Role of Seismic Refraction Tomography (SRT) in bedrock mapping; case study from industrial zone, Ain-Sokhna area, Egypt

In this study, eighteen compressional P-wave seismic refraction profiles survey was conducted on the western side of Gulf Suez, Egypt, to map bedrock topography, which is vital information in foundation pole placement and design for large factory construction. The configuration consists 10 metres geophone intervals (12 24 channels) with a total length 3150 length. wave velocity distribution reveals three layers ranging from (400 1100 m/s), (1200 2000 (2200 3500 m/s). According data, first low-velocity layer represents unconsolidated Wadi sediments. second layer, other hand, comprises consolidated sediments, while third fractured intact sandstone bedrock. thickness believed be between 0.5 m, 8.5 25 m. Pseudo-3D model constructed, revealing presence several zones at depth 15 32 Then, topography non-rippable rock mass mapped utilizing 3-D model. Finally, correlation tomography (SRT) results nearby well logging dataset drilled by Egyptian Geological Survey Mining Authority (EGSMA) matched quite well. It may inferred that, up metres, there high-velocity suitable constructing deep foundations multiple levels mega factory.