Much of the agreement and non-agreement in such papers is due to that many of the comparisons include mistakes and a few sources of such are illustrated and explained. A case of over reliance on blow-count is presented.

The advent of the wave equation analysis during the 1960s through the 1970s was a quantum leap in modern foundation engineering. For the first time, the full complex of pile driving could be considered, that is, velocity dependent aspects (damping), soil deformation ...

The wave equation analysis of driven piles is presented with a comparison of the Smith and Case damping approach and a discussion of conventional soil input parameters.<br>