A Numerical Analysis on the Behavior of End-Bearing Pile for Supporting Embankment over Soft Soils
Piled embankments are increasingly used to construct highways on soft soils. End-bearing piles for supporting embankment exhibit different characteristics for the soil arch developed within the embankments. A numerical analysis was conducted to evaluate the soil stress concentration ratio, pile and soil settlements, pile axial force, negative skin friction (NSF) and location of the neutral plane (NP) during embankment filling and consolidation of soft soils. The results indicate that the stress concentration ratio varies with time and most of the embankment load is born by the pile. The soil pressure on the soft soils increase and reach a maximum value during the filling, then decrease gradually and maintain nearly a constant value at the end of the consolidation. The settlement of shallow soft soils differs significantly from that of the deep soft soils. The location of the NP shows a complicated variation.
Brendan Gan, Yu Gan and Y. Yu
W. P. Cao et al., "A Numerical Analysis on the Behavior of End-Bearing Pile for Supporting Embankment over Soft Soils", Advanced Materials Research, Vols. 378-379, pp. 502-506, 2012