services

Geotechnical Engineering Investigations & Site Characterization

  • Geotechnical Engineering Investigations
  • Subsurface Drilling & Sampling
  • Standard Penetration Testing (SPT)
Learn More

Laboratory Testing – Soils (SPT & Shelby Tube Samples)

  • Index & Classification Testing
  • Strength Testing
  • Consolidation Testing
Learn More

Aggregate & Pavement Materials Laboratory Testing

  • Aggregate Testing
  • Asphalt Mix Design
  • Asphalt Laboratory Testing
Learn More

Concrete Materials Engineering & Testing

  • Concrete Mix Design
  • Fresh Concrete Testing
  • Compressive Strength Testing
Learn More

Foundation Engineering & Ground Interaction

  • Foundation Analyses (Shallow & Deep Foundations)
  • Pile Driving Monitoring (PDA)
  • GRL WEAP Analysis
Learn More

Geotechnical Instrumentation & Monitoring

  • Instrumentation & Monitoring Programs
  • Inclinometers
  • Pneumatic & Vibrating-Wire Piezometers
Learn More

Slope Stability, Earthworks & Forensic Engineering

  • Slope Stability Analyses
  • Design of Remedial & Stabilization Solutions
  • Forensic Geotechnical Engineering Studies
Learn More

Geophysical & Vibration Services

  • Geophysical Surveys
  • Vibration Monitoring & Attenuation Analysis
  • Evaluation of Blasting-Induced Damage
Learn More

Advanced Analysis, Modelling & Consulting

  • Advanced Numerical Modelling (PLAXIS 2D / 3D)
  • Seismic & Liquefaction Assessments
  • Engineering Consultation & Expert Services
Learn More
Electrical Resistivity Tomography (ERT) - Antigua (2025)
Electrical Resistivity Tomography (ERT) - Trinidad (2026)

Electrical Resistivity Tomography (ERT)

A non-destructive geophysical method that maps the subsurface distribution of electrical resistivity. It generates 2D or 3D cross-sectional models widely used in geotechnical engineering, hydrogeology, and environmental investigations.

Construction Monitoring & Quality Assurance

  • Construction QA/QC & Compliance Monitoring
  • Performance Verification & As-Built Evaluation
Learn More
Plate Load Test - Trinidad (2025) 3
Plate Load Test - Trinidad (2025) 2
Plate Load Test - Trinidad (2025) 1

Plate Load Test (PLT)

A field method used to determine the ultimate bearing capacity of soil and its expected settlement under a given load. This helps validate foundation design assumptions and assess the stability of working platforms.

Rotary Drilling

A method used to create deep boreholes by applying downward pressure to a rotating drill bit. It is highly efficient for resource extraction and construction.

Geotechnical Engineering Investigations & Site Characterization

Comprehensive subsurface investigations involving drilling, sampling, in-situ testing, laboratory testing, and geophysical surveys to characterize soil and rock conditions for safe, economical, and constructible designs.

Execution of boreholes using truck-mounted and portable rigs to recover disturbed and undisturbed samples, including split-spoon (SPT) samples and Shelby tube samples, with detailed logging of stratigraphy and groundwater conditions.

Performance of SPTs at specified depth intervals, including verification of drill energy and hammer efficiency, to obtain reliable penetration resistance values for design correlations.

Evaluation of surface geology, topography, drainage patterns, fills, and geomorphology to identify geotechnical risks and support site feasibility and planning.

Assessment and testing of borrow materials and aggregate sources for suitability in structural fill, embankments, pavement layers, and construction works.

Field plate load tests to determine bearing capacity, modulus of subgrade reaction, and settlement characteristics for shallow foundations and pavements.

