A computational modeling for a vertical pile in soil

الملخص EN

This study presents a computational investigation for the vertical pile in soil under axisymmetric loading conditions.

A numerical pile load-testing program was carried out using finite element technique.

Linear strain quadrilateral elements were employed to model soil and pile.

The numerical model was validated against experimental load tests data for different authors.

The numerical model was then used to analyze stresses influencing the pile behavior in soil and to establish the pile failure mechanism.

The factors affecting the failure mechanism such as the pile depth and diameter, shaft relative roughness and angle of shearing resistance were studied.

The stresses and coefficient of earth pressure acting on the pile shaft were reported.

The theoretical model was developed to predict the ultimate bearing capacity of a pile in soil.

An approximate method to predict the coefficient of earth pressure acting on the pile shaft was developed and used extensively in the theoretical model.

The results concur with the recent research conclusions, which indicate that the average skin resistance tends to increase with depth.

A design procedure is proposed and verified against field test results, good agreement was achieved.

The results of the present investigation the basis for a design procedure to estimate the ultimate bearing capacity of single pile in sand.