بناء النموذج السيزموجيولوجي للأغراض الجيوهندسية باستخدام الوصولات الأولية للأمواج الطولية : دراسة حالة

الملخص EN

The refraction seismic method was applied to investigate subsurface geological structure by analyzing recoded first arrivals of P-wave to determine the seismic velocity, and estimate thickness of weathering layer and depth of overlaid Wadi.

The velocity model was generated by using Time-term Inversion and Tomographic Inversion as alternative technique used in complicated geological structures.

Subsurface structure was determined and detailed information about horizontal and vertical variation of seismic velocity was found by using Tomogrphic inversion Method.

The calculated velocity (VP) equals to 400m/s for weathered layer and 1000m/s for second layer.

The second layer most probably consists of dry sands and the thickness of weathered layer was about (1.3-4.9m).

Comparing the results with the nearby borehole tests ensures the precision of the used method and discussion.