SERVICES

GEOTECHNICAL EXPLORATION

Geotechnical probes on land with drilling equipment on trucks or skids
Geotechnical probes in shallow waters from self-elevating Jack Up style vessels or floating jigs.
Probes from dedicated geotechnical vessels up to 200 m of water depth.
Disturbed and undisturbed soil sampling
Samples taken from the seabed with a gravitational tester (Gravity/Piston core), vibration monitor (vibro core) and box core
Standard penetration testing (SPT) in shallow waters (up to 20 m). With optional power measurement
Cone penetration testing (CPTU): with push equipment from the surface (top push), 200 kN capacity in shallow waters (up to 20 m); in Sea Drive mode, Wheel Drive type, and with Wison APVdB type wiring system.
Geotechnical demonstration driven by wireline hammer
PS records with penetration of shear wave propagation velocity profile (Vs).
Seismic cone penetration testing (SCPTU) with shear wave propagation velocity measurement (Vs)

Geological/Geotechnical Risk Analysis for civil and/or oil infrastructures
Probabilistic Seismic Hazards and Risks Assessments (PSHA)
Assessment of pipe routes
Drilling and stability analysis of spud can type foundations for self-elevating platforms (Jack Up)
Static and dynamic analysis of direct and deep foundations for coastal oil platforms, docks and dikes, PLEM, wind farms, anchorage systems, among others
Slope stability analysis

Geotechnical lab on land

Basic soil classification testing (humidity, granulometry, hydrometry, unit weight, specific gravity, consistency limits, visual soil classification)
Qualitative and quantitative determination of carbonate content
Motorized vane shear testing (ASTM D4648-D4648M)
Unconsolidated triaxial testing (U), or consolidated isotropically (CI), consolidated anisotropically (CA) or with zero lateral deformation (CKo). Loaded in a drained (D) or undrained (U) manner, in compression (C) or extension (E). Tests can be performed under triaxial compression or extension loading conditions
One dimensional consolidation testing (oedometer test) (ASTM D 2435)
Controlled rate deformation consolidation CRS (ASTM D4186)
Uniaxial rock compression with axial and lateral strain (UCS) measurements (ASTM D7012, method C/D).
Indirect traction testing (Brazilian test) (ASTM D3967)
Point load test (ASTM D5731)
Direct shear (ASTM D3080)
Cyclic direct simple shear testing (CDSS) at low frequencies (less than 1 Hz).
Humidity controlled room for sample preservation

Geotechnical lab on board a geotechnical vesse

Basic soil classification testing (humidity, granulometry, unit weight, visual classification)
Pocket penetrometer and Torvane

High-definition marine geophysics

Seabed characterization with multibeam and single-beam echo sounders, side-scan sonar and magnetometer studies
Data acquisition with Chirp or Pinger type surface profilers, and Boomer or Sparker type intermediate profilers for acoustic characterization of the seabed
Acquisition and analysis of high resolution 2D seismic data (2D HR)
Integrated site studies: Geophysics, Geotechnics and Geology
Geological risk assessment and analysis of civil infrastructure and offshore oil operations

High resolution geophysics on land

Acoustic characterization of the subsoil with seismic methods:
Borehole seismic: P and S wave velocity profiles with Downhole and Crosshole type measurements
P and S wave refraction seismic tomography (non-invasive method)
Subsoil electric characterization
Vertical electrical soundings (VES) for grounding systems and corrosion protection
Electrical tomography

Environmental Studies

Environmental/Geoenvironmental Engineering

Risk management

Marine Studies (break walls, breakwaters, coastal reclamation projects, artificial beach nourishment projects)
Meteorological and oceanographic studies (METOCEAN)
Design and planning of coastal areas
Modelling of the coastal process
Planning and design of ports, terminals, artificial islands and platforms
Dredging engineering
Civil port construction, including piles, sheet piles and docks