Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost
In this thesis, a research program aimed at developing a new retrofitting technique for enhancing bearing capacity of steel pile foundations in warming permafrost area is presented. The main goal was to refreeze the thawed soils surrounding pile foundations in permafrost regions and develop adfreeze...
Main Author: | |
---|---|
Format: | Thesis |
Language: | unknown |
Published: |
2021
|
Subjects: | |
Online Access: | https://curve.carleton.ca/b48f0384-adee-450e-9133-18cff62dc0be https://doi.org/10.22215/etd/2021-14756 https://ocul-crl.primo.exlibrisgroup.com/permalink/01OCUL_CRL/j2o5om/alma991022929036305153 |
id |
ftcarletonuniv:oai:curve.carleton.ca:39428 |
---|---|
record_format |
openpolar |
spelling |
ftcarletonuniv:oai:curve.carleton.ca:39428 2023-05-15T16:37:11+02:00 Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost Aman Zadeh, Amir Hossein 2021 https://curve.carleton.ca/b48f0384-adee-450e-9133-18cff62dc0be https://doi.org/10.22215/etd/2021-14756 https://ocul-crl.primo.exlibrisgroup.com/permalink/01OCUL_CRL/j2o5om/alma991022929036305153 unknown https://curve.carleton.ca/b48f0384-adee-450e-9133-18cff62dc0be https://doi.org/10.22215/etd/2021-14756 https://ocul-crl.primo.exlibrisgroup.com/permalink/01OCUL_CRL/j2o5om/alma991022929036305153 Thesis/Dissertation 2021 ftcarletonuniv https://doi.org/10.22215/etd/2021-14756 2022-01-23T08:03:39Z In this thesis, a research program aimed at developing a new retrofitting technique for enhancing bearing capacity of steel pile foundations in warming permafrost area is presented. The main goal was to refreeze the thawed soils surrounding pile foundations in permafrost regions and develop adfreeze bond at the pile-soil interface level by using a low temperature antifreeze circulated into steel pile. An experimental load test setup of a model steel pipe pile embedded in cohesionless ice-poor soils was carried out. The experimental results showed that local freezing is capable of developing adfreeze bond at the pile-soil interface. The pile shaft capacity significantly increased up to twice its initial shaft strength as a result of cooling application for only 25 min. An ABAQUS software model was also developed to investigate the effect of controlling parameters including pile diameter, thermal loads, and liquid circulation period on load carrying capacity of the piles. Thesis Ice permafrost CURVE - Carleton University Research Virtual Environment |
institution |
Open Polar |
collection |
CURVE - Carleton University Research Virtual Environment |
op_collection_id |
ftcarletonuniv |
language |
unknown |
description |
In this thesis, a research program aimed at developing a new retrofitting technique for enhancing bearing capacity of steel pile foundations in warming permafrost area is presented. The main goal was to refreeze the thawed soils surrounding pile foundations in permafrost regions and develop adfreeze bond at the pile-soil interface level by using a low temperature antifreeze circulated into steel pile. An experimental load test setup of a model steel pipe pile embedded in cohesionless ice-poor soils was carried out. The experimental results showed that local freezing is capable of developing adfreeze bond at the pile-soil interface. The pile shaft capacity significantly increased up to twice its initial shaft strength as a result of cooling application for only 25 min. An ABAQUS software model was also developed to investigate the effect of controlling parameters including pile diameter, thermal loads, and liquid circulation period on load carrying capacity of the piles. |
format |
Thesis |
author |
Aman Zadeh, Amir Hossein |
spellingShingle |
Aman Zadeh, Amir Hossein Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost |
author_facet |
Aman Zadeh, Amir Hossein |
author_sort |
Aman Zadeh, Amir Hossein |
title |
Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost |
title_short |
Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost |
title_full |
Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost |
title_fullStr |
Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost |
title_full_unstemmed |
Enhancement of Pile-Soil Adfreeze Strength in Warming Permafrost |
title_sort |
enhancement of pile-soil adfreeze strength in warming permafrost |
publishDate |
2021 |
url |
https://curve.carleton.ca/b48f0384-adee-450e-9133-18cff62dc0be https://doi.org/10.22215/etd/2021-14756 https://ocul-crl.primo.exlibrisgroup.com/permalink/01OCUL_CRL/j2o5om/alma991022929036305153 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
https://curve.carleton.ca/b48f0384-adee-450e-9133-18cff62dc0be https://doi.org/10.22215/etd/2021-14756 https://ocul-crl.primo.exlibrisgroup.com/permalink/01OCUL_CRL/j2o5om/alma991022929036305153 |
op_doi |
https://doi.org/10.22215/etd/2021-14756 |
_version_ |
1766027487185207296 |