Effect of Variation in Conventional Soil Properties on Dynamic Constrained Modulus for Several Glacial Tills.
Final miscellaneous paper rept. Jul 70-Nov 72,
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
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The report presents the results of an effort to analyze and correlate data from tills to determine if the dynamic constitutive relations needed for ground shock code input are predictable from simple index and seismic tests. Data from glacial tills at seven sites in the northern United States were used successfully to correlate secant constrained moduli with percent saturation and percent air in a unit volume of soil. These correlations indicated trends distinctive enough to use either of the correlations to approximately predict, for a till, the loading portion of the UX stress-strain curve to a stress of about 500 psi. For the tills investigated in this study, dry density, UU strength, and Youngs modulus taken from the static UU stress-strain curve cannot generally be used to predict the secant constrained moduli to the stress levels of interest. Modified author abstract
- Soil Mechanics