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Abstract

Summary

The Dnipro slopes require justification and development of landslide hazard boundaries based on a risk analysis of landslide activation, considering meteorological and technogenic factors. The weakened zones on the slope near Mykilska Brama were identified, which allows for the specification of locations for the application of geotechnical protective measures. These boundaries were delineated using mathematical modeling and the determination of the safety factor for three profiles on the slope, considering natural values of the physical and mechanical properties and in a saturated state. The calculations were performed using the RocScience Slides 6 software package, applying the method for circular cylindrical sliding surfaces. According to field observations, the engineering-geological conditions of the slope are complex due to the presence of a layer of subsiding loess soils, slope angles of 20–43°, and signs of erosion-gravitational processes, including tension cracks. Calculations of the slope safety factor in the forecasted state, specifically under soil moisture conditions, indicate a 10.4–22.4% decrease compared to the natural state. Distribution of the safety factor on the slope was obtained using the “Graph SF Along Slope” and interpolation method rather than just identifying the most hazardous slip surface. This approach provides a broader perspective on ensuring slope stability, shifting from a linear to a planar problem. The practical significance of the obtained results is the selection of optimal engineering solutions to ensure the safe use of areas that may be at risk of losing equilibrium due to the activation of gravitational processes.

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2025-04-14
2026-02-14
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