Application of distance discriminance in identifying water inrush resource in similar coalmine
Abstract：The distance discriminant analysis model was established to predict the mine water inrushing sources effectively on the base of Jiaozuo mine area measured data by selecting six discrimination factors.The accuracy of distance discriminant analysis was checked by adopting gray related degree method.The distance discriminant analysis model and gray related degree method were used to Xin＇an mine area which hydrochemical character was similar to North-China type coalfields,and the gray related degree was also analyzed.The results show that the discrimination factors of six conventional ion concentration can solve inconsistency of unit.The gray related degree method can make sure that the selection of samples are been fully used and can make up for the two methods＇ deficiencies.The man-made influence factors can also be excluded by using the distance discriminant analysis model and the association degree of water samples can reach approximately 0.8.The carboniferous system aquifer of two mining areas have strong related degree.
Keywords：coal mine water inrushdiscrimination factorsdistance discriminant analysisgray related degree method
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)