A Check on Scaling Laws for Physical Modelling of Geotechnical Freeze-Thaw Effects Using the Centrifuge.
Abstract
Experimental data collected support the theorized scaling laws that predict that frost heave and thaw settlement in soil developing over one winter can be physically simulated over a matter of hours by freezing and thawing soil while rotating it on the arm of a geotechnical centrifuge. Different soils, ground water levels, and temperature regimes have been physically modelled at different scales. Comparison of an existing Army numerical model of heave in simple soil profiles has shown physical model results to be valuable to calibrate these numerical models for surface heave in silt, but to be less useful for clayey soil. Frost penetration, in contrast, is not predicted well. Tests simulating heave and settlement developing over several years of freezing and thawing, both with and without a buried element have also been conducted.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1996
- Accession Number
- ADA322864
Entities
People
- Deborah J. Goodings
Organizations
- University of Maryland