Geophysical Survey
Seismic Refraction Survey
P-wave refraction profiling to estimate rockhead depth and rippability along a greenfield highway alignment in central Saudi Arabia.
Seismic Refraction Survey
Scope of work
The survey supported early-stage geotechnical planning for a dual-carriageway scheme crossing wadi systems and low-relief basement highs. Spread locations were coordinated with the alignment design team and land access windows.
Scope of work included:
Spread design and offset planning for 12–24 geophone arrays with hammer and weight-drop sources.
Acquisition with continuous geometry checks and field review of first-break picks.
Tomographic and layer-cake inversion to derive depth-to-bedrock and interval velocities.
Rippability classification using published velocity–rippability correlations.
Interpretation report with longitudinal rockhead profile and recommended borehole infill locations.
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