Chainage

0+876 - 1+000

1+000 - 2+800

2+800 - 4+000

4+000 - 5+600

5+600 - 6+600

6+600 - 7+000

7+000 - 7+200

7+200 - 7+506

UCS

75

65

65

65

65

65

65

15

Block volume (Vb)

0.47

0.8

0.79

1.20

1.42

0.56

0.064

0.02

Joint roughness (Jr)

2

2

1

1

1

2

0.5

2

Joint length (jL)

0.75

0.75

0.75

0.75

1

0.75

0.75

0.75

Joint alteration (jA)

2

3

2

2

3

2

4

3

Condition factor (jC)

0.75

0.50

0.38

0.38

0.33

0.75

0.09

0.50

D

0.39

0.43

0.45

0.45

0.46

0.39

0.59

0.43

Jointing parameter (Jp)

0.13

0.13

0.11

0.13

0.14

0.14

0.01

0.03

Rmi ratings

9.66

8.36

7.16

8.64

8.82

8.97

0.78

0.40

Rock class

Strong

Strong

Strong

Strong

Strong

Strong

Medium

Medium