石拉乌素矿首采面顶板志丹群水害危险性分区

Partition of Water Hazard on First Mining Face of Shilawusu Coal Mine

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 law of water hazard in coal seam roof, the first mining face of Shilawusu coalmine is taking as an example in the study. Analyzing the influencing factors of affecting the flood of Zhidan group, coal seam thickness, hard rock ratio, distance from coal seam to aquifer of Zhidan group and Zhidan group aquifer thickness are selected as the key factors of water hazard in the study area. GIS is applied to draw the figures of dimensionless, and the analytic hierarchy process is used to determine the weight of each factor. And then of multi-source geological information is processed by weighted superposition. The evaluation model based on GIS information fusion is established to achieve the Zhidan group water hazard zoning.