Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities
A temperature- and stress-dependent failure criterion for ice-filled rock (limestone) joints was proposed in 2018 as an essential tool to assess and model the stability of degrading permafrost rock slopes. To test the applicability to other rock types, we conducted laboratory tests with mica schist...
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Copernicus Publications
2020
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Online Access: | https://doi.org/10.5194/tc-14-1849-2020 https://www.the-cryosphere.net/14/1849/2020/tc-14-1849-2020.pdf https://doaj.org/article/e8c4ab3aa42c4eafb39af2b7ca22c5ca |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:e8c4ab3aa42c4eafb39af2b7ca22c5ca 2023-05-15T16:37:14+02:00 Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities P. Mamot S. Weber M. Lanz M. Krautblatter 2020-06-01 https://doi.org/10.5194/tc-14-1849-2020 https://www.the-cryosphere.net/14/1849/2020/tc-14-1849-2020.pdf https://doaj.org/article/e8c4ab3aa42c4eafb39af2b7ca22c5ca en eng Copernicus Publications doi:10.5194/tc-14-1849-2020 1994-0416 1994-0424 https://www.the-cryosphere.net/14/1849/2020/tc-14-1849-2020.pdf https://doaj.org/article/e8c4ab3aa42c4eafb39af2b7ca22c5ca undefined The Cryosphere, Vol 14, Pp 1849-1855 (2020) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.5194/tc-14-1849-2020 2023-01-22T19:15:11Z A temperature- and stress-dependent failure criterion for ice-filled rock (limestone) joints was proposed in 2018 as an essential tool to assess and model the stability of degrading permafrost rock slopes. To test the applicability to other rock types, we conducted laboratory tests with mica schist and gneiss, which provide the maximum expected deviation of lithological effects on the shear strength due to strong negative surface charges affecting the rock–ice interface. Retesting 120 samples at temperatures from −10 to −0.5 ∘C and normal stress of 100 to 400 kPa, we show that even for controversial rocks the failure criterion stays unaltered, suggesting that the failure criterion is transferable to mostly all rock types. Article in Journal/Newspaper Ice permafrost The Cryosphere Unknown The Cryosphere 14 6 1849 1855 |
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English |
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geo envir |
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geo envir P. Mamot S. Weber M. Lanz M. Krautblatter Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities |
topic_facet |
geo envir |
description |
A temperature- and stress-dependent failure criterion for ice-filled rock (limestone) joints was proposed in 2018 as an essential tool to assess and model the stability of degrading permafrost rock slopes. To test the applicability to other rock types, we conducted laboratory tests with mica schist and gneiss, which provide the maximum expected deviation of lithological effects on the shear strength due to strong negative surface charges affecting the rock–ice interface. Retesting 120 samples at temperatures from −10 to −0.5 ∘C and normal stress of 100 to 400 kPa, we show that even for controversial rocks the failure criterion stays unaltered, suggesting that the failure criterion is transferable to mostly all rock types. |
format |
Article in Journal/Newspaper |
author |
P. Mamot S. Weber M. Lanz M. Krautblatter |
author_facet |
P. Mamot S. Weber M. Lanz M. Krautblatter |
author_sort |
P. Mamot |
title |
Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities |
title_short |
Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities |
title_full |
Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities |
title_fullStr |
Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities |
title_full_unstemmed |
Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled discontinuities |
title_sort |
brief communication: the influence of mica-rich rocks on the shear strength of ice-filled discontinuities |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/tc-14-1849-2020 https://www.the-cryosphere.net/14/1849/2020/tc-14-1849-2020.pdf https://doaj.org/article/e8c4ab3aa42c4eafb39af2b7ca22c5ca |
genre |
Ice permafrost The Cryosphere |
genre_facet |
Ice permafrost The Cryosphere |
op_source |
The Cryosphere, Vol 14, Pp 1849-1855 (2020) |
op_relation |
doi:10.5194/tc-14-1849-2020 1994-0416 1994-0424 https://www.the-cryosphere.net/14/1849/2020/tc-14-1849-2020.pdf https://doaj.org/article/e8c4ab3aa42c4eafb39af2b7ca22c5ca |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-14-1849-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
6 |
container_start_page |
1849 |
op_container_end_page |
1855 |
_version_ |
1766027530659168256 |