HEAVING PRESSURE IN SOILS DURING UNIDIRECTIONAL FREEZING.

• 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

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)