A coupled consolidation shear model for the process of formation of glaciated soils
It has been generally observed that the measured preconsolidation pressure values for glaciated soils are not compatible with the measured effective pressure values at the bed of the glacier if one-dimensional consolidation alone is considered as the formation process for these soils. In this paper,...
Published in: | Canadian Geotechnical Journal |
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Canadian Science Publishing
2008
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crcansciencepubl:10.1139/t07-092 2023-12-17T10:30:36+01:00 A coupled consolidation shear model for the process of formation of glaciated soils Huang, Bingquan Sharma, Jitendra S. 2008 http://dx.doi.org/10.1139/t07-092 http://www.nrcresearchpress.com/doi/full-xml/10.1139/T07-092 http://www.nrcresearchpress.com/doi/pdf/10.1139/T07-092 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Geotechnical Journal volume 45, issue 2, page 226-237 ISSN 0008-3674 1208-6010 Civil and Structural Engineering Geotechnical Engineering and Engineering Geology journal-article 2008 crcansciencepubl https://doi.org/10.1139/t07-092 2023-11-19T13:38:17Z It has been generally observed that the measured preconsolidation pressure values for glaciated soils are not compatible with the measured effective pressure values at the bed of the glacier if one-dimensional consolidation alone is considered as the formation process for these soils. In this paper, a new model for the process of formation of glaciated soil, termed the coupled consolidation shear (CCS) model, is developed using the frameworks of critical state soil mechanics and small-strain consolidation theory. The CCS model includes simultaneous shearing and consolidation of subglacial sediments and is able to simulate profiles of preconsolidation pressure versus depth that closely resemble those observed in glaciated soils. The CCS model is validated by successfully simulating the profile of preconsolidation pressure versus depth for an 80 m deep Battleford till layer in Birsay, Saskatchewan, Canada. The CCS model suggests the existence of anisotropic yield strength and stiffness in glaciated soils as a consequence of coupling subglacial shear and consolidation. Article in Journal/Newspaper glacier* Canadian Science Publishing (via Crossref) Canada Canadian Geotechnical Journal 45 2 226 237 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology |
spellingShingle |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology Huang, Bingquan Sharma, Jitendra S. A coupled consolidation shear model for the process of formation of glaciated soils |
topic_facet |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology |
description |
It has been generally observed that the measured preconsolidation pressure values for glaciated soils are not compatible with the measured effective pressure values at the bed of the glacier if one-dimensional consolidation alone is considered as the formation process for these soils. In this paper, a new model for the process of formation of glaciated soil, termed the coupled consolidation shear (CCS) model, is developed using the frameworks of critical state soil mechanics and small-strain consolidation theory. The CCS model includes simultaneous shearing and consolidation of subglacial sediments and is able to simulate profiles of preconsolidation pressure versus depth that closely resemble those observed in glaciated soils. The CCS model is validated by successfully simulating the profile of preconsolidation pressure versus depth for an 80 m deep Battleford till layer in Birsay, Saskatchewan, Canada. The CCS model suggests the existence of anisotropic yield strength and stiffness in glaciated soils as a consequence of coupling subglacial shear and consolidation. |
format |
Article in Journal/Newspaper |
author |
Huang, Bingquan Sharma, Jitendra S. |
author_facet |
Huang, Bingquan Sharma, Jitendra S. |
author_sort |
Huang, Bingquan |
title |
A coupled consolidation shear model for the process of formation of glaciated soils |
title_short |
A coupled consolidation shear model for the process of formation of glaciated soils |
title_full |
A coupled consolidation shear model for the process of formation of glaciated soils |
title_fullStr |
A coupled consolidation shear model for the process of formation of glaciated soils |
title_full_unstemmed |
A coupled consolidation shear model for the process of formation of glaciated soils |
title_sort |
coupled consolidation shear model for the process of formation of glaciated soils |
publisher |
Canadian Science Publishing |
publishDate |
2008 |
url |
http://dx.doi.org/10.1139/t07-092 http://www.nrcresearchpress.com/doi/full-xml/10.1139/T07-092 http://www.nrcresearchpress.com/doi/pdf/10.1139/T07-092 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
glacier* |
genre_facet |
glacier* |
op_source |
Canadian Geotechnical Journal volume 45, issue 2, page 226-237 ISSN 0008-3674 1208-6010 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/t07-092 |
container_title |
Canadian Geotechnical Journal |
container_volume |
45 |
container_issue |
2 |
container_start_page |
226 |
op_container_end_page |
237 |
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1785583579908014080 |