Engineering Applications in Permafrost Areas 445 Heat flow measurements in freezing soils with various freezing front advancing rates

• Main Author: Masami Fukuda
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: permafrost
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.510.4335; http://pubs.aina.ucalgary.ca/cpc/CPC4-445.pdf

of 1975-1976 and 1976-1977, were undertaken to determine the relationship between the rate of frost heave and the speed of progression of the freezing front, and to measure the associated thermal flux. The poor relationship between the observed and calculated thermal flux values is attributed to insuf-ficient knowledge of soil moisture conditions. Laboratory procedures are described which measure frost heave and soil moisture by the gamma ray attenuation method. Etudes sur le terrain a la station forestiere exptrimentale de Tomakomai (Hokkaido), durant les hivers 1975-76 et 1976-77, pour determiner la relation entre les taux de soultvement par le gel et la vitesse de progression du front de congtlation, et pour mesurer le flux thermique correspondant. Le manque d’accord entre les valeurs observtes et calcultes du flux thermique est attribut aux connais-sances insuffisantes des conditions d’humiditt. On dtcrit des mtthodes de laboratoire permettant de mesurer le soulhement par le gel et de surveiller les profils de teneur en eau par la mCthode d’attenua-tion des rayons gamma. Proc. 4th Can. Permafrost Conf. (1982)