Integration of Geophysical Methods for Doline Hazard Assessment: A Case Study from Northern Oman

Subsurface formations with low compaction, often, due to the presence of underlying cavities, are potential sources hazards. Thus, understanding occurrence, properties, and extension these weak zones poses a major concern in engineering geophysics. In this study, we examine ability geophysical methods map areas over carbonates Northern Oman. The known cause surface depression many areas. examined involve Ground-Penetrating Radar (GPR), Seismic Refraction Tomography (SRT), Electrical Resistivity (ERT). This integrated survey was conducted near Bimmah sinkhole, Quriya area, covers both an area ground truth (low compaction sediments overlaying cave) part unknown subsurface properties. GPR velocity analysis using selected diffraction’s fitting helped identify high-velocity anomalies that were attributed cavity. interpretation calibrated SRT ERT. former showed clear drop P-wave ray coverage at cavity zone, while latter demonstrated high resistivity caused by air filling scope response, especially GPR, utilize results preliminary approach for wider exploration investigation area. from study indicated is capable serve as pioneer method detecting cavities. Hence, will cover large site other two be used complementary final conditions’ evaluation.