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Title: In situ and laboratory determinations of shear and Young's moduli for the Portsmouth, Ohio, Gaseous Diffusion Add-On Site
Authors: Soils and Pavements Laboratory (U.S.)
United States. Energy Research and Development Administration
Curro, Joseph R.
Marcuson, William F. (William Frederick)
Keywords: Field tests
Shear properties
Geophysical exploration
Soil strength
Laboratory tests
Young's modulus
Soil mechanics
Publisher: Geotechnical Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Description: Miscellaneous Paper
Abstract: A field geophysical investigation was performed to determine the shear and Young's moduli as a function of depth for a site near Portsmouth, Ohio. This investigation included crosshole, downhole, and surface refraction investigation techniques. A supplementary set of laboratory resonant column tests was performed with the Drnevich resonant column device. Laboratory undisturbed specimens were excited in both the longitudinal and torsional modes to obtain both Young's and shear moduli as a function of strain. Both laboratory and field data are presented and compared. An idealized soil profile for boring 821-UD is presented. At this boring location, bedrock lies approximately 36 ft below the ground surface. The 36-ft-thick soil deposit has been subdivided into four layers whose shear moduli range from 3.4 x 10³ to 86 x 10³ psi. The moduli increase as a function of depth. The Young's moduli for this soil profile range from 10 x 10³ to 225 x 10³ psi and also increase with depth. The internal damping of the soil deposit was found to range from 3 to 5 percent for low dynamic strain amplitudes and is constant with depth. The bedrock has a shear modulus of 125 x 10³ psi and a Young's modulus of 370 x 10³ psi.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Miscellaneous Paper

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