Abstract
The objective of this study was the evaluation of quality VS models generated by refraction microtremor method (ReMi) testing 3 differents seismic sources (1 passive and 2 active ones), and its comparison with VP models generated by seismic refraction tomography, in the geotechnical site characterization of a flood plain where 2 borehole and 12 test‐pits had been done in a previous geotechnical study. Nine seismic profiles were deployed with different reciever spacing (60 geophones of 10 Hz spaced 2, 1 and 0.5 meters). In each of the lines we acquired data from ambiental noise and sledgehammer hits at the beginning and the end of the seismic line to model 3 VS profiles and one seismic refraction profile to model VP data. The ReMi and seismic refraction methods gave us good results. On the whole, both VP and VS models allowed a complete geotechnical characterization of the flood plain. All the geophysical models were compared with the geological data profiles from boreholes and test‐pits and permitted a 3‐D overview of the study site.
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