基于GIS和AHP的谢桥煤矿13-1煤顶板突水危险性评价

The water inrush risk assessment of roof of seam 13-1 in Xieqiao mine based on GIS and AHP

为解决谢桥矿13-1煤层顶板突水评价难题,利用Arc GIS的空间分析功能,通过对主控因素数据进行采集及归一化处理,建立子专题图层。然后运用AHP方法确定各主控因素的权重比例,在此基础上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,提出煤层顶板突水危险性的分区方案。将顶板已有出(突)水数据与分区结果比较,结果表明,线性脆弱性指数法可以客观、定量、准确的评价煤层顶板突水危险性。

In order to solve the problem of evaluation of water inrush risk of seam 13-1 in Xieqiao mine, the spatial analysis of ArcGIS was used to set up the special layers through the collection and normalization of the data of main control factors. The AHP method was used to determine the weighted proportion of each main control factor. The main control factors were superimposed according to the weight after the dimensionless processing, and the partitioning scheme of water inrush risk in coal seam was put forward. The results of comparison between water inrush data of roof and the partition show that the linear vulnerability index method can evaluate the water inrush risk in seam roof accurately, objectively and quantitatively.