1887

Abstract

Summary

We have investigated the applicability of resistivity derived either from surface electrical resistivity tomography (ERT) or airborne electromagnetic (AEM) surveys to a tunnel pre-investigation. We have exploited resistivity models to map the extent of toxic black shale along a tunnel alignment in central Norway. The resistivity models acquired before excavation and supported by laboratory measurements enabled us to map geological layers that are in agreement with the rock types subsequently observed from drillings and geological logging during tunneling. Our results highlight the potential of AEM surveys for such tunnel pre-investigations.

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/content/papers/10.3997/2214-4609.201413670
2015-09-06
2020-06-05
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References

  1. Auken, E., Christiansen, A.V., Jacobsen, B.H., Foged, N. and Sørensen, K.I.
    [2005] Piecewise ID laterally constrained inversion of resistivity data. Geophysical Prospecting, 53, 497–506.
    [Google Scholar]
  2. Bazin, S., Anschütz, H., Lysdahl, A.K., Pfaffhuber, A.A. and ScheibzJ.
    [2015] ERT inversion industry standard versus cutting edge developments, time for a change?SAGEEP, Austin, USA.
    [Google Scholar]
  3. Fiandaca, G., Ramm, J., Binley, A., Gazoty, A., Christiansen, A. V. and Auken, E.
    [2013] Resolving spectral information from time domain induced polarization data through 2-D inversion. Geophysical Journal International, 192, 631–646, 2012 doi: 10.1093/gji/ggs060
    https://doi.org/10.1093/gji/ggs060 [Google Scholar]
  4. Günther, T., Rücker, C. and Spitzer, K.
    [2006] 3D modelling and inversion of dc resistivity data incorporating topography — II. Inversion. Geophysical Journal International, 166, 506–517.
    [Google Scholar]
  5. Lysdahl, A.K., Bazin, S., Anschütz, H. and Pfaffhuber, A.A.
    [2015] Black shale mapping by AEM for geotechnical applications. EAGE European Airborne Electromagnetics Conference, Turin, Italy.
    [Google Scholar]
  6. Loke, M.H.
    [2010] RES2DINV version 3.59.102. Geoelectrical Imaging 2D and 3D. Instruction Manual. Geotomo Software, http://www.geotomosoft.com2
    [Google Scholar]
  7. Sørensen, K.I. and Auken, E.
    [2004] SkyTEM — A new high-resolution helicopter transient electromagnetic system. Exploration Geophysics, 35, 191–199.
    [Google Scholar]
  8. Viezzoli, A., Christiansen, A.V., Auken, E. and Sørensen, K.I.
    [2008] Quasi-3D — modeling of airborne TEM data by Spatially Constrained Inversion. Geophysics, 73, F105–F113.
    [Google Scholar]
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