GEOTECHNICAL ASSESSMENT AND STABILIZATION OF A ROCKY SLOPE FOR RESIDENTIAL CONSTRUCTION IN TBILISI, GEORGIA

Constructing stable residential structures on natural slopes with complex geological and hydrological conditions presents significant challenges, especially in seismically active regions like Georgia. This study focuses on a planned construction project in Tbilisi, between Lake Lisi and Vashlijvari, where multiple buildings are planned on a rocky slope. The site’s stability is influenced by unfavorable stratification of sandstone and argillite, which are subject to surface erosion and groundwater infiltration in bedding joints.

The primary objective is to assess the stability of the rock slope qualitatively and quantitatively. Key factors analyzed include rock orientation, geological fractures, groundwater influence, and potential landslide planes. The investigation involved engineering-geological mapping, borehole drilling, and laboratory testing of rock and soil properties. Stability calculations considered stress changes due to excavation, groundwater effects, and seismic forces.

Based on the analysis, engineering solutions were proposed, including rock anchoring, retaining walls, protective nets, and drainage systems. These measures aim to mitigate slope instability and ensure the structural safety of the project. The study provides a framework for addressing geotechnical challenges in complex terrains, contributing to sustainable urban development.