深部煤层底板寒灰水突水脆弱性评价

平顶山十一矿因靠近寒武系灰岩岩溶水补给区，水文地质条件复杂，受煤层底板的突水威胁严重。为了查明寒武系灰岩岩溶承压水对二1煤开采的威胁，对突水影响因素进行了综合分析，采用基于AHP的脆弱性指数法对平顶山十一矿深部煤层底板突水进行了突水危险性评价。结果表明:4个寒灰水突水点都分布在相对脆弱区、相对较脆弱区和过渡区，拟合点与评价分区基本吻合，拟合率接近100%。

Vulnerability assessment of the Cambrian limestone water inrush from coal seam floor in the deep part

Pingdingshan No.11 Coal Mine is threatened by water inrush from coal seam floor，because it is near by the Cambrian limestone karst water recharge area，hydrogeological conditions are very complicated. To find out the threat of Cambrian limestone karst confined water on Ⅱ₁ coal seam，through the comprehensive analysis of the influencing factors on water inrush，the vulnerability assessment of coal floor groundwater bursting based on AHP was used to carry out water inrush risk assessment for the water inrush from the bottom of the deep coal seam floor in Pingdingshan No.11 Coal Mine. The results show that，the four Cambrian limestone water inrush water points are distributed in the relatively fragile area，relatively fragile zone and transition zone，and the fitting points are basically consistent with the evaluation zones，the fitting rate is nearly 100%.