Our services

GT4 provides specialist geotechnical and mining engineering services focused on understanding ground behaviour, managing geotechnical risk, and supporting informed engineering decisions.

Our services are applied across surface and underground environments and are tailored to the specific technical challenges, data availability, and risk profile of each project. Engagements range from targeted technical opinion through to more comprehensive design support, analysis, and independent review.

Mine design and technical support

GT4 provides technical support across all stages of mine design, from early concept studies through to detailed design and operational review.

Our input focuses on understanding ground conditions, assessing design assumptions, and supporting practical, defensible engineering decisions aligned with site conditions, project constraints, and risk tolerance.

Ground support and stability

Ground support and stability assessment is central to safe and effective mining operations.

GT4 assesses ground behaviour and support performance using site data, engineering judgement, and where appropriate, analytical or numerical tools. Recommendations are developed with consideration of operational practicality and the uncertainty inherent in ground conditions.

Modelling, Analysis and Review

Numerical and analytical methods are applied where appropriate to improve understanding of ground behaviour and to support design and risk assessment.

GT4 undertakes modelling at both global and local scales, with analysis calibrated against available site data and observations. Modelling is used as a decision-support tool, rather than an end in itself, to help inform engineering judgement.

Risk Review and Audit

GT4 undertakes independent technical audits and risk-based reviews to support governance, assurance, and continuous improvement.

This may include benchmarking of geotechnical practices, review of design and operational controls, and independent assessment of geotechnical risk within complex project environments.

Stress Measurement

Understanding the in-situ stress regime is an important input to assessing ground behaviour, excavation stability and design. The measured three-dimensional stress state is a prime input, along with material properties, to any meaningful computer modelling analysis that may be undertaken in mining and civil engineering infrastructure projects.

GT4 undertakes stress measurement and interpretation, applying rigorous mathematical and analytical modelling to support mine design, ground support assessment, and geotechnical risk evaluation. Stress data is integrated with geological understanding, monitoring data, and engineering judgement to inform practical design decisions.

GT4 has undertaken 3D stress measurements using the digital CSIRO, 12 gauged hollow inclusion cell in mining and civil engineering underground projects, including measurements in concrete arched dams and tunnel linings.