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Iskalni niz: "avtor" (Janko Logar) .

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1.
Lessons learned from the monitoring of retaining structures, built in demanding geotechnical conditions in Slovenia
Pavel Žvanut, Janko Logar, 2019, objavljeni znanstveni prispevek na konferenci

Povzetek: A typical retaining structure built with large-diameter bored piles in soft clastic rock, and sup-ported by pre-stressed permanent ground anchors, is discussed. Step-by-step back analyses were performed. A simplified geological structure was first used in the analyses, together with a simple Mohr-Coulomb model. The results were compared with more complex analyses using a Hardening Soil model and a more detailed geological structure. Much better results were obtained with the use of the HS model, which is more suitable for the modelling of rock of such a type, but even with the use of the MC model the final results were quite good, making the use of the observational method attractive for engineers.
Ključne besede: geotechnics, gretaining structures, bored piles, numerical modelling, finite element method, observational method
Objavljeno v DiRROS: 27.03.2024; Ogledov: 100; Prenosov: 48
.pdf Celotno besedilo (1,67 MB)
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2.
Review of the research and evolution of landslides in the hinterland of Koroška Bela settlement (NW Slovenia)
Tina Peternel, Ela Šegina, Jernej Jež, Mateja Jemec Auflič, Mitja Janža, Janko Logar, Matjaž Mikoš, Miloš Bavec, 2022, izvirni znanstveni članek

Povzetek: This paper gives an overview of landslide research and the activity of landslides located above the Koroška Bela settlement in Northwest Slovenia. There are several landslides in this area and they pose a direct threat to the settlement below. The settlement is very densely populated (about 2,100 inhabitants) and has well-developed industry and infrastructure. It is built on deposits from past debris flows, indicating that large slope mass movements have occurred in the past. In this regard, the hinterland of Koroška Bela has been investigated since 2006, within the framework of various research, technical and European projects. The most extensive geological and geotechnical investigations were carried out after April 2017, when part of the Čikla landslide collapsed and mobilised into a debris flow. All of the investigations which have been carried out over the years revealed that the hinterland of Koroška Bela is characterised by high landslide activity due to geological, hydrogeological and tectonic conditions. In order to protect people and their property, it is essential to implement a holistic mitigation measure which includes remediation works (drainage works, debris flow breaker, etc.) and non-structural measures (monitoring system, early warning system, risk management, etc.). Regular and continuous monitoring of all landslides is also crucial to observe the landslide dynamics and evaluate the effectiveness of structural mitigation measures.
Ključne besede: landslide, debris flow, research, monitoring, landslide evolution, Koroška Bela
Objavljeno v DiRROS: 03.10.2022; Ogledov: 643; Prenosov: 180
.pdf Celotno besedilo (11,09 MB)

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