Geotechnical Site Investigation

Cone resistance, sleeve friction and pore pressure measured in real time every 2 cm of depth, the continuous profile of the subsoil with no sampling required.

The benchmark test of Brazilian geotechnics: penetration resistance index and a soil sample every metre.

The Marchetti blade measures soil stiffness in situ with high repeatability, modulus, horizontal stress and stress history.

The thin-wall tube that recovers the undisturbed sample of soft soils, the sample the laboratory test requires.

Field vane test for the undrained shear strength of soft clays, measured in situ.

Combines SPT in the soil and diamond rotary in the rock, in the same borehole, from the top to the founding level.

Double-wall sampler for undisturbed samples in stiffer soils, where the Shelby does not penetrate.

Undisturbed block hand-carved in an inspection pit: the highest-quality sample for advanced laboratory testing.

Recovers a continuous soil profile, revealing the stratigraphy without the gaps of the SPT.

Hollow helical auger that drills dry and allows sampling through the stem, ideal where water cannot be used.

Ménard pressuremeter test: the probe expands in the borehole and measures the pressure-strain relationship of the soil in situ, for modulus and limit pressure.

Adds shear-wave velocity (Vs) measurement to the flat dilatometer test for dynamic moduli.

Drilling methods and samplers to recover disturbed and undisturbed soil samples.

Water pressure test in rock mass, the basis for assessing permeability and grouting.

Boreholes executed from floating platforms and barges on rivers, lakes and flooded areas.