High Strain Dynamic Pile Test
The Pile Driving Analyzer (PDA) is the most widely employed system for Dynamic Load Testing and Pile Driving Monitoring in the world. It assesses the capacity of several piles in a single day. The PDA also evaluates shaft integrity and investigates driving stresses and hammer energy during pile installation.
The driving hammer itself is used to perform PDA tests, or High Strain Dynamic Test, on pilot or production piles. If necessary, it is possible to perform re-strike PDA tests even after the driving hammer is no longer on location, by using a drop weight to impact the foundation
The PDA calculates results from velocity and force signals obtained by sensors (accelerometers and strain transducers) attached to the pile.