Investigations into the Uplift of Skirted Foundations on Clay at Varying Rates
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 150, Issue 2
Abstract
This paper presents finite-element simulations to reinterpret a series of full-model and particle image velocimetry (PIV) (half model) centrifuge tests to study the uplift of skirted foundations. The focus is on the influence of uplift rate on the uplift capacity and the mechanism of breakaway (i.e., the phenomenon of sudden loss of uplift resistance). A backbone curve, quantifying the uplift rate-capacity relationship, is established for uplift based on the numerical and experimental results. The dimensionless velocities and 130 are found to be the boundaries for drained, partially drained, and undrained conditions. The breakaway is found related to ambient water infiltration. In the numerical modeling, the remaining length of the skirt inside soil is used as an indicator for breakaway, i.e., breakaway happens when this length is smaller than a critical value. This hypothesis is demonstrated to be effective by comparing the numerical modeling with the experimental results.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research was undertaken with support from the Australia Research Council Discovery Projects DP190103315 and DP180103314 and the second author’s ARC Future Fellowship FT200100457. Dr. Xiaojun Li (former Ph.D. student at UWA) is acknowledged for his support and discussion of the centrifuge tests he carried out during his study.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 150 • Issue 2 • February 2024
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Nov 23, 2022
Accepted: Oct 4, 2023
Published online: Dec 6, 2023
Published in print: Feb 1, 2024
Discussion open until: May 6, 2024
ASCE Technical Topics:
- Centrifuge models
- Clays
- Drainage
- Engineering fundamentals
- Engineering materials (by type)
- Finite element method
- Foundations
- Geomechanics
- Geotechnical engineering
- Irrigation engineering
- Materials engineering
- Methodology (by type)
- Models (by type)
- Numerical methods
- Numerical models
- Particles
- Soil dynamics
- Soil mechanics
- Soils (by type)
- Uplifting behavior
- Water and water resources
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