Better Soil Freezing Model May Help Reduce Infrastructure Damage: Research Spotlight
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2015-09-01
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Abstract:When ice forms in soil, it can cause frost heave, where the ground swells upward. Frost heave, and the subsequent settlement during thaw, can cause premature damage to pavements and other transportation infrastructure. While design processes such as increased subbase thickness and partial removal of frost critical subgrade soils can mitigate the impact of frost heave, effective application of these measures requires an understanding of how often frost heave cycles below the pavement. This information is critical in determining when seasonal load restrictions (SLRs) should be enacted.
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