Geotechnical Services

Geotechnical Assessment and Modelling

Sefcom Environmental Consulting (SEC) delivers integrated geotechnical advisory and engineering services that support safe, stable, and climate-resilient mining and infrastructure development.

We provide risk-informed geotechnical solutions to minimise instability, protect assets, and ensure regulatory compliance across the full project lifecycle, from investigation and design through operations and closure. Our multidisciplinary teams combine expertise in geotechnical engineering, rock and soil mechanics, geological engineering, hydrology, hydrogeology, and tailings systems to deliver technically defensible and operationally practical outcomes.

Core Geotechnical Capabilities:

Geotechnical Investigation & Site Characterisation

• Mining geotechnical investigations
• Subsurface profiling and material characterisation
• Rock mass and soil mechanics assessment
• Integration with structural geology and hydrogeology inputs

Mining & Infrastructure Stability

• Open pit slope stability assessment
• Underground excavation and tunnel stability
• Cut roads and civil earthworks stability
• Tailings storage facility (TSF) geotechnical support

Geotechnical Numerical Modelling

• 2D and 3D stability modelling
• Stress–strain and deformation analysis
• Seepage–stability interaction modelling
• Risk-based scenario and sensitivity analysis

Operational Geotechnical Support

• Ongoing slope and ground performance monitoring
• Hazard identification and risk mitigation planning
• Design review and technical assurance
• Closure stability and long-term performance assessment