中文摘要：

针对不同的煤层底板突水主控指标无量纲化方法会得到具有一定差异的突水危险性评价结果，对各种常见的指标无量纲化处理方法进行了整理和归类。以开滦矿区赵各庄矿最深水平煤层底板突水主控指标数据为例，根据各个指标值的属性特点，应用不同的无量纲化方法得到了不同的煤层底板突水危险性评价结果，对各无量纲化处理结果进行了对比分析。结果表明，不同无量纲化方法对综合评价结果的总体趋势一致，局部区域存在差异。最后，以Spearman等级相关系数进行无量纲化方法的优选，对比分析得出平均化处理方法更加科学合理。

英文摘要：

In view of the different assessments of a major index of water inrush from coal seam floor obtained by different nondimensionalization methods, the common methods were sum- marized and classified. The major index of water inrush from the deepest level of coal seam floor in Zhaogezhuang coal mine in Kailuan mining area being taken as an example, the different as- sessment results of water inrush from coal seam floor were obtained by different nondimensional- ization methods according to the characteristics of each index value. The comparison shows that the overall trend of different results is consistent except for partial differences in some areas. Fi- nally, the nondimensionalization methods were optimized using Spearman rank correlation coeffi- cient, and the comparative analysis shows that the equalization method is more scientific and rea- sonable.