Analysis of Key Factors Affecting Water Disaster in Deep Mining and Establishment of a Water Disaster Evaluation Method Suitable for Different Mining Depths
Table 6
Application cases in the North China coalfield evaluated by the - method.
No.
Mining face
(m)
(MPa)
(L/(s·m))
(MPa/m)
(MPa/m)
Evaluation results
Field verification
A
III628, Zhuzhuang mine, Huaibei mining area
408.47
4.22
0.016
0.140
∞
Safety
Safety
B
III616, Yangzhuang mine, Huaibei mining area
518.25
5.50
0.052
0.110
∞
Safety
Safety
C
1044, Liudian mine, Huaibei mining area
680.08
6.93
0.024
0.210
∞
Safety
Safety
D
1037, Liudian mine, Huaibei mining area
659.66
6.60
0.024
0.330
∞
Safety
Safety
E
1088, Heishan mine, Zibo mining area
594.26
6.23
0.032
0.130
∞
Safety
Safety
F
11022, Jiulishan mine, Jiaozuo mining area
108.85
1.19
24.450
0.052
0.0090
Water inrush with (high danger)
Water inrush with
G
9507, Xiangzhuang mine, Feicheng mining area
80.18
0.92
8.330
0.038
0.0126
Water inrush with (danger)
Water inrush with
H
4221, Jiaoxi mine, Jiaozuo mining area
93.62
1.00
12.620
0.053
0.0111
Water inrush with (danger)
Water inrush with
I
12031, Jiulishan mine, Jiaozuo mining area
81.95
0.92
11.330
0.041
0.0115
Water inrush with (danger)
Water inrush with
J
1007, Fucun mine, Zibo mining area
125.13
1.46
7.120
0.043
0.0133
Water inrush with (danger)
Water inrush with
K
4231, Jiaoxi mine, Jiaozuo mining area
109.88
1.17
3.33
0.059
0.0168
Water inrush with (danger)
Water inrush with
L
9304, Shida mine, Zibo mining area
182.12
1.96
5.88
0.071
0.0141
Water inrush with (danger)
Water inrush with
M
10401, Taoyang mine, Feicheng mining area
43.40
0.54
1.67
0.024
0.0209
Water inrush with (relatively safe)
Water inrush with
N
42013, Jiaoxi mine, Jiaozuo mining area
72.24
0.8
1.17
0.04
0.0234
Water inrush with (relatively safe)
Water inrush with
O
11051, Jiulishan mine, Jiaozuo mining area
139.32
1.5
0.72
0.063
0.0273
Water inrush with (relatively safe)
Water inrush with
P
9301, Shida mine, Zibo mining area
225.28
2.42
0.39
0.078
0.0331
Water inrush with (relatively safe)
Water inrush with
Q
9302, Shida mine, Zibo mining area
176.57
1.91
0.58
0.068
0.0292
Water inrush with (relatively safe)
Water inrush with
R
9307, Shida mine, Zibo mining area
148.54
1.64
1
0.057
0.0246
Water inrush with (relatively safe)
Water inrush with
S
9019, Shida mine, Zibo mining area
140.63
1.54
0.08
0.058
0.0545
Water inrush with (relatively safe)
Water inrush with
T
1095, Xiazhuang mine, Zibo mining area
190.36
2.05
1
0.072
0.0246
Water inrush with (relatively safe)
Water inrush with
Note: ∞ indicates a larger, but not definitive, value of ; the distribution of the cases can be seen in Figure 14.
