High capacity dynamic load tests for bored piles in Sydney shale

摘要

The installation of bored piles is undergoing some scrutiny with respect to acceptable parameters to be used in the design for shaft resistance and end bearing. A dynamic test pile program was designed for several shallow bored piles socketed into Sydney shale. A twenty (20) tonne drop hammer was used for the dynamic testing. The results were compared to locally accepted design parameters with the test results indicating a significant saving to be made with the adoption of the test pile results.