Three-Dimensional Analysis of a Landslide Process on a Slope in Carpathian Flysch

• Autorzy: Zabuski Lesław

Identyfikatory

DOI

10.1515/heem-2019-0003

• Języki publikacji: EN

Abstrakty

EN

The paper presents a 3D (spatial) analysis of deformation processes in the landslide slope Bystrzyca in Szymbark near Gorlice (Low Beskid – Carpathians; N 49°37′ 09″, E 21°05′ 49″) carried out by the computer code FLAC3D based on the finite difference method. The numerical analysis was performed to determine the influence of the orientation of layers and discontinuities and of hydrogeological conditions on slope deformations and the failure mechanism during sliding processes. The massif is modeled as an elasto-plastic medium obeying the Coulomb-Mohr criterion. Two variants of hydrogeological conditions are analyzed, namely the “dry slope” (without water) and the “wet slope” (entirely saturated). The influence of the orientation of discontinuities (modeled as “ubiquitous”) on the landslide mechanism is investigated as well. Few orientations of discontinuities with respect to the dip direction of the slope surface are considered, namely consequent, insequent, and subsequent (two variants in each case). The results show a clear impact of the pattern of discontinuities and hydrogeological conditions on the deformational behavior of the landslide and the shape of the slip surface. The 3D approach and results of the numerical simulation of the landslide movement prove the necessity of 3D modeling in some cases.

Słowa kluczowe

EN

Carpathian flysch; landslide; discontinuity; 3D numerical calculations; displacement

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2019
• Tom: Vol. 66, nr 1-2
• Strony: 27--45
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Zabuski Lesław

• Institute of Hydro-Engineering, Polish Academy of Sciences, 7 Koscierska, 80-328 Gdansk, Poland

Bibliografia

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• Zabuski L. (2006) Numerical three-dimensional modelling of the landslide process in the Carpathian Flysch, Proc. Int. Conf. “Mass Movement Hazard in Various Environments”, Polish Geological Institute Special Papers 20, 20–21.10.2005, Kraków, 114–118.
• Zabuski L., Wójcik A., Gil E., Mrozek T., Raczkowski W. (2009) Landslide process in a flysch massif – case study of the Kawiory landslide, Beskid Niski Mts. (Carpathians, Poland), Geological Quarterly, 53 (3), PGI, Warsaw, 317–332.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).