Case Study I

Sharper Subsurface Insight with High-Resolution Resistivity Imaging

Why High-Resolution ERT? When engineering decisions depend on exact layer boundaries, conventional resistivity inversions can blur stratigraphy and drift away from borehole ground truth. In this riverbank protection dike project in Khon Kaen, High-Resolution processing produced a clearer model that aligned with borehole-defined interfaces and improved confidence in estimating the depth to very dense sand.

• • Side-by-side comparison: conventional vs. High-Resolution inversion
• • How a 23 ohm·m boundary tracks the clay–dense sand interface
• • What changes between chainage 0+150 and 0+200—and why it matters