Brantax - engineering survey

underwater, underground
and surface investigation

Vertical Electrical Sounding (VES)

Vertical Electrical Sounding (VES) is by far the most used method for geoelectric surveying, because it is one of the cheapest geophysical method and it gives very good results in many area of interest.

The field measurements technique is adjustable for the different topographic conditions and the interpretation of the data can be done with specialized software, with a primary interpretation immediately after the measurements. The results of VES measurements can be interpreted qualitatively as well as quantitatively. The quantitative interpretation, in the case of mineral exploration, can give the chance to evaluate the reserves in a certain area of interest.

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The principle of this method is to insert a electric current, of known intensity, through the ground with the help of two electrodes (power electrodes – AB) and measuring the electric potential difference with another two electrodes (measuring electrodes – MN). The investigation depth is proportional with the distance between the power electrodes.

272_VES_metod_roVertical electric sounding method, as all geophysical methods, needs for a good interpretation the presence of a contrast in resistivity. As the contrast is greater, the results are better.

 21_geoelectrical_section_enThe technology is applicable on rivers and lakes also, making it possible to find out the geology of under water terrain. This method has proven efficient in designing vertical guided boreholes and other engineer projects.

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VES applications:

  • Aquifer description
  • Bedrock depth
  • Mapping geological boundaries
  • Identification of fractures in the bedrock
  • Mapping of sand and gravel deposits
  • Sol / Strate unconsolidated
  • Mineral Exploration
  • Geological mapping
  • Mapping groundwater depth
  • Mapping spots brine
  • Groundwater Contamination
  • Inorganic pollutants leak detection
  • Leaking landfill
  • Maps of saline soils
  • Identify wells
  • Old settlements
  • Depth mapping rocks