Water inflow into mine under the influence of external boundary conditions at coal deposit exploitation (Kuzbass)

Relevance. Safety and efficiency of coal deposit development depends directly on natural hydrogeological conditions and their changes under the influence of mining deposits in various ways. Particularly significant and sudden complications can arise with high water cut of rocks, a sharp change in their filtration properties under the influence of mining operations or changes in supply of aquifer complexes. Multidirectional factors of water inflow of coal deposits determine the need to identify and analyze the leading factors in formation of water inflows into underground mines. The aim of the study is to analyze natural factors effecting the change in the magnitude of water inflows in mining solid minerals by the underground method using the example of coal mines in the central part of Kuzbass; study the hydrogeological conditions of coal deposits, using a similar method; identify regularities and group the leading factors in formation of water inflows into underground mining. Methodology. To study the magnitude of possible meteorological changes, the material was provided by specialized electronic databases, both monthly averages and urgent observations of air temperature and the amount of atmospheric precipitation. Information array processed by the weather station in Kedrovka (Kemerovo) for 1955 to 2015 was obtained from the All-Russian Scientific Research Institute of Hydrometeorological Information - World Data Center (VNIIGMI-WDC), literature sources and stock materials. The materials provided by the «Zarechnaya» LLC «Georesurs» Ltd., as well as the data on water inflows in Alexeyevskaya mine and 7 Noyabrya mine were used as the initial data on water inflows and filtration properties of rocks for monitoring geological environment on the fields. Processing meteorological parameters to identify their patterns is based on the use of statistical methods of data processing. The results are visualized using Microsoft Word, Exel, Surfer, AutoCad. Results. The authors have revealed the factors that have the greatest influence on formation of water inflow into the mine workings, and carried out the analysis of the change in climatic characteristics by the temporary statistical methods on randomness and presence of a trend using the Pitmen criterion and the inversion criterion, respectively. Based on the results of the research, a conceptual model of formation of water inflows into mining is constructed.