HEAVING PRESSURE IN SOILS DURING UNIDIRECTIONAL FREEZING.
Ice lenses in natural soil are normally formed in a thermal gradient regime, and this permits the development of an undulating frost line if a range of pore sizes exists. Evidence is presented that suggests that the undulating nature of the ice-water interface permits the ice lens to form over the s...
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Format: | Text |
Language: | English |
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1968
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Online Access: | http://www.dtic.mil/docs/citations/AD0675540 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0675540 |
Summary: | Ice lenses in natural soil are normally formed in a thermal gradient regime, and this permits the development of an undulating frost line if a range of pore sizes exists. Evidence is presented that suggests that the undulating nature of the ice-water interface permits the ice lens to form over the smaller pores of the system. Although fractions with only a limited particle size range have been studied, the results support the use of particle size as a valid basis for assessing frost susceptibility. (Author) |
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