DOI: 10.11799/ce201611014
Cause analysis and countermeasures for water inrush in fully mechanized top coal caving face in shallow coal seam outcrop area
XU Yan-chun
LV Bin
DONG Jian-ping
LIANG Shu-ping
Abstract：Based on the engineering background of water burst accident in cretaceous shallow coal seam of 1709-1 working face of Duolun Xiexin Coal Mine Inner Mongolia, geological model was established on the basis of borehole data, the impact of working face mining on aquifer and the features of overburden failure were comprehensively analyzed, the water source and water channel were found, confirmed the cause of water inrush was that, the working face bedrock was thinner in coal seam outcrop area, water flowing fractured zone affected to the basalt weak aquifer above the working face, which was supplied from strong water erosion at the border. The paper proposed countermeasures for prevention and control of water disasters in the outcrop area of shallow face, and formulate measures for water prevention and control, ensuring the safety for mining.
Keywords：coal outcrop areaworking face water-inrushbasalterosion zonecontrol of water disasters
Publication Date：2016-01-01
Pages：4( 46-49 )