Geo-Congress 2020
Effect of Plastic and Silty Fines on the Behavior of Sand and Variation of Pore Water Pressure Measured at Two Different Ends of a Soil Sample
Publication: Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
ABSTRACT
This paper presents the results of an experiential investigation to study the influence of plastic and silty fines on the shear strength and porewater pressure (PWP) generation in Ottawa Sands. In order to have a better understanding of the generation and dissipation of PWP during undrained shearing, a novel PWP measurement system was designed to measure PWP at the center of a triaxial specimen. The percentage of plastic and non-plastic fines within the specimens was varied and the specimens were sheared in an undrained triaxial compression test at a constant small strain rate. Factors influencing the strength and the development of PWP (at center and end of specimens) such as relative density, skeletal void ratio, and the fines content along with their plasticity index were investigated.
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REFERENCES
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Cherrill, H.E. (1990). 1990. “Cherrill, H.E. (1990). The Influence of Loading Rate on Excess Pore Pressures in Triaxial Tests.”
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Information & Authors
Information
Published In
Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
Pages: 311 - 320
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8280-3
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
ASCE Technical Topics:
- Continuum mechanics
- Dynamics (solid mechanics)
- Engineering materials (by type)
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Materials engineering
- Plastics
- Pressure (type)
- Silt
- Soil dynamics
- Soil mechanics
- Soil pressure
- Soil properties
- Soil strength
- Soil water
- Soils (by type)
- Solid mechanics
- Synthetic materials
- Water pressure
Authors
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