3D long-term monitoring of recent tectonic activity in the Branisko Tunnel (Eastern Slovakia)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F25%3A00637654" target="_blank" >RIV/67985891:_____/25:00637654 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.31577/GeolCarp.2025.04" target="_blank" >https://doi.org/10.31577/GeolCarp.2025.04</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.31577/GeolCarp.2025.04" target="_blank" >10.31577/GeolCarp.2025.04</a>

Result language
angličtina
Original language name
3D long-term monitoring of recent tectonic activity in the Branisko Tunnel (Eastern Slovakia)
Original language description
This article presents the results of more than 24 years of monitoring of displacements along a Šindliar fault plane using a high-resolution 3D extensometer (TM-71), which was installed in the Branisko highway tunnel. This significant fault, striking NNE–SSW, separates the pre-Cenozoic basement of the Branisko mountain range and Cenozoic sediments. The micro-movements indicate a contemporaneous oblique dextral strike-slip, which is consistent with regional transtension/extension proved by previous geological studies. Furthermore, obtained results show that the displacements are permanent, very slow, and reflect the changes in the stress field. An average speed of movement reaches 0.11 mm a year. Jump-like changes correspond well with weak earthquakes as well. Our results prove that cracks in the reinforcement of the Branisko highway tunnel occur as a result of recent tectonics. The long-term monitoring may contribute to the safe operation of the tunnel and represent a warning system in future.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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