Chapter
Jun 20, 2012
The Role of Soil Compressibility in Centrifuge Model Tests of Piles Foundation Undergoing Lateral Spreading of Liquefied Soil
Authors: Marcelo González [email protected], Javier Ubilla [email protected], Tarek Abdoun [email protected], and Ricardo Dobry [email protected]Author Affiliations
Publication: Geotechnical Earthquake Engineering and Soil Dynamics IV
Abstract
Two centrifuge model tests at 40g level were examined in order to evaluate the use of particle size reduction as an alternative method to construct centrifuge model tests of a pile foundation undergoing lateral spreading of liquefied soil. The main difference between both tests was the method used to match the prototype permeability coefficient: (1) viscous pore fluid instead of water and (2) reduction of the particle size while using water as pore fluid. The two soils were placed at the same relative density, which resulted in two very different soil compressibilities and different model responses. Other centrifuge tests reported elsewhere (Gonzalez M., 2007), indicate that when compressibility rather than relative density is matched, particle size reduction produces the correct soil and pile response that agrees. Therefore, both permeability and compressibility need to be matched when using the particle size reduction technique.
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© 2008 American Society of Civil Engineers.
History
Published online: Jun 20, 2012
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ASCE Technical Topics:
- Centrifuge models
- Earth materials
- Engineering fundamentals
- Foundations
- Geomaterials
- Geomechanics
- Geotechnical engineering
- Models (by type)
- Particle size distribution
- Pile foundations
- Pile tests
- Soil compression
- Soil dynamics
- Soil liquefaction
- Soil mechanics
- Soil properties
- Soil tests
- Spread foundations
- Tests (by type)
Authors
Affiliations
S.M.ASCE
Graduate student, RPI, 110 8th Street, Troy, NY, 12180. E-mail: [email protected]
S.M.ASCE
Graduate student, RPI, 110 8th Street, Troy, NY, 12180. E-mail: [email protected]
Associate Professor and Associate Director, NEES-NSF Geotechnical Centrifuge Research Center, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, 12180. E-mail: [email protected]
Professor and Director, NEES-NSF Geotechnical Centrifuge Research Center, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, 12180. E-mail: [email protected]
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