Prediction of residual driving stresses in piles

Abstract

Residual driving stresses in piles are determined with a new stress-wave program. The program has some interesting features, such as the displacement stabilization accomplished by an analysis for a longer time, until zeroing particle velocity at the pile toe. A parametric study of the development of residual stresses in a steel pile shows interesting aspects related to the effects of toe resistance, shaft friction resistance distribution, and driving energy. A comparison is made between the application of available solutions and the new program.Key words: residual stresses, pile driving, foundation, analysis.