Monitoring the quality of foundation piles is important to avoid unsafe conditions or collapses of the structure and/or subgrade during construction phases.
Among the various control methods that can be used for this purpose, IMG Monitoring offers instruments and services for the following selected solutions:
– PEM: Pulse Echometric Method (also called PIT: Pile Integrity Test)
– TRM: Transient Response Method
– Ultrasonic Crosshole Testing
Pale Integrity Test (PIT) is the simplest, fastest and cheapest solution. It involves measuring the reflection time of a wave generated by low-stress excitation at the top of the pile. The instrumentation used to perform the test consists of a hammer to generate the impact and an accelerometer that measures the pile’s response to the impact. Since the propagation of waves is largely influenced by ground conditions and the technology of pile construction, the PEM test (PIT) should be treated as an extemporary test that can be applied even to all foundation piles.