Uncertainty Analysis of Water-Inrush from Floor Induced by Deep Mining

In order to analyze the reasons for water-inrush from floor induced by deep mining, timely discovery and prevent accidents of water-inrush from floor, using bifurcation tree analysis method to analysis of floor damage mechanism of deep coal seam mining, building floor damage model. Establish weight of each damage factor in the model by using analytic hierarchy process, and establish floor water-inrush level by using matter element extension evaluation method, timely forecast of water-inrush from floor conditions. Develop reasonable and effective control measures and remedies, and control of the security situation in the field of water-inrush.