Laboratory Testing – Soils (SPT & Shelby Tube Samples)

Laboratory testing of SPT and Shelby tube samples to determine:

  • Moisture content

  • Grain-size distribution (Sieve Analysis)

  • Hydrometer Analysis (fine-grained soils)

  • Atterberg Limits (Liquid Limit, Plastic Limit, Plasticity Index)

  • Soil classification (USCS / AASHTO)

Determination of soil shear strength parameters through:

  • Unconfined Compressive Strength (UCS)

  • Direct Shear Testing

  • Triaxial Testing (UU, CU, CD as required)

One-dimensional consolidation testing on Shelby tube samples to evaluate:

  • Compressibility characteristics

  • Coefficient of consolidation

  • Preconsolidation pressure

  • Settlement behavior under applied loads

Laboratory determination of permeability for cohesive and granular soils to support seepage, drainage, and groundwater analyses.

Aggregate & Pavement Materials Laboratory Testing

Laboratory evaluation of aggregates for asphalt and concrete applications, including:

  • Sieve analysis and grading

  • Specific gravity and absorption

  • Abrasion resistance

  • Soundness

  • Deleterious materials content

Development of asphalt mix designs (Marshall or performance-based, as applicable) to meet specified stability, durability, and volumetric requirements.

Testing includes:

  • Asphalt extraction and recovery

  • Aggregate gradation

  • Marshall stability and flow

  • Bulk density, maximum theoretical density

  • Air voids, VMA, and VFA

Quality assurance and quality control testing during asphalt placement, including density, compaction, temperature, thickness, and compliance verification.

Concrete Materials Engineering & Testing

Design of concrete mixes to achieve specified strength, durability, and workability using approved aggregates, cementitious materials, and admixtures.

On-site and laboratory testing including slump, air content, temperature, and unit weight.

Testing of concrete cylinders and cubes at designated curing ages (e.g., 7, 14, 28 days) to confirm compliance with design requirements.

Foundation Engineering & Ground Interaction

Evaluation and design of spread footings, raft foundations, driven piles, drilled shafts, and ground improvement systems.

Dynamic testing to evaluate pile capacity, driving stresses, hammer performance, and installation quality.

Wave equation analyses to predict pile drivability, stresses, and capacity prior to installation and to support PDA interpretation.

Low-strain integrity testing to assess pile continuity and detect defects.

Advanced testing for drilled shafts and diaphragm walls, including CHA and tomographic sonic methods.

Processing and interpretation of sonic integrity data using specialized software to produce defensible results.

Geotechnical Instrumentation & Monitoring

Design, installation, and monitoring of geotechnical instrumentation to assess ground behavior during and after construction.

Monitoring of lateral ground movements in slopes, excavations, and retaining systems.

Measurement of groundwater and pore-water pressures to assess stability and consolidation behavior.

Slope Stability, Earthworks & Forensic Engineering

Evaluation of natural and engineered slopes using limit-equilibrium and numerical methods

Engineering design of slope stabilization measures including drainage, reinforcement, retaining structures, and ground improvement.

Investigation of failures, excessive settlement, structural distress, or slope movements to determine causes and recommend remedial actions.

Geophysical & Vibration Services

Non-intrusive subsurface investigations including:

  • Electrical Resistivity Tomography (ERT)

  • MASW

  • Seismic Refraction / Tomography

Used to map stratigraphy, bedrock depth, groundwater conditions, voids, and stiffness profiles.

Monitoring and analysis of vibrations due to blasting or construction activities, including assessment of potential damage and regulatory compliance.

Assessment of ground response and structural impacts from blasting operations.

Advanced Analysis, Modelling & Consulting

Finite-element modelling of soil–structure interaction, foundations, excavations, retaining systems, embankments, and consolidation behavior.

Evaluation of liquefaction potential and seismic site response using field and laboratory data.

Provision of specialized geotechnical advice for complex projects, constructability reviews, and risk mitigation.

Independent technical opinions, forensic assessments, and expert testimony for arbitration and legal proceedings.

Construction Monitoring & Quality Assurance

Inspection and testing during earthworks, foundation construction, asphalt placement, and concrete works to ensure compliance with specifications.

Confirmation that constructed works perform in accordance with design assumptions and engineering requirements.