الفهرس 
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Abstract
The present study aims to use Seismic refraction and Multichannel Analysis of
Surface Waves (MASW) methods for evaluating the subsurface physical,
mechanical, elastic, and geotechnical conditions and develop the essential
criteria required for the design and the construction of some proposed structures.
The area under investigation consists of two different sites at the escarpment of
Ataqa mountain in Ataqa Industrial Area, Suez. Seismic refraction and
Multichannel Analysis of Surface Waves (MASW) methods are applied to
measure the primary and the secondary wave velocities respectively. The
measured seismic velocities are utilized to calculate physical parameters such as
the bulk density (ρ), the porosity (ɸ), and void ratio (e), elastic moduli such as
Poisson’s ratio, bulk’s modulus, shear modulus, and Young’s modulus of the
subsurface materials. Some geomechanical parameters are also calculated such
as the uniaxial compressive strength (UCS), and the ultimate tensile strength
(UTS). In addition to that, other geomechanical parameters are calculated such
as the rippability, the SPT(N value) and the competence scales. Finally, the
ultimate and allowable bearing capacities are calculated. All these parameters are
used to evaluate the suitability of the subsurface for construction activities.