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Acta Geodynamica et Geomaterialia

 
Title: ASSESSING GROUND COMPACTION VIA TIME LAPSE SURFACE WAVE ANALYSIS
 
Authors: Dal Moro Giancarlo, Al-Arifi Nassir and Moustafa Sayed S. R.
 
DOI: 10.13168/AGG.2016.0006
 
Journal: Acta Geodynamica et Geomaterialia, Vol. 13, No. 3 (183), Prague 2016
 
Full Text: PDF file (1.3 MB)
 
Keywords: phase velocities, surface waves, Rayleigh waves, surface wave dispersion, ground compaction, seismic data inversion, Full Velocity Spectrum (FVS) analysis, time-lapse analysis, vibroflotation, ground compaction
 
Abstract: Through a case study, the paper presents an example of application of surface-wave analysis for the assessment of the ground compaction process accomplished in order to stabilize a harbour bank. After briefly recalling the fundamental points characterizing the adopted technique, seismic data acquired before and after the soil compaction are analyzed by means of the Full Velocity Spectrum approach and compared also with the penetrometer data commonly adopted to assess the performances of the compaction process. The results demonstrate that the analysis of surface-wave propagation represents an efficient and non-invasive tool for efficiently and reliably determining the near-surface characteristics also in a time-lapse perspective.