Chapter
May 16, 2012
Current Research on Dynamic Shear Behavior of Geosynthetic Clay Liners
Authors: P. J. Fox and J. T. OlstaAuthor Affiliations
Publication: Geosynthetics Research and Development in Progress
Abstract
A research program is described for measurement of the shear behavior of geosynthetic clay liners (GCLs) and GCL interfaces under dynamic loading conditions. A state-of-the-art, large-scale dynamic direct shear machine is currently being constructed for the project that has the capability to test rectangular GCL specimens measuring 0.3 x 1.1 m (12 x 42 in.). The device has a maximum shear displacement of 254 mm (10 in.), a maximum normal stress of 2,400 kPa (50,000 psf), a maximum shear stress of 750 kPa (15,700 psf), and the capability to impart sinusoidal shearing with a displacement amplitude of 25 mm (1.0 in.) at a frequency of 5 Hz. This paper describes the objectives of the research program, the equipment under construction, and the dynamic shearing tests to be conducted.
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© 2005 American Society of Civil Engineering.
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Published online: May 16, 2012
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P. J. Fox
The Ohio State University, Department of Civil & Environmental Engineering & Geodetic Science, Columbus, OH 43210
J. T. Olsta
CETCO, 1500 W. Shure Dr., Arlington Heights, IL 60004
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