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Some Problems and Experimental Results of Seismic Shallow Prospecting

  • J. C. Tricot
  • B. Dellanoy
  • B. Piwakowski
  • P. Pernod
Part of the Acoustical Imaging book series (ACIM, volume 15)

Abstract

In spite of the relatively small depth, the detection of underground empty spaces by means of seismic reflections methods creates a problem not resolved fundamentally, up to now. The difficulties result from the impossibility of the resolution of ground roll signals and the refractions on the one hand, and the reflections from detected object, on the other. The problems increase, when decreasing the depth of the object (only depths of several meters make a limit at which the detection becomes easier1). Few references show that, in spite of the universal principles of the proceeding, the method and the way of detection must be carefully chosen according to the geological conditions and the detected object parameters.

Keywords

Mixed Layer Source Position Automatic Gain Control Tunnel Position Ground Roll 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • J. C. Tricot
    • 1
  • B. Dellanoy
    • 1
  • B. Piwakowski
    • 1
  • P. Pernod
    • 1
  1. 1.Laboratoire de Physique de Vibrations et d’Acoustique(C.N.R.S. U.A. 832 Valenciennes) Institut Industriel du NordFrance

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