Piper-PCA-Fisher Recognition Model of Water Inrush Source: A Case Study of the Jiaozuo Mining Area
Table 1
Conventional hydrochemical ions in aquifers of Jiaozuo mining and samples to be measured (mg/L).
No.
Aquifer
Na+ + K+
Mg2+
Ca2+
Cl−
1
I
24.2
25.3
74
284.95
18.84
44
2
I
97.6
9.2
6.5
42.4
7
145
3
I
27.1
24.9
64.5
290.2
7
25
4
I
18.3
15.3
59.1
212.2
5
33
5
I
22.2
24
65.6
264.3
19.95
34.4
6
I
15.71
26.14
81.96
286.67
25.81
63.86
7
I
95.6
8.2
6.2
42.3
8
155
8
I
15.7
26.02
78.6
309.27
16.18
65.52
9
II
13.3
14.6
67
185.5
7.5
74.5
10
II
172.3
2.2
2.9
367.7
11
19
11
II
15.4
26.3
61.7
260.9
7.5
35.5
12
II
4.2
27.8
62
295.4
9
22.5
13
II
4.7
27.1
68.6
255.2
6.5
43.5
14
II
58
30.5
145.4
319.7
69.5
217
15
II
12.13
24.6
69.3
299.51
9.09
33.4
16
II
15.29
29.33
61.23
309.85
12.16
47.46
17
II
13.3
26.9
63.5
282.52
11.19
43.85
18
II
13.9
23.9
67.1
280.69
11.19
41.9
19
III
2.8
46.7
98.2
495.3
12.5
3
20
III
303.6
0.5
4.3
685.2
15
1.5
21
III
157.5
13.8
54.1
535.7
27.5
2
22
III
205.2
7
41.1
659.4
61
133
23
III
176.9
28.7
85
697.31
25.19
15.4
24
III
228.1
1.1
3.1
638.7
43.84
23.5
25
III
206.3
3
26.29
316.25
11.67
38.58
26
III
202.1
6.88
17.23
239.1
14.11
6.49
27
III
206.6
2.07
39.1
505.25
27.24
0
28
IV
266.6
6.1
24.9
503.9
26.5
69.5
29
IV
261
7.1
23
500
27.5
61.2
30
IV
60.3
21.4
54.5
193.8
33
85
31
IV
55.7
27.1
74.3
302.56
15.4
51.1
32
IV
55
25.5
72.7
294.71
15.4
47.3
33
IV
55.1
31.8
86.5
384.31
22.4
57.8
34
IV
59.25
31.1
99.2
361.12
29.85
83
35
IV
55.2
39.1
106.7
402.1
40.1
69.8
36
IV
62.6
21.8
56.3
196.78
24.6
74.2
37
IV
59.3
16.5
76.4
299.51
12.59
28.09
38
IV
256.1
5.3
23.4
507.3
24.1
68.2
A1
I
34.3
23.4
64.9
301.8
9.5
36.5
A2
I
30.3
16.2
72.5
248.7
16
52.5
A3
II
12.1
24.7
63
266.13
7.35
37.8
A4
II
12.7
39
67.1
281.57
8.82
46.5
A5
II
12
24.9
68.72
282.16
11.7
43.77
A6
II
7.4
24.8
55.2
256.6
5
19.5
A7
II
17.6
23.9
66.7
285.8
6.5
27.5
A8
III
263.3
2.2
4.7
630.3
8
2.5
A9
III
170.2
16.5
49.3
319.74
10.87
36.5
A10
III
177.3
18.4
52
366.78
56.06
40.41
A11
IV
54.61
35.3
90.5
361.7
16.04
86.8
A12
IV
63.3
20.6
98.2
354.4
20.24
53.2
A13
IV
62.2
38.7
84.21
280.49
56.6
119.74
Note. Ordovician limestone aquifer groundwater (simplified as type I), carboniferous limestone aquifer groundwater (simplified as type II), coal sandstone aquifer groundwater (simplified as type III), and Quaternary system aquifer groundwater (simplified as type IV). The water samples (numbers 1–38) are used to rebuild the model. The data (numbers A1–A13) in Table 1 are not used to build the model, which is only used to validate the model.
