Settlement Analysis of Composite Ground Improved by CFG Piles under Road Embankment

Abstract:

This paper analyzes the deformation mechanism of CFG pile composite ground under road embankment. Based on the assumed settlement model and the distribution of friction of pile, a method for settlement calculation of the interaction of pile-soil-cushion is deduced. A trial case shows that the predictions given by the derived formulas agree well with field measurements.

Key words:road embankment; CFG pile; composite ground; settlement