Prediction of the Height of Water Flowing Fractured Zone Based on the MPSO-BP Neural Network Model

Table 1

The correlation degree and correlation order.

Mining depth	Mining thickness	Hard rock lithology proportion coefficient	Inclined length of working face	Mining method	Number of mining layers	Coal seam dip angle
0.7893	0.8037	0.7601	0.7916	0.7604	0.7795	0.7307
3	1	6	2	5	4	7