Table 21 Test group image recognition results.

From: Research on the optimization of optimal blasting parameters and fragmentation control based on coal seam geological conditions

Section No

Final coal rate (%)

Lump coal rate (%)

Large diameter lump coal rate (%)

Large caliber (%)

1

23.67

33.16

35.74

7.43

2

23.84

34.56

34.62

6.98

3

24.03

34.11

34.32

7.54

4

24.32

33.75

33.91

8.02

5

25.01

33.23

34.63

7.13

6

24.47

33.72

34.35

7.46

7

23.85

33.46

35.33

7.36

Average

24.17

33.71

34.70

7.42

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