Once again, AGES is providing the cutting-edge technology in the most affordable and reliable manner - measure in-situ shear wave velocity (Vs) in a borehole. The Downhole Shear Wave Test (DSWT) is necessary in basic site characterization and determination of soil profile types for earthquake design, in accordance with the provisions of Section 208.4 of the NSCP, 2001.
Shear-wave velocity profiles are quickly obtained from downhole surveys providing invaluable information on the stratigraphy and dynamic properties of the soils, otherwise not obtainable from surface seismic surveys.
Designers do not have to second-guess the soil dynamic characteristics, and do not have to assume conservative minimum code requirements, as this usually translates to expensive design. The shear wave velocity profiles provide clear site characterization, and if necessary, the information can be used for a more accurate site specific earthquake response spectrum evaluation. This will optimize safety, project cost and more savings benefits to Owners.