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Title: Monitoring ground anchor using non-destructive ground anchor integrity test (NDT-GRANIT)

Monitoring at ground anchor commonly uses a pull out test method, therefor we developing a non-destructive ground anchor integrity testing (NDT-GRANIT). NDT-GRANIT using the principle of seismic waves that have been modified into form of sweep signal, the signal will be demodulated, filtered, and Fourier transformation (inverse discrete Fourier transform) so the data can be interpreted reflected wave from the ground anchor. The method was applied to determine whether the ground anchor still gripped in the subsurface by looking the attenuation of the wave generated sources. From the result we can see that ground anchor does not grip. To validate the results of the comparison method of measurement used pile integrity test.
Authors:
;  [1]
  1. Earth Physics and Complex System Laboratory, Department of Physics, Institut Teknologi Bandung, Ganesha 10 Bandung, Indonesia 40132 (Indonesia)
Publication Date:
OSTI Identifier:
22488922
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1677; Journal Issue: 1; Conference: 5. international conference on mathematics and natural sciences, Bandung (Indonesia), 2-3 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANCHORS; ATTENUATION; COMPARATIVE EVALUATIONS; FILTERS; FOURIER TRANSFORMATION; MONITORING; SEISMIC WAVES; SIGNALS; TESTING