Pile Integrity Tests and Analysis
Pile Integrity Testing is performed in accordance with ASTM-5882-16.
This technique is applied by attaching a highly sensitive accelerometer to the
upper surface of the pile to be tested. The concrete surface is then struck
using a hand-held test hammer. The measured acceleration signal is then
integrated to give a velocity response in the time domain. These time-domain
responses can be interpreted to give equivalent depth information based on an
assumed pile wave speed, and may also indicate changes in cross-sectional properties.
A Pile Integrity Tester™ (PIT) processes the signals. Data is displayed on an
LCD screen and selected blows are digitized for more detailed analysis.
The Pile Integrity Tester (PIT) may be
used on most concrete or wood foundations. The PIT may also be used to test
piles integral in the structure, such as those supporting existing bridges or
towers, and may assess their length.