THEORETICAL AND EXPERIMENTAL INVESTIGATIONS FOR CAVITY RESEARCH WITH GEOELECTRICAL RESISTIVITY METHODS

The authors study the usefulness of geoelectrical resistivity methods for detecting cavities. A theoretical study was conducted of the different conventional measurement arrangements, focused arrangements and special arrangements for geoelectrical investigation between two boreholes. The detectability limits of a cylindrical cavity of given transverse section and depth was calculated for different measurement arrangements by means of apparent resistivity calculations. Furthermore the influence of possible errors is investigated for focused systems. Part 2 considers the apparent resistivity, the disturbing potential due to the cavity, and the normal potential of the measurement arrangement for a homogeneous terrain. In the last part of the article, theoretical results are compared with in-situ measurements. (TRRL)

  • Corporate Authors:

    European Association of Exploration Geophysicists

    30 Carel van Bylandtlaan
    The Hague,   Netherlands 
  • Authors:
    • Militzer, H
    • Roesler, R
    • Loesch, W
  • Publication Date: 1979-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 640-652
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00331148
  • Record Type: Publication
  • Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM