Integrity Testing of Individual Model Piles

Autor: Bai-Hong Yu, 余柏宏
Rok vydání: 2006
Druh dokumentu: 學位論文 ; thesis
Popis: 94
Using non-destructive testing (NDT) methods to evaluate the integrity and quality of newly-built piles is a mature technique and is adopted as a standard procedure by many countries. However, many difficulties have been encountered in applying these kind of techniques into evaluating the integrity of existing piles. The dominant factors include the effects of pile caps, pile group and superstructures. However, the NDT techniques such as the Sonic Echo, Impulse Response, Ultra Seismic and the Parallel Seismic methods have the advantages of being convenient, economical, and efficient. They can be used as the front line testing means once the related researches are matured. The main objective of this research is to investigate the feasibility of applying non-destructive testing techniques in evaluating the integrity of piles. Model piles with artificial detects were constructed and tested with impact hammer of various sizes and different tip materials. The ability of NDT technigues such as Sonic Echo, Impulse Response, Ultra Seismic, and Parallel Seismic methods in detecting these defects were compared in this thesis.
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