Eulitz, A., Gladky, A., Guo, N., Jakob, C., Kneib, F., Kozicki, J., Marzougui, D., Maurin, R., Modenese, C., Scholtes, L., Sibille, L., Stransky, J., Sweijen, T., Thoeni, K. and Yuan, C.
    [2015] Yade Documentation2nd ed.
    [Google Scholar]
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