Table 8 Comparison of the area and percentages of relative tectonic complexity of the exposed area of the No. 3 coal seam in the Sangshuping coal mine.

From: Quantitative evaluation and prediction of the relative complexity of Sangshuping coal mine tectonics in the Hancheng mining area

Evaluation method

Relative tectonic complexity

Total

Complex

Medium

Simple

Quantitative evaluation based on the entropy function

Northern exposed area

Area (km2)

0.03

2.61

1.71

4.35

Percentage (%)

0.69

60.00

39.31

100.00

Southern exposed area

Area (km2)

0.03

0.84

1.39

2.26

Percentage (%)

1.33

37.17

61.50

100.00

Predictive evaluation based on the regression equation

Northern exposed area

Area (km2)

0.00

2.11

2.24

4.35

Percentage (%)

0.00

48.51

51.49

100.00

Southern exposed area

Area (km2)

0.00

0.28

1.98

2.26

Percentage (%)

0.00

12.39

87.61

100.00