The Service
The Foundation of
Sound Engineering
A well-designed geotechnical investigation is the single most important investment you can make before breaking ground. PGI Geotechnical Group plans and executes comprehensive subsurface investigation programs across North Queensland, providing the critical ground data that structural engineers, civil designers and project managers depend on to make sound decisions.
Our investigations follow a staged approach — beginning with a thorough review of existing geological mapping and available borehole records before designing a field program precisely calibrated to your project's scale, risk profile and budget. We manage the entire process from borehole drilling and test pit excavation through to laboratory testing, data interpretation and geotechnical report preparation.
North Queensland's geology is highly variable — from the soft alluvial and estuarine deposits of the Townsville coastal plain to the deeply weathered granite and metamorphic terrains of the inland ranges and the ancient sedimentary sequences of the Mount Isa Inlier. More than a decade of continuous field work across this entire region gives PGI an unmatched knowledge base that translates directly into more efficient, more accurate investigation programs for your project.
Key Deliverables
- Borehole drilling supervision & logging
- Test pit excavation & classification
- SPT (Standard Penetration Test) programs
- Undisturbed sampling for laboratory testing
- Groundwater monitoring & level recording
- Subsurface geological modelling
- Foundation design parameters
- Geotechnical investigation reports
When You Need It
Is a Geotechnical Investigation
Right for Your Project?
Commercial, Industrial & Multi-Storey
You're proposing a significant building — a commercial facility, industrial shed, multi-storey apartment or retail centre — and your structural engineer needs certified ground data before designing the foundations.
Bridges, Roads & Civil Works
Your project involves a bridge abutment, road embankment, retaining structure or underground utility where ground conditions will govern both the design approach and construction methodology.
Land Acquisition & Feasibility
You're acquiring a site for development and need to understand the underlying ground conditions — including problem soils, rock depths and groundwater — before committing to purchase or detailed design.