Geomechanical State of Longwall in Polysaevskaya Coal Mine in Kuzbass
M. REUTER, M. KRACH, U. KIESSLING, J. VEKSLER
Marco Systemanalyse und Entwicklung GmbH, Hans-Boeckler-Str. 2, Dachau, 85221 Germany
Keywords: лава, пласт, напряжения, смещения, давление газа, разрушение, трещины, longwall, coal bed, stresses, displacements, gas pressure, failure, cracks
Abstract
The calculations of stress state and failure of rock mass in the vicinity of longwall in a coal bed with the high gas content in Polysaevskaya Mine, SUEK-Kuzbass, are described. The effect of the mining depth and coalbed gas pressure on the geomechanical situation in the longwall is illustrated. The authors discuss scenarios of directed crack formation in front of the longwall.
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