Forecasting Underground Water Dynamics within the Technogenic Environment of a Mine Field. Case Study
| Autor: | Roman Dychkovskyi, Alina Zahrytsenko, Pavlo Saik, Oleg Bazaluk, Vasyl Lozynskyi, Ivan Sadovenko |
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| Rok vydání: | 2021 |
| Předmět: |
Geography
Planning and Development geofiltration 0211 other engineering and technologies TJ807-830 Context (language use) 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law TD194-195 01 natural sciences Renewable energy sources Water balance Mining engineering GE1-350 mine Extraction (military) Rock mass classification hydrodynamic 021101 geological & geomatics engineering 0105 earth and related environmental sciences Environmental effects of industries and plants Renewable Energy Sustainability and the Environment underground water modeling Environmental sciences Closure (computer programming) Environmental science Stage (hydrology) Groundwater Stoping |
| Zdroj: | Sustainability Volume 13 Issue 13 Sustainability, Vol 13, Iss 7161, p 7161 (2021) |
| ISSN: | 2071-1050 |
| Popis: | The objective is to analyze the dynamics of the underground water of a mine field based on the study of the geofiltration process of the rock mass disturbed by mining to achieve safe extraction operations as well as subsurface territories at the stage of the mining enterprise closure. Numerical modeling, based on a finite difference method under the conditions of multifactority and definite uncertainty of processes of transformation of technogenic environment of a mine field, helps solve a problem concerning underground water dynamics forecasting. A hydrodynamic model of the M.I. Stashkov mine was developed while solving option series of epignosis problems in terms of the chronology of mine field stoping. The abovementioned made it possible to identify regularities of the history of filtration, the capacity parameters of rock mass and the expansion of areas of heightened hydraulic conductivity as well as to evaluate qualitatively the water balance components of a carbonic watered formation and an overlying one. The stage of mining closure helped obtain the forecasting hydrodynamic solutions. The efficiency of measures, concerning reduction of water ingress into mine workings and the mitigation of surface ecological effects of mine flooding was evaluated quantitatively. It was determined that implementation of the water control procedures makes it possible to perform a 10–38% decrease in water ingress. In this context, they may be applied both independently and simultaneously. In terms of mine closure and flooding, a period of complete underground water recovery takes three years in the process, surface zones of potential waterlogging and swamping are developed within the floodplain of Samara River, located at the territory of Western Donbas (Ukraine). The scientific novelty is to define regularities of hydraulic conductivity transformation of the rock mass of a mine field starting from the mine working roof fall, up to its compaction during the mine operation period. To do that, nonstationary identification problems were solved, using numerical modeling. The abovementioned makes it possible to improve the reliability of hydrodynamic prognoses and develop technological schemes to control water at the state of the mine closure. |
| Databáze: | OpenAIRE |
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