CHANGES OF PROPERTIES OF CARBONIFEROUS ROCK MASS AND THE OCCURRENCE OF SOME NATURAL HAZARDS IN THE CONDITIONS OF FLOODING OF ROADWAYS WITHIN ABANDONED COAL MINES
M. Bukowska, P. Bukowski
Central Mining Institute, Katowice, Poland
Keywords: Rock burst propensity, geomechanical hazards, water hazards, mine closure
Abstract
The authors asses water hazard and select methods to prevent it in the areas that are saturated with water and subjected to intensive drainage in the Upper Silesian Coal Basin. The research is important in the areas adjacent to the mines that are closed owing to flooding of roadways and hence is significant for the assessment of the influence of secondary saturation of the rock mass with water on the rock mass mined in an active mine. Changes to the occurrence conditions of the geodynamic phenomena of rock bursts are discussed in the context of the processes of restructuring mines and the associated processes of water inflow and flooding closed mines. The propensity of the rock mass to rock bursts in the border areas between active and closed mines is assessed.
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