ON THE POSSIBILITY OF IMPROVING THE SAFETY OF MINING OPERATIONS IN HIGHLY GASEOUS FORMATIONS
Abstract
At the current level of mining intensification, various geomechanical and gas-dynamic processes occur in the massif with uneven movement of the treatment face, which have a significant impact on the gas situation of the coal mine excavation site. As a result of the impact of rock pressure on the rocks of the roof and the soil of the formation, these processes often lead to dangerous phenomena (rock impacts, collapses, sudden emissions, etc.). When the roof rocks hang in the domes of the collapse zone, sufficiently large volumes of the gas mixture can accumulate. In the future, when the stress-strain state of the array changes, the accumulated gas can be squeezed out into the bottomhole space with maximum intensity. Such incidents often lead to gas contamination of existing workings, shutdowns of mining equipment, etc.To prevent the occurrence of accidents and, consequently, to increase the safety of mining operations in high-gas-bearing formations, it is an urgent task to forecast the geomechanical and gas-dynamic conditions during cleaning operations.
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Review
For citations:
Kiselyov D. ON THE POSSIBILITY OF IMPROVING THE SAFETY OF MINING OPERATIONS IN HIGHLY GASEOUS FORMATIONS. Bulletin of the Siberian State Industrial University. 2016;(4):23-26. (In Russ.)
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