Abstract:
The reliable prediction settlement of pile foundation at typical working load
remains one of the major geotechnical engineering problems. In this research, settlement
behaviour of a pile foundation located in sandy-silt, under the loads from high-rised building
is simulated in 2D using a finite element program (PLAXIS). Three different types of analysis
were investigated: a linear elastic (LE) analysis where the soil was assumed as linear-elastic
material, a simple nonlinear analysis where the soil was completely assumed as Mohr-
coulomb (MC) model and an advanced nonlinear analysis where the soil was completely
assumed as Hardening-Soil (HS) model. A comparison was done between the predicted
settlement from Finite element analysis and field settlement values. Based on the results of
analysis, it is suggested that although complete MC model shows good agreement with the
settlement behaviour obtained from field static load test at lower working loads, MC model
is not adequate to capture the settlement prediction at higher working loads. In addition,
modelling the soil completely using HS model is required to capture the safe settlement
prediction at higher working loads. Finally, this scenario can be applied for the similar
problems in settlement prediction using numerical methods.
