Electrical tomography

The applications of electrical tomography are many and varied, they are used in geology, archeology, geotechnical and hydrogeology studies.

In building and civil works, electrical tomography is a great ally for the detection of elements and pathologies. On the one hand, the detailed obtaining of buried structures and their disposition is essential in adjacent reforms, rehabilitations, extensions or new constructions. Obtaining a prior record of the elements is essential in the execution of the work.

On the other hand, it finds the cause of problems such as: humidity, differential settlements of the structure, cavities, leaks, fissures, contamination leaks, etc. goes through the hand of resistive electrical tomography. Water leaks in buried services can cause major imbalances in the composition of the soil, which in turn cause serious damage to structures in existing buildings. Thanks to this process of analysis of the subsoil, it was possible to determine the cause of the problem and its location. Early detection can avoid many problems for existing structures.

tomografia electrica resistiva
tomografia electrica asfalto

The resolution allows to characterize geometrically the singularity of the subsoil. The electrical resistivity models obtained make it easier to deal effectively with problems in soils with high structural complexity. The method is a fundamental pillar to adjust or specify other procedures such as geotechnical drilling and piezometers.


  • Detection of lithological contacts of different nature, determining their limits and morphology.

  • Characterization of faults determining their zone of influence, course, dip and depth extension.

  • Detection of cavities, caves, subsidence, karstification, tanks and deposits …

  • Characterization of aquifer units, water tables, hot springs, marine intrusion or invasion, etc.

  • Exploration of seepage in dams and pipes.

  • Archaeological research.

  • Detection of leachate and polluting feathers.

  • Mining exploration, clays and metallic minerals.

  • Monitoring the impermeability of landfills over time.

ERT profiles