灰色关联分析方法在突水水源判别中的应用

The Application of Grey Correlation Analysis Method in Identification of Source of Outburst Water

本文以淮南潘北矿区突不同含水层组分作为对象,采用灰色关联度分析法对矿井突水水源进行判别分析,重点研究样本评判因子的选择对判别准确率的影响,结果发现判别因子的选取对判别结果影响较为显著,即在原有Na++K+、Ca2+、Mg2+、Cl-、SO42-、HCO3-等六个评判因子基础上,增加总硬度、碱度、矿化度和PH值作为新的评判因子,其水源判别准确率由62.5%增至100%。因此,选择适合评判因子对提高灰色关联判别可靠性具有重要意义。

The paper makes a study on the identification of outburst water source in various aquifers by using grey correla- tion analysis method. The result indicates that chose of assessment factors will affect the accuracy of identification. For exam ple, the accuracy of identification is 62.5% when taking Na＋ ＋ K＋ , Ca2＋ , Mg2＋ , Cl- , SO42- and HCO3 - as assessment factors, while it ups to 100% when add total hardness, degree of mineralization and alkalinity as assessment factors. The study concludes that rightful assessment factors affect accuracy of identification seriously.