Sherstiuk E. Geotechnical stability of rock massifs in the influence zone of technogenic ground-water mode of the mining complex

Sherstiuk Y.A. Geotechnical stability of rock massifs in the influence zone of technogenic groundwater mode of the mining complex. – Qualifying scientific work on the rights of the manuscript. Thesis for the degree of Candidate of Technical Sciences in specialty 05.15.09 - "Geotechnical and Geomechanics". – Dnipro University of Technology of the Min-istry of Education and Science of Ukraine, Dnipro, 2021. The thesis aims to solve a topical scientific and practical problem, which con-sists in identifying the patterns of formation of rock massif geotechnical stability in the influence zone of mining facilities, to develop effective technical solutions for their protection. The dependence of the distribution and values of quarry water inflows on the geological and structural conditions of the Inhulets iron ore deposit is established. An assessment of the water inflow dynamics and patterns of its formation during the entry of opencast mining operations into the collapse zone of underground min-ing is performed. The mechanism of violation of hydrogeomechanical stability of rock massifs is revealed on sites of formation of the groundwater local pressure state within the in-homogeneously layered rock strata. Features of deformation processes development in the conditions of technogenic disturbed groundwater mode are established. The research results were used to substantiate the methods and parameters of engineering protection of rock massifs in the influence zone of PJSC "Inhuletsky GZK" mining facilities. Key words: iron ore open pit, technogenic groundwater mode, hydrodynamic mode, numerical simulation, water inflows, collapse zone of underground mining, geotechnical stability