Theoretical Analysis of Non-Destructive Integrity Test in the Pile with Cap Based on Low Strain Reflected Wave Method

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Abstract:

This paper analyzes the propagation characteristics of stress wave in the cap-pile system. Based on reflected wave method, the propagation velocity-time curve of stress wave in the defective pile with cap is calculated theoretically. Then the calculation result shows that the waveform curve by theoretical analysis is consistent with the defect location and pile position, and the waveform curve well reflects the propagation characteristics of waves in the pipe with cap. Finally the theoretical analysis method is used to assist the field testing, and compared with the test result to describe the integrity status of pile.

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1447-1451

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Chen Huaxing. Pile Foundation Detection and BP Neural Network Diagnosis(Guizhou University, Guizhou 2005).

Google Scholar

[2] Cheng Cui. The Factors Influencing the Integrity detection Results of Pile Foundation Based on the Low-Strain Reflected Wave Method and Countermeasures(Dalian Maritime University, Dalian 2008).

Google Scholar

[3] Chai Huayou, Liu Minggui, Bai Shiwei, et al. Numerical analysis of wave propagation in platform-pile system. Chinese Journal of Geotechnical Engineering Vol. 25(2003), pp.624-628.

Google Scholar

[4] Han Liang. Two-velocity Analysis of Integrity for Pile Under Existed Foundation. Building Structure Vol. 37 (2007), pp.42-44.

Google Scholar

[5] Chai Huayou, Liu Minggui, Li Qi, et al. Propagation of stress waves in a plate-pile system: experimental studies. Rock and Soil Mechanics Vol. 23(2002), pp.459-464.

Google Scholar

[6] Guangdong Provincial Construction Engineering Quality and Safety Supervision and Inspection Station: Pile quality detection technology training materials firsted(China Building Industry Press, Beijing 2009).

Google Scholar