为了评价潘北煤矿A1组煤底板突水危险性,分析了影响该矿井煤层底板突水的主控因素,利用GIS软件强大的空间分析功能,对影响矿井煤层底板的各个主控因素建立空间分布专题图;利用脆弱指数法建立主控因素体系,并确定各个主控因素对底板突水危险性贡献的权重,将各个主控因素进行无量纲处理后按照权重进行复合叠置,在定量化的基础上对矿井底板突水危险性进行分区,将底板已有出(突)水数据与分区结果比较,结果表明,脆弱性指数法可以客观、定量、有效地评价煤层底板突水危险性。
In order to assess the risk of Panbei coalmine A1 group water inrush from coal seam floor, the main controlling factors which affect the coal seam floor water inrush were analyzed. The spatial distribution map for each main controlling factor was established by using GIS with its powerful spatial analysis capabilities. Vulnerable index method was employed to set up a main controlling factor system and determine the weights of each main controlling factor. Dimensionless method was used to handle each main controlling factor for compositing these factor in GIS with the identified weights. A coal floor water inrush vulnerability zoning scheme was put forward based on the quantitative result. Compared with the water inrush data we have already know, linear vulnerable index method have many advantages in objective, quantitative and effective to assess the risk of coal seam floor water inrush.