This Lecture 91 in series of my KZitem Channel “Geotechnical Engineering Consultancy Tips” explains about Pile Integrity Testing by PIT which is a Non-Destructive Integrity Test Method for foundation piles. It actually is a “Low Strain” Test Method (as it requires the impact of only a small hand-held hammer) to evaluate pile integrity and/or pile length for its Quality Assurance. It is done either as per Pulse-Echo (Sonic Echo - a time domain analysis) Method or as per Transient Response (frequency domain analysis) Procedure. It also describes and discusses about the Description of Test Method, Test Equipment, Test Personnel, Test Preparation, Result Presentation, Depiction of Test Graph Results in the form of velocity signal versus pile length, as well, what does PIT do? Limitations of PIT, Summary and Recommendations of Pile Integrity Test Report, Acceptance and Rejection of Pile Integrity Test Results and Remedial Actions suggested for failed/rejected or questionable Piles.
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