DOI: 10.11799/ce201611058
Comprehensive evaluation for water hazard risk in coal seam roof of Jixian Mining Field and the preventive countermeasures
ZHANG Xiao-ming
WU Qiang
LIU Hong-yan
FENG Shu-shun
WANG Guang-di
Abstract：The coal roof water inrush of 9# coal in Jixian Mining Field is studied in this paper. According to the geology and hydro-geological data, the hydrogeological conceptual model was established. According to the “three maps” theory and numerical simulation, the height of water-flowing fractured zone of coal seam was compared with the rock cover thickness of roof aquifer, to determine the conduction relationship of coal seam and the aquifer. The direct water-filling aquifer′s water-richness index model of coal roof was built based on GIS and AHP , thus its direct water-filling aquifer′s water-richness partition was gained. Then through overlaid the direct water-filling aquifer′s water-richness partition and falling risk security partition of coal roof, the final comprehensive zoning map of water bursting conditions of the direct water-filling aquifer to coal roof was built. The numerical simulation method based on mining process was used to predict mine water inflow prediction and the corresponding measures for prevention and control of water was put forward.
Keywords：“three maps” theoryGISAHPnumerical simulationmine water inflow
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 56-59 )