Chapter
Jun 20, 2012
Liquefaction Resistance Recovered From "On-the-Fly" CPTu-Measured Pore Pressures
Authors: Michael Fitzgerald and Derek ElsworthAuthor Affiliations
Publication: Geotechnical Earthquake Engineering and Soil Dynamics IV
Abstract
The liquefaction resistance of soils has been noted to be influenced by fines content. At present piezocone measurements are not capable of providing accurate predictions of fines content and are therefore open to uncertainty. The work presented herein, extends previous analyses of liquefaction resistance and develops the framework for prediction of liquefaction resistance through the CPT recovered parameter of excess pore pressure (u2) measured in flight. The main driving force behind liquefaction is the build-up of excess pore pressure in the soil structure; therefore the use of the piezocone measured excess pore pressure is a preferred variable to fines content in the analysis of liquefaction resistance.
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© 2008 American Society of Civil Engineers.
History
Published online: Jun 20, 2012
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ASCE Technical Topics:
- Continuum mechanics
- Design (by type)
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Load and resistance factor design
- Load factors
- Measurement (by type)
- Motion (dynamics)
- Pore pressure
- Pressure (type)
- Pressure measurement
- Soil analysis
- Soil dynamics
- Soil liquefaction
- Soil mechanics
- Soil pressure
- Soil properties
- Soil structures
- Solid mechanics
- Structural design
- Structural engineering
- Structures (by type)
- Uncertainty principles
Authors
Affiliations
Michael Fitzgerald
110 Hosler Bldg. University Park, PA 16802. Department of Energy and Mineral Engineering, The Pennsylvania State University, University Park, PA
Derek Elsworth
110 Hosler Bldg. University Park, PA 16802. Department of Energy and Mineral Engineering, The Pennsylvania State University, University Park, PA
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