P and S-Waves
Evaluation For Engineering Site Investigation At A
Hostel Complex Inside Basrah University, Southern Iraq
Salman Z.
Khorshid 1, Emad H.
AL-Khersan2, and Ali Z.
AL-kashan2
1Department
of Geology,
College of Science,
Baghdad
University
2Department
of Geology,
College of Science,
Basrah
University
Email:
emgeoph@yahoo.com
Abstract
The area understudy was surveyed using seismic
refraction techniques as an available tool for
engineering purposes. Eight seismic profiles for
either P and S-waves had been chosen and carried out
by the use of five impacts (center, normal, reverse,
between geophones 6-7 and 18-19), in
order to delineate
layers thicknesses and depth of water table
underlying such a hostel complex site inside Basrah
University, southern Iraq. Dynamic elastic modulii
were also calculated depending upon the velocities
of
P and S-waves of these layers and its densities.
Accordingly, three shallow subsurface soil layers
were found. Their mean thicknesses are ranged
between (2.15-2.45) m, (17.65-18.4) m below ground
surface for the top and first layers respectively.
On the other hand, mean water table seems to be at
(2.3) m depth and the mean dynamic elastic constants
are ranged between {κ= (0.194-7.352×103)
Mpa,
μ= (0.145-2.994×103)
Mpa,
E= (0.364-7.385×103)
Mpa,
λ=
(0.092-5.764×103)
Mpa, and,
σ= (0.19-0.35)}.
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