平煤股份二矿庚_(20)煤层突水危险性分析

Analysis of the water inrush risk of geng 20 coal seam in Pingdingshan coal shares NO.2 mine

通过分析庚20煤层突水因素,采用突水系数法进行底板突水危险性计算,综合分析得到庚20煤层的非突水威胁区位于矿井浅中部,西翼-380 m标高以上,东翼-260 m标高以上;突水威胁区位于矿井深部,煤层底板标高在-350^-800m之间,突水危险区位于矿井东翼三水平-260^-350 m之间。

Through the analysis of water inrush factors of coal seam, calculate the water inrush risk using the water inrush coefficient method, it showed that the no water inrush threatened area locates the shallow of mine, that is above-380 m in the west, and is above-260 m in the east; the water inrush threatened area locates the deep of mine that is between-350 m and-800 m, the water inrush danger zone is between-260 m and-350 m in the east of mine