Measurement of permeability coefficient of frozen soils

Tetsuya Tokoro

In the proceedings of: GeoVancouver 2016: 69th Canadian Geotechnical Conference

Session: COLD REGIONS ENGINEERING

ABSTRACT: In this study, permeability tests were conducted for three types of frost-susceptible soils within a temperature range of -0.5°C to -0.25°C. The permeability coefficient of frozen soil was investigated in detail by comparison with the unfrozen water content obtained by the pulse NMR method. The test results indicated that the water coefficient of permeability depends on temperature and changes drastically over the tested temperature range. Moreover, the difference in the permeability coefficient of soil between the unfrozen and frozen states depends on the amount of unfrozen water content. Therefore, the permeability coefficient of frozen soil is strongly related with temperature and unfrozen water content.

RÉSUMÉ: Dans cette étude, des essais de perméabilité de sol gelé ont été réalisés sur une plage de température de -0,25°C à -antillons de sol susceptible au gel. Les résultats ont fait apparaître que le coefficient de essais. En outre, un examen détaillé du coefficient de perméabilité du sol gelé, effectué par comparaison avec la teneur en eau non gelée obtenue par RMN impulsionnelle, a montré que ce coefficient est fortement relié à la teneur en eau non gelée.

Please include this code when submitting a data update: GEO2016_3896

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