Cyclic creep of frozen soils

Cyclic creep behaviour of frozen saturated sand and frozen clays was studied by superimposing alternating stresses over a mean static compressive stress on the samples. Cyclic loading increased the creep rate of these materials considerably, which could be due to the increase in unfrozen water conte...

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Main Author: Parameswaran, V. R.
Format: Article in Journal/Newspaper
Language:English
Published: 1985
Subjects:
sol
Online Access:https://nrc-publications.canada.ca/eng/view/ft/?id=cec24c67-7834-4235-935a-ce1c94588e2c
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spelling ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20378138 2023-05-15T17:57:54+02:00 Cyclic creep of frozen soils Parameswaran, V. R. 1985 text https://nrc-publications.canada.ca/eng/view/ft/?id=cec24c67-7834-4235-935a-ce1c94588e2c https://nrc-publications.canada.ca/eng/view/object/?id=cec24c67-7834-4235-935a-ce1c94588e2c https://nrc-publications.canada.ca/fra/voir/objet/?id=cec24c67-7834-4235-935a-ce1c94588e2c eng eng Proceedings of the 4th International Symposium on Ground Freezing, 4th International Symposium on Ground Freezing, August 5, 1985, Sapporo, Japan, Volume: 2, Publication date: 1985, Pages: 201–206 report_number:DBR-P-1337 permafrost soils frozen soils creep tests creep rate creep pergélisol sol sol gelé essai de fluage taux de fluage fluage frozen saturated sand frozen clays alternating stress mean static compressive stress cyclic loading clay strain hardening article 1985 ftnrccanada 2021-09-01T06:34:41Z Cyclic creep behaviour of frozen saturated sand and frozen clays was studied by superimposing alternating stresses over a mean static compressive stress on the samples. Cyclic loading increased the creep rate of these materials considerably, which could be due to the increase in unfrozen water content generated by the transient thermal energy produced by mechanical cycling. The strain increment per cycle was found to increase with increasing strain in frozen sand, whereas it decreased in frozen clays, showing a tendency for strain hardening. L'auteur a étudié le fluage cyclique des sable saturé et argiles gelés en superposant des charges alternantes sur une charge de compression statique moyenne posée sur les échantillons. Le chargement cyclique a accru considérablement la vitesse de fluage de ces matériaux, ce qui pourrait s'expliquer par l'augmentation de la teneur d'eau non gelée résultant de l'énergie thermique transitoire produite par cyclage mécanique. On a observé que l'incrément de déformation par cycle augmentait proportionnellement à l'accroissement de la déformation du sable gelé, tandis qu'il diminuait dans les argiles gelées, montrant une tendance à la résistance progressive à la déformation. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper permafrost pergélisol National Research Council Canada: NRC Publications Archive
institution Open Polar
collection National Research Council Canada: NRC Publications Archive
op_collection_id ftnrccanada
language English
topic permafrost
soils
frozen soils
creep tests
creep rate
creep
pergélisol
sol
sol gelé
essai de fluage
taux de fluage
fluage
frozen saturated sand
frozen clays
alternating stress
mean static compressive stress
cyclic loading
clay strain hardening
spellingShingle permafrost
soils
frozen soils
creep tests
creep rate
creep
pergélisol
sol
sol gelé
essai de fluage
taux de fluage
fluage
frozen saturated sand
frozen clays
alternating stress
mean static compressive stress
cyclic loading
clay strain hardening
Parameswaran, V. R.
Cyclic creep of frozen soils
topic_facet permafrost
soils
frozen soils
creep tests
creep rate
creep
pergélisol
sol
sol gelé
essai de fluage
taux de fluage
fluage
frozen saturated sand
frozen clays
alternating stress
mean static compressive stress
cyclic loading
clay strain hardening
description Cyclic creep behaviour of frozen saturated sand and frozen clays was studied by superimposing alternating stresses over a mean static compressive stress on the samples. Cyclic loading increased the creep rate of these materials considerably, which could be due to the increase in unfrozen water content generated by the transient thermal energy produced by mechanical cycling. The strain increment per cycle was found to increase with increasing strain in frozen sand, whereas it decreased in frozen clays, showing a tendency for strain hardening. L'auteur a étudié le fluage cyclique des sable saturé et argiles gelés en superposant des charges alternantes sur une charge de compression statique moyenne posée sur les échantillons. Le chargement cyclique a accru considérablement la vitesse de fluage de ces matériaux, ce qui pourrait s'expliquer par l'augmentation de la teneur d'eau non gelée résultant de l'énergie thermique transitoire produite par cyclage mécanique. On a observé que l'incrément de déformation par cycle augmentait proportionnellement à l'accroissement de la déformation du sable gelé, tandis qu'il diminuait dans les argiles gelées, montrant une tendance à la résistance progressive à la déformation. Peer reviewed: Yes NRC publication: Yes
format Article in Journal/Newspaper
author Parameswaran, V. R.
author_facet Parameswaran, V. R.
author_sort Parameswaran, V. R.
title Cyclic creep of frozen soils
title_short Cyclic creep of frozen soils
title_full Cyclic creep of frozen soils
title_fullStr Cyclic creep of frozen soils
title_full_unstemmed Cyclic creep of frozen soils
title_sort cyclic creep of frozen soils
publishDate 1985
url https://nrc-publications.canada.ca/eng/view/ft/?id=cec24c67-7834-4235-935a-ce1c94588e2c
https://nrc-publications.canada.ca/eng/view/object/?id=cec24c67-7834-4235-935a-ce1c94588e2c
https://nrc-publications.canada.ca/fra/voir/objet/?id=cec24c67-7834-4235-935a-ce1c94588e2c
genre permafrost
pergélisol
genre_facet permafrost
pergélisol
op_relation Proceedings of the 4th International Symposium on Ground Freezing, 4th International Symposium on Ground Freezing, August 5, 1985, Sapporo, Japan, Volume: 2, Publication date: 1985, Pages: 201–206
report_number:DBR-P-1337
_version_ 1766166408203337728