A preliminary investigation of the small rockfall triggering conditions along a road network in Slovenia

Šegina, Ela (avtor), Jemec Auflič, Mateja (avtor), Mikoš, Matjaž (avtor), Bezak, Nejc (avtor)

Rockfalls are among the natural hazards that endanger infrastructure, cause major economic disruptions, and threaten human lives. These phenomena result from long-term geological processes such as tectonic rock deformation or weathering, but the actual rockfall itself occurs suddenly, usually without warning. The triggering mechanisms are complex and difficult to trace. In this study, we investigated the triggering mechanisms of more than 2100 small rockfalls that occurred in 2021 in Slovenia, Europe, along the 51,000 km long national road network. We analyzed their spatial and temporal characteristics, as well as the triggering mechanisms of their occurrence, based on different weather scenarios. Multiple data mining methods were used to investigate triggering conditions, and scenario analyses were used to understand the triggering mechanisms. Most small rockfalls in 2021 were recorded in winter and spring at a density of 1 rockfall per 10 km$^2$. The results show that winter weather conditions have the greatest potential for triggering small rockfalls in Slovenia, both in terms of spatial extent and frequency of triggering weather conditions. The analysis showed that summer storms are an important but indeterminant factor for the occurrence of small rockfalls. Among the scenarios tested, the winter scenario, which includes a combination of antecedent precipitation, snowmelt, and freeze‒thaw cycles a few days before the event, was able to predict 72% of the events in the colder season.

• Jezik: Angleški jezik
• Ključne besede: small rockfalls, triggering mechanisms, scenario analysis, rainfall triggering, regional scale, data mining, Slovenia
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: Str. 739–751
• Številčenje: Vol. 22, iss. 3
• PID: 20.500.12556/RUL-167730
• UDK: 55
• ISSN pri članku: 1612-510X
• DOI: 10.1007/s10346-024-02302-z
• COBISS.SI-ID: 201975555
• Datum objave v RUL: 10.03.2025

Gradivo je del revije

• Naslov: Landslides : Journal of the international consortium on landslides
• Založnik: Springer
• ISSN: 1612-510X
• COBISS.SI-ID: 2274913

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: majhni skalni podori, mehanizmi sprožitve, analiza scenarijev, sprožitev ob padavinah, regionalna raven, podatkovno rudarjenje, Slovenija