Geophysics

Non-invasive Investigations to Understand the Subsoil

Applied geophysics allows you to explore the subsoil, with methodologies based on the principles of terrestrial physics. In this way it is possible to acquire, in a non-invasive way, information on the characteristics and geological structure of the subsoil.

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Down-Hole

The Down-Hole test allows to reconstruct the velocity profile of the P and S waves and to determine the elastodynamic modules of the soil. It is based on the analysis of the time of arrival of the waves generated on the surface and recorded by a three-dimensional geophone

Cross-Hole

The Cross-Hole method measures with great precision the speed of the P and S waves between two survey holes, allowing a detailed characterization of the soils in depth. Ideal for geomechanical analysis, seismo-stratigraphic reconstruction and microzonation, with the possibility of high-resolution tomographic surveys.

MASW

The technique analyzes surface waves generated in the ground to obtain a vertical profile of shear wave velocity (Vs), essential for the seismic characterization of the soil.

REMI/ESAC

The method, based on passive acquisition of microtremors, working on low frequencies allows to obtain the profile of Vs even at high depths.

Refraction Seismic

The refraction seismic allows to reconstruct the seismo-stratigraphy by evaluating the arrival times of the P and S waves generated by a mechanical source. In tomographic mode a more detailed definition of the elasto-mechanical properties of the subsoil is obtained.

Reflection Seismic

The reflection seismic allows a stratigraphic and structural reconstruction with high resolution of the subsoil through the analysis of the waves reflected by the geological discontinuities.

HVSR

The HVSR method analyses natural seismic noise to detect site resonance frequency and estimate depth of seismic bedrock. It is widely used for microzoning, local seismic response and assessment of the vulnerability of buildings.

Accelerometric Measurements

Accelerometric measurements allow real seismic action to be recorded on soils or structures, providing useful data for dynamic response assessment. They are essential for monitoring, structural checks and seismic safety studies.

Georadar

Georadar (GPR) is a geophysical methodology that allows to obtain 2D and 3D sections of the subsoil, using electromagnetic waves. Analysis of the return times of the reflected waves from the dielectric interfaces allows to identify structures, discontinuities, gaps, utilities, etc.

Electric Tomography

The electric tomography allows to reconstruct 2D and 3D sections of soil resistivity to identify lithological dishomogeneity, cavities, layers, pollutants and buried structures. It offers a higher resolution than traditional SEV and SEO, being ideal for geological and environmental studies.

Electromagnetic Induction

The technique allows to analyze the subsoil by means of the measurement of magnetic fields produced by currents induced in the ground by electromagnetic fields generated on the surface.

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