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为了查明煤层顶板水害危险性分布规律,以石拉乌素矿首采面为例,分析确定影响志丹群水害的影响因素,选取煤层厚度、硬岩比例系数、煤层至志丹群含水层的距离以及志丹群含水层厚度作为研究区水害危险性的关键因素。应用GIS绘制出各专题无量纲化图;采用层次分析法确定出各因素的权重;并对多源地学信息进行加权叠加,建立基于GIS的信息融合性评价模型,实现对志丹群水害危险性分区。
In order to find out the distribution rules of coal seam roof water hazard, taking the first mining face of Shilawusu mine as an example, the influencing factors of water hazard of Zhidan Group were analyzed and determined. The thickness of coal seam, proportion coefficient of hard rock, coal seam to Zhidan Group aquifer As well as the thickness of the Zhidan aquifer as the key factors of water hazard in the study area. GIS is used to draw the non-dimensional map of each topic; the analytic hierarchy process is used to determine the weight of each factor; and the weighted summation of multi-source geoscience information is used to build a GIS-based information fusion evaluation model to realize the water hazard risk Partition.