Analysis of potential landslide processes in the Passo della Morte (Carnian Alps, Italy)

• Autorzy: Zabuski Lesław Michał , Marcato Gianluca

Identyfikatory

DOI

10.7306/gq.1552

• Języki publikacji: EN

Abstrakty

EN

Numerical simulations are provided of a potential landslide on a slope in the Passo della Morte (Carnian Alps, northeastern Italy). The slope is situated on the flank of a valley of the Tagliamento River. The danger arising from the potential landslide is associated with sliding rock damming the valley and a sudden discharge of water accumulated at the back of the dam in the case of its uncontrolled outburst. A description of the geology and geomechanical properties of the rock mass provides context for analysis of four models differing in terms of the shapes and dimensions of the solid rock blocks. The Universal Distinct Element Code (UDEC) is used to simulate the landslide of the rock mass modelled as a set of blocks interacting along discontinuities. Deformation scenarios obtained in the simulations vary depending on the model. Different, both continuous and discontinuous, deformation and failure mechanisms such as buckling, rockfall, rotation of the individual blocks and their packets, and folding, take place in each of the models analysed. Nevertheless, slip movement occurs in all four models. In addition, the simulations show that the rock mass in the deformed zones undergoes strong loosening.

Słowa kluczowe

EN

Passo della Morte landslide; discontinuous rock mass; distinct element method

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2020
• Tom: Vol. 64, No. 3
• Strony: 681--691
• Opis fizyczny: Bibliogr. 13 poz., fot., rys., tab., wykr.

Twórcy

autor

Zabuski Lesław Michał

• Polish Academy of Sciences, Institute of Hydro-Engineering, Kościerska 7, 80-328 Gdańsk, Poland

autor

Marcato Gianluca

• National Research Council, Research Institute for Geo-Hydrological Protection, Corso Stati Uniti 4, 35127 Padova, Italy

Bibliografia

• 1. Bieniawski, Z.T., 1984. Rock Mechanics in Mining and Tunneling. A.A. Balkema, Rotterdam/Brookfield.
• 2. Bossi, G., Zabuski, L., Pasuto, A., Marcato, G., 2016. Capabilities of Continuous and Discontinuous Modelling of a Complex, Structurally Controlled Landslide. Geotechnical and Geological Engineering, http://link.springer.com/article/10.1007/s10706-016-0057-z.
• 3. Codeglia, D., 2013. Analisi numerica tridimensionale tramite modello SPH della frana di Passo della Morte (UD) (in Italian). Unpublished M.Sc. thesis. University of Bologna, Italy.
• 4. Codeglia, D., 2017. Development of an Acoustic Emission Waveguide-based System for Monitoring of Rock Slope Deformation Mechanisms. Ph.D. tesis, Loughborough University.
• 5. Codeglia, D., Dixon, N., Bossi, G., Marcato, G., 2017. Alpine landslide risk scenario: run-out modelling using a 3D approach. Rendiconti Online Societa Geologica Italiana, 42: 14-17.
• 6. Cundall, P.A., Hart, R.D., 2014. Numerical modeling of discontinua.Comprehensive. Rock Engineering 2: 231-243.
• 7. Giani, G.P., 1992. Rock Slope Stability Analysis. A.A. Balkema, Rotterdam/ Brookfield.
• 8. Hoek, E., Bray, J.D., 1981. Rock Slope Engineering, 3rd edition. Taylor & Francis Group., London, New York.
• 9. Itasca Consulting Group, Inc., 2004. UDEC Manual. Itasca Consulting Group Inc.
• 10. Marcato, G., Silvano, F., Zabuski, L., 2005. Modellazione di ammassi rocciosi instabili con il metodo degli elementi distinti (in Italian). Giornale di Geologia Applicata, 2: 87-92.
• 11. Marcato, G., Zabuski, L., Silvano, S., 2007. Capabilities of continuous and discontinuous modelling of the rock slopes - a landslide in the Carnian Alps (Italy) using as an example. Geophysical Research Abstracts, 9: 02371. European Geosciences Union.
• 12. Starfield, A.M., Cundall, P.A., 1988. Towards a methodology for rock mechanics modelling. International Journal of Rock Mechanics and Mining Sciences.25: 99-106.
• 13. Zabuski, L., Marcato, G., 2014. Analysis of deformation processes of slopes with taking into account discontinuous character of the rock mass (in Polish with English summary). Przegląd Geologiczny, 62: 308-316.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).