Chapter
Apr 26, 2012
A Conceptual Model of Pile Set-Up for Driven Piles in Non-Cohesive Soil
Publication: Deep Foundations 2002: An International Perspective on Theory, Design, Construction, and Performance
Abstract
A database is presented of case histories showing long-term set-up of driven piles in non-cohesive soil, revealing that long-term set-up can be substantial — an average of 40% per log cycle of time being observed. The main results from a comprehensive study of the mechanisms behind pile set-up are presented. In the main, the study is based on pile loading tests, undertaken at different points in time, on piles instrumented with earth pressure cells on the shaft. In addition, dynamic testing and torque testing on small-scale rods were also performed at different points in time. It was concluded that pile set-up is caused by two strongly interconnected mechanisms: creep (stress relaxation) and soil aging (increasing dilation and stiffness). A conceptual model explaining the underlying process is presented.
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Copyright
© 2002 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Case studies
- Computing in civil engineering
- Databases
- Driven piles
- Dynamic tests
- Engineering fundamentals
- Foundations
- Geomechanics
- Geotechnical engineering
- Information Technology (IT)
- Laboratory tests
- Load tests
- Methodology (by type)
- Pile foundations
- Pile tests
- Piles
- Research methods (by type)
- Soil analysis
- Soil mechanics
- Soil properties
- Soil stress
- Tests (by type)
Authors
Affiliations
Senior Geotechnical Consultant Engineer, Skanska Teknik AB, SE-169 83 Solna, Sweden. E-mail: [email protected]
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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