| Download | - View final version: Aspects of ice lens formation (PDF, 1.0 MiB)
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| Author | Search for: Penner, E.1 |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Article |
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| Conference | 3rd International Symposium on Ground Freezing; U.S. Army Corps of Engineers, CRREL: 22 June 1982, Hanover, New Hampshire, United States |
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| Subject | permafrost; soils; frost heaving; frozen soils; ice; X-ray detection; thermal gradient; ice lens temperatures; suction gradients; Leda clay |
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| Abstract | It is possible to locate a growing ice lens in a frost heave cell in soil under laboratory conditions by means of a recently devised X-ray technique. If temperature distribution is measured in the sample at the same time, the temperature of the growing face of the ice lens can be determined. The objective of the study was to validate this method under a range of heaving conditions. It was done by determining ice lens temperatures at various overburden pressures and cold side temperatures; then, by adjusting the ice lens temperature for overburden pressure and pore water salt content, the remaining difference from 0 degrees C was expressed in terms of suction. Suction gradients in unfrozen soil under various freezing conditions were subsequently plotted as a function of rate of moisture flow and a proportionality was shown to exist. In addition the calculated permeability coefficient was the expected value for the material, Leda clay. These results lend credence to use of the X-ray - thermal gradient technique for studying thermal behaviour of ice lens growth. |
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| Publication date | 1982 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | DBR-P-1051 |
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| NRC number | NRCC 20609
NRC-IRC-358 |
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| NPARC number | 20375848 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 02d445cc-c57f-4b2d-a053-14815ef844fb |
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| Record created | 2012-07-23 |
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| Record modified | 2024-03-22 |
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