The estimation of a possibility of outburst origin in long mine workings

The article presents results from the possibility of creation of outbursts of coal and gas based on the calculation of the active forces, which try to create a heavy and passive forces, which prevent outbursts. Analysis of torrential Mine Paskov Staric plant shows that critical indicators to evaluate the potential susceptibility of coal and gas outbursts reported only a small number resulting from coal and gas outbursts an increased risk characterizing the second level of danger and requiring certain preventive measures. The aim of this paper is to point to other factors contributing to the potential of coal and gas outbursts (eg. strength of coal, the parameters of the work, its cross section, the circuit and daily practice, variability of seam thickness, the influence of tectonic perturbation) as well as using a mathematical model to suggest the possibility of its use in the evaluation of susceptibility of coal seams to outbursts of coal and gas. (authors)