Services
Geotechnical services for every design stage
Reliable and cost-effective geotechnical and structural designs for hydropower and infrastructure clients — alternative studies, preliminary design, comprehensive interpretation reports, foundation and slope stability, tunnel evaluation, and design reviews.
We assist through all design stages
Building strong foundations
Site Investigations
Sydney's geology requires precise investigations for residential and commercial foundations. We deliver defensible, compliant subsurface characterisation.
- Subsurface soil and geology characterisation
- Risk mitigation and cost-effective designs
- Compliance with NSW regulations and Australian Standards
- Soil classification (reactive clays, estuarine deposits)
- Recommendations for footings, excavation support, ground improvement
Real-time subsurface QA
On-site Geotechnical Verification
During pile construction we verify subsurface conditions, check bearing capacity, and provide same-day reporting of variations.
- Bored pile socket and shaft validation
- Trench stability and support system verification
- Bearing capacity and founding stratum assessment
- Foundation level and specification inspections
- Pile and crane working platform load assessment
- On-site logging with immediate variation escalation
Independent technical reviews
Expert Witness Services
Independent evaluation of ground conditions and foundation designs for litigation and dispute resolution.
- Geotechnical negligence reviews
- Industry best-practice assessments
- Subsurface material analysis (soil and rock)
Shoring and retention systems
Deep Excavation
Shoring design for building basements and deep excavations with integrated stability verification.
- Sheet piles, contiguous piles, and soldier piles
- Slope stability analysis around excavations
- Soil and rock profiling
Data to design — interpreted
Geotechnical Interpretation Report (GIR)
Comprehensive reports that convert raw investigation data into defendable design parameters and engineering recommendations.
- Borehole logs, geophysical surveys, and test results
- Soil and rock characterisation — strength and parameters
- Tunnelling risk assessment
- Retaining structures, cuttings and embankment recommendations
Stratigraphy for dams and foundations
Soil and Rock Profiling
Detailed profiling for dam foundations — combining boreholes, lab, and geophysics into actionable stratigraphic models.
- Borehole interpretation (SPT, lab tests)
- Geophysical surveys (seismic, electrical, GPR)
- Stratification and foundation suitability analysis
- Geohazard identification (liquefaction, karst, fault lines)
Limit equilibrium and FEM
Slope Stability Analysis
Rigorous slope stability analysis for infrastructure projects, cuttings, embankments, and dam abutments.
- Limit equilibrium and FEM analysis
- Stress analysis and groundwater evaluation
- Excavation support design
- Seismic analysis for embankments and dam abutments
Tunnels and caverns
Underground Excavation
Design of tunnels, portals, and large caverns using modern numerical methods and empirical classifications.
- Multi-stage FEM modeling
- Rock mass classifications
- Convergence-confinement support design
- Tunnel portals and powerhouse caverns
Hydropower & transportation tunnels
Tunnel Lining Design
Lining design for hydropower and transportation tunnels with integrated hydrogeological and stability considerations.
- Internal and external water pressures
- Wedge forces and rock block analysis
- Slope stability at portals
- Integrated soil/rock profiling
Inflow, drawdown, settlement
Seepage and Groundwater Modelling
Assess groundwater inflow during construction, predict water level changes, and quantify drawdown-induced settlement on neighbouring properties.
- Construction inflow predictions
- Water level changes and settlement
- Seepage impact assessments
Use our online calculators or read the blog
Use our online calculators or read the blog for deeper technical insights.