Low Strain Dynamic Pile Testing/ Pile Integrity Testing (PIT) –ASTM D5882
It is a quick, non-destructive test to check the integrity of the pile shaft. A low-strain compressive stress wave is generated by an impact using a hand-held hammer (either regular or instrumented) of weights ranging from 0.5 to 4.0 kg, depending on the geometry and length of the pile.
The stress wave thus generated is recorded as force and velocity as a function of time using the Pile Integrity Tester (by PDI Inc. USA). The recorded force and velocity curves are interpreted for pile shaft integrity and length. The data recorded can be further analyzed using PIT-W software (by PDI Inc. USA) by performing necessary filters and data adjustments for better toe interpretation. Profile analysis shall be performed to arrive at the pile profile.
An experienced PDCA/PDI certified geotechnical engineer with extensive knowledge of wave theory can interpret the data and raise concerns about pile defects/damage, if any. SGES will mobilize an experienced team of engineers/technicians on every project.
Usually, 100% of the piles will be tested for integrity, providing quality control for the installed pile
SGES Experience/Credentials:
- 2000+ bored cast-in-situ piles
- More than 20 PDCA/PDI certified engineers with Advanced and Expert Rating
- Rich knowledge of hammer selection and data processing to identify the toe reflection and anomalies
- Profile analysis to estimate the pile shape.
