OpenGrey (Institut de l'Information Scientifique et Technique) · 1997 · 33 citations · 0 references
EngineeringCivil EngineeringConstruction ManagementAcousticsGeotechnical EngineeringSoil MechanicsAcoustic LoggingIn-situ TestingIntegrity TestingNon-destructive EvaluationSonic LoggingVibration TestingAcoustic Performance TestingFrequency Response TestingFrequency-domain TestingNatural Frequency TestingPile Integrity TestingPile Load TestingUltrasonic Testing
This report explains the basic principles and methods of the several techniques of pile integrity testing, in particular the low-strain acoustic methods of echo and frequency-response testing and cross-hole sonic logging. These methods and their use are set out in the context of the contractual situations in which they are used as a means of confirming that piles have been satisfactorily constructed and installed. Recommendations are made: for the integration of control testing by these methods into the contractual framework of responsibilities and programmes; for the reporting of the test results and their interpretation; and for the application of test methods to different types of pile and circumstances. There is an overview of possible pile defects and of the many options for testing piles, whether by direct means such as load tests, or indirectly by different types of investigation. (A)