الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In this thesis, SEEP2D and SEEP/W numerical models are
implemented to model seepage through earth dams with internal
cores. In order to evaluate the two models’ performance, they
were compared in cases with no core, vertical core, and wedgeshaped
core.
SEEP/W
was
then
used
to
study
further
cases
due
to
its
accuracy
in
drawing
the
phreatic
line
within
the
core
zone.
The
effect of the core’s characteristics on the amount of
discharge, and the phreatic line’s levels at the core’s upstream
and downstream faces were investigated. Four core types –
vertical, wedge-shaped, upstream inclined, and downstream
inclined – were considered. Different hydraulic conductivities,
upper widths, and core slopes were also evaluated. The wedgeshaped
core is the most effective of those investigated in
reducing seepage discharge and the phreatic line’s level at the
core’s downstream face, the vertical core came second. Design
equations are provided for all the core shapes considered in the
study.