Accession Number : AD0730823

Title :   Heave and Heaving Pressures in Frozen Soils,

Corporate Author : MCGILL UNIV MONTREAL (QUEBEC) DEPT OF CIVIL ENGINEERING AND APPLIED MECHANICS

Personal Author(s) : Yong,R. N. ; Osler,J. C.

Report Date : 17 NOV 1970

Pagination or Media Count : 13

Abstract : This study questions the advisability of using a singular capillary model, in view of the wide range of conditions and constraints prevailing at any one time. Since soil freezing involves moisture movement and associated resultant volumetric expansion at both the macroscopic and microscopic scale arising from temperature and osmotic gradients, it is clear that a comprehensive theory to rationally explain heave and (or) heaving pressures is needed to account for all major factors which influence the total response of the frozen soil system. In this respect, the results of a critical examination of recent field and laboratory tests performed at McGill University and elsewhere are used to show that the available theories may be too restricted in scope to explain all facets of the observed behavior of frozen natural soils. To overcome the shortcomings noted above, an extended generative mechanism is developed and procedures for the examination of actual results are presented. (Author)

Descriptors :   (*SOILS, *FROST HEAVE), SAND, SILT, FREEZING, ICE, PRESSURE, EXPERIMENTAL DATA, CANADA

Subject Categories : Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE