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https://hdl.handle.net/11681/2711| Title: | Experimental study of frost heaving |
| Authors: | Higashi, Akira, 1922- |
| Keywords: | Soils Frost heave Frost heaving Frost action Soil freezing Frost penetration Frozen soils Frozen ground Temperature distribution Soil temperature Ground temperature |
| Publisher: | U.S. Army Snow, Ice, and Permafrost Research Establishment. Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Research report (U.S. Army Snow |
| Description: | Research Report Summary: Laboratory studies on the effects of the soil-temperature regime on the type of ice segregation and the rate of frost heaving are described in detail, and the results are analyzed quantitatively on the basis of thermodynamic and hydraulic theory, assuming that suction is created by ice formation. The heaving rate varied with the type of ice segregation, which in turn depended on the rate of frost penetration. Ice-filament layers or sirloin-type freezing were observed at low penetration rates and concrete-type freezing at high penetration rates. The heaving rate decreased with increasing frost-penetration rate, and varied, in the case of filament-type freezing, according to the amount of sensible heat lost at the freezing interface. The sensible heat loss was 0.62 cal/cm-sec in the case of maximum heaving (7 mm/day); higher values resulted in thermal conditions favoring sirloin-type freezing. The moisture content of frozen soil was found to be related to the heaving ratio, inasmuch as the amount of heaving is attributed to the amount of segregated ice. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/2711 |
| Appears in Collections: | Research Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| SIPRE-Research-Report-45.pdf | 16.02 MB | Adobe PDF |  View/Open |