Gas and rock outbursts occur in virtually all coalfields around the globe [1, 2]. Chinese
mining has currently been affected by the problem most; nearly one-third of all outbursts take …

With increasing depths of mines, complex, sudden, and devastating coal and gas outburst
become more frequent; however, the precise mechanisms of these disasters remain …

Rock and gas outbursts occur most frequently in coal mining. Gas-induced geodynamic
events in dolomite are a new and unexplored phenomenon. In the last time, two outbursts of …

Scarcity of research focusing on the evaluation of the coal seam methane pressure as a
parameter determining the outburst risk makes it difficult to assess the value for which the …

The Author endeavored to consult some of the Polish experts who deal with assessing and
preventing outburst hazards as to their knowledge and experience. On the basis of this …

In this paper, we present the problem of gas and dolomite outbursts in copper mines. The
energy balance of the phenomenon is analyzed. An examination of the porosity of the …

In the present paper, the authors discussed the functioning of their own analyzer for
measuring gas contained in the pore space of high strength rocks. A sample is placed inside …

Gas-induced geodynamic phenomena can occur during underground mining operations if
the porous structure of the rock is filled with gas at high pressure. In such cases, the original …

The present paper discusses the idea of an innovative device for sorption measurements,
working under isobaric conditions and based on a precise piston pressure regulator. As part …

Tectonic deformations in hard coal seams may be related with structurally deformed and
altered coal zones (so-called sheared zones). The example of such coal structure is shown …