Extensively used by us on over 9000 piles on major infrastructure and real estate projects across the country. The testing is conducted using Pile Integrity Tester supplied by Pile Dynamics, Inc., USA & in accordance with ASTM D5882 & various other codes worldwide.

Principle :

The method involves generation of a low stress wave with a help of a specialized hand held hammer. The waves are then collected in acceleration form by an accelerometer and integrated to velocity for further analysis. The accelerations generated by the impact are measured by the accelerometer attached on the pile top and are converted to velocity form for display onto the collector screen. Reflections from either pile toe/pile discontinuities, cross-sectional changes, soil resistance changes, the wave speed through the pile etc., are graphically displayed. Since the strains during the test are of extremely low magnitude, the method is known as Low Strain Test method. Generally, the Pulse Echo Method is used, although we also have the facility to use other methods.

Applications & Benefits :