Research Article
Identification of Mine Water Inrush Source Based on PCA-FDA: Xiandewang Coal Mine Case
Table 1
Training sample data (unit: mg/l).
| Sample number | Indicators of water chemical composition | Aquifer | Hardness | PH | Na++K+ | Ca2+ | Mg2+ | Cl- | SO42- | HCO3- |
| 1 | 199.71 | 7.36 | 11.95 | 62.32 | 10.70 | 14.89 | 106.19 | 108.59 | I | 2 | 182.19 | 7.90 | 16.32 | 52.71 | 12.28 | 11.35 | 30.46 | 200.72 | I | 3 | 224.73 | 7.53 | 15.63 | 64.13 | 15.69 | 13.83 | 16.46 | 261.11 | I | 4 | 271.78 | 7.50 | 15.40 | 79.56 | 17.75 | 14.18 | 54.33 | 277.59 | III | 5 | 246.25 | 7.83 | 14.25 | 70.74 | 16.90 | 19.15 | 42.39 | 244.64 | III | 6 | 278.29 | 7.59 | 46.21 | 68.34 | 26.14 | 18.08 | 79.30 | 331.88 | III | 7 | 252.26 | 7.68 | 24.60 | 64.33 | 22.25 | 12.41 | 56.39 | 281.25 | III | 8 | 204.21 | 8.05 | 164.38 | 37.88 | 26.63 | 34.39 | 39.10 | 578.36 | III | 9 | 6.42 | 7.60 | 145.53 | 24.65 | 12.89 | 72.69 | 9.47 | 393.50 | II | 10 | 11.44 | 7.60 | 79.78 | 63.53 | 11.07 | 34.39 | 26.75 | 366.05 | II | 11 | 11.51 | 8.77 | 299.10 | 2.81 | 1.09 | 85.10 | 130.48 | 444.75 | II | 12 | 0.45 | 10.50 | 323.24 | 2.20 | 0.00 | 323.24 | 0.00 | 2.20 | IV | 13 | 10.51 | 9.30 | 307.15 | 2.40 | 0.00 | 67.37 | 40.75 | 440.48 | IV | 14 | 10.51 | 9.30 | 307.15 | 2.40 | 0.00 | 67.37 | 40.75 | 440.48 | IV |
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