36 lines
1.7 KiB
Markdown
36 lines
1.7 KiB
Markdown
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date = "2015-06-21T12:19:11-08:00"
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draft = false
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title = "MRD Civil Engineering Thesis Info"
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aliases = [
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"/pages/mrd-ce-ms/index.html"
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]
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### Abstract
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> Frost heave is typically associated with the formation of segregation ice in
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> fine-grained soil. Coarse-grained soil is generally considered to be non-frost
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> susceptible. Field observations and laboratory experiments show that
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> coarse-grained soil can be extremely ice-rich in specific conditions. Previous
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> studies have shown that oscillation of the frozen-unfrozen boundary can lead to
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> the formation of ice by a mechanism different from the segregation ice
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> mechanism. Conditions related to the formation of ice in coarse-grained soil
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> were investigated using modern laboratory techniques. Fourteen tests were
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> conducted on five soil types. The thickness of soil subjected to freeze-thaw
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> cycles was varied and controlled by the magnitude and duration of applied soil
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> temperatures. The thickness of the ice formed increased when the sample
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> drainage was limited or prevented during cooling. Under specific conditions,
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> the formation of a discrete ice layer was observed in coarse-grained soils.
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> Seven samples were scanned with the μCT scanner at the completion of the
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> warming and cooling tests. The sub-samples scanned were analyzed in 2D
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> cross-sections, and characterized as 3D reconstructions. Frost heave induced
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> by the formation of ice was observed in both fine- and coarse-grained soils,
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> including soils that were found to be traditionally non-frost susceptible.
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### [Download](https://storage.googleapis.com/thermokarst-misc/ce_thesis/MRDillonCEThesisManuscript.pdf)
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PDF format manuscript, 166 pages. Science Commons, 2012.
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### [Appendix Material]({{ relref . "movies.md" }})
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