Chapter
Apr 26, 2012
Soil Parameter Evaluation from Hybrid In Situ Penetration-Geophysics Testing
Publication: GeoFlorida 2010: Advances in Analysis, Modeling & Design
Abstract
Hybrid in-situ penetration-geophysics tests offer an optimal and efficient means for geotechnical site characterization, including geostratigraphy and the interpretation of soil engineering parameters. Specifically, the seismic piezocone penetration test (SCPTù) provides up to 5 independent readings with depth in the same sounding: qt, fs, u2, t50, and Vs; as does the companion seismic flat dilatometer test (SDMT): p0, p1, p2, tflex, and Vs. The continuous readings of the cone penetrometer (1-cm readings) and near-continuous readings of the dilatometer (at 20-cm intervals) provide detailed layering, strata changes, and detection of lenses and weak zones in the subsurface profile, as well as provide a suite of geotechnical parameters towards the quantification of soil type, strength, stress history, stiffness, and permeability.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Geosystems Engineering Group, School of Civil & Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Drive, Mason Building, Atlanta, GA 30332-0355 USA. E-mail: [email protected]
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