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25 August 2026

Pile Length Testing: Choosing the Right Investigation Method

GBG Group uses geophysical testing methods to estimate existing pile lengths where construction records are incomplete or require verification.
19 August 2026

Borehole Geophysics vs Logging: What’s the Difference?

Explore the differences between borehole geophysics and borehole logging, including key methods, applications and how they support subsurface investigations.
30 July 2026

When Is Non-Destructive Testing (NDT) Used in Structural and Infrastructure Investigations?

Understanding how NDT techniques such as GPR, ultrasonic testing and acoustic methods help evaluate as-built design and structural integrity without…

4,000+ Projects Across Australia and Asia-Pacific

Our experienced geophysical survey specialists work closely with engineers and project teams to design investigation strategies tailored to site conditions, risk profiles and engineering objectives. Speak directly with a geophysicist to discuss your project.

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