Šarūnas Skuodis, Mykolas Daugevičius, Neringa Dirgėlienė, Mindaugas Zakarka

Comparison of Gediminas Hill slopes behaviour under environmental and fireworks conditions

Abstract This study presents the results of three-dimensional finite element modelling of Gediminas Hill in Vilnius, incorporating existing buildings and the remains of the Upper and Lower Castles. The main objective is to assess slope stability using the strength reduction method and to identify potential critical failure scenarios considering the interaction between soil and structural elements. Both static and dynamic loading conditions are analysed. Static loading includes the self-weight of soil layers, technogenic deposits, structural elements, and infrastructure, while dynamic effects are represented by fireworks-induced impact loads. The comparison of analyses reveals differences in displacement development and failure mechanisms. Strength reduction results highlight the zones of concentrated deformation within the technogenic layer, which are further evaluated in relation to the effects of dynamic loading.

Doi https://doi.org/10.5200/baltica.2026.1.9

Keywords slope stability; dynamic loading; fireworks-induced vibrations; 3D finite element analysis

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