الفهرس 
LITERATURE REVIEWOnly 14 pages are availabe for public view
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Abstract
Modeling of the retaining wall subjected to external point load is a topic of
great interest for geotechnical engineers. The reliable prediction of the retaining
wall behavior under the effect of point load, are very important to achieve a safe
and economic design. Most of the researchers have studied the effect of the
external load on the excavation supporting system without taking into
consideration the backfill properties. The backfill properties have a great effect
on the retaining wall behavior.
ill this research, a new attempt is conducted to a handle a three dimensional
analysis of the effect of point load on cantilever retaining wall The study is
conducted using an experimental model as well as a nwnerical model. The
experimental model has been designed and conducted to study the effect of point
load footing locations on the adjacent retaining wall.
Moreover, a finite element computer model (ANSYS) has been prepared to
estimate the horizontal displacement as well as the bending moment of the
retaining waU under the effect of the point load. Drucker-Prager model is used to
represent the soil plasticity. lnterface elements are used to model the interaction
between the soil and the retaining wall.
Several parameters have been taken into consideration in this study such as
the sand density, and distance from the foundation center to the cantilever
retaining wall.
The capability of the program to simulate the behavior of the cantilever
retaining wall is verified by comparing the program results with the results of
previous numerical cases. Good matching is obtained in different cases. Also In this research the boundary limits of the numerical model that if being
exceeded the results will not be affected are discussed. Therefore, the numerical model boundary limits are different from those used in the previous computer
model. According to this modified numerical computer model a parametric study
for the different soil density and different point load locations has been presented.
The retaining wall behavior is estimated in terms of horizontal displacement and
the associated bending moment. This bending moment is estimated in transverse
and longitudinal directions. The results of the studied cases are presented in the
form of graphs, to guide the engineers in the practical design of the retaining
wall.