Problem statement. At the present time in the quarry "Mir", due to its high watering with brines (over 1000 m3 / h), especially acute issue of mining, technical and environmental safety in further excavation of minerals.
Чередование в разрезе слоев пород с различной проницаемостью свойственно в той или иной степени большинству водоносных горизонтов, приуроченных к терригенным породам; выдержанные по фильтрационным свойствам зоны могут быть в ряде случаев выделены и в некоторых разновидностях трещиноватых коллекторов ...
Широкие исследования по проблеме охраны подземных вод в горнодобывающих районах, развернувшиеся в последние годы, к сожалению, часто слабо учитывают специфические аспекты этой проблемы, обусловленные технологией горного производства. Между тем специфика такого рода подчас существенно влияет на гидродинамический и гидрохимический режим подземных вод района ...
Engineering geology, being a science of geological cycle, is unthinkable at the same time without methods of engineering analysis. This trivial position, which is unlikely to be disputed by anyone in words, nevertheless is refuted in practice by many ...
The exploitation of large mining operations often leads to depletion of resources and deterioration of groundwater quality in large areas adjacent to open pits and mine fields ...
The theory of mass transfer serves as a foundation for research aimed at solving a wide range of hydrogeological problems. In the development of this theory, an important role, along with physical experiment, played analytical methods of solving differential equations of mass transfer ...
Mineral extraction is increasingly based on deposits with complex and very complex hydrogeological conditions. Such are, for example, deposits of the Kursk Magnetic Anomaly, Kansko-Achinsky and Dneprovsky coal basins. Sokolovsko-Sarbai group (iron ore), Predkarpattya sulfur-bearing basin and many others.
When groundwater head decreases by the value S, effective stresses in rocks increase by the value γ0S(γ0 - volumetric weight of water), as a result of which rocks undergo additional compression, which is accompanied by outflow of part of pore water.
The Lebedinskoye deposit belongs to the Staro-Oskol group of iron ore deposits in the KMA. Precambrian crystalline rocks overlain by sedimentary deposits of Paleozoic and Meso-Cenozoic age are developed in the area of the deposit. Iron ores are confined to the upper part of the Precambrian crystalline formations and occur at a depth of 60-120 meters. The overburden is represented (from bottom to top) by: Upper Jurassic sandy, in some places dusty, clays and clayey sands (0.5-25 m thick), Apt-Albian sands (20-35 m thick), marl and chalky rocks of Santon-Cognac-Turonian age (5-60 m thick) and Quaternary loess-like loams (10-20 m thick).
Widespread development of open-pit mining requires a differentiated approach to the principles and methods of pit dewatering depending on the type of geological structure of the deposit. The specifics of dewatering of sloping beds of rocks have already been paid attention to. The specifics of dewatering of sloping beds of aquiferous rocks are determined by a number of hydrogeological and engineering-geological factors.