As is typically the case with smaller scale retaining structures projects the Site Investigation report rarely contains critical/peak Phi angles for the soils encountered, leaving the engineer to use design values of phi in accordance with correlations between plasticity for cohesive materials...
In my brief experience of driven pile design to date, it is clear that installation of driven piles in accordance with typical dynamic set calculations is regarded as a poor substitute to static design techniques. Many driven pile design calculation packages seem to include both a static design...