Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C
With the use of creep and constant strain rate (CSR) tests, mathematical formulations were found that describe the thermomechanical behaviour of ice-rich frozen soils. A Glen-type relationship was chosen for the formulation of minimum creep strain rates at temperatures between 4 °C and 1 °C. The s...
Published in: | Canadian Geotechnical Journal |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2005
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/t04-109 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-109 |
id |
crcansciencepubl:10.1139/t04-109 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/t04-109 2024-06-23T07:53:39+00:00 Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C Arenson, Lukas U Springman, Sarah M 2005 http://dx.doi.org/10.1139/t04-109 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-109 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Geotechnical Journal volume 42, issue 2, page 431-442 ISSN 0008-3674 1208-6010 journal-article 2005 crcansciencepubl https://doi.org/10.1139/t04-109 2024-05-30T08:13:50Z With the use of creep and constant strain rate (CSR) tests, mathematical formulations were found that describe the thermomechanical behaviour of ice-rich frozen soils. A Glen-type relationship was chosen for the formulation of minimum creep strain rates at temperatures between 4 °C and 1 °C. The shear strength of the material could be described by a MohrCoulomb failure criterion. Furthermore, it was possible to compare the creep behaviour with the strength of similar soils under constant strain rates. The minimum creep strain rate increases proportionally as the temperature approaches the melting point of the ice, which can be attributed to the increasing amount of unfrozen water, which strongly influences the mechanical response. Even though only a few tests could be used for the determination of the angle of friction and the apparent cohesion, the trend showed that the volumetric ice content influences both parameters, but only the latter seems to be influenced by the temperature and the applied compression strain rate.Key words: permafrost, frozen soil, creep, strength. Article in Journal/Newspaper Ice permafrost Canadian Science Publishing Canadian Geotechnical Journal 42 2 431 442 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
With the use of creep and constant strain rate (CSR) tests, mathematical formulations were found that describe the thermomechanical behaviour of ice-rich frozen soils. A Glen-type relationship was chosen for the formulation of minimum creep strain rates at temperatures between 4 °C and 1 °C. The shear strength of the material could be described by a MohrCoulomb failure criterion. Furthermore, it was possible to compare the creep behaviour with the strength of similar soils under constant strain rates. The minimum creep strain rate increases proportionally as the temperature approaches the melting point of the ice, which can be attributed to the increasing amount of unfrozen water, which strongly influences the mechanical response. Even though only a few tests could be used for the determination of the angle of friction and the apparent cohesion, the trend showed that the volumetric ice content influences both parameters, but only the latter seems to be influenced by the temperature and the applied compression strain rate.Key words: permafrost, frozen soil, creep, strength. |
format |
Article in Journal/Newspaper |
author |
Arenson, Lukas U Springman, Sarah M |
spellingShingle |
Arenson, Lukas U Springman, Sarah M Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C |
author_facet |
Arenson, Lukas U Springman, Sarah M |
author_sort |
Arenson, Lukas U |
title |
Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C |
title_short |
Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C |
title_full |
Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C |
title_fullStr |
Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C |
title_full_unstemmed |
Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °C |
title_sort |
mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 °c |
publisher |
Canadian Science Publishing |
publishDate |
2005 |
url |
http://dx.doi.org/10.1139/t04-109 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-109 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Canadian Geotechnical Journal volume 42, issue 2, page 431-442 ISSN 0008-3674 1208-6010 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/t04-109 |
container_title |
Canadian Geotechnical Journal |
container_volume |
42 |
container_issue |
2 |
container_start_page |
431 |
op_container_end_page |
442 |
_version_ |
1802645399554490368 |