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Shi X.-F.,University of Science and Technology Beijing | Jiang F.-X.,University of Science and Technology Beijing | Zhu H.-Z.,Hegang Sub Company of Heilongjiang Mining Industry Group | Song J.-C.,Hegang Sub Company of Heilongjiang Mining Industry Group | And 4 more authors.
Meitan Xuebao/Journal of the China Coal Society | Year: 2015

On the analysis of a major rock burst accident happening in extremely thick coal seam layered face of Junde Coal Mine, this investigation drew out the accident cause and countermeasures and the restoring production scheme was put forward. In order to restoring production, the following conditions should be satisfied: making the work face and roadway surrounding rock lie in a low stress and density state, eliminating the hidden rock burst danger of floor(bottom coal and thin floor), building reliable support, establishing efficient real-time monitoring system and defining reasonable mining intensity. In addition, the author realized the low stress and density through large diameter borehole, set up a real-time monitoring and early warning system through real-time stress monitoring assisted by micro-seismic monitoring and other monitoring measures, determining the mining density through dynamic stress monitoring. The scheme of restoring production established by the research result ensured the safety production in “3·15” accident work face in Junde Mine. ©, 2015, China Coal Society. All right reserved. Source

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