E.Sh. Kurbanov, A.M. Akhunzhanov, B.M. Abdurakhmanov (SE «Institute GIDROINGEO»), A.D. Kayumov (TSTU)

PREVENTIVE MEASURES BASED ON HYDROGEOLOGICAL AND GEOTECHNICAL PROCESSES CAUSED BY NATURAL AND MAN-MADE CONDITIONS DURING MINERAL MINING (REPUBLIC OF UZBEKISTAN)

The relevance of the problem, some features of hydrogeological and engineering-geological processes caused by natural and man-made conditions during mining operations are discussed (case study of highland facilities of Nurata-Zarafshan ore deposits). The investigating procedure includes studying not only the location of a sinkhole (collapse), but also sections adjacent to the sinkholes, since an important role in their formation is played by groundwater flows with active springs. Features of the development of strength and deformation properties of rock masses during the formation of landslide sinkhole collapses, which result in changes in mining and technical conditions of deposit development, are studied. Sinkholes formed because of ground failure in mine workings under the impact, mainly, of the hydrogeological and engineering-geological activities in the mining area are described.
Keywords: groundwater, coefficient of permeability, fracturing, collapses, stability, stress.