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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Bibliographic Details
Main Author: Penner,E.
Other Authors: NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BUILDING RESEARCH
Format: Text
Language:English
Published: 1968
Subjects:
Soil Mechanics
Snow
Ice and Permafrost
Structural Engineering and Building Technology
(*STRUCTURES
FOUNDATIONS(STRUCTURES))
(*SOILS
FROST HEAVE)
ICE
PARTICLE SIZE
FREEZING
INTERFACES
THERMAL CONDUCTIVITY
MOISTURE
CAPILLARY TUBES
MATHEMATICAL ANALYSIS
PRESSURE
TABLES(DATA)
CANADA
Canada
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0675540
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0675540
Description
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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