Temperature and Rate Effects on the Residual Shear Strength of Clays: A State of the Art
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F24%3A10488844" target="_blank" >RIV/00216208:11310/24:10488844 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.18485/resylab.2024.6.ch37" target="_blank" >https://doi.org/10.18485/resylab.2024.6.ch37</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.18485/resylab.2024.6.ch37" target="_blank" >10.18485/resylab.2024.6.ch37</a>
Alternative languages
Result language
angličtina
Original language name
Temperature and Rate Effects on the Residual Shear Strength of Clays: A State of the Art
Original language description
The temperature within a landslide's shear zone can undergo changes due to internal processes such as frictional heating and chemical reactions - the magnitude of which can be particularly relevant during fast runout phases in large landslides. Alterations in boundary conditions, including heat transfer from the bedrock or ground surface, but also groundwater flows and changes in vegetation cover can contribute to these temperature variations, over timeframes especially relevant to shallow, slow-moving landslides. The hydro-mechanical properties of soils, particularly those rich in clay minerals, exhibit dependency on temperature. Studies indicate that the residual shear strength, a crucial parameter in reactivated landslides, can vary significantly within typical temperature ranges in landslide shear zones in temperate climates. The literature also highlights the influence of the rate of shearing on the shear strength parameters of soils, including the residual shear strength, with the soil's mineral composition controlling rate strengthening and weakening behaviours in slow to rapid landslides. This contribution summarises the state of knowledge and presents recent findings from ring-shear experiments which indicate the coupled nature of temperature- and rate-dependence of the residual shear strength, which may play a substantial role especially in shallow clay landslides. This influence is particularly noteworthy in the context of climate change, emphasizing the need for explicit consideration in modeling efforts.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GA24-12316S" target="_blank" >GA24-12316S: Landslides in a changing climate: temperature controls over landslide susceptibility and hazard in temperate climate</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 6th Regional Symposium on Landslides in the Adriatic-Balkan Region
ISBN
978-86-7352-402-3
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
247-251
Publisher name
University of Belgrade, Faculty of Mining and Geology
Place of publication
Beograd
Event location
Belgrade, Serbia
Event date
Apr 15, 2024
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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