Table 3 Test sample characteristic particle size and grading evaluation indicators summary table.

From: Study on correlation between TBM tailings gradation and granitic gneiss surrounding rock stability

Type

Sample number

d10

d30

d50

d60

Cu

lg (Cu)

Cc

Sparsely fissured rock

1-1

0.34

2.56

7.20

10.58

29.95

1.49

2.98

1-2

0.36

2.21

8.11

12.26

30.83

1.53

1.80

1-3

0.43

2.80

6.99

9.47

33.70

1.34

1.09

Relatively developed fissures rock

2-1

2.27

12.63

21.50

26.45

11.63

1.07

2.65

2-2

2.56

15.08

27.23

33.49

13.08

1.12

2.65

2-3

3.76

18.01

29.76

36.60

9.74

0.99

2.36

Broken rock

3-1

0.06

0.18

4.62

6.21

103.63

2.02

0.09

3-2

0.05

0.11

1.50

3.87

84.28

1.93

0.07

3-3

0.07

0.22

6.89

9.46

142.21

2.15

0.08

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