Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil
One of the major effects of global warming is the thawing of permafrost. This phenomenon has several consequences on the affected environments, such as the loss of soil bearing capacity, the beginning of the seasonal cycles of freezing/thawing and an increase in the frequency of occurrence of natura...
Published in: | Global Journal of Earth Science and Engineering |
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ftavanpublishers:oai:ojs.pkp.sfu.ca:article/1199 2023-07-30T04:06:17+02:00 Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil Howald, E. Prina Torche, J. 2020-08-04 application/pdf https://www.avantipublishers.com/index.php/gjese/article/view/1199 https://doi.org/10.15377/2409-5710.2020.07.1 eng eng Avanti Publishers https://www.avantipublishers.com/index.php/gjese/article/view/1199/699 https://www.avantipublishers.com/index.php/gjese/article/view/1199 doi:10.15377/2409-5710.2020.07.1 https://creativecommons.org/licenses/by-nc/4.0 Global Journal of Earth Science and Engineering; Vol. 7 (2020); 1-21 2409-5710 Thawing Freezing Silty soil Permafrost Shear test Oedometric test info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftavanpublishers https://doi.org/10.15377/2409-5710.2020.07.1 2023-07-16T00:17:22Z One of the major effects of global warming is the thawing of permafrost. This phenomenon has several consequences on the affected environments, such as the loss of soil bearing capacity, the beginning of the seasonal cycles of freezing/thawing and an increase in the frequency of occurrence of natural hazards.This paper focuses on the loss of soil bearing capacity. A preliminary experimental study was carried out to understand and quantify the changes in the behaviour of a silty soil subjected to a freezing / thawing cycle through a series of laboratory tests. After the soil used for the lab tests was characterised, many shear tests and oedometric tests were performed before, during and after freezing. The geotechnical parameters were deduced from the oedometric curves and Mohr-Coulomb diagrams obtained. The comparison of the results made it possible to observe the evolution of the soil parameters, i.e. the internal friction angle, the cohesion, and the oedometric curves.All tests were carried out according to Swiss standards for laboratory testing Article in Journal/Newspaper permafrost Avanti Publishers (E-Journals) Global Journal of Earth Science and Engineering 7 1 21 |
institution |
Open Polar |
collection |
Avanti Publishers (E-Journals) |
op_collection_id |
ftavanpublishers |
language |
English |
topic |
Thawing Freezing Silty soil Permafrost Shear test Oedometric test |
spellingShingle |
Thawing Freezing Silty soil Permafrost Shear test Oedometric test Howald, E. Prina Torche, J. Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil |
topic_facet |
Thawing Freezing Silty soil Permafrost Shear test Oedometric test |
description |
One of the major effects of global warming is the thawing of permafrost. This phenomenon has several consequences on the affected environments, such as the loss of soil bearing capacity, the beginning of the seasonal cycles of freezing/thawing and an increase in the frequency of occurrence of natural hazards.This paper focuses on the loss of soil bearing capacity. A preliminary experimental study was carried out to understand and quantify the changes in the behaviour of a silty soil subjected to a freezing / thawing cycle through a series of laboratory tests. After the soil used for the lab tests was characterised, many shear tests and oedometric tests were performed before, during and after freezing. The geotechnical parameters were deduced from the oedometric curves and Mohr-Coulomb diagrams obtained. The comparison of the results made it possible to observe the evolution of the soil parameters, i.e. the internal friction angle, the cohesion, and the oedometric curves.All tests were carried out according to Swiss standards for laboratory testing |
format |
Article in Journal/Newspaper |
author |
Howald, E. Prina Torche, J. |
author_facet |
Howald, E. Prina Torche, J. |
author_sort |
Howald, E. Prina |
title |
Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil |
title_short |
Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil |
title_full |
Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil |
title_fullStr |
Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil |
title_full_unstemmed |
Global Warming and Loss of Bearing Capacity of Permafrost: An Experimental Study on the Effects of Freezing/Thawing Cycles on a Silty Soil |
title_sort |
global warming and loss of bearing capacity of permafrost: an experimental study on the effects of freezing/thawing cycles on a silty soil |
publisher |
Avanti Publishers |
publishDate |
2020 |
url |
https://www.avantipublishers.com/index.php/gjese/article/view/1199 https://doi.org/10.15377/2409-5710.2020.07.1 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Global Journal of Earth Science and Engineering; Vol. 7 (2020); 1-21 2409-5710 |
op_relation |
https://www.avantipublishers.com/index.php/gjese/article/view/1199/699 https://www.avantipublishers.com/index.php/gjese/article/view/1199 doi:10.15377/2409-5710.2020.07.1 |
op_rights |
https://creativecommons.org/licenses/by-nc/4.0 |
op_doi |
https://doi.org/10.15377/2409-5710.2020.07.1 |
container_title |
Global Journal of Earth Science and Engineering |
container_volume |
7 |
container_start_page |
1 |
op_container_end_page |
21 |
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1772818785463435264 |