Abstract:
Pile load testing is essential for evaluating performance of a foundation and for confirming design assumptions. Load tests are typically performed prior to or just before production piles are installed and can often be time consuming and delay the start of production. Dynamic load testing is a much quicker method of load testing piles, allowing for production to start sooner or for multiple piles to be tested instead of just one.
While dynamic testing was originally developed in the 1970’s for evaluation of driven piles, the method is now used in many other applications including helical piles. For 10 years, GRL has been performing dynamic load testing on helical piles of many sizes, lengths, and capacities.
This presentation will discuss the dynamic test method as applied to helical piles. Advantages and limitations of the test method are addressed and case studies are discussed. Conclusions and recommendations based on our experience are presented.