No abstract

The present paper provides a case study and an overview of the stability of high banks bordering the eastern basin of the largest central European lake, Lake Balaton, in Hungary. External factors such as rain, lake-water level, or pore water pressure are considered in the stability analysis. The slope stability was assessed using two software with different approximations and calculation methods. The results of the models using Plaxis and Rocscience Slide2 are compared. One of the major identified failure scenarios is the deep-seating rotational landslides that are triggered by rain and elevated groundwater table. The modeled slip surfaces are in good agreement with the inclinometer monitoring data of the site; meanwhile, the top of the slope failures is not influenced by water level.

Landslides are often triggered by various mechanisms such as precipitation, increase in the groundwater table, surface load, etc. and are classified according to the geometry and intensity of the motion. This paper provides an inventory considering all these factors by interpreting landslide records and available maps of the lakeside banks of the largest lake in Central Europe, Lake Balaton. Landslides in these areas severely damaged roads and railway networks. These disasters are linked to the mass movements of hundreds of m3 in the past years. The study area, the coastal regions of the lake, is divided into three geographically and geologically different sections (Eastern Basin, North Coast, South Coast). The landslide forms and the proportion of various movements and their timing also differ in these areas: at the south coast, falls and toppling prevail, while in the eastern basin, slidings prevail. The leading cause of mass movements is soaking and human interventions in all areas. Continuous monitoring of these landslide-prone areas contributes to the prediction of sliding and help in the design of remediation actions.