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为更好地评判工作面能否实现安全开采,在系统收集现场煤矿开采底板突水资料的基础上,不仅采用突水系数、含水层富水性作为评价指标,还将突水水源按照其自新至老及其组合方式进行了分类并作为其中一个评价因子。采用单一Fisher评判和AHP赋权-Fisher评判方法建立工作面安全开采底板危险性评价模型并进行了对比,发现经过AHP赋权后的样本数据类内分布更加密集,其Fisher评判模型比单一的Fisherr评判模型具有更高的可信度。
In order to better judge whether the working face can realize safe mining, on the basis of collecting data of water inrush from coal mining floor on site, not only water inrush coefficient and water-rich aquifer are used as evaluation indexes, but also inrush water sources according to their own To old and its combination of classification and as one of the evaluation factor. The single Fisher evaluation and AHP empowerment-Fisher judgment method were used to establish the safety evaluation model of the safety mining face and the comparison was made. It was found that the AHP-weighted sample data was more densely distributed within the class, Judgment model has a higher credibility.