Thermo-hydro-mechanical dynamics of a rock slope: Integrated field and numerical analysis at the Pozáry test site in the Czech Republic.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F25%3A00638650" target="_blank" >RIV/67985891:_____/25:00638650 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jrmge.2024.09.052" target="_blank" >https://doi.org/10.1016/j.jrmge.2024.09.052</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jrmge.2024.09.052" target="_blank" >10.1016/j.jrmge.2024.09.052</a>
Alternative languages
Result language
angličtina
Original language name
Thermo-hydro-mechanical dynamics of a rock slope: Integrated field and numerical analysis at the Pozáry test site in the Czech Republic.
Original language description
Understanding strain and fracture evolution in rock masses under climate change is crucial for slopenstability. This study presents a fully coupled thermo-hydro-mechanical (THM) simulation of a rock slopenat the Po z ary test site in the Czech Republic, integrating field tests and laboratory analyses. The simu-nlations used the exactly measured slope geometry and incorporated a pre-existing upper slope fracture.nKey constitutive models for fluid and vapor flow, heat conduction, and porosity-dependent permeabilitynwere coupled with a viscoplastic damage model to capture the THM behavior of the rock slope. Labo-nratory tests on three rock samples (A, B, and C) with varying elastic moduli and porosities informed thenmaterial properties for three corresponding models. Simulation results showed greater thermal changesnin the upper sections of the slope due to increased exposure to thermal effects. Model A, with the highestnelastic modulus, exhibited lower initial strain changes, while Model C showed significant early strainnvariations. After 30 d, Model A experienced a sudden strain decrease due to thermal contraction-inducedndamage. The critical fractured zone (CFZ) analysis revealed that rock contraction under cooling led to annincrease in pore water pressure, exacerbating the damage. Model B highlighted the impact of geometricalnasymmetry on the propagation of the damaged zone. Over time, the thermal effects increased plasticndeformation in Model A, while Model C remained elastic and exhibited no damage. These findings havensignificant implications for assessing rock slope stability, particularly in predicting failure zones due tonpermeability reduction and pore water pressure generation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/SS02030023" target="_blank" >SS02030023: Rock Environment and Natural Resources</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Rock Mechanics and Geotechnical Engineering
ISSN
1674-7755
e-ISSN
2589-0417
Volume of the periodical
17
Issue of the periodical within the volume
8
Country of publishing house
CN - CHINA
Number of pages
17
Pages from-to
4745-4761
UT code for WoS article
001553587900004
EID of the result in the Scopus database
2-s2.0-105010294578