Laboratory and field measurements of the small-strain shear modulus of a Piedmont residual soil were compared to gain a better understanding of mechanisms affecting stiffness. Resonant column tests were performed to study influences of void ratio, overconsolidation ...

For this research effort, in-situ penetration tests have been performed at a number of test sites in the heart of the Mid America earthquake regions. Testing areas include Charleston SC, Memphis TN, West Memphis AR, Blytheville AR, Steele MO, and Caruthersville, ...