Research Article

Identification of Mine Water Inrush Source Based on PCA-FDA: Xiandewang Coal Mine Case

Table 7

Samples to be identified and identification results.

Sample numberIndicator of water chemical compositionActual resultPCA-FDAFDA

1225.737.8219.3166.3314.5914.8929.22256.23III
2228.737.7942.5369.3413.59.5734.16323.95IIII
3227.237.2020.0066.7014.7216.3123.05269.66III
431.538.34172.887.822.9289.6571.62265.54IIIIIII
51062.596.9053.47306.6172.1115.96832.26352.02IIIIIIIII
6600.127.0012.54179.1637.0916.31367.97313.58IIIIIIIII
716.028.50220.703.611.7089.3529.64413.63IIIIII
812.018.00197.493.011.0978.3625.11373.37IIIII
97.517.80274.272.000.61120.222.23502.1IIIIII
10100.668.40268.8565.450.0023.54135.65507.28IVIVIV
110.4510.50323.242.200.0070.2044.04285.52IVIVIV
120.399.40299.792.200.0071.984.94579.18IVIVIV