GEOTECHNICAL AND GEOLOGICAL SURVEYS AND STUDIES

Our operational and technical teams are multidisciplinary and have expertise in subsoil prospecting. We offer various forms of geological/geotechnical sampling of soils and rocks, characterization and geotechnical testing of samples, supporting dredging and rock clearing projects, construction and foundations, slope stability studies, correlation of geophysical methods, among other activities using drills and special samplers.

Field surveys:

• Percussion drilling (SPT)
• Rotary drilling
• Mixed drilling
• Auger
• Shelby
• Inspection well
• Vibracore
• Vane test
• CPTU
• GPR (Ground Penetrating Radar – Shallow Geophysics)

Laboratory tests:

• After collection and storage, samples are transported to partner testing laboratories for laboratory tests, according to relevant procedures and technical standards (NBR).
• Complete granulometric analysis
• Atteberg indices
• Moisture content
• Maximum void index
• Minimum void index
• Specific weight of solids
• Natural specific weight
• Organic matter content
• Torvane test
• Special tests
• Triaxial
• Uniaxial

Offshore drilling
UMI SAN has equipment for onshore and offshore geotechnical surveys. Floating platforms allow geotechnical surveys to be carried out in sheltered locations, without the action of waves. For locations with wave interference, we use Plael, a self-elevating platform for surveying in deeper areas (up to 15 m of water depth).