الفهرس 
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Abstract
Slope stability is one of the most important problems in geotechnical
gineering because failure could cause catastrophic environmental and human
isaster, in addition to large economical losses due to such failure. Slope stabilizing
iles are one of the most widely used techniques to stabilize slopes and to increase the
ope safety factor. These piles are mainly subjected to lateral pressure from the
rizontal movement caused by the sliding soil mass.
The purpose ’Of this research is to investigate the effect of stabilizing piles on
ft clayey slopes which contain weak layers such as peat layers introducing a
cumented case history of the embankments of Al-Salam canal in Northern Egypt.
e analysis of the embankment is performed by the finite element program (phase2).
e main factors which affect the slopes stabilized with piles is also presented and
iscussed. Although the piles succeeded in increasing the slope safety factor, this
bilizing method could not increase the safety factor enough to reach the desired
lue. The results also indicated that increasing the number of pile rows is not
ective in further increasing the safety factor in return. Another slope stabilizing
hnique is studied herein using lime treatment. The proposed lime treatment was
ective in stabilizing the slope more than the slope stabilizing piles, and even in the
nes containing the peat layer.
IT