Abstract: The ultimate side friction, ultimate tip resistance and the unconfined compressive strength of the rock cores are usually provided in a typical geotechnical investigation report for the estimating of the theoretical axial pile capacity. The high strain dynamic loading test is used to determine the axial compressive capacity and the pile integrity of a single pile through wave theory. The static loading test is a compressive test conducted on piles in accordance with the design requirements. Based on the tests, the axial capacity of a single pile is obtained, and the ultimate side resistance of each soil layer around the pile is measured and calculated through strain measuring elements embedded at various locations along the shaft of the pile. The article compares and analyzes the recommended value of the ultimate axial capacity of a single pile estimated based on the theoretical data provided in the geotechnical investigation report and the actual value obtained from the test pile, based on the bored pile test in a coastal engineering project, and puts forward reasonable suggestions for pile foundation design.

Key words: Geotechnical Investigation Report, High Strain Testing, Static Loading Test, Bored CastinPlace Piles, Axial Capacity