1887

Abstract

Summary

High-resolution cross-borehole tomographic data were acquired in a groundwater investigation. Both vertical and horizontal component sources were used to generate three wave types, namely P-waves, horizontally polarized and vertically polarized S-waves. The three co-located traveltime datasets were jointly inverted by employing cross-gradient constraints, thus structurally coupling the accurately determined P-wave traveltimes to the less accurate S-wave traveltimes. Multi-solutions inherent to the inverse problem were reduced and the S-wave tomograms are geologically more plausible, as they correspond better to the borehole logs than their separate inversion counterparts. This facilitates an integrated interpretation and enables the detection of aquifer heterogeneities by analysing the distribution of elastic parameters.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201801157
2018-06-11
2024-03-29
Loading full text...

Full text loading...

References

  1. Angioni, T., Rechtien, R.D., Cardimona, S.J. and Luna, R.
    [2003] Crosshole seismic tomography and borehole logging for engineering site characterization in Sikeston, MO, USA. Tectonophysics368, 119–137.
    [Google Scholar]
  2. Daley, T.M., Majer, E.L. and Peterson, J.E.
    [2004] Crosswell seismic imaging in a contaminated basalt aquifer. Geophysics, 69(1), 16–24
    [Google Scholar]
  3. Dietrich, P. and Tronicke, J.
    [2009] Integrated analysis and interpretation of cross-hole P- and S-wave tomograms: a case study. Near Surface Geophysics, 7(2), 101–109.
    [Google Scholar]
  4. Fratta, D., Tanner, W.M. and Damasceno, V.M.
    [2004] Using elastic waves for the tomographic imaging of stresses in soils. FastTIMES, 37–45.
    [Google Scholar]
  5. Gallardo, L.A. and Meju, M.A.
    [2003] Characterization of heterogeneous near-surface materials by joint 2D inversion of dc resistivity and seismic data. Geophysical Research Letters, 30(13), 1–4.
    [Google Scholar]
  6. [2004] Joint two-dimensional DC resistivity and seismic travel time inversion with cross-gradients constraints. Journal of Geophysical Research, 109(B3), B03311.
    [Google Scholar]
  7. Ku, T. and Mayne, P.W.
    [2014] Stress history profiling in soils using OCD-G0 anisotropy relationship. Geotechnical Engineering, 167(GE5), 476–490.
    [Google Scholar]
  8. Paasche, H., Ohrnberger, M., Werban, U. and Fechner, T.
    [2011] Multi-scale S-wave tomography for exploration and risk assessment of development sites (MuSaWa). Geotechnologien, 24–34.
    [Google Scholar]
  9. Sully, J.P. and Campanella, R.G.
    [1995] Evaluation of in situ anisotropy from crosshole and downhole shear wave velocity measurements. Geotechnique, 45(2), 27–282.
    [Google Scholar]
  10. Tryggvason, A. and Linde, N.
    [2006] Local earthquake (LE) tomography with joint inversion for P-and S-wave velocities using structural constraints. Geophysical Research Letters, 33(7), L07303.
    [Google Scholar]
  11. Weiβ, H., Schirmer, M., Teutsch, G. and Merkel, P.
    [2002] Sanierungsforschung in regional kontaminierten Aquiferen (SAFIRA) - 2. Projektuberblick und Pilotanlage. Grundwasser, 7(3), 135–139.
    [Google Scholar]
  12. Yamamoto, T., Nye, T. and Kuru, M.
    [1994] Porosotiy, permeability, shear strength: Crosswell tomography below an iron foundry. Geophysics, 59(10), 1530–1541.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201801157
Loading
/content/papers/10.3997/2214-4609.201801157
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error