Ridha, Ahmed Dhya’a M.
(2013)
A Comparison Between Predicted And
Actual Performances Of An Embankment
Built Over A Stone Column Area.
Masters thesis, Universiti Sains Malaysia.
Abstract
In stone column experiences, actual settlements, consolidation times,
and other performance indicators often disagree with the predicted ones. In this
study, measurements particularly on actual settlements and consolidation times
were made on an embankment built over stone columns. The area of study,
situated at Kodiang, Kedah, as a part of the electrified double track project
between Ipoh to Padang Besar, consisted of Zone 1 and Zone 2. The embankment
over Zone 1 was 4 m thick, while that of Zone 2 was 2 m thick. The underlying
soil material was marine clay of northern region of Peninsular Malaysia. The
consolidation time allowed for embankments in the project was 45 days after
achieving top surcharge levels. The rapid gain in bearing capacity of the treated
soil and embankment stability achieved due to the improved soil were also
assessed. Other behaviors noted were change in pore pressures and lateral
displacements of soil under loads. Extensive soil investigation and instrumentation
have been carried out in the study particularly to compare between actual and
predicted behavior of the embankments. It was found that actual field settlements
were generally lesser than predicted.
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