الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Ground movements can arise from a large number of sources
and can have a significant effect on nearby piles and deep
foundations. The main effects of ground movements are the
development of additional lateral displacement and bending
moments in the piles.
In this research an approach similar to that described in Poulos and
Chen (1997) is followed.
The main features of the pile response are discussed for three
specific problems involving ground movements: piles near strutted
wall excavation, piles near cantilever (unstrutted) wall excavation
and piles near earth-fill embankment.
The analyses were made using the finite element program Plaxis. In
a first stage, the lateral soil movement is studied for the three
problems in the absence of the pile to evaluate the lateral movement
pattern. Charts are derived for typical clay soil with different
undrained shear strength and at different distances from the source
of the lateral movement. In a second stage, key factors influencing
the response of a single pile such as excavation depth or
embankment height, excavation support conditions, soil properties,
and pile properties were studied.
A simplified approach similar to that of Poulos and Chen 1997
(developed for strutted and unstrutted wall excavation) was adopted
for the three stated problems to evaluate the pile response. Based on
this approach and the parametric studies the Maximum pile bending
moment and lateral deflection are deduced for typical clay soils.
For practical applications where lateral soil movement is of
concern, the pile response can be evaluated for the different studied
problems using simple formulae and a number of design charts.