Nonlinear Settlement Prediction of Axially Loaded Pile Group Using Load-Transfer Method

An investigation of the nonlinear settlement of axially loaded pile groups using a novel load-transfer method is presented in this paper. The exponential model and slippage are adopted to describe the relationship between shear resistance and displacement at the pile shaft. The exponential model also selects to represent the response at the pile tip. The reaction of a single axially loaded is first determined. Then, the performance of the axially loaded pile is investigated using the single pile response combined with pile-soil-pile interaction. The verification of the proposed load-transfer method is implemented with field test data. The comparison shows a well-agreement between nonlinear prediction settlements and those obtained from monitored data.