Sadovenko, I. O. and Rudakov, D. V. and Zahrytsenko, A. M. and Derevaygina, N. I. (2020) OPTIMIZATION OF ENVIRONMENTAL ENGINEERING PROTECTION AND WATER RESOURCE USE AT THE MOST WATERED MINE IN UKRAINE. Resource-saving technologies of raw-material base development in mineral mining and processing. pp. 501-513.

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Title in English

OPTIMIZATION OF ENVIRONMENTAL ENGINEERING PROTECTION AND WATER RESOURCE USE AT THE MOST WATERED MINE IN UKRAINE

English abstract

This study deals with the environment protection of mining areas af-fected by flooding and waterlogging in Western Donbas. We used finite difference numerical modelling to analyse the hydrogeological regime of mining sites as com-plex geotechnical systems being transformed under the multifactorial influence and parameter uncertainty. The developed ground water flow model of the most water-abundant mine in Ukraine named after N.I. Stashkov has been validated using the available data on chronological stages of mining. This enabled to identify the patterns of temporal and spatial changes of flow parameters, the locations of high transmissiv-ity zones in rocks and balance water flows in carboniferous and shallow aquifers. Using the model we assessed the hydrodynamic conditions expected after closing and flooding the mine, particularly, the risks of near-by mine operation and environ-mental consequences to the ground surface. The groundwater level rebound is ex-pected to take three years with emerging the zones of potential flooding and water-logging in the Samara River floodplain. We compared four options of environmental engineering protection including the installation of stationary or submersible pumps in the mining horizon used for drainage, with evaluating the cost-effectiveness and anticipated environmental effect. The alternative option has been recommended to protect the floodplain from waterlogging by installing a groundwater intake in high permeable sandstones in the paleochannel.

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