doi:10.3850/GI095

ABSTRACT

Two centrifuge model tests of earth platforms supported by cement-soil mixing piles were conducted. One centrifuge model is with non-uniform piles, while the other with equal length piles. A system with a pile-supported foundation of equal lengths is referred to as the conventional pile-supported earth platform while the system with non-uniform piles having dissimilar lengths is referred to as the composite pile-supported earth platform. Several miniature pore pressure transducers (PPTs) and earth pressure transducers (EPTs) were installed in each centrifuge test. The results obtained from the two centrifuge tests showed that with the same total linear meters of piles, the new type of pile-supported embankment with non-uniform piles had a less settlement at the top of the piles. Furthermore, the lateral displacements of this new type embankment were less than those of the traditional embankment.

Keywords: Embankment; non-uniform piles; centrifugal modeling.

© 2010 by Geotechnical Society of Singapore (GeoSS)