Abstract
This thesis analyzes methods for supporting sublevel drifts under conditions of unstable rock masses. Factors influencing the formation of rock pressure, the effect of excavation shape on its stability, and optimal support structures for complex mining and geological conditions are considered. The aim of the research is to identify effective methods that ensure the operational stability of mine workings throughout their service life.The study thoroughly investigates the main factors affecting the formation of rock pressure, including geostatic stresses, lithological composition of rocks, degree of fracturing, and hydrogeological conditions. A comparative analysis of stress distribution patterns in mine workings with different cross-sectional shapes (trapezoidal, arched, and circular) was conducted, and the structural advantages of dome-shaped forms for unstable rock masses were substantiated.
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