RATIONAL WAVE EQUATION MODEL FOR PILE-DRIVING ANALYSIS.

Abstract

A one-dimensional wave equation model for pile-driving analysis is presented. In this model, the pile is represented by discrete elements, while the soil is represented by a series of springs and dashpots, the coefficients of which are derived using elasto-dynamic theory. The capability of the proposed model is demonstrated by comparison with field data of two instrumented piles. The analyses include predictions of set, and driving stresses at various levels of the piles. Comparisons are made with the sets and driving stresses predicted by the E. A. L. Smith model. From the analyses by the proposed model and load test results, estimations of soil setup for the two piles are also presented.