This Thesis is a report on work that was undertaken in the investigation of two separate aspects of pile driving.
The first section of the Thesis contains an analysis of the wave propagation that occurs in the pile during impact by the hammer. The analysis considers end bearing of the pile in the soil and side friction along the sides of the pile, allowance being made for an
assumed dynamic behaviour for the soil. The analysis is conducted along formal mathematical lines, and is arranged so that the solution may be obtained by an electronic computer.
The second part of the work is a preliminary investigation into the dynamic properties of soil. It describes modifications that were found necessary for a test apparatus that had been constructed, and describes a program of tests that were conducted. The data from these tests, and an interpretation
of this data, leading to the formulation ol a working hypothesis, are then given.