The Study of the Quantity of Wave Speed in Low Strain Integrity Testing of Foundation Pile

Abstract:

the stress wave speed is the necessary condition to make sure pile length and pile defects position in low strain integrity testing of foundation pile with the stress wave echo method. Quantifying the stress wave speed is very difficult, because it is affected by multi- factors. This has been choke point developing test technology of foundation pile. In the paper, some factors influencing the stress wave speed were analyzed according to stress wave theory and experiment results, the quantity relations of the stress wave speed in pile and time and concrete age were made sure. lastly, five brief methods to quantifying the stress wave speed in pile were presented to control pile quality for test engineers according engineering practice.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 77-82
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.77
• Online since: May 2012
• Authors: Si Yi Du, De Peng Li, Yi Han Chen
• Keywords: Foundation Pile, Low Strain Integrity Testing, Pile Integrity, Stress Wave Speed

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