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The extensive network of engineering protection of the territory of the Kyiv-Pechersk Lavra against the impact of hazardous processes (landslides, flooding) includes more than 5 km of retaining walls (brick, concrete, pile-based) and about 12 km of drainage networks (tunnel, gallery, and radial types). The effectiveness of the drainage adit systems (DAS) on the Upper Lavra and the radial drainage on the territory of the Guest Yard (Inn Courtyard) of the Lower Lavra was analyzed. The paper proposes an assessment of...

In the face of an ever-evolving environment, a crucial challenge emerges concerning the dynamic interplay between the sea and the land. Amidst these complexities, a fundamental question arises: should human intervention seek to reshape the natural processes, or should it primarily focus on comprehensive understanding, aiming to maintain a semblance of equilibrium? These intricacies, along with several important technical considerations, underscore the imperative to safeguard coastal regions against the escalating ...

The paper presents the results of determining waterlogging zones and their factors using non-destructive monitoring methods on the territory of the Kyiv-Pechersk Lavra Metropolitan's Garden. The research was carried out using the methods of electrotomography, natural electric field with the use of subsurface sounding radars. The results of electrotomography were interpreted using two- and three-dimensional models. The territory of the Upper Lavra Metropolitan-s Garden is a combination of complex engineering and ge...

The paper presents research on the development of enrichment of polymetallic ores of the Elan deposit. The heterogeneity of textures, structures and material composition of the ores of the Elan deposit make it a difficult object for technological research. The research was focused on the development of waste-free enrichment technology; progressive stadial, collective and collectively selective flotation schemes with full water circulation, ensuring environmental protection, using both currently manufactured by ind...

Most rivers in the temperate zone experience flooding due to snowmelt or heavy rainstorms. The lower Danube rivers has caused significant economic damages and in some cases even loss of human life. Understanding the relationship between the occurrence rate of Danube rivers flood events and climate change is crucial for flood risk management in Romania. Here we present a multiproxy and observational data set of floods from the lower Danube Basin Rivers over the last millennium. The results highlight that the lower ...

The work aims to characterize the slope instabilities present in the Taveiro Sand and Clay - Areias e Argilas de Taveiro - Formation, which occurs in the municipalities of Condeixa and Coimbra, in central-western Portugal. The Areias e Argilas de Taveiro Formation, of Upper Cretaceous - Campanian - age, is made up of successions of metric layers of red, and brownish or pinkish pelites, interbedded with coarse arkosic sandstones. It has as maximum thickness of about 170 m. A total of 27 slopes with stability proble...

The present study aims to investigate the current conditions of saltwater intrusion in the Shabla - Krapets area, a long-known area of groundwater salinization. The main objectives of this investigation are (i) to find the interface (boundary) between fresh and salty (brackish) water and (ii) to study the seasonal dynamic of saltwater movement in the aquifer (intrusion). The results were obtained from July 2022 to the end of 2023. In the area of investigation (aquifer), there is a fresh groundwater layer which thi...

In this work, a rock fall assessment was carried out in two distinct areas in southwest Angola. One is located next to Chapel of Nossa Senhora do Monte in the urban area of Lubango. The other area is located on the road between the city of Lubango and the tourist area of Tundavala. The rock mass of the first area belongs to the Tundavala Formation of the Chela Group and consists of quartzitic-sandstone with a sub-horizontal bedding attitude. The rock mass in the second area is composed of quartzitic-sandstone and ...

This paper focuses on the Deep Seated Gravitational Slope Deformation (DSGSD) affecting Val Roncaglia (Northern Italy). Based on the state of the art about DSGSD, the study area was characterized from geologic, tectonic, geomorphological, and hydrogeological points of view in order to reconstruct the conceptual model of the slope (geometry, geomaterials and their properties). Moreover, based on the available monitoring data, the landslide kinematics was pointed out together with its possible evolution and the rela...