Research Article

Risk Early Warning Evaluation of Coal Mine Water Inrush Based on Complex Network and Its Application

Table 6

Comprehensive characteristic parameters and weights of each index cloud model.

First-level indicators(Ex, En, He)Second-level indicators(Ex, En, He)

Mining conditions (U1)(0.682,0.100,0.006)0.1707475Mining disturbance U11(0.762,0.090,0.005)0.09025
Depth of mining floor failure U12(0.758,0.064,0.003)0.17396
Coal seam burial depth U13(0.730,0.044,0.003)0.02349
Working surface length U14(0.738,0.047,0.003)0.28202
Mining depth U15(0.655,0.084,0.005)0.09082
Reduce the strength of fractured rock mass U16(0.578,0.149,0.008)0.33941

Hydrological factors (U2)(0.701,0.082,0.004)0.610605Key position of the water barrier U21(0.745,0.092,0.005)0.23291
Ordovician water U22(0.719,0.080,0.004)0.47482
Aquifer U23(0.654,0.075,0.004)0.07802
Water barrier thickness U24(0.669,0.073,0.004)0.12155
Dynamic water pressure U25(0.571,0.108,0.006)0.06889
Ordovician water channel U26(0.585,0.086,0.004)0.02381

Geological structure (U3)(0.656,0.087,0.004)0.1647225Karst collapse column U31(0.746,0.077,0.004)0.04282
Fault U32(0.720,0.081,0.004)0.44905
Karst fissure development degree U33(0.601,0.076,0.004)0.21256
Collapse column U34(0.603,0.120,0.006)0.00821
Complex geological conditions U35(0.585,0.108,0.006)0.28406
Folds U36(0.575,0.106,0.005)0.00331

Human factors (U4)(0.501,0.083,0.005)0.05393Mining methods and processes U41(0.641,0.076,0.004)0.32893
Incomplete investigation of hidden dangers U42(0.449,0.105,0.006)0.25707
Illegal production U43(0.423,0.071,0.004)0.23631
Production organization management chaos U44(0.427,0.065,0.004)0.08967
Production technology management chaos U45(0.417,0.089,0.005)0.08